SEQUEL_ADAPTER_TEST = :postgres

require File.join(File.dirname(File.expand_path(__FILE__)), 'spec_helper.rb')

uses_pg = Sequel::Postgres::USES_PG if DB.adapter_scheme == :postgres
uses_pg_or_jdbc = uses_pg || DB.adapter_scheme == :jdbc
# SEQUEL5: Remove native handling

def DB.sqls
  (@sqls ||= [])
end
logger = Object.new
def logger.method_missing(m, msg)
  DB.sqls << msg
end
DB.loggers << logger

DB.extension :pg_array, :pg_hstore, :pg_range, :pg_row, :pg_inet, :pg_json, :pg_enum
begin
  DB.extension :pg_interval
rescue LoadError
end

describe "PostgreSQL", '#create_table' do
  before do
    @db = DB
    @db.test_connection
    DB.sqls.clear
  end
  after do
    @db.drop_table?(:tmp_dolls, :unlogged_dolls)
  end

  it "should create a temporary table" do
    @db.create_table(:tmp_dolls, :temp => true){text :name}
    check_sqls do
      @db.sqls.must_equal ['CREATE TEMPORARY TABLE "tmp_dolls" ("name" text)']
    end
  end

  it "temporary table should support :on_commit option" do
    @db.drop_table?(:some_table)
    @db.transaction do
      @db.create_table(:some_table, :temp => true, :on_commit => :drop){text :name}
    end
    @db.table_exists?(:some_table).must_equal false

    @db.transaction do
      @db.create_table(:some_table, :temp => true, :on_commit => :delete_rows){text :name}
      @db[:some_table].insert('a')
    end
    @db.table_exists?(:some_table).must_equal true
    @db[:some_table].empty?.must_equal true

    @db.drop_table(:some_table)
    @db.transaction do
      @db.create_table(:some_table, :temp => true, :on_commit => :preserve_rows){text :name}
      @db[:some_table].insert('a')
    end
    @db.table_exists?(:some_table).must_equal true
    @db[:some_table].count.must_equal 1
    @db.drop_table(:some_table)
  end

  it "temporary table should accept :on_commit with :as option" do
    @db.drop_table?(:some_table)
    @db.transaction do
      @db.create_table(:some_table, :temp => true, :on_commit => :drop, :as => 'select 1')
    end
    @db.table_exists?(:some_table).must_equal false
  end

  it ":on_commit should raise error if not used on a temporary table" do
    proc{@db.create_table(:some_table, :on_commit => :drop)}.must_raise(Sequel::Error)
  end

  it ":on_commit should raise error if given unsupported value" do
    proc{@db.create_table(:some_table, :temp => true, :on_commit => :unsupported){text :name}}.must_raise(Sequel::Error)
  end

  it "should create an unlogged table" do
    @db.create_table(:unlogged_dolls, :unlogged => true){text :name}
    check_sqls do
      @db.sqls.must_equal ['CREATE UNLOGGED TABLE "unlogged_dolls" ("name" text)']
    end
  end

  it "should create a table inheriting from another table" do
    @db.create_table(:unlogged_dolls){text :name}
    @db.create_table(:tmp_dolls, :inherits=>:unlogged_dolls){}
    @db[:tmp_dolls].insert('a')
    @db[:unlogged_dolls].all.must_equal [{:name=>'a'}]
  end

  it "should create a table inheriting from multiple tables" do
    begin
      @db.create_table(:unlogged_dolls){text :name}
      @db.create_table(:tmp_dolls){text :bar}
      @db.create_table!(:items, :inherits=>[:unlogged_dolls, :tmp_dolls]){text :foo}
      @db[:items].insert(:name=>'a', :bar=>'b', :foo=>'c')
      @db[:unlogged_dolls].all.must_equal [{:name=>'a'}]
      @db[:tmp_dolls].all.must_equal [{:bar=>'b'}]
      @db[:items].all.must_equal [{:name=>'a', :bar=>'b', :foo=>'c'}]
    ensure
      @db.drop_table?(:items)
    end
  end

  it "should not allow to pass both :temp and :unlogged" do
    proc do
      @db.create_table(:temp_unlogged_dolls, :temp => true, :unlogged => true){text :name}
    end.must_raise(Sequel::Error, "can't provide both :temp and :unlogged to create_table")
  end

  it "should support :if_exists option to drop_column" do
    @db.create_table(:tmp_dolls){Integer :a; Integer :b}
    2.times do
      @db.drop_column :tmp_dolls, :b, :if_exists=>true
      @db[:tmp_dolls].columns.must_equal [:a]
    end
  end if DB.server_version >= 90000

  it "should support pg_loose_count extension" do
    @db.extension :pg_loose_count
    @db.create_table(:tmp_dolls){text :name}
    @db.loose_count(:tmp_dolls).must_be_kind_of(Integer)
    @db.loose_count(:tmp_dolls).must_equal 0
    @db.loose_count(Sequel[:public][:tmp_dolls]).must_equal 0
    @db[:tmp_dolls].insert('a')
    @db << 'VACUUM ANALYZE tmp_dolls'
    @db.loose_count(:tmp_dolls).must_equal 1
    @db.loose_count(Sequel[:public][:tmp_dolls]).must_equal 1
  end
end

describe "PostgreSQL views" do
  before do
    @db = DB
    @db.drop_table?(:items, :cascade=>true)
    @db.create_table(:items){Integer :number}
    @db[:items].insert(10)
    @db[:items].insert(20)
  end
  after do
    @opts ||={}
    @db.drop_view(:items_view, @opts.merge(:if_exists=>true, :cascade=>true)) rescue nil
    @db.drop_table?(:items)
  end

  it "should support temporary views" do
    @db.create_view(:items_view, @db[:items].where(:number=>10), :temp=>true)
    @db[:items_view].map(:number).must_equal [10]
    @db.create_or_replace_view(:items_view, @db[:items].where(:number=>20),  :temp=>true)
    @db[:items_view].map(:number).must_equal [20]
  end

  it "should support recursive views" do
    @db.create_view(:items_view, @db[:items].where(:number=>10).union(@db[:items, :items_view].where(Sequel.-(:number, 5)=>:n).select(:number), :all=>true, :from_self=>false), :recursive=>[:n])
    @db[:items_view].select_order_map(:n).must_equal [10]
    @db[:items].insert(15)
    @db[:items_view].select_order_map(:n).must_equal [10, 15, 20]
  end if DB.server_version >= 90300

  it "should support materialized views" do
    @opts = {:materialized=>true}
    @db.create_view(:items_view, @db[:items].where{number >= 10}, @opts)
    @db[:items_view].select_order_map(:number).must_equal [10, 20]
    @db[:items].insert(15)
    @db[:items_view].select_order_map(:number).must_equal [10, 20]
    @db.refresh_view(:items_view)
    @db[:items_view].select_order_map(:number).must_equal [10, 15, 20]
    @db.views.wont_include :items_view
    @db.views(@opts).must_include :items_view
  end if DB.server_version >= 90300

  it "should support refreshing materialized views concurrently" do
    @opts = {:materialized=>true}
    @db.create_view(:items_view, @db[:items].where{number >= 10}, @opts)
    @db.refresh_view(:items_view)
    proc{@db.refresh_view(:items_view, :concurrently=>true)}.must_raise(Sequel::DatabaseError)
    @db.add_index :items_view, :number, :unique=>true
    @db.refresh_view(:items_view, :concurrently=>true)
  end if DB.server_version >= 90400

  it "should support :if_exists=>true for not raising an error if the view does not exist" do
    @db.drop_view(:items_view, :if_exists=>true)
  end
end 
    
describe "PostgreSQL", 'INSERT ON CONFLICT' do
  before(:all) do
    @db = DB
    @db.create_table!(:ic_test){Integer :a; Integer :b; Integer :c; TrueClass :c_is_unique, :default=>false; unique :a, :name=>:ic_test_a_uidx; unique [:b, :c], :name=>:ic_test_b_c_uidx; index [:c], :where=>:c_is_unique, :unique=>true}
    @ds = @db[:ic_test]
  end
  before do
    @ds.delete
  end
  after(:all) do
    @db.drop_table?(:ic_test)
  end

  it "Dataset#insert_ignore and insert_conflict should ignore uniqueness violations" do
    @ds.insert(1, 2, 3)
    @ds.insert(10, 11, 3, true)
    proc{@ds.insert(1, 3, 4)}.must_raise Sequel::UniqueConstraintViolation
    proc{@ds.insert(11, 12, 3, true)}.must_raise Sequel::UniqueConstraintViolation
    @ds.insert_ignore.insert(1, 3, 4).must_be_nil
    @ds.insert_conflict.insert(1, 3, 4).must_be_nil
    @ds.insert_conflict.insert(11, 12, 3, true).must_be_nil
    @ds.insert_conflict(:target=>:a).insert(1, 3, 4).must_be_nil
    @ds.insert_conflict(:target=>:c, :conflict_where=>:c_is_unique).insert(11, 12, 3, true).must_be_nil
    @ds.insert_conflict(:constraint=>:ic_test_a_uidx).insert(1, 3, 4).must_be_nil
    @ds.all.must_equal [{:a=>1, :b=>2, :c=>3, :c_is_unique=>false}, {:a=>10, :b=>11, :c=>3, :c_is_unique=>true}]
  end

  it "Dataset#insert_ignore and insert_conflict should work with multi_insert/import" do
    @ds.insert(1, 2, 3)
    @ds.insert_ignore.multi_insert([{:a=>1, :b=>3, :c=>4}])
    @ds.insert_ignore.import([:a, :b, :c], [[1, 3, 4]])
    @ds.all.must_equal [{:a=>1, :b=>2, :c=>3, :c_is_unique=>false}]
    @ds.insert_conflict(:target=>:a, :update=>{:b=>3}).import([:a, :b, :c], [[1, 3, 4]])
    @ds.all.must_equal [{:a=>1, :b=>3, :c=>3, :c_is_unique=>false}]
    @ds.insert_conflict(:target=>:a, :update=>{:b=>4}).multi_insert([{:a=>1, :b=>5, :c=>6}])
    @ds.all.must_equal [{:a=>1, :b=>4, :c=>3, :c_is_unique=>false}]
    end

  it "Dataset#insert_conflict should handle upserts" do
    @ds.insert(1, 2, 3)
    @ds.insert_conflict(:target=>:a, :update=>{:b=>3}).insert(1, 3, 4).must_be_nil
    @ds.all.must_equal [{:a=>1, :b=>3, :c=>3, :c_is_unique=>false}]
    @ds.insert_conflict(:target=>[:b, :c], :update=>{:c=>5}).insert(5, 3, 3).must_be_nil
    @ds.all.must_equal [{:a=>1, :b=>3, :c=>5, :c_is_unique=>false}]
    @ds.insert_conflict(:constraint=>:ic_test_a_uidx, :update=>{:b=>4}).insert(1, 3).must_be_nil
    @ds.all.must_equal [{:a=>1, :b=>4, :c=>5, :c_is_unique=>false}]
    @ds.insert_conflict(:constraint=>:ic_test_a_uidx, :update=>{:b=>5}, :update_where=>{Sequel[:ic_test][:b]=>4}).insert(1, 3, 4).must_be_nil
    @ds.all.must_equal [{:a=>1, :b=>5, :c=>5, :c_is_unique=>false}]
    @ds.insert_conflict(:constraint=>:ic_test_a_uidx, :update=>{:b=>6}, :update_where=>{Sequel[:ic_test][:b]=>4}).insert(1, 3, 4).must_be_nil
    @ds.all.must_equal [{:a=>1, :b=>5, :c=>5, :c_is_unique=>false}]
  end

  it "Dataset#insert_conflict should respect expressions in the target argument" do
    @ds.insert_conflict(:target=>:a).insert_sql(1, 2, 3).must_equal "INSERT INTO \"ic_test\" VALUES (1, 2, 3) ON CONFLICT (\"a\") DO NOTHING"
    @ds.insert_conflict(:target=>:c, :conflict_where=>{:c_is_unique=>true}).insert_sql(1, 2, 3).must_equal "INSERT INTO \"ic_test\" VALUES (1, 2, 3) ON CONFLICT (\"c\") WHERE (\"c_is_unique\" IS TRUE) DO NOTHING"
    @ds.insert_conflict(:target=>[:b, :c]).insert_sql(1, 2, 3).must_equal "INSERT INTO \"ic_test\" VALUES (1, 2, 3) ON CONFLICT (\"b\", \"c\") DO NOTHING"
    @ds.insert_conflict(:target=>[:b, Sequel.function(:round, :c)]).insert_sql(1, 2, 3).must_equal "INSERT INTO \"ic_test\" VALUES (1, 2, 3) ON CONFLICT (\"b\", round(\"c\")) DO NOTHING"
    @ds.insert_conflict(:target=>[:b, Sequel.virtual_row{|o| o.round(:c)}]).insert_sql(1, 2, 3).must_equal "INSERT INTO \"ic_test\" VALUES (1, 2, 3) ON CONFLICT (\"b\", round(\"c\")) DO NOTHING"
  end
end if DB.server_version >= 90500

describe "A PostgreSQL database" do
  before(:all) do
    @db = DB
    @db.create_table!(Sequel[:public][:testfk]){primary_key :id; foreign_key :i, Sequel[:public][:testfk]}
  end
  after(:all) do
    @db.drop_table?(Sequel[:public][:testfk])
  end

  it "should provide the server version" do
    @db.server_version.must_be :>,  70000
  end

  it "should create a dataset using the VALUES clause via #values" do
    @db.values([[1, 2], [3, 4]]).map([:column1, :column2]).must_equal [[1, 2], [3, 4]]
  end

  it "should support ordering in aggregate functions" do
    @db.from(@db.values([['1'], ['2']]).as(:t, [:a])).get{string_agg(:a, '-').order(Sequel.desc(:a)).as(:c)}.must_equal '2-1'
  end if DB.server_version >= 90000

  it "should support ordering and limiting with #values" do
    @db.values([[1, 2], [3, 4]]).reverse(:column2, :column1).limit(1).map([:column1, :column2]).must_equal [[3, 4]]
    @db.values([[1, 2], [3, 4]]).reverse(:column2, :column1).offset(1).map([:column1, :column2]).must_equal [[1, 2]]
  end

  it "should support subqueries with #values" do
    @db.values([[1, 2]]).from_self.cross_join(@db.values([[3, 4]]).as(:x, [:c1, :c2])).map([:column1, :column2, :c1, :c2]).must_equal [[1, 2, 3, 4]]
  end

  it "should respect the :read_only option per-savepoint" do
    proc{@db.transaction{@db.transaction(:savepoint=>true, :read_only=>true){@db[Sequel[:public][:testfk]].insert}}}.must_raise(Sequel::DatabaseError)
    proc{@db.transaction(:auto_savepoint=>true, :read_only=>true){@db.transaction(:read_only=>false){@db[Sequel[:public][:testfk]].insert}}}.must_raise(Sequel::DatabaseError)
    @db[Sequel[:public][:testfk]].delete
    @db.transaction{@db[Sequel[:public][:testfk]].insert; @db.transaction(:savepoint=>true, :read_only=>true){@db[Sequel[:public][:testfk]].all;}}
    @db.transaction{@db.transaction(:savepoint=>true, :read_only=>true){}; @db[Sequel[:public][:testfk]].insert}
    @db.transaction{@db[Sequel[:public][:testfk]].all; @db.transaction(:savepoint=>true, :read_only=>true){@db[Sequel[:public][:testfk]].all;}}
  end

  it "should support disable_insert_returning" do
    ds = @db[Sequel[:public][:testfk]].disable_insert_returning
    ds.delete
    ds.insert.must_be_nil
    id = ds.max(:id)
    ds.select_order_map([:id, :i]).must_equal [[id, nil]]
    ds.insert(:i=>id).must_be_nil
    ds.select_order_map([:id, :i]).must_equal [[id, nil], [id+1, id]]
    ds.insert_select(:i=>ds.max(:id)).must_be_nil
    ds.select_order_map([:id, :i]).must_equal [[id, nil], [id+1, id]]
    c = Class.new(Sequel::Model(ds))
    c.class_eval do
      def before_create
        self.id = model.max(:id)+1
        super
      end
    end
    c.create(:i=>id+1).must_equal c.load(:id=>id+2, :i=>id+1)
    ds.select_order_map([:id, :i]).must_equal [[id, nil], [id+1, id], [id+2, id+1]]
    ds.delete
  end

  it "should support functions with and without quoting" do
    ds = @db[Sequel[:public][:testfk]]
    ds.delete
    ds.insert
    ds.get{sum(1)}.must_equal 1
    ds.get{Sequel.function('pg_catalog.sum', 1)}.must_equal 1
    ds.get{sum.function(1)}.must_equal 1
    ds.get{pg_catalog[:sum].function(1)}.must_equal 1
    ds.delete
  end

  it "should support a :qualify option to tables and views" do
    @db.tables(:qualify=>true).must_include(Sequel.qualify('public', 'testfk'))
    begin
      @db.create_view(:testfkv, @db[:testfk])
      @db.views(:qualify=>true).must_include(Sequel.qualify('public', 'testfkv'))
    ensure
      @db.drop_view(:testfkv)
    end
  end

  it "should handle double underscores in tables when using the qualify option" do
    @db.create_table!(Sequel.qualify(:public, 'test__fk')){Integer :a}
    @db.tables(:qualify=>true).must_include(Sequel.qualify('public', 'test__fk'))
    @db.drop_table(Sequel.qualify(:public, 'test__fk'))
  end

  it "should not typecast the int2vector type incorrectly" do
    @db.get(Sequel.cast('10 20', :int2vector)).wont_equal 10
  end

  cspecify "should not typecast the money type incorrectly", [:do] do
    @db.get(Sequel.cast('10.01', :money)).wont_equal 0
  end

  it "should correctly parse the schema" do
    @db.schema(Sequel[:public][:testfk], :reload=>true).map{|c,s| [c, s[:oid]]}.must_equal [[:id, 23], [:i, 23]]
  end

  it "should parse foreign keys for tables in a schema" do
    @db.foreign_key_list(Sequel[:public][:testfk]).must_equal [{:on_delete=>:no_action, :on_update=>:no_action, :columns=>[:i], :key=>[:id], :deferrable=>false, :table=>Sequel.qualify(:public, :testfk), :name=>:testfk_i_fkey}]
  end

  it "should return uuid fields as strings" do
    @db.get(Sequel.cast('550e8400-e29b-41d4-a716-446655440000', :uuid)).must_equal '550e8400-e29b-41d4-a716-446655440000'
  end

  it "should handle inserts with placeholder literal string tables" do
    ds = @db.from(Sequel.lit('?', :testfk))
    ds.delete
    ds.insert(:id=>1)
    ds.select_map(:id).must_equal [1]
  end

  it "should have notice receiver receive notices" do
    a = nil
    Sequel.connect(DB.opts.merge(:notice_receiver=>proc{|r| a = r.result_error_message})){|db| db.do("BEGIN\nRAISE WARNING 'foo';\nEND;")}
    a.must_equal "WARNING:  foo\n"
  end if uses_pg && DB.server_version >= 90000

  # These only test the SQL created, because a true test using file_fdw or postgres_fdw
  # requires superuser permissions, and you should not be running the tests as a superuser.
  it "should support creating and dropping foreign tables" do
    DB.send(:create_table_sql, :t, DB.create_table_generator{Integer :a}, :foreign=>:f, :options=>{:o=>1}).must_equal 'CREATE FOREIGN TABLE "t" ("a" integer) SERVER "f" OPTIONS (o \'1\')'
    DB.send(:drop_table_sql, :t, :foreign=>true).must_equal 'DROP FOREIGN TABLE "t"'
  end
end

describe "A PostgreSQL database with domain types" do
  before(:all) do
    @db = DB
    @db << "DROP DOMAIN IF EXISTS positive_number CASCADE"
    @db << "CREATE DOMAIN positive_number AS numeric(10,2) CHECK (VALUE > 0)"
    @db.create_table!(:testfk){positive_number :id, :primary_key=>true}
  end
  after(:all) do
    @db.drop_table?(:testfk)
    @db << "DROP DOMAIN positive_number"
  end

  it "should correctly parse the schema" do
    sch = @db.schema(:testfk, :reload=>true)
    sch.first.last.delete(:domain_oid).must_be_kind_of(Integer)
    sch.first.last[:db_domain_type].must_equal 'positive_number'
  end
end

describe "A PostgreSQL dataset" do
  before(:all) do
    @db = DB
    @d = @db[:test]
    @db.create_table! :test do
      text :name
      integer :value, :index => true
    end
  end
  before do
    @d.delete
    @db.sqls.clear
  end
  after do
    @db.drop_table?(:atest)
  end
  after(:all) do
    @db.drop_table?(:test)
  end

  it "should quote columns and tables using double quotes if quoting identifiers" do
    check_sqls do
      @d.select(:name).sql.must_equal 'SELECT "name" FROM "test"'
      @d.select(Sequel.lit('COUNT(*)')).sql.must_equal 'SELECT COUNT(*) FROM "test"'
      @d.select(Sequel.function(:max, :value)).sql.must_equal 'SELECT max("value") FROM "test"'
      @d.select(Sequel.function(:NOW)).sql.must_equal 'SELECT NOW() FROM "test"'
      @d.select(Sequel.function(:max, Sequel[:items][:value])).sql.must_equal 'SELECT max("items"."value") FROM "test"'
      @d.order(Sequel.desc(:name)).sql.must_equal 'SELECT * FROM "test" ORDER BY "name" DESC'
      @d.select(Sequel.lit('test.name AS item_name')).sql.must_equal 'SELECT test.name AS item_name FROM "test"'
      @d.select(Sequel.lit('"name"')).sql.must_equal 'SELECT "name" FROM "test"'
      @d.select(Sequel.lit('max(test."name") AS "max_name"')).sql.must_equal 'SELECT max(test."name") AS "max_name" FROM "test"'
      @d.insert_sql(:x => :y).must_match(/\AINSERT INTO "test" \("x"\) VALUES \("y"\)( RETURNING NULL)?\z/)

      @d.select(Sequel.function(:test, :abc, 'hello')).sql.must_equal "SELECT test(\"abc\", 'hello') FROM \"test\""
      @d.select(Sequel.function(:test, Sequel[:abc][:def], 'hello')).sql.must_equal "SELECT test(\"abc\".\"def\", 'hello') FROM \"test\""
      @d.select(Sequel.function(:test, Sequel[:abc][:def], 'hello').as(:x2)).sql.must_equal "SELECT test(\"abc\".\"def\", 'hello') AS \"x2\" FROM \"test\""
      @d.insert_sql(:value => 333).must_match(/\AINSERT INTO "test" \("value"\) VALUES \(333\)( RETURNING NULL)?\z/)
    end
  end

  it "should quote fields correctly when reversing the order if quoting identifiers" do
    check_sqls do
      @d.reverse_order(:name).sql.must_equal 'SELECT * FROM "test" ORDER BY "name" DESC'
      @d.reverse_order(Sequel.desc(:name)).sql.must_equal 'SELECT * FROM "test" ORDER BY "name" ASC'
      @d.reverse_order(:name, Sequel.desc(:test)).sql.must_equal 'SELECT * FROM "test" ORDER BY "name" DESC, "test" ASC'
      @d.reverse_order(Sequel.desc(:name), :test).sql.must_equal 'SELECT * FROM "test" ORDER BY "name" ASC, "test" DESC'
    end
  end

  it "should support regexps" do
    @d.insert(:name => 'abc', :value => 1)
    @d.insert(:name => 'bcd', :value => 2)
    @d.filter(:name => /bc/).count.must_equal 2
    @d.filter(:name => /^bc/).count.must_equal 1
  end

  it "should support NULLS FIRST and NULLS LAST" do
    @d.insert(:name => 'abc')
    @d.insert(:name => 'bcd')
    @d.insert(:name => 'bcd', :value => 2)
    @d.order(Sequel.asc(:value, :nulls=>:first), :name).select_map(:name).must_equal %w[abc bcd bcd]
    @d.order(Sequel.asc(:value, :nulls=>:last), :name).select_map(:name).must_equal %w[bcd abc bcd]
    @d.order(Sequel.asc(:value, :nulls=>:first), :name).reverse.select_map(:name).must_equal %w[bcd bcd abc]
  end

  it "should support selecting from LATERAL functions" do
    @d.from{[generate_series(1,3,1).as(:a), pow(:a, 2).lateral.as(:b)]}.select_map([:a, :b])== [[1, 1], [2, 4], [3, 9]]
  end if DB.server_version >= 90300

  it "should support ordered-set and hypothetical-set aggregate functions" do
    @d.from{generate_series(1,3,1).as(:a)}.select{(a.sql_number % 2).as(:a)}.from_self.get{mode.function.within_group(:a)}.must_equal 1
  end if DB.server_version >= 90400

  it "should support filtered aggregate functions" do
    @d.from{generate_series(1,3,1).as(:a)}.select{(a.sql_number % 2).as(:a)}.from_self.get{count(:a).filter(:a=>1)}.must_equal 2
  end if DB.server_version >= 90400

  it "should support functions with ordinality" do
    @d.from{generate_series(1,10,3).with_ordinality}.select_map([:generate_series, :ordinality]).must_equal [[1, 1], [4, 2], [7, 3], [10, 4]]
  end if DB.server_version >= 90400

  it "#lock should lock tables and yield if a block is given" do
    @d.lock('EXCLUSIVE'){@d.insert(:name=>'a')}
  end

  it "should support exclusion constraints when creating or altering tables" do
    @db.create_table!(:atest){Integer :t; exclude [[Sequel.desc(:t, :nulls=>:last), '=']], :using=>:btree, :where=>proc{t > 0}}
    @db[:atest].insert(1)
    @db[:atest].insert(2)
    proc{@db[:atest].insert(2)}.must_raise(Sequel::Postgres::ExclusionConstraintViolation)

    @db.create_table!(:atest){Integer :t}
    @db.alter_table(:atest){add_exclusion_constraint [[:t, '=']], :using=>:btree, :name=>'atest_ex'}
    @db[:atest].insert(1)
    @db[:atest].insert(2)
    proc{@db[:atest].insert(2)}.must_raise(Sequel::Postgres::ExclusionConstraintViolation)
    @db.alter_table(:atest){drop_constraint 'atest_ex'}
  end if DB.server_version >= 90000
  
  it "should support deferrable exclusion constraints" do
    @db.create_table!(:atest){Integer :t; exclude [[Sequel.desc(:t, :nulls=>:last), '=']], :using=>:btree, :where=>proc{t > 0}, :deferrable => true}
    proc do 
      @db.transaction do
        @db[:atest].insert(2)
        @db[:atest].insert(2)
      end
    end.must_raise(Sequel::Postgres::ExclusionConstraintViolation)
  end if DB.server_version >= 90000

  it "should support Database#error_info for getting info hash on the given error" do
    @db.create_table!(:atest){Integer :t; Integer :t2, :null=>false, :default=>1; constraint :f, :t=>0}
    begin
      @db[:atest].insert(1)
    rescue => e
    end
    e.wont_equal nil
    info = @db.error_info(e)
    info[:schema].must_equal 'public'
    info[:table].must_equal 'atest'
    info[:constraint].must_equal 'f'
    info[:column].must_be_nil
    info[:type].must_be_nil

    begin
      @db[:atest].insert(0, nil)
    rescue => e
    end
    e.wont_equal nil
    info = @db.error_info(e.wrapped_exception)
    info[:schema].must_equal 'public'
    info[:table].must_equal 'atest'
    info[:constraint].must_be_nil
    info[:column].must_equal 't2'
    info[:type].must_be_nil
  end if DB.server_version >= 90300 && uses_pg && Object.const_defined?(:PG) && ::PG.const_defined?(:Constants) && ::PG::Constants.const_defined?(:PG_DIAG_SCHEMA_NAME)

  it "should support Database#do for executing anonymous code blocks" do
    @db.drop_table?(:btest)
    @db.do "BEGIN EXECUTE 'CREATE TABLE btest (a INTEGER)'; EXECUTE 'INSERT INTO btest VALUES (1)'; END"
    @db[:btest].select_map(:a).must_equal [1]

    @db.do "BEGIN EXECUTE 'DROP TABLE btest; CREATE TABLE atest (a INTEGER)'; EXECUTE 'INSERT INTO atest VALUES (1)'; END", :language=>:plpgsql
    @db[:atest].select_map(:a).must_equal [1]
  end if DB.server_version >= 90000

  it "should support adding foreign key constarints that are not yet valid, and validating them later" do
    @db.create_table!(:atest){primary_key :id; Integer :fk}
    @db[:atest].insert(1, 5)
    @db.alter_table(:atest){add_foreign_key [:fk], :atest, :not_valid=>true, :name=>:atest_fk}
    @db[:atest].insert(2, 1)
    proc{@db[:atest].insert(3, 4)}.must_raise(Sequel::ForeignKeyConstraintViolation)

    proc{@db.alter_table(:atest){validate_constraint :atest_fk}}.must_raise(Sequel::ForeignKeyConstraintViolation)
    @db[:atest].where(:id=>1).update(:fk=>2)
    @db.alter_table(:atest){validate_constraint :atest_fk}
    @db.alter_table(:atest){validate_constraint :atest_fk}
  end if DB.server_version >= 90200

  it "should support adding check constarints that are not yet valid, and validating them later" do
    @db.create_table!(:atest){Integer :a}
    @db[:atest].insert(5)
    @db.alter_table(:atest){add_constraint({:name=>:atest_check, :not_valid=>true}){a >= 10}}
    @db[:atest].insert(10)
    proc{@db[:atest].insert(6)}.must_raise(Sequel::CheckConstraintViolation)

    proc{@db.alter_table(:atest){validate_constraint :atest_check}}.must_raise(Sequel::CheckConstraintViolation, Sequel::DatabaseError)
    @db[:atest].where{a < 10}.update(:a=>Sequel.+(:a, 10))
    @db.alter_table(:atest){validate_constraint :atest_check}
    @db.alter_table(:atest){validate_constraint :atest_check}
  end if DB.server_version >= 90200

  it "should support :using when altering a column's type" do
    @db.create_table!(:atest){Integer :t}
    @db[:atest].insert(1262304000)
    @db.alter_table(:atest){set_column_type :t, Time, :using=>Sequel.cast('epoch', Time) + Sequel.cast('1 second', :interval) * :t}
    @db[:atest].get(Sequel.extract(:year, :t)).must_equal 2010
  end

  it "should support :using with a string when altering a column's type" do
    @db.create_table!(:atest){Integer :t}
    @db[:atest].insert(1262304000)
    @db.alter_table(:atest){set_column_type :t, Time, :using=>"'epoch'::timestamp + '1 second'::interval * t"}
    @db[:atest].get(Sequel.extract(:year, :t)).must_equal 2010
  end

  it "should be able to parse the default value for an interval type" do
    @db.create_table!(:atest){interval :t, :default=>'1 week'}
    @db.schema(:atest).first.last[:ruby_default].must_equal '7 days'
  end

  it "should have #transaction support various types of synchronous options" do
    @db.transaction(:synchronous=>:on){}
    @db.transaction(:synchronous=>true){}
    @db.transaction(:synchronous=>:off){}
    @db.transaction(:synchronous=>false){}
    @db.sqls.grep(/synchronous/).must_equal ["SET LOCAL synchronous_commit = on", "SET LOCAL synchronous_commit = on", "SET LOCAL synchronous_commit = off", "SET LOCAL synchronous_commit = off"]

    @db.sqls.clear
    @db.transaction(:synchronous=>nil){}
    check_sqls do
      @db.sqls.must_equal ['BEGIN', 'COMMIT']
    end

    if @db.server_version >= 90100
      @db.sqls.clear
      @db.transaction(:synchronous=>:local){}
      check_sqls do
        @db.sqls.grep(/synchronous/).must_equal ["SET LOCAL synchronous_commit = local"]
      end

      if @db.server_version >= 90200
        @db.sqls.clear
        @db.transaction(:synchronous=>:remote_write){}
        check_sqls do
          @db.sqls.grep(/synchronous/).must_equal ["SET LOCAL synchronous_commit = remote_write"]
        end
      end
    end
  end

  it "should have #transaction support read only transactions" do
    @db.transaction(:read_only=>true){}
    @db.transaction(:read_only=>false){}
    @db.transaction(:isolation=>:serializable, :read_only=>true){}
    @db.transaction(:isolation=>:serializable, :read_only=>false){}
    @db.sqls.grep(/READ/).must_equal ["SET TRANSACTION READ ONLY", "SET TRANSACTION READ WRITE", "SET TRANSACTION ISOLATION LEVEL SERIALIZABLE READ ONLY", "SET TRANSACTION ISOLATION LEVEL SERIALIZABLE READ WRITE"]
  end

  it "should have #transaction support deferrable transactions" do
    @db.transaction(:deferrable=>true){}
    @db.transaction(:deferrable=>false){}
    @db.transaction(:deferrable=>true, :read_only=>true){}
    @db.transaction(:deferrable=>false, :read_only=>false){}
    @db.transaction(:isolation=>:serializable, :deferrable=>true, :read_only=>true){}
    @db.transaction(:isolation=>:serializable, :deferrable=>false, :read_only=>false){}
    @db.sqls.grep(/DEF/).must_equal ["SET TRANSACTION DEFERRABLE", "SET TRANSACTION NOT DEFERRABLE", "SET TRANSACTION READ ONLY DEFERRABLE", "SET TRANSACTION READ WRITE NOT DEFERRABLE",  "SET TRANSACTION ISOLATION LEVEL SERIALIZABLE READ ONLY DEFERRABLE", "SET TRANSACTION ISOLATION LEVEL SERIALIZABLE READ WRITE NOT DEFERRABLE"]
  end if DB.server_version >= 90100

  it "should support creating indexes concurrently" do
    @db.add_index :test, [:name, :value], :concurrently=>true
    check_sqls do
      @db.sqls.must_equal ['CREATE INDEX CONCURRENTLY "test_name_value_index" ON "test" ("name", "value")']
    end
  end

  it "should support dropping indexes only if they already exist" do
    @db.add_index :test, [:name, :value], :name=>'tnv1'
    @db.sqls.clear
    @db.drop_index :test, [:name, :value], :if_exists=>true, :name=>'tnv1'
    check_sqls do
      @db.sqls.must_equal ['DROP INDEX IF EXISTS "tnv1"']
    end
  end

  it "should support CASCADE when dropping indexes" do
    @db.add_index :test, [:name, :value], :name=>'tnv2'
    @db.sqls.clear
    @db.drop_index :test, [:name, :value], :cascade=>true, :name=>'tnv2'
    check_sqls do
      @db.sqls.must_equal ['DROP INDEX "tnv2" CASCADE']
    end
  end

  it "should support dropping indexes concurrently" do
    @db.add_index :test, [:name, :value], :name=>'tnv2'
    @db.sqls.clear
    @db.drop_index :test, [:name, :value], :concurrently=>true, :name=>'tnv2'
    check_sqls do
      @db.sqls.must_equal ['DROP INDEX CONCURRENTLY "tnv2"']
    end
  end if DB.server_version >= 90200

  it "#lock should lock table if inside a transaction" do
    @db.transaction{@d.lock('EXCLUSIVE'); @d.insert(:name=>'a')}
  end

  it "#lock should return nil" do
    @d.lock('EXCLUSIVE'){@d.insert(:name=>'a')}.must_be_nil
    @db.transaction{@d.lock('EXCLUSIVE').must_be_nil; @d.insert(:name=>'a')}
  end

  it "should raise an error if attempting to update a joined dataset with a single FROM table" do
    proc{@db[:test].join(:test, [:name]).update(:name=>'a')}.must_raise(Sequel::Error, 'Need multiple FROM tables if updating/deleting a dataset with JOINs')
  end

  it "should truncate with options" do
    @d.insert( :name => 'abc', :value => 1)
    @d.count.must_equal 1
    @d.truncate(:cascade => true)
    @d.count.must_equal 0
    if @d.db.server_version > 80400
      @d.insert( :name => 'abc', :value => 1)
      @d.truncate(:cascade => true, :only=>true, :restart=>true)
      @d.count.must_equal 0
    end
  end

  it "should truncate multiple tables at once" do
    tables = [:test, :test]
    tables.each{|t| @d.from(t).insert}
    @d.from(:test, :test).truncate
    tables.each{|t| @d.from(t).count.must_equal 0}
  end
end

describe "Dataset#distinct" do
  before do
    @db = DB
    @db.create_table!(:a) do
      Integer :a
      Integer :b
    end
    @ds = @db[:a]
  end
  after do
    @db.drop_table?(:a)
  end

  it "#distinct with arguments should return results distinct on those arguments" do
    @ds.insert(20, 10)
    @ds.insert(30, 10)
    @ds.order(:b, :a).distinct.map(:a).must_equal [20, 30]
    @ds.order(:b, Sequel.desc(:a)).distinct.map(:a).must_equal [30, 20]
    @ds.order(:b, :a).distinct(:b).map(:a).must_equal [20]
    @ds.order(:b, Sequel.desc(:a)).distinct(:b).map(:a).must_equal [30]
  end
end

if DB.pool.respond_to?(:max_size) and DB.pool.max_size > 1
  describe "Dataset#for_update support" do
    before do
      @db = DB.create_table!(:items) do
        primary_key :id
        Integer :number
        String :name
      end
      @ds = DB[:items]
    end
    after do
      DB.drop_table?(:items)
      DB.disconnect
    end

    it "should handle FOR UPDATE" do
      @ds.insert(:number=>20)
      c, t = nil, nil
      q = Queue.new
      DB.transaction do
        @ds.for_update.first(:id=>1)
        t = Thread.new do
          DB.transaction do
            q.push nil
            @ds.filter(:id=>1).update(:name=>'Jim')
            c = @ds.first(:id=>1)
            q.push nil
          end
        end
        q.pop
        @ds.filter(:id=>1).update(:number=>30)
      end
      q.pop
      t.join
      c.must_equal(:id=>1, :number=>30, :name=>'Jim')
    end

    it "should handle FOR SHARE" do
      @ds.insert(:number=>20)
      c, t = nil
      q = Queue.new
      DB.transaction do
        @ds.for_share.first(:id=>1)
        t = Thread.new do
          DB.transaction do
            c = @ds.for_share.filter(:id=>1).first
            q.push nil
          end
        end
        q.pop
        @ds.filter(:id=>1).update(:name=>'Jim')
        c.must_equal(:id=>1, :number=>20, :name=>nil)
      end
      t.join
    end
  end
end

describe "A PostgreSQL dataset with a timestamp field" do
  before(:all) do
    @db = DB
    @db.create_table! :test3 do
      Date :date
      DateTime :time
    end
    @d = @db[:test3]
  end
  before do
    @d.delete
  end
  after do
    @db.convert_infinite_timestamps = false if @db.adapter_scheme == :postgres
  end
  after(:all) do
    @db.drop_table?(:test3)
  end

  cspecify "should store milliseconds in time fields for Time objects", [:do], [:swift] do
    t = Time.now
    @d.insert(:time=>t)
    t2 = @d.get(:time)
    @d.literal(t2).must_equal @d.literal(t)
    t2.strftime('%Y-%m-%d %H:%M:%S').must_equal t.strftime('%Y-%m-%d %H:%M:%S')
    (t2.is_a?(Time) ? t2.usec : t2.strftime('%N').to_i/1000).must_equal t.usec
  end

  cspecify "should store milliseconds in time fields for DateTime objects", [:do], [:swift] do
    t = DateTime.now
    @d.insert(:time=>t)
    t2 = @d.get(:time)
    @d.literal(t2).must_equal @d.literal(t)
    t2.strftime('%Y-%m-%d %H:%M:%S').must_equal t.strftime('%Y-%m-%d %H:%M:%S')
    (t2.is_a?(Time) ? t2.usec : t2.strftime('%N').to_i/1000).must_equal t.strftime('%N').to_i/1000
  end

  if DB.adapter_scheme == :postgres
    it "should handle infinite timestamps if convert_infinite_timestamps is set" do
      @d.insert(:time=>Sequel.cast('infinity', DateTime))
      @db.convert_infinite_timestamps = :nil
      @db[:test3].get(:time).must_be_nil
      @db.convert_infinite_timestamps = :string
      @db[:test3].get(:time).must_equal 'infinity'
      @db.convert_infinite_timestamps = :float
      @db[:test3].get(:time).must_equal 1.0/0.0
      @db.convert_infinite_timestamps = 'nil'
      @db[:test3].get(:time).must_be_nil
      @db.convert_infinite_timestamps = 'string'
      @db[:test3].get(:time).must_equal 'infinity'
      @db.convert_infinite_timestamps = 'float'
      @db[:test3].get(:time).must_equal 1.0/0.0
      @db.convert_infinite_timestamps = 't'
      @db[:test3].get(:time).must_equal 1.0/0.0
      @db.convert_infinite_timestamps = 'f'
      if RUBY_VERSION >= '1.9'
        proc{@db[:test3].get(:time)}.must_raise ArgumentError, Sequel::InvalidValue
        @db.convert_infinite_timestamps = nil
        proc{@db[:test3].get(:time)}.must_raise ArgumentError, Sequel::InvalidValue
        @db.convert_infinite_timestamps = false
        proc{@db[:test3].get(:time)}.must_raise ArgumentError, Sequel::InvalidValue
      end

      @d.update(:time=>Sequel.cast('-infinity', DateTime))
      @db.convert_infinite_timestamps = :nil
      @db[:test3].get(:time).must_be_nil
      @db.convert_infinite_timestamps = :string
      @db[:test3].get(:time).must_equal '-infinity'
      @db.convert_infinite_timestamps = :float
      @db[:test3].get(:time).must_equal(-1.0/0.0)
    end

    it "should handle conversions from infinite strings/floats in models" do
      c = Class.new(Sequel::Model(:test3))
      @db.convert_infinite_timestamps = :float
      c.new(:time=>'infinity').time.must_equal 'infinity'
      c.new(:time=>'-infinity').time.must_equal '-infinity'
      c.new(:time=>1.0/0.0).time.must_equal 1.0/0.0
      c.new(:time=>-1.0/0.0).time.must_equal(-1.0/0.0)
    end

    it "should handle infinite dates if convert_infinite_timestamps is set" do
      @d.insert(:date=>Sequel.cast('infinity', Date))
      @db.convert_infinite_timestamps = :nil
      @db[:test3].get(:date).must_be_nil
      @db.convert_infinite_timestamps = :string
      @db[:test3].get(:date).must_equal 'infinity'
      @db.convert_infinite_timestamps = :float
      @db[:test3].get(:date).must_equal 1.0/0.0

      @d.update(:date=>Sequel.cast('-infinity', :timestamp))
      @db.convert_infinite_timestamps = :nil
      @db[:test3].get(:date).must_be_nil
      @db.convert_infinite_timestamps = :string
      @db[:test3].get(:date).must_equal '-infinity'
      @db.convert_infinite_timestamps = :float
      @db[:test3].get(:date).must_equal(-1.0/0.0)
    end

    it "should handle conversions from infinite strings/floats in models" do
      c = Class.new(Sequel::Model(:test3))
      @db.convert_infinite_timestamps = :float
      c.new(:date=>'infinity').date.must_equal 'infinity'
      c.new(:date=>'-infinity').date.must_equal '-infinity'
      c.new(:date=>1.0/0.0).date.must_equal 1.0/0.0
      c.new(:date=>-1.0/0.0).date.must_equal(-1.0/0.0)
    end
  end

  it "explain and analyze should not raise errors" do
    @d = DB[:test3]
    @d.explain
    @d.analyze
  end

  it "#locks should be a dataset returning database locks " do
    @db.locks.must_be_kind_of(Sequel::Dataset)
    @db.locks.all.must_be_kind_of(Array)
  end
end

describe "A PostgreSQL database" do
  before do
    @db = DB
    @db.create_table! :test2 do
      text :name
      integer :value
    end
  end
  after do
    @db.drop_table?(:test2)
  end

  it "should support column operations" do
    @db.create_table!(:test2){text :name; integer :value}
    @db[:test2].insert({})
    @db[:test2].columns.must_equal [:name, :value]

    @db.add_column :test2, :xyz, :text, :default => '000'
    @db[:test2].columns.must_equal [:name, :value, :xyz]
    @db[:test2].insert(:name => 'mmm', :value => 111)
    @db[:test2].first[:xyz].must_equal '000'

    @db[:test2].columns.must_equal [:name, :value, :xyz]
    @db.drop_column :test2, :xyz

    @db[:test2].columns.must_equal [:name, :value]

    @db[:test2].delete
    @db.add_column :test2, :xyz, :text, :default => '000'
    @db[:test2].insert(:name => 'mmm', :value => 111, :xyz => 'qqqq')

    @db[:test2].columns.must_equal [:name, :value, :xyz]
    @db.rename_column :test2, :xyz, :zyx
    @db[:test2].columns.must_equal [:name, :value, :zyx]
    @db[:test2].first[:zyx].must_equal 'qqqq'

    @db.add_column :test2, :xyz, :float
    @db[:test2].delete
    @db[:test2].insert(:name => 'mmm', :value => 111, :xyz => 56.78)
    @db.set_column_type :test2, :xyz, :integer

    @db[:test2].first[:xyz].must_equal 57
  end
end

describe "A PostgreSQL database" do
  before do
    @db = DB
    @db.drop_table?(:posts)
    @db.sqls.clear
  end
  after do
    @db.drop_table?(:posts)
  end

  it "should support resetting the primary key sequence" do
    @db.create_table(:posts){primary_key :a}
    @db[:posts].insert(:a=>20).must_equal 20
    @db[:posts].insert.must_equal 1
    @db[:posts].insert.must_equal 2
    @db[:posts].insert(:a=>10).must_equal 10
    @db.reset_primary_key_sequence(:posts).must_equal 21
    @db[:posts].insert.must_equal 21
    @db[:posts].order(:a).map(:a).must_equal [1, 2, 10, 20, 21]
  end
    
  it "should support specifying Integer/Bignum types in primary keys and have them be auto incrementing" do
    @db.create_table(:posts){primary_key :a, :type=>Integer}
    @db[:posts].insert.must_equal 1
    @db[:posts].insert.must_equal 2
    @db.create_table!(:posts){primary_key :a, :type=>:Bignum}
    @db[:posts].insert.must_equal 1
    @db[:posts].insert.must_equal 2
  end

  it "should not raise an error if attempting to resetting the primary key sequence for a table without a primary key" do
    @db.create_table(:posts){Integer :a}
    @db.reset_primary_key_sequence(:posts).must_be_nil
  end

  it "should support opclass specification" do
    @db.create_table(:posts){text :title; text :body; integer :user_id; index(:user_id, :opclass => :int4_ops, :type => :btree)}
    check_sqls do
      @db.sqls.must_equal [
      'CREATE TABLE "posts" ("title" text, "body" text, "user_id" integer)',
      'CREATE INDEX "posts_user_id_index" ON "posts" USING btree ("user_id" int4_ops)'
      ]
    end
  end

  it "should support fulltext indexes and searching" do
    @db.create_table(:posts){text :title; text :body; full_text_index [:title, :body]; full_text_index :title, :language => 'french', :index_type=>:gist}

    @db[:posts].insert(:title=>'ruby rails', :body=>'yowsa')
    @db[:posts].insert(:title=>'sequel', :body=>'ruby')
    @db[:posts].insert(:title=>'ruby scooby', :body=>'x')

    @db[:posts].full_text_search(:title, 'rails').all.must_equal [{:title=>'ruby rails', :body=>'yowsa'}]
    @db[:posts].full_text_search(:title, 'rails', :headline=>true).all.must_equal [{:title=>'ruby rails', :body=>'yowsa', :headline=>'ruby <b>rails</b>'}]
    @db[:posts].full_text_search([:title, :body], ['yowsa', 'rails']).all.must_equal [:title=>'ruby rails', :body=>'yowsa']
    @db[:posts].full_text_search(:title, 'scooby', :language => 'french').all.must_equal [{:title=>'ruby scooby', :body=>'x'}]

    @db[:posts].full_text_search(:title, :$n).call(:select, :n=>'rails').must_equal [{:title=>'ruby rails', :body=>'yowsa'}]
    @db[:posts].full_text_search(:title, :$n).prepare(:select, :fts_select).call(:n=>'rails').must_equal [{:title=>'ruby rails', :body=>'yowsa'}]

    @db[:posts].insert(:title=>'jruby rubinius ruby maglev mri iron')
    @db[:posts].insert(:title=>'ruby jruby maglev mri rubinius iron')
    @db[:posts].full_text_search(:title, 'rubinius ruby', :phrase=>true).select_order_map(:title).must_equal ['jruby rubinius ruby maglev mri iron']
    @db[:posts].full_text_search(:title, 'jruby maglev', :phrase=>true).select_order_map(:title).must_equal ['ruby jruby maglev mri rubinius iron']
    @db[:posts].full_text_search(:title, 'rubinius ruby', :plain=>true).select_order_map(:title).must_equal ['jruby rubinius ruby maglev mri iron', 'ruby jruby maglev mri rubinius iron']
    @db[:posts].full_text_search(:title, 'jruby maglev', :plain=>true).select_order_map(:title).must_equal ['jruby rubinius ruby maglev mri iron', 'ruby jruby maglev mri rubinius iron']

    if DB.server_version >= 90600
      @db[:posts].full_text_search(:title, 'rubinius ruby', :to_tsquery=>:phrase).select_order_map(:title).must_equal ['jruby rubinius ruby maglev mri iron']
      @db[:posts].full_text_search(:title, 'jruby maglev', :to_tsquery=>:phrase).select_order_map(:title).must_equal ['ruby jruby maglev mri rubinius iron']
    end

    @db[:posts].full_text_search(Sequel.function(:to_tsvector, 'simple', :title), 'rails', :tsvector=>true).all.must_equal [{:title=>'ruby rails', :body=>'yowsa'}]
    @db[:posts].full_text_search(:title, Sequel.function(:to_tsquery, 'simple', 'rails'), :tsquery=>true).all.must_equal [{:title=>'ruby rails', :body=>'yowsa'}]
    proc{@db[:posts].full_text_search(Sequel.function(:to_tsvector, 'simple', :title), 'rubinius ruby', :tsvector=>true, :phrase=>true)}.must_raise(Sequel::Error)
    proc{@db[:posts].full_text_search(:title, Sequel.function(:to_tsquery, 'simple', 'rails'), :tsquery=>true, :phrase=>true)}.must_raise(Sequel::Error)

    @db[:posts].delete
    t1 = "bork " * 1000 + "ruby sequel"
    t2 = "ruby sequel " * 1000
    @db[:posts].insert(:title=>t1)
    @db[:posts].insert(:title=>t2)
    @db[:posts].full_text_search(:title, 'ruby & sequel', :rank=>true).select_map(:title).must_equal [t2, t1]
  end if DB.server_version >= 80300

  it "should support spatial indexes" do
    @db.create_table(:posts){box :geom; spatial_index [:geom]}
    check_sqls do
      @db.sqls.must_equal [
        'CREATE TABLE "posts" ("geom" box)',
        'CREATE INDEX "posts_geom_index" ON "posts" USING gist ("geom")'
      ]
    end
  end

  it "should support indexes with index type" do
    @db.create_table(:posts){point :p; index :p, :type => 'gist'}
    check_sqls do
      @db.sqls.must_equal [
        'CREATE TABLE "posts" ("p" point)',
        'CREATE INDEX "posts_p_index" ON "posts" USING gist ("p")'
      ]
    end
  end

  it "should support unique indexes with index type" do
    @db.create_table(:posts){varchar :title, :size => 5; index :title, :type => 'btree', :unique => true}
    check_sqls do
      @db.sqls.must_equal [
        'CREATE TABLE "posts" ("title" varchar(5))',
        'CREATE UNIQUE INDEX "posts_title_index" ON "posts" USING btree ("title")'
      ]
    end
  end

  it "should support partial indexes" do
    @db.create_table(:posts){varchar :title, :size => 5; index :title, :where => {:title => '5'}}
    check_sqls do
      @db.sqls.must_equal [
        'CREATE TABLE "posts" ("title" varchar(5))',
        'CREATE INDEX "posts_title_index" ON "posts" ("title") WHERE ("title" = \'5\')'
      ]
    end
  end

  it "should support identifiers for table names in indicies" do
    @db.create_table(Sequel::SQL::Identifier.new(:posts)){varchar :title, :size => 5; index :title, :where => {:title => '5'}}
    check_sqls do
      @db.sqls.must_equal [
        'CREATE TABLE "posts" ("title" varchar(5))',
        'CREATE INDEX "posts_title_index" ON "posts" ("title") WHERE ("title" = \'5\')'
      ]
    end
  end

  it "should support renaming tables" do
    @db.create_table!(:posts1){primary_key :a}
    @db.rename_table(:posts1, :posts)
  end

  it "should adding a primary key only if it does not already exists" do
    @db.create_table(:posts){Integer :a}
    @db.alter_table(:posts){add_column :b, Integer}
    @db.alter_table(:posts){add_column :b, Integer, :if_not_exists=>true}
    proc{@db.alter_table(:posts){add_column :b, Integer}}.must_raise Sequel::DatabaseError
  end if DB.server_version >= 90600
end

describe "Postgres::Dataset#import" do
  before do
    @db = DB
    @db.create_table!(:test){primary_key :x; Integer :y}
    @db.sqls.clear
    @ds = @db[:test]
  end
  after do
    @db.drop_table?(:test)
  end

  it "#import should a single insert statement" do
    @ds.import([:x, :y], [[1, 2], [3, 4]])
    check_sqls do
      @db.sqls.must_equal ['BEGIN', 'INSERT INTO "test" ("x", "y") VALUES (1, 2), (3, 4)', 'COMMIT']
    end
    @ds.all.must_equal [{:x=>1, :y=>2}, {:x=>3, :y=>4}]
  end

  it "#import should work correctly when returning primary keys" do
    @ds.import([:x, :y], [[1, 2], [3, 4]], :return=>:primary_key).must_equal [1, 3]
    @ds.all.must_equal [{:x=>1, :y=>2}, {:x=>3, :y=>4}]
  end

  it "#import should work correctly when returning primary keys with :slice option" do
    @ds.import([:x, :y], [[1, 2], [3, 4]], :return=>:primary_key, :slice=>1).must_equal [1, 3]
    @ds.all.must_equal [{:x=>1, :y=>2}, {:x=>3, :y=>4}]
  end

  it "#import should work correctly with an arbitrary returning value" do
    @ds.returning(:y, :x).import([:x, :y], [[1, 2], [3, 4]]).must_equal [{:y=>2, :x=>1}, {:y=>4, :x=>3}]
    @ds.all.must_equal [{:x=>1, :y=>2}, {:x=>3, :y=>4}]
  end
end

describe "Postgres::Dataset#insert" do
  before do
    @db = DB
    @db.create_table!(:test5){primary_key :xid; Integer :value}
    @db.sqls.clear
    @ds = @db[:test5]
  end
  after do
    @db.drop_table?(:test5)
  end

  it "should work with static SQL" do
    @ds.with_sql('INSERT INTO test5 (value) VALUES (10)').insert.must_be_nil
    @db['INSERT INTO test5 (value) VALUES (20)'].insert.must_be_nil
    @ds.all.must_equal [{:xid=>1, :value=>10}, {:xid=>2, :value=>20}]
  end

  it "should insert correctly if using a column array and a value array" do
    @ds.insert([:value], [10]).must_equal 1
    @ds.all.must_equal [{:xid=>1, :value=>10}]
  end

  it "should use INSERT RETURNING" do
    @ds.insert(:value=>10).must_equal 1
    check_sqls do
      @db.sqls.last.must_equal 'INSERT INTO "test5" ("value") VALUES (10) RETURNING "xid"'
    end
  end

  it "should have insert_select insert the record and return the inserted record" do
    h = @ds.insert_select(:value=>10)
    h[:value].must_equal 10
    @ds.first(:xid=>h[:xid])[:value].must_equal 10
  end

  it "should have insert_select respect existing returning clause" do
    h = @ds.returning(Sequel[:value].as(:v), Sequel[:xid].as(:x)).insert_select(:value=>10)
    h[:v].must_equal 10
    @ds.first(:xid=>h[:x])[:value].must_equal 10
  end

  it "should have prepared insert_select respect existing returning clause" do
    h = @ds.returning(Sequel[:value].as(:v), Sequel[:xid].as(:x)).prepare(:insert_select, :insert_select, :value=>10).call
    h[:v].must_equal 10
    @ds.first(:xid=>h[:x])[:value].must_equal 10
  end

  it "should correctly return the inserted record's primary key value" do
    value1 = 10
    id1 = @ds.insert(:value=>value1)
    @ds.first(:xid=>id1)[:value].must_equal value1
    value2 = 20
    id2 = @ds.insert(:value=>value2)
    @ds.first(:xid=>id2)[:value].must_equal value2
  end

  it "should return nil if the table has no primary key" do
    @db.create_table!(:test5){String :name; Integer :value}
    @ds.delete
    @ds.insert(:name=>'a').must_be_nil
  end
end

describe "Postgres::Database schema qualified tables" do
  before do
    @db = DB
    @db << "CREATE SCHEMA schema_test"
    @db.instance_variable_set(:@primary_keys, {})
    @db.instance_variable_set(:@primary_key_sequences, {})
  end
  after do
    @db << "DROP SCHEMA schema_test CASCADE"
  end

  it "should be able to create, drop, select and insert into tables in a given schema" do
    @db.create_table(Sequel[:schema_test][:schema_test]){primary_key :i}
    @db[Sequel[:schema_test][:schema_test]].first.must_be_nil
    @db[Sequel[:schema_test][:schema_test]].insert(:i=>1).must_equal 1
    @db[Sequel[:schema_test][:schema_test]].first.must_equal(:i=>1)
    @db.from(Sequel.lit('schema_test.schema_test')).first.must_equal(:i=>1)
    @db.drop_table(Sequel[:schema_test][:schema_test])
    @db.create_table(Sequel.qualify(:schema_test, :schema_test)){integer :i}
    @db[Sequel[:schema_test][:schema_test]].first.must_be_nil
    @db.from(Sequel.lit('schema_test.schema_test')).first.must_be_nil
    @db.drop_table(Sequel.qualify(:schema_test, :schema_test))
  end

  it "#tables should not include tables in a default non-public schema" do
    @db.create_table(Sequel[:schema_test][:schema_test]){integer :i}
    @db.tables(:schema=>:schema_test).must_include(:schema_test)
    @db.tables.wont_include(:pg_am)
    @db.tables.wont_include(:domain_udt_usage)
  end

  it "#tables should return tables in the schema provided by the :schema argument" do
    @db.create_table(Sequel[:schema_test][:schema_test]){integer :i}
    @db.tables(:schema=>:schema_test).must_equal [:schema_test]
  end

  it "#schema should not include columns from tables in a default non-public schema" do
    @db.create_table(Sequel[:schema_test][:domains]){integer :i}
    sch = @db.schema(Sequel[:schema_test][:domains])
    cs = sch.map{|x| x.first}
    cs.must_include(:i)
    cs.wont_include(:data_type)
  end

  it "#schema should only include columns from the table in the given :schema argument" do
    @db.create_table!(:domains){integer :d}
    @db.create_table(Sequel[:schema_test][:domains]){integer :i}
    sch = @db.schema(:domains, :schema=>:schema_test)
    cs = sch.map{|x| x.first}
    cs.must_include(:i)
    cs.wont_include(:d)
    @db.drop_table(:domains)
  end

  it "#schema should not include columns in tables from other domains by default" do
    @db.create_table!(Sequel[:public][:domains]){integer :d}
    @db.create_table(Sequel[:schema_test][:domains]){integer :i}
    begin
      @db.schema(:domains).map{|x| x.first}.must_equal [:d]
      @db.schema(Sequel[:schema_test][:domains]).map{|x| x.first}.must_equal [:i]
    ensure
      @db.drop_table?(Sequel[:public][:domains])
    end
  end

  it "#table_exists? should see if the table is in a given schema" do
    @db.create_table(Sequel[:schema_test][:schema_test]){integer :i}
    @db.table_exists?(Sequel[:schema_test][:schema_test]).must_equal true
  end

  it "should be able to add and drop indexes in a schema" do
    @db.create_table(Sequel[:schema_test][:schema_test]){Integer :i, :index=>true}
    @db.indexes(Sequel[:schema_test][:schema_test]).keys.must_equal [:schema_test_schema_test_i_index]
    @db.drop_index Sequel[:schema_test][:schema_test], :i
    @db.indexes(Sequel[:schema_test][:schema_test]).keys.must_equal []
  end

  it "should be able to get primary keys for tables in a given schema" do
    @db.create_table(Sequel[:schema_test][:schema_test]){primary_key :i}
    @db.primary_key(Sequel[:schema_test][:schema_test]).must_equal 'i'
  end

  it "should be able to get serial sequences for tables in a given schema" do
    @db.create_table(Sequel[:schema_test][:schema_test]){primary_key :i}
    @db.primary_key_sequence(Sequel[:schema_test][:schema_test]).must_equal '"schema_test"."schema_test_i_seq"'
  end

  it "should be able to get serial sequences for tables that have spaces in the name in a given schema" do
    @db.create_table(Sequel[:schema_test][:"schema test"]){primary_key :i}
    @db.primary_key_sequence(Sequel[:schema_test][:"schema test"]).must_equal '"schema_test"."schema test_i_seq"'
  end

  it "should be able to get custom sequences for tables in a given schema" do
    @db << "CREATE SEQUENCE schema_test.kseq"
    @db.create_table(Sequel[:schema_test][:schema_test]){integer :j; primary_key :k, :type=>:integer, :default=>Sequel.lit("nextval('schema_test.kseq'::regclass)")}
    @db.primary_key_sequence(Sequel[:schema_test][:schema_test]).must_equal '"schema_test".kseq'
  end

  it "should be able to get custom sequences for tables that have spaces in the name in a given schema" do
    @db << "CREATE SEQUENCE schema_test.\"ks eq\""
    @db.create_table(Sequel[:schema_test][:"schema test"]){integer :j; primary_key :k, :type=>:integer, :default=>Sequel.lit("nextval('schema_test.\"ks eq\"'::regclass)")}
    @db.primary_key_sequence(Sequel[:schema_test][:"schema test"]).must_equal '"schema_test"."ks eq"'
  end

  it "should handle schema introspection cases with tables with same name in multiple schemas" do
    begin
      @db.create_table(Sequel[:schema_test][:schema_test]) do
        primary_key :id
        foreign_key :i, Sequel[:schema_test][:schema_test], :index=>{:name=>:schema_test_sti}
      end
      @db.create_table!(Sequel[:public][:schema_test]) do
        primary_key :id
        foreign_key :j, Sequel[:public][:schema_test], :index=>{:name=>:public_test_sti}
      end

      h = @db.schema(:schema_test)
      h.length.must_equal 2
      h.last.first.must_equal :j

      @db.indexes(:schema_test).must_equal(:public_test_sti=>{:unique=>false, :columns=>[:j], :deferrable=>nil})
      @db.foreign_key_list(:schema_test).must_equal [{:on_update=>:no_action, :columns=>[:j], :deferrable=>false, :key=>[:id], :table=>:schema_test, :on_delete=>:no_action, :name=>:schema_test_j_fkey}]
    ensure
      @db.drop_table?(Sequel[:public][:schema_test])
    end
  end
end

describe "Postgres::Database schema qualified tables and eager graphing" do
  before(:all) do
    @db = DB
    @db.run "DROP SCHEMA s CASCADE" rescue nil
    @db.run "CREATE SCHEMA s"

    @db.create_table(Sequel[:s][:bands]){primary_key :id; String :name}
    @db.create_table(Sequel[:s][:albums]){primary_key :id; String :name; foreign_key :band_id, Sequel[:s][:bands]}
    @db.create_table(Sequel[:s][:tracks]){primary_key :id; String :name; foreign_key :album_id, Sequel[:s][:albums]}
    @db.create_table(Sequel[:s][:members]){primary_key :id; String :name; foreign_key :band_id, Sequel[:s][:bands]}

    @Band = Class.new(Sequel::Model(Sequel[:s][:bands]))
    @Album = Class.new(Sequel::Model(Sequel[:s][:albums]))
    @Track = Class.new(Sequel::Model(Sequel[:s][:tracks]))
    @Member = Class.new(Sequel::Model(Sequel[:s][:members]))
    def @Band.name; :Band; end
    def @Album.name; :Album; end
    def @Track.name; :Track; end
    def @Member.name; :Member; end

    @Band.one_to_many :albums, :class=>@Album, :order=>:name
    @Band.one_to_many :members, :class=>@Member, :order=>:name
    @Album.many_to_one :band, :class=>@Band, :order=>:name
    @Album.one_to_many :tracks, :class=>@Track, :order=>:name
    @Track.many_to_one :album, :class=>@Album, :order=>:name
    @Member.many_to_one :band, :class=>@Band, :order=>:name

    @Member.many_to_many :members, :class=>@Member, :join_table=>Sequel[:s][:bands], :right_key=>:id, :left_key=>:id, :left_primary_key=>:band_id, :right_primary_key=>:band_id, :order=>:name
    @Band.many_to_many :tracks, :class=>@Track, :join_table=>Sequel[:s][:albums], :right_key=>:id, :right_primary_key=>:album_id, :order=>:name

    @b1 = @Band.create(:name=>"BM")
    @b2 = @Band.create(:name=>"J")
    @a1 = @Album.create(:name=>"BM1", :band=>@b1)
    @a2 = @Album.create(:name=>"BM2", :band=>@b1)
    @a3 = @Album.create(:name=>"GH", :band=>@b2)
    @a4 = @Album.create(:name=>"GHL", :band=>@b2)
    @t1 = @Track.create(:name=>"BM1-1", :album=>@a1)
    @t2 = @Track.create(:name=>"BM1-2", :album=>@a1)
    @t3 = @Track.create(:name=>"BM2-1", :album=>@a2)
    @t4 = @Track.create(:name=>"BM2-2", :album=>@a2)
    @m1 = @Member.create(:name=>"NU", :band=>@b1)
    @m2 = @Member.create(:name=>"TS", :band=>@b1)
    @m3 = @Member.create(:name=>"NS", :band=>@b2)
    @m4 = @Member.create(:name=>"JC", :band=>@b2)
  end
  after(:all) do
    @db.run "DROP SCHEMA s CASCADE"
  end

  it "should return all eager graphs correctly" do
    bands = @Band.order(Sequel[:bands][:name]).eager_graph(:albums).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.albums}.must_equal [[@a1, @a2], [@a3, @a4]]

    bands = @Band.order(Sequel[:bands][:name]).eager_graph(:albums=>:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.albums}.must_equal [[@a1, @a2], [@a3, @a4]]
    bands.map{|x| x.albums.map{|y| y.tracks}}.must_equal [[[@t1, @t2], [@t3, @t4]], [[], []]]

    bands = @Band.order(Sequel[:bands][:name]).eager_graph({:albums=>:tracks}, :members).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.albums}.must_equal [[@a1, @a2], [@a3, @a4]]
    bands.map{|x| x.albums.map{|y| y.tracks}}.must_equal [[[@t1, @t2], [@t3, @t4]], [[], []]]
    bands.map{|x| x.members}.must_equal [[@m1, @m2], [@m4, @m3]]
  end

  it "should have eager graphs work with previous joins" do
    bands = @Band.order(Sequel[:bands][:name]).select_all(Sequel[:s][:bands]).join(Sequel[:s][:members], :band_id=>:id).from_self(:alias=>:bands0).eager_graph(:albums=>:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.albums}.must_equal [[@a1, @a2], [@a3, @a4]]
    bands.map{|x| x.albums.map{|y| y.tracks}}.must_equal [[[@t1, @t2], [@t3, @t4]], [[], []]]
  end

  it "should have eager graphs work with joins with the same tables" do
    bands = @Band.order(Sequel[:bands][:name]).select_all(Sequel[:s][:bands]).join(Sequel[:s][:members], :band_id=>:id).eager_graph({:albums=>:tracks}, :members).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.albums}.must_equal [[@a1, @a2], [@a3, @a4]]
    bands.map{|x| x.albums.map{|y| y.tracks}}.must_equal [[[@t1, @t2], [@t3, @t4]], [[], []]]
    bands.map{|x| x.members}.must_equal [[@m1, @m2], [@m4, @m3]]
  end

  it "should have eager graphs work with self referential associations" do
    bands = @Band.order(Sequel[:bands][:name]).eager_graph(:tracks=>{:album=>:band}).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.tracks}.must_equal [[@t1, @t2, @t3, @t4], []]
    bands.map{|x| x.tracks.map{|y| y.album}}.must_equal [[@a1, @a1, @a2, @a2], []]
    bands.map{|x| x.tracks.map{|y| y.album.band}}.must_equal [[@b1, @b1, @b1, @b1], []]

    members = @Member.order(Sequel[:members][:name]).eager_graph(:members).all
    members.must_equal [@m4, @m3, @m1, @m2]
    members.map{|x| x.members}.must_equal [[@m4, @m3], [@m4, @m3], [@m1, @m2], [@m1, @m2]]

    members = @Member.order(Sequel[:members][:name]).eager_graph(:band, :members=>:band).all
    members.must_equal [@m4, @m3, @m1, @m2]
    members.map{|x| x.band}.must_equal [@b2, @b2, @b1, @b1]
    members.map{|x| x.members}.must_equal [[@m4, @m3], [@m4, @m3], [@m1, @m2], [@m1, @m2]]
    members.map{|x| x.members.map{|y| y.band}}.must_equal [[@b2, @b2], [@b2, @b2], [@b1, @b1], [@b1, @b1]]
  end

  it "should have eager graphs work with a from_self dataset" do
    bands = @Band.order(Sequel[:bands][:name]).from_self.eager_graph(:tracks=>{:album=>:band}).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.tracks}.must_equal [[@t1, @t2, @t3, @t4], []]
    bands.map{|x| x.tracks.map{|y| y.album}}.must_equal [[@a1, @a1, @a2, @a2], []]
    bands.map{|x| x.tracks.map{|y| y.album.band}}.must_equal [[@b1, @b1, @b1, @b1], []]
  end

  it "should have eager graphs work with different types of aliased from tables" do
    bands = @Band.order(Sequel[:tracks][:name]).from(Sequel[:s][:bands].as(:tracks)).eager_graph(:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.tracks}.must_equal [[@t1, @t2, @t3, @t4], []]

    bands = @Band.order(Sequel[:tracks][:name]).from(Sequel.expr(Sequel[:s][:bands]).as(:tracks)).eager_graph(:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.tracks}.must_equal [[@t1, @t2, @t3, @t4], []]

    bands = @Band.order(Sequel[:tracks][:name]).from(Sequel.expr(Sequel[:s][:bands]).as(Sequel.identifier(:tracks))).eager_graph(:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.tracks}.must_equal [[@t1, @t2, @t3, @t4], []]

    bands = @Band.order(Sequel[:tracks][:name]).from(Sequel.expr(Sequel[:s][:bands]).as('tracks')).eager_graph(:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.tracks}.must_equal [[@t1, @t2, @t3, @t4], []]
  end

  it "should have eager graphs work with join tables with aliases" do
    bands = @Band.order(Sequel[:bands][:name]).eager_graph(:members).join(Sequel[:s][:albums].as(:tracks), :band_id=>Sequel.qualify(Sequel[:s][:bands], :id)).eager_graph(:albums=>:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.albums}.must_equal [[@a1, @a2], [@a3, @a4]]
    bands.map{|x| x.members}.must_equal [[@m1, @m2], [@m4, @m3]]

    bands = @Band.order(Sequel[:bands][:name]).eager_graph(:members).join(Sequel.as(Sequel[:s][:albums], :tracks), :band_id=>Sequel.qualify(Sequel[:s][:bands], :id)).eager_graph(:albums=>:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.albums}.must_equal [[@a1, @a2], [@a3, @a4]]
    bands.map{|x| x.members}.must_equal [[@m1, @m2], [@m4, @m3]]

    bands = @Band.order(Sequel[:bands][:name]).eager_graph(:members).join(Sequel.as(Sequel[:s][:albums], 'tracks'), :band_id=>Sequel.qualify(Sequel[:s][:bands], :id)).eager_graph(:albums=>:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.albums}.must_equal [[@a1, @a2], [@a3, @a4]]
    bands.map{|x| x.members}.must_equal [[@m1, @m2], [@m4, @m3]]

    bands = @Band.order(Sequel[:bands][:name]).eager_graph(:members).join(Sequel.as(Sequel[:s][:albums], Sequel.identifier(:tracks)), :band_id=>Sequel.qualify(Sequel[:s][:bands], :id)).eager_graph(:albums=>:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.albums}.must_equal [[@a1, @a2], [@a3, @a4]]
    bands.map{|x| x.members}.must_equal [[@m1, @m2], [@m4, @m3]]

    bands = @Band.order(Sequel[:bands][:name]).eager_graph(:members).join(Sequel[:s][:albums], {:band_id=>Sequel.qualify(Sequel[:s][:bands], :id)}, :table_alias=>:tracks).eager_graph(:albums=>:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.albums}.must_equal [[@a1, @a2], [@a3, @a4]]
    bands.map{|x| x.members}.must_equal [[@m1, @m2], [@m4, @m3]]

    bands = @Band.order(Sequel[:bands][:name]).eager_graph(:members).join(Sequel[:s][:albums], {:band_id=>Sequel.qualify(Sequel[:s][:bands], :id)}, :table_alias=>'tracks').eager_graph(:albums=>:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.albums}.must_equal [[@a1, @a2], [@a3, @a4]]
    bands.map{|x| x.members}.must_equal [[@m1, @m2], [@m4, @m3]]

    bands = @Band.order(Sequel[:bands][:name]).eager_graph(:members).join(Sequel[:s][:albums], {:band_id=>Sequel.qualify(Sequel[:s][:bands], :id)}, :table_alias=>Sequel.identifier(:tracks)).eager_graph(:albums=>:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.albums}.must_equal [[@a1, @a2], [@a3, @a4]]
    bands.map{|x| x.members}.must_equal [[@m1, @m2], [@m4, @m3]]
  end

  it "should have eager graphs work with different types of qualified from tables" do
    bands = @Band.order(Sequel[:bands][:name]).from(Sequel.qualify(:s, :bands)).eager_graph(:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.tracks}.must_equal [[@t1, @t2, @t3, @t4], []]

    bands = @Band.order(Sequel[:bands][:name]).from(Sequel.identifier(:bands).qualify(:s)).eager_graph(:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.tracks}.must_equal [[@t1, @t2, @t3, @t4], []]

    bands = @Band.order(Sequel[:bands][:name]).from(Sequel::SQL::QualifiedIdentifier.new(:s, 'bands')).eager_graph(:tracks).all
    bands.must_equal [@b1, @b2]
    bands.map{|x| x.tracks}.must_equal [[@t1, @t2, @t3, @t4], []]
  end

end

if DB.server_version >= 80300
  describe "PostgreSQL tsearch2" do
    before(:all) do
      DB.create_table! :test6 do
        text :title
        text :body
        full_text_index [:title, :body]
      end
      @ds = DB[:test6]
    end
    after do
      DB[:test6].delete
    end
    after(:all) do
      DB.drop_table?(:test6)
    end

    it "should search by indexed column" do
      record =  {:title => "oopsla conference", :body => "test"}
      @ds.insert(record)
      @ds.full_text_search(:title, "oopsla").all.must_include(record)
    end

    it "should join multiple coumns with spaces to search by last words in row" do
      record = {:title => "multiple words", :body => "are easy to search"}
      @ds.insert(record)
      @ds.full_text_search([:title, :body], "words").all.must_include(record)
    end

    it "should return rows with a NULL in one column if a match in another column" do
      record = {:title => "multiple words", :body =>nil}
      @ds.insert(record)
      @ds.full_text_search([:title, :body], "words").all.must_include(record)
    end
  end
end

if DB.dataset.supports_window_functions?
  describe "Postgres::Dataset named windows" do
    before do
      @db = DB
      @db.create_table!(:i1){Integer :id; Integer :group_id; Integer :amount}
      @ds = @db[:i1].order(:id)
      @ds.insert(:id=>1, :group_id=>1, :amount=>1)
      @ds.insert(:id=>2, :group_id=>1, :amount=>10)
      @ds.insert(:id=>3, :group_id=>1, :amount=>100)
      @ds.insert(:id=>4, :group_id=>2, :amount=>1000)
      @ds.insert(:id=>5, :group_id=>2, :amount=>10000)
      @ds.insert(:id=>6, :group_id=>2, :amount=>100000)
    end
    after do
      @db.drop_table?(:i1)
    end

    it "should give correct results for window functions" do
      @ds.window(:win, :partition=>:group_id, :order=>:id).select(:id){sum(:amount).over(:window=>win)}.all.
        must_equal [{:sum=>1, :id=>1}, {:sum=>11, :id=>2}, {:sum=>111, :id=>3}, {:sum=>1000, :id=>4}, {:sum=>11000, :id=>5}, {:sum=>111000, :id=>6}]
      @ds.window(:win, :partition=>:group_id).select(:id){sum(:amount).over(:window=>win, :order=>id)}.all.
        must_equal [{:sum=>1, :id=>1}, {:sum=>11, :id=>2}, {:sum=>111, :id=>3}, {:sum=>1000, :id=>4}, {:sum=>11000, :id=>5}, {:sum=>111000, :id=>6}]
      @ds.window(:win, {}).select(:id){sum(:amount).over(:window=>:win, :order=>id)}.all.
        must_equal [{:sum=>1, :id=>1}, {:sum=>11, :id=>2}, {:sum=>111, :id=>3}, {:sum=>1111, :id=>4}, {:sum=>11111, :id=>5}, {:sum=>111111, :id=>6}]
      @ds.window(:win, :partition=>:group_id).select(:id){sum(:amount).over(:window=>:win, :order=>id, :frame=>:all)}.all.
        must_equal [{:sum=>111, :id=>1}, {:sum=>111, :id=>2}, {:sum=>111, :id=>3}, {:sum=>111000, :id=>4}, {:sum=>111000, :id=>5}, {:sum=>111000, :id=>6}]
    end
  end
end

describe "Postgres::Database functions, languages, schemas, and triggers" do
  before do
    @d = DB
  end
  after do
    @d.drop_function('tf', :if_exists=>true, :cascade=>true)
    @d.drop_function('tf', :if_exists=>true, :cascade=>true, :args=>%w'integer integer')
    @d.drop_language(:plpgsql, :if_exists=>true, :cascade=>true) if @d.server_version < 90000
    @d.drop_schema(:sequel, :if_exists=>true, :cascade=>true)
    @d.drop_table?(:test)
  end

  it "#create_function and #drop_function should create and drop functions" do
    proc{@d['SELECT tf()'].all}.must_raise(Sequel::DatabaseError)
    args = ['tf', 'SELECT 1', {:returns=>:integer}]
    @d.send(:create_function_sql, *args).must_match(/\A\s*CREATE FUNCTION tf\(\)\s+RETURNS integer\s+LANGUAGE SQL\s+AS 'SELECT 1'\s*\z/)
    @d.create_function(*args)
    @d['SELECT tf()'].all.must_equal [{:tf=>1}]
    @d.send(:drop_function_sql, 'tf').must_equal 'DROP FUNCTION tf()'
    @d.drop_function('tf')
    proc{@d['SELECT tf()'].all}.must_raise(Sequel::DatabaseError)
  end

  it "#create_function and #drop_function should support options" do
    args = ['tf', 'SELECT $1 + $2', {:args=>[[:integer, :a], :integer], :replace=>true, :returns=>:integer, :language=>'SQL', :behavior=>:immutable, :strict=>true, :security_definer=>true, :cost=>2, :set=>{:search_path => 'public'}}]
    @d.send(:create_function_sql,*args).must_match(/\A\s*CREATE OR REPLACE FUNCTION tf\(a integer, integer\)\s+RETURNS integer\s+LANGUAGE SQL\s+IMMUTABLE\s+STRICT\s+SECURITY DEFINER\s+COST 2\s+SET search_path = public\s+AS 'SELECT \$1 \+ \$2'\s*\z/)
    @d.create_function(*args)
    # Make sure replace works
    @d.create_function(*args)
    @d['SELECT tf(1, 2)'].all.must_equal [{:tf=>3}]
    args = ['tf', {:if_exists=>true, :cascade=>true, :args=>[[:integer, :a], :integer]}]
    @d.send(:drop_function_sql,*args).must_equal 'DROP FUNCTION IF EXISTS tf(a integer, integer) CASCADE'
    @d.drop_function(*args)
    # Make sure if exists works
    @d.drop_function(*args)
  end

  it "#create_language and #drop_language should create and drop languages" do
    @d.send(:create_language_sql, :plpgsql).must_equal 'CREATE LANGUAGE plpgsql'
    @d.create_language(:plpgsql, :replace=>true) if @d.server_version < 90000
    proc{@d.create_language(:plpgsql)}.must_raise(Sequel::DatabaseError)
    @d.send(:drop_language_sql, :plpgsql).must_equal 'DROP LANGUAGE plpgsql'
    @d.drop_language(:plpgsql) if @d.server_version < 90000
    proc{@d.drop_language(:plpgsql)}.must_raise(Sequel::DatabaseError) if @d.server_version < 90000
    @d.send(:create_language_sql, :plpgsql, :replace=>true, :trusted=>true, :handler=>:a, :validator=>:b).must_equal(@d.server_version >= 90000 ? 'CREATE OR REPLACE TRUSTED LANGUAGE plpgsql HANDLER a VALIDATOR b' : 'CREATE TRUSTED LANGUAGE plpgsql HANDLER a VALIDATOR b')
    @d.send(:drop_language_sql, :plpgsql, :if_exists=>true, :cascade=>true).must_equal 'DROP LANGUAGE IF EXISTS plpgsql CASCADE'
    # Make sure if exists works
    @d.drop_language(:plpgsql, :if_exists=>true, :cascade=>true) if @d.server_version < 90000
  end

  it "#create_schema and #drop_schema should create and drop schemas" do
    @d.send(:create_schema_sql, :sequel).must_equal 'CREATE SCHEMA "sequel"'
    @d.send(:create_schema_sql, :sequel, :if_not_exists=>true, :owner=>:foo).must_equal 'CREATE SCHEMA IF NOT EXISTS "sequel" AUTHORIZATION "foo"'
    @d.send(:drop_schema_sql, :sequel).must_equal 'DROP SCHEMA "sequel"'
    @d.send(:drop_schema_sql, :sequel, :if_exists=>true, :cascade=>true).must_equal 'DROP SCHEMA IF EXISTS "sequel" CASCADE'
    @d.create_schema(:sequel)
    @d.create_schema(:sequel, :if_not_exists=>true) if @d.server_version >= 90300
    @d.create_table(Sequel[:sequel][:test]){Integer :a}
    @d.drop_schema(:sequel, :if_exists=>true, :cascade=>true)
  end

  it "#create_trigger and #drop_trigger should create and drop triggers" do
    @d.create_language(:plpgsql) if @d.server_version < 90000
    @d.create_function(:tf, 'BEGIN IF NEW.value IS NULL THEN RAISE EXCEPTION \'Blah\'; END IF; RETURN NEW; END;', :language=>:plpgsql, :returns=>:trigger)
    @d.send(:create_trigger_sql, :test, :identity, :tf, :each_row=>true).must_equal 'CREATE TRIGGER identity BEFORE INSERT OR UPDATE OR DELETE ON "test" FOR EACH ROW EXECUTE PROCEDURE tf()'
    @d.create_table(:test){String :name; Integer :value}
    @d.create_trigger(:test, :identity, :tf, :each_row=>true)
    @d[:test].insert(:name=>'a', :value=>1)
    @d[:test].filter(:name=>'a').all.must_equal [{:name=>'a', :value=>1}]
    proc{@d[:test].filter(:name=>'a').update(:value=>nil)}.must_raise(Sequel::DatabaseError)
    @d[:test].filter(:name=>'a').all.must_equal [{:name=>'a', :value=>1}]
    @d[:test].filter(:name=>'a').update(:value=>3)
    @d[:test].filter(:name=>'a').all.must_equal [{:name=>'a', :value=>3}]
    @d.send(:drop_trigger_sql, :test, :identity).must_equal 'DROP TRIGGER identity ON "test"'
    @d.drop_trigger(:test, :identity)
    @d.send(:create_trigger_sql, :test, :identity, :tf, :after=>true, :events=>:insert, :args=>[1, 'a']).must_equal 'CREATE TRIGGER identity AFTER INSERT ON "test" EXECUTE PROCEDURE tf(1, \'a\')'
    @d.send(:drop_trigger_sql, :test, :identity, :if_exists=>true, :cascade=>true).must_equal 'DROP TRIGGER IF EXISTS identity ON "test" CASCADE'
    # Make sure if exists works
    @d.drop_trigger(:test, :identity, :if_exists=>true, :cascade=>true)

    if @d.supports_trigger_conditions?
      @d.send(:create_trigger_sql, :test, :identity, :tf, :each_row=>true, :when=> {Sequel[:new][:name] => 'b'}).must_equal %q{CREATE TRIGGER identity BEFORE INSERT OR UPDATE OR DELETE ON "test" FOR EACH ROW WHEN ("new"."name" = 'b') EXECUTE PROCEDURE tf()}
      @d.create_trigger(:test, :identity, :tf, :each_row=>true, :events => :update, :when=> {Sequel[:new][:name] => 'b'})
      @d[:test].filter(:name=>'a').update(:value=>nil)
      @d[:test].filter(:name=>'a').all.must_equal [{:name=>'a', :value=>nil}]
      proc{@d[:test].filter(:name=>'a').update(:name=>'b')}.must_raise(Sequel::DatabaseError)
      @d[:test].filter(:name=>'a').all.must_equal [{:name=>'a', :value=>nil}]
      @d.drop_trigger(:test, :identity)
    end
  end
end

if DB.adapter_scheme == :postgres
  describe "Postgres::Dataset #use_cursor" do
    before(:all) do
      @db = DB
      @db.create_table!(:test_cursor){Integer :x}
      @db.sqls.clear
      @ds = @db[:test_cursor]
      @db.transaction{1001.times{|i| @ds.insert(i)}}
    end
    after(:all) do
      @db.drop_table?(:test_cursor)
    end

    it "should return the same results as the non-cursor use" do
      @ds.all.must_equal @ds.use_cursor.all
    end

    it "should not swallow errors if closing cursor raises an error" do
      proc do
        @db.synchronize do |c|
          @ds.use_cursor.each do |r|
            @db.run "CLOSE sequel_cursor"
            raise ArgumentError
          end
        end
      end.must_raise(ArgumentError)
    end

    it "should respect the :rows_per_fetch option" do
      @db.sqls.clear
      @ds.use_cursor.all
      check_sqls do
        @db.sqls.length.must_equal 6
        @db.sqls.clear
      end
      @ds.use_cursor(:rows_per_fetch=>100).all
      check_sqls do
        @db.sqls.length.must_equal 15
      end
    end

    it "should respect the :hold=>true option for creating the cursor WITH HOLD and not using a transaction" do
      @ds.use_cursor.each{@db.in_transaction?.must_equal true}
      check_sqls{@db.sqls.any?{|s| s =~ /WITH HOLD/}.must_equal false}
      @ds.use_cursor(:hold=>true).each{@db.in_transaction?.must_equal false}
      check_sqls{@db.sqls.any?{|s| s =~ /WITH HOLD/}.must_equal true}
    end

    it "should support updating individual rows based on a cursor" do
      @db.transaction(:rollback=>:always) do
        @ds.use_cursor(:rows_per_fetch=>1).each do |row|
          @ds.where_current_of.update(:x=>Sequel.*(row[:x], 10))
        end
        @ds.select_order_map(:x).must_equal((0..1000).map{|x| x * 10})
      end
      @ds.select_order_map(:x).must_equal((0..1000).to_a)
    end

    it "should respect the :cursor_name option" do
      one_rows = []
      two_rows = []
      @ds.order(:x).use_cursor(:cursor_name => 'cursor_one').each do |one|
        one_rows << one
        if one[:x] % 1000 == 500 
          two_rows = []
          @ds.order(:x).use_cursor(:cursor_name => 'cursor_two').each do |two|
            two_rows << two
          end
        end
      end
      one_rows.must_equal two_rows
    end

    it "should handle returning inside block" do
      ds = @ds.with_extend do
        def check_return
          use_cursor.each{|r| return}
        end
      end
      ds.check_return
      ds.all.must_equal ds.use_cursor.all
    end
  end

  describe "Database#add_named_conversion_proc" do
    before(:all) do
      @db = DB
      @old_cp = @db.conversion_procs[1013]
      @db.conversion_procs.delete(1013)
      @db.add_named_conversion_proc(:oidvector, &:reverse)
    end
    after(:all) do
      @db.conversion_procs.delete(30)
      @db.conversion_procs[1013] = @old_cp
      @db.drop_table?(:foo)
      @db.drop_enum(:foo_enum) rescue nil
    end

    it "should work for scalar types" do
      @db.create_table!(:foo){oidvector :bar}
      @db[:foo].insert(Sequel.cast('21', :oidvector))
      @db[:foo].get(:bar).must_equal '12'
    end

    it "should work for array types" do
      @db.create_table!(:foo){column :bar, 'oidvector[]'}
      @db[:foo].insert(Sequel.pg_array(['21'], :oidvector))
      @db[:foo].get(:bar).must_equal ['12']
    end

    it "should work with for enums" do
      @db.drop_enum(:foo_enum) rescue nil
      @db.create_enum(:foo_enum, %w(foo bar))
      @db.add_named_conversion_proc(:foo_enum){|string| string.reverse}
      @db.create_table!(:foo){foo_enum :bar}
      @db[:foo].insert(:bar => 'foo')
      @db[:foo].get(:bar).must_equal 'foo'.reverse
    end
  end

  describe "Postgres::PG_NAMED_TYPES" do
    before(:all) do
      deprecated do
        @db = DB
        @cp = @db.conversion_procs.dup
        @db.conversion_procs.delete(1013)
        Sequel::Postgres::PG_NAMED_TYPES[:oidvector] = lambda{|v| v.reverse}
        @db.reset_conversion_procs
        @db.register_array_type('oidvector')
      end
    end
    after(:all) do
      deprecated do
        Sequel::Postgres::PG_NAMED_TYPES.delete(:oidvector)
        @db.conversion_procs.replace(@cp)
        @db.drop_table?(:foo)
        @db.drop_enum(:foo_enum) rescue nil
      end
    end

    deprecated "should look up conversion procs by name" do
      @db.create_table!(:foo){oidvector :bar}
      @db[:foo].insert(Sequel.cast('21', :oidvector))
      @db[:foo].get(:bar).must_equal '12'
    end

    deprecated "should handle array types of named types" do
      @db.create_table!(:foo){column :bar, 'oidvector[]'}
      @db[:foo].insert(Sequel.pg_array(['21'], :oidvector))
      @db[:foo].get(:bar).must_equal ['12']
    end
  end
end

if uses_pg_or_jdbc && DB.server_version >= 90000
  describe "Postgres::Database#copy_into" do
    before(:all) do
      @db = DB
      @db.create_table!(:test_copy){Integer :x; Integer :y}
      @ds = @db[:test_copy].order(:x, :y)
    end
    before do
      @db[:test_copy].delete
    end
    after(:all) do
      @db.drop_table?(:test_copy)
    end

    it "should work with a :data option containing data in PostgreSQL text format" do
      @db.copy_into(:test_copy, :data=>"1\t2\n3\t4\n")
      @ds.select_map([:x, :y]).must_equal [[1, 2], [3, 4]]
    end

    it "should work with :format=>:csv option and :data option containing data in CSV format" do
      @db.copy_into(:test_copy, :format=>:csv, :data=>"1,2\n3,4\n")
      @ds.select_map([:x, :y]).must_equal [[1, 2], [3, 4]]
    end

    it "should respect given :options" do
      @db.copy_into(:test_copy, :options=>"FORMAT csv, HEADER TRUE", :data=>"x,y\n1,2\n3,4\n")
      @ds.select_map([:x, :y]).must_equal [[1, 2], [3, 4]]
    end

    it "should respect given :options options when :format is used" do
      @db.copy_into(:test_copy, :options=>"QUOTE '''', DELIMITER '|'", :format=>:csv, :data=>"'1'|'2'\n'3'|'4'\n")
      @ds.select_map([:x, :y]).must_equal [[1, 2], [3, 4]]
    end

    it "should accept :columns option to online copy the given columns" do
      @db.copy_into(:test_copy, :data=>"1\t2\n3\t4\n", :columns=>[:y, :x])
      @ds.select_map([:x, :y]).must_equal [[2, 1], [4, 3]]
    end

    it "should accept a block and use returned values for the copy in data stream" do
      buf = ["1\t2\n", "3\t4\n"]
      @db.copy_into(:test_copy){buf.shift}
      @ds.select_map([:x, :y]).must_equal [[1, 2], [3, 4]]
    end

    it "should work correctly with a block and :format=>:csv" do
      buf = ["1,2\n", "3,4\n"]
      @db.copy_into(:test_copy, :format=>:csv){buf.shift}
      @ds.select_map([:x, :y]).must_equal [[1, 2], [3, 4]]
    end

    it "should accept an enumerable as the :data option" do
      @db.copy_into(:test_copy, :data=>["1\t2\n", "3\t4\n"])
      @ds.select_map([:x, :y]).must_equal [[1, 2], [3, 4]]
    end

    it "should have an exception, cause a rollback of copied data and still have a usable connection" do
      2.times do
        sent = false
        proc{@db.copy_into(:test_copy){raise ArgumentError if sent; sent = true; "1\t2\n"}}.must_raise(ArgumentError)
        @ds.select_map([:x, :y]).must_equal []
      end
    end

    it "should handle database errors with a rollback of copied data and still have a usable connection" do
      2.times do
        proc{@db.copy_into(:test_copy, :data=>["1\t2\n", "3\ta\n"])}.must_raise(Sequel::DatabaseError)
        @ds.select_map([:x, :y]).must_equal []
      end
    end

    it "should raise an Error if both :data and a block are provided" do
      proc{@db.copy_into(:test_copy, :data=>["1\t2\n", "3\t4\n"]){}}.must_raise(Sequel::Error)
    end

    it "should raise an Error if neither :data or a block are provided" do
      proc{@db.copy_into(:test_copy)}.must_raise(Sequel::Error)
    end
  end

  describe "Postgres::Database#copy_table" do
    before(:all) do
      @db = DB
      @db.create_table!(:test_copy){Integer :x; Integer :y}
      ds = @db[:test_copy]
      ds.insert(1, 2)
      ds.insert(3, 4)
    end
    after(:all) do
      @db.drop_table?(:test_copy)
    end

    it "without a block or options should return a text version of the table as a single string" do
      @db.copy_table(:test_copy).must_equal "1\t2\n3\t4\n"
    end

    it "without a block and with :format=>:csv should return a csv version of the table as a single string" do
      @db.copy_table(:test_copy, :format=>:csv).must_equal "1,2\n3,4\n"
    end

    it "should treat string as SQL code" do
      @db.copy_table('COPY "test_copy" TO STDOUT').must_equal "1\t2\n3\t4\n"
    end

    it "should respect given :options options" do
      @db.copy_table(:test_copy, :options=>"FORMAT csv, HEADER TRUE").must_equal "x,y\n1,2\n3,4\n"
    end

    it "should respect given :options options when :format is used" do
      @db.copy_table(:test_copy, :format=>:csv, :options=>"QUOTE '''', FORCE_QUOTE *").must_equal "'1','2'\n'3','4'\n"
    end

    it "should accept dataset as first argument" do
      @db.copy_table(@db[:test_copy].cross_join(Sequel[:test_copy].as(:tc)).order(Sequel[:test_copy][:x], Sequel[:test_copy][:y], Sequel[:tc][:x], Sequel[:tc][:y])).must_equal "1\t2\t1\t2\n1\t2\t3\t4\n3\t4\t1\t2\n3\t4\t3\t4\n"
    end

    it "with a block and no options should yield each row as a string in text format" do
      buf = []
      @db.copy_table(:test_copy){|b| buf << b}
      buf.must_equal ["1\t2\n", "3\t4\n"]
    end

    it "with a block and :format=>:csv should yield each row as a string in csv format" do
      buf = []
      @db.copy_table(:test_copy, :format=>:csv){|b| buf << b}
      buf.must_equal ["1,2\n", "3,4\n"]
    end

    it "should work fine when using a block that is terminated early with a following copy_table" do
      buf = []
      proc{@db.copy_table(:test_copy, :format=>:csv){|b| buf << b; break}}.must_raise(Sequel::DatabaseDisconnectError)
      buf.must_equal ["1,2\n"]
      buf.clear
      proc{@db.copy_table(:test_copy, :format=>:csv){|b| buf << b; raise ArgumentError}}.must_raise(Sequel::DatabaseDisconnectError)
      buf.must_equal ["1,2\n"]
      buf.clear
      @db.copy_table(:test_copy){|b| buf << b}
      buf.must_equal ["1\t2\n", "3\t4\n"]
    end

    it "should work fine when using a block that is terminated early with a following regular query" do
      buf = []
      proc{@db.copy_table(:test_copy, :format=>:csv){|b| buf << b; break}}.must_raise(Sequel::DatabaseDisconnectError)
      buf.must_equal ["1,2\n"]
      buf.clear
      proc{@db.copy_table(:test_copy, :format=>:csv){|b| buf << b; raise ArgumentError}}.must_raise(Sequel::DatabaseDisconnectError)
      buf.must_equal ["1,2\n"]
      @db[:test_copy].select_order_map(:x).must_equal [1, 3]
    end

    it "should not swallow error raised by block" do
      begin
        @db.copy_table(:test_copy){|b| raise ArgumentError, "foo"}
      rescue => e
      end

      e.must_be_kind_of Sequel::DatabaseDisconnectError
      e.wrapped_exception.must_be_kind_of ArgumentError
      e.message.must_include "foo"
    end

  end
end

if uses_pg && DB.server_version >= 90000
  describe "Postgres::Database LISTEN/NOTIFY" do
    before(:all) do
      @db = DB
    end

    it "should support listen and notify" do
      notify_pid = @db.synchronize{|conn| conn.backend_pid}

      called = false
      @db.listen('foo', :after_listen=>proc{@db.notify('foo')}) do |ev, pid, payload|
        ev.must_equal 'foo'
        pid.must_equal notify_pid
        ['', nil].must_include(payload)
        called = true
      end.must_equal 'foo'
      called.must_equal true

      # Check weird identifier names
      called = false
      @db.listen('FOO bar', :after_listen=>proc{@db.notify('FOO bar')}) do |ev, pid, payload|
        ev.must_equal 'FOO bar'
        pid.must_equal notify_pid
        ['', nil].must_include(payload)
        called = true
      end.must_equal 'FOO bar'
      called.must_equal true

      # Check identifier symbols
      called = false
      @db.listen(:foo, :after_listen=>proc{@db.notify(:foo)}) do |ev, pid, payload|
        ev.must_equal 'foo'
        pid.must_equal notify_pid
        ['', nil].must_include(payload)
        called = true
      end.must_equal 'foo'
      called.must_equal true

      called = false
      @db.listen('foo', :after_listen=>proc{@db.notify('foo', :payload=>'bar')}) do |ev, pid, payload|
        ev.must_equal 'foo'
        pid.must_equal notify_pid
        payload.must_equal 'bar'
        called = true
      end.must_equal 'foo'
      called.must_equal true

      @db.listen('foo', :after_listen=>proc{@db.notify('foo')}).must_equal 'foo'

      called = false
      called2 = false
      i = 0
      @db.listen(['foo', 'bar'], :after_listen=>proc{@db.notify('foo', :payload=>'bar'); @db.notify('bar', :payload=>'foo')}, :loop=>proc{i+=1}) do |ev, pid, payload|
        if !called
          ev.must_equal 'foo'
          pid.must_equal notify_pid
          payload.must_equal 'bar'
          called = true
        else
          ev.must_equal 'bar'
          pid.must_equal notify_pid
          payload.must_equal 'foo'
          called2 = true
          break
        end
      end.must_be_nil
      called.must_equal true
      called2.must_equal true
      i.must_equal 1
    end

    it "should accept a :timeout option in listen" do
      @db.listen('foo2', :timeout=>0.001).must_be_nil
      called = false
      @db.listen('foo2', :timeout=>0.001){|ev, pid, payload| called = true}.must_be_nil
      called.must_equal false
      i = 0
      @db.listen('foo2', :timeout=>0.001, :loop=>proc{i+=1; throw :stop if i > 3}){|ev, pid, payload| called = true}.must_be_nil
      i.must_equal 4

      called = false
      i = 0
      @db.listen('foo2', :timeout=>proc{i+=1; 0.001}){|ev, pid, payload| called = true}.must_be_nil
      called.must_equal false
      i.must_equal 1

	  i = 0
      t = 0
      @db.listen('foo2', :timeout=>proc{t+=1; 0.001}, :loop=>proc{i+=1; throw :stop if i > 3}){|ev, pid, payload| called = true}.must_be_nil
      called.must_equal false
      t.must_equal 4

    end unless RUBY_PLATFORM =~ /mingw/ # Ruby freezes on this spec on this platform/version
  end
end

describe 'PostgreSQL special float handling' do
  before do
    @db = DB
    @db.create_table!(:test5){Float :value}
    @db.sqls.clear
    @ds = @db[:test5]
  end
  after do
    @db.drop_table?(:test5)
  end

  check_sqls do
    it 'should quote NaN' do
      nan = 0.0/0.0
      @ds.insert_sql(:value => nan).must_equal %q{INSERT INTO "test5" ("value") VALUES ('NaN')}
    end

    it 'should quote +Infinity' do
      inf = 1.0/0.0
      @ds.insert_sql(:value => inf).must_equal %q{INSERT INTO "test5" ("value") VALUES ('Infinity')}
    end

    it 'should quote -Infinity' do
      inf = -1.0/0.0
      @ds.insert_sql(:value => inf).must_equal %q{INSERT INTO "test5" ("value") VALUES ('-Infinity')}
    end
  end

  if DB.adapter_scheme == :postgres
    it 'inserts NaN' do
      nan = 0.0/0.0
      @ds.insert(:value=>nan)
      @ds.all[0][:value].nan?.must_equal true
    end

    it 'inserts +Infinity' do
      inf = 1.0/0.0
      @ds.insert(:value=>inf)
      @ds.all[0][:value].infinite?.must_be :>,  0
    end

    it 'inserts -Infinity' do
      inf = -1.0/0.0
      @ds.insert(:value=>inf)
      @ds.all[0][:value].infinite?.must_be :<,  0
    end
  end
end

describe 'PostgreSQL array handling' do
  before(:all) do
    @db = DB
    @ds = @db[:items]
    @native = DB.adapter_scheme == :postgres || DB.adapter_scheme == :jdbc
    @tp = lambda{@db.schema(:items).map{|a| a.last[:type]}}
  end
  after do
    @db.drop_table?(:items)
  end

  it 'insert and retrieve integer and float arrays of various sizes' do
    @db.create_table!(:items) do
      column :i2, 'int2[]'
      column :i4, 'int4[]'
      column :i8, 'int8[]'
      column :r, 'real[]'
      column :dp, 'double precision[]'
    end
    @tp.call.must_equal [:smallint_array, :integer_array, :bigint_array, :real_array, :float_array]
    @ds.insert(Sequel.pg_array([1], :int2), Sequel.pg_array([nil, 2], :int4), Sequel.pg_array([3, nil], :int8), Sequel.pg_array([4, nil, 4.5], :real), Sequel.pg_array([5, nil, 5.5], "double precision"))
    @ds.count.must_equal 1
    rs = @ds.all
    if @native
      rs.must_equal [{:i2=>[1], :i4=>[nil, 2], :i8=>[3, nil], :r=>[4.0, nil, 4.5], :dp=>[5.0, nil, 5.5]}]
      rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
      rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end

    @ds.delete
    @ds.insert(Sequel.pg_array([[1], [2]], :int2), Sequel.pg_array([[nil, 2], [3, 4]], :int4), Sequel.pg_array([[3, nil], [nil, nil]], :int8), Sequel.pg_array([[4, nil], [nil, 4.5]], :real), Sequel.pg_array([[5, nil], [nil, 5.5]], "double precision"))

    rs = @ds.all
    if @native
      rs.must_equal [{:i2=>[[1], [2]], :i4=>[[nil, 2], [3, 4]], :i8=>[[3, nil], [nil, nil]], :r=>[[4, nil], [nil, 4.5]], :dp=>[[5, nil], [nil, 5.5]]}]
      rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
      rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end
  end

  it 'insert and retrieve decimal arrays' do
    @db.create_table!(:items) do
      column :n, 'numeric[]'
    end
    @tp.call.must_equal [:decimal_array]
    @ds.insert(Sequel.pg_array([BigDecimal.new('1.000000000000000000001'), nil, BigDecimal.new('1')], :numeric))
    @ds.count.must_equal 1
    rs = @ds.all
    if @native
      rs.must_equal [{:n=>[BigDecimal.new('1.000000000000000000001'), nil, BigDecimal.new('1')]}]
      rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
      rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end

    @ds.delete
    @ds.insert(Sequel.pg_array([[BigDecimal.new('1.0000000000000000000000000000001'), nil], [nil, BigDecimal.new('1')]], :numeric))
    rs = @ds.all
    if @native
      rs.must_equal [{:n=>[[BigDecimal.new('1.0000000000000000000000000000001'), nil], [nil, BigDecimal.new('1')]]}]
      rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
      rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end
  end

  it 'insert and retrieve string arrays' do
    @db.create_table!(:items) do
      column :c, 'char(4)[]'
      column :vc, 'varchar[]'
      column :t, 'text[]'
    end
    @tp.call.must_equal [:character_array, :varchar_array, :string_array]
    @ds.insert(Sequel.pg_array(['a', nil, 'NULL', 'b"\'c'], 'char(4)'), Sequel.pg_array(['a', nil, 'NULL', 'b"\'c', '', ''], :varchar), Sequel.pg_array(['a', nil, 'NULL', 'b"\'c'], :text))
    @ds.count.must_equal 1
    rs = @ds.all
    if @native
      rs.must_equal [{:c=>['a   ', nil, 'NULL', 'b"\'c'], :vc=>['a', nil, 'NULL', 'b"\'c', '', ''], :t=>['a', nil, 'NULL', 'b"\'c']}]
      rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
      rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end

    @ds.delete
    @ds.insert(Sequel.pg_array([[['a'], [nil]], [['NULL'], ['b"\'c']]], 'char(4)'), Sequel.pg_array([[['a[],\\[\\]\\,\\""NULL",'], ['']], [['NULL'], ['b"\'c']]], :varchar), Sequel.pg_array([[['a'], [nil]], [['NULL'], ['b"\'c']]], :text))
    rs = @ds.all
    if @native
      rs.must_equal [{:c=>[[['a   '], [nil]], [['NULL'], ['b"\'c']]], :vc=>[[['a[],\\[\\]\\,\\""NULL",'], ['']], [['NULL'], ['b"\'c']]], :t=>[[['a'], [nil]], [['NULL'], ['b"\'c']]]}]
      rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
      rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end
  end

  it 'insert and retrieve arrays of other types' do
    @db.create_table!(:items) do
      column :b, 'bool[]'
      column :d, 'date[]'
      column :t, 'time[]'
      column :ts, 'timestamp[]'
      column :tstz, 'timestamptz[]'
    end
    @tp.call.must_equal [:boolean_array, :date_array, :time_array, :datetime_array, :datetime_timezone_array]

    d = Date.today
    t = Sequel::SQLTime.create(10, 20, 30)
    ts = Time.local(2011, 1, 2, 3, 4, 5)

    @ds.insert(Sequel.pg_array([true, false], :bool), Sequel.pg_array([d, nil], :date), Sequel.pg_array([t, nil], :time), Sequel.pg_array([ts, nil], :timestamp), Sequel.pg_array([ts, nil], :timestamptz))
    @ds.count.must_equal 1
    rs = @ds.all
    if @native
      rs.must_equal [{:b=>[true, false], :d=>[d, nil], :t=>[t, nil], :ts=>[ts, nil], :tstz=>[ts, nil]}]
      rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
      rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end

    @db.create_table!(:items) do
      column :ba, 'bytea[]'
      column :tz, 'timetz[]'
      column :o, 'oid[]'
    end
    @tp.call.must_equal [:blob_array, :time_timezone_array, :oid_array]
    @ds.insert(Sequel.pg_array([Sequel.blob("a\0"), nil], :bytea), Sequel.pg_array([t, nil], :timetz), Sequel.pg_array([1, 2, 3], :oid))
    @ds.count.must_equal 1
    if @native
      rs = @ds.all
      rs.must_equal [{:ba=>[Sequel.blob("a\0"), nil], :tz=>[t, nil], :o=>[1, 2, 3]}]
      rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
      rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end

    @db.create_table!(:items) do
      column :x, 'xml[]'
      column :m, 'money[]'
      column :b, 'bit[]'
      column :vb, 'bit varying[]'
      column :u, 'uuid[]'
      column :xi, 'xid[]'
      column :c, 'cid[]'
      column :n, 'name[]'
      column :o, 'oidvector[]'
    end
    @tp.call.must_equal [:xml_array, :money_array, :bit_array, :varbit_array, :uuid_array, :xid_array, :cid_array, :name_array, :oidvector_array]
    @ds.insert(Sequel.pg_array(['<a></a>'], :xml),
               Sequel.pg_array(['1'], :money),
               Sequel.pg_array(['1'], :bit),
               Sequel.pg_array(['10'], :varbit),
               Sequel.pg_array(['c0f24910-39e7-11e4-916c-0800200c9a66'], :uuid),
               Sequel.pg_array(['12'], :xid),
               Sequel.pg_array(['12'], :cid),
               Sequel.pg_array(['N'], :name),
               Sequel.pg_array(['1 2'], :oidvector))
    @ds.count.must_equal 1
    if @native
      rs = @ds.all
      r = rs.first
      m = r.delete(:m)
      m.class.must_equal(Sequel::Postgres::PGArray)
      m.to_a.must_be_kind_of(Array)
      m.first.must_be_kind_of(String)
      r.must_be(:==, :x=>['<a></a>'], :b=>['1'], :vb=>['10'], :u=>['c0f24910-39e7-11e4-916c-0800200c9a66'], :xi=>['12'], :c=>['12'], :n=>['N'], :o=>['1 2'])
      rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
      rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
      r[:m] = m
      @ds.delete
      @ds.insert(r)
      @ds.all.must_equal rs
    end
  end

  it 'insert and retrieve empty arrays' do
    @db.create_table!(:items) do
      column :n, 'integer[]'
    end
    @ds.insert(:n=>Sequel.pg_array([], :integer))
    @ds.count.must_equal 1
    if @native
      rs = @ds.all
      rs.must_equal [{:n=>[]}]
      rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
      rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end
  end

  it 'convert ruby array :default values' do
    @db.create_table!(:items) do
      column :n, 'integer[]', :default=>[]
    end
    @ds.insert
    @ds.count.must_equal 1
    if @native
      rs = @ds.all
      rs.must_equal [{:n=>[]}]
      rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
      rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end
  end

  it 'insert and retrieve custom array types' do
    int2vector = Class.new do
      attr_reader :array
      def initialize(array)
        @array = array
      end
      def sql_literal_append(ds, sql)
        sql << "'#{array.join(' ')}'"
      end
      def ==(other)
        if other.is_a?(self.class)
          array == other.array
        else
          super
        end
      end
    end
    @db.register_array_type(:int2vector){|s| int2vector.new(s.split.map{|i| i.to_i})}
    @db.create_table!(:items) do
      column :b, 'int2vector[]'
    end
    @tp.call.must_equal [:int2vector_array]
    int2v = int2vector.new([1, 2])
    @ds.insert(Sequel.pg_array([int2v], :int2vector))
    @ds.count.must_equal 1
    rs = @ds.all
    if @native
      rs.must_equal [{:b=>[int2v]}]
      rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
      rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end
  end

  it 'retrieve arrays with explicit bounds' do
    @db.create_table!(:items) do
      column :n, 'integer[]'
    end
    @ds.insert(:n=>"[0:1]={2,3}")
    rs = @ds.all
    rs.must_equal [{:n=>[2,3]}]
    rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
    rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
    @ds.delete
    @ds.insert(rs.first)
    @ds.all.must_equal rs

    @ds.delete
    @ds.insert(:n=>"[0:1][0:0]={{2},{3}}")
    rs = @ds.all
    rs.must_equal [{:n=>[[2], [3]]}]
    rs.first.values.each{|v| v.class.must_equal(Sequel::Postgres::PGArray)}
    rs.first.values.each{|v| v.to_a.must_be_kind_of(Array)}
    @ds.delete
    @ds.insert(rs.first)
    @ds.all.must_equal rs
  end if DB.adapter_scheme == :postgres || DB.adapter_scheme == :jdbc

  it 'use arrays in bound variables' do
    @db.create_table!(:items) do
      column :i, 'int4[]'
    end
    @ds.call(:insert, {:i=>[1,2]}, {:i=>:$i})
    @ds.get(:i).must_equal [1, 2]
    @ds.filter(:i=>:$i).call(:first, :i=>[1,2]).must_equal(:i=>[1,2])
    @ds.filter(:i=>:$i).call(:first, :i=>[1,3]).must_be_nil

    # NULL values
    @ds.delete
    @ds.call(:insert, {:i=>[nil,nil]}, {:i=>:$i})
    @ds.first.must_equal(:i=>[nil, nil])

    @db.create_table!(:items) do
      column :i, 'text[]'
    end
    a = ["\"\\\\\"{}\n\t\r \v\b123afP", 'NULL', nil, '']
    @ds.call(:insert, {:i=>:$i}, :i=>Sequel.pg_array(a))
    @ds.get(:i).must_equal a
    @ds.filter(:i=>:$i).call(:first, :i=>a).must_equal(:i=>a)
    @ds.filter(:i=>:$i).call(:first, :i=>['', nil, nil, 'a']).must_be_nil

    @db.create_table!(:items) do
      column :i, 'date[]'
    end
    a = [Date.today]
    @ds.call(:insert, {:i=>:$i}, :i=>Sequel.pg_array(a, 'date'))
    @ds.get(:i).must_equal a
    @ds.filter(:i=>:$i).call(:first, :i=>a).must_equal(:i=>a)
    @ds.filter(:i=>:$i).call(:first, :i=>Sequel.pg_array([Date.today-1], 'date')).must_be_nil

    @db.create_table!(:items) do
      column :i, 'timestamp[]'
    end
    a = [Time.local(2011, 1, 2, 3, 4, 5)]
    @ds.call(:insert, {:i=>:$i}, :i=>Sequel.pg_array(a, 'timestamp'))
    @ds.get(:i).must_equal a
    @ds.filter(:i=>:$i).call(:first, :i=>a).must_equal(:i=>a)
    @ds.filter(:i=>:$i).call(:first, :i=>Sequel.pg_array([a.first-1], 'timestamp')).must_be_nil

    @db.create_table!(:items) do
      column :i, 'boolean[]'
    end
    a = [true, false]
    @ds.call(:insert, {:i=>:$i}, :i=>Sequel.pg_array(a, 'boolean'))
    @ds.get(:i).must_equal a
    @ds.filter(:i=>:$i).call(:first, :i=>a).must_equal(:i=>a)
    @ds.filter(:i=>:$i).call(:first, :i=>Sequel.pg_array([false, true], 'boolean')).must_be_nil

    @db.create_table!(:items) do
      column :i, 'bytea[]'
    end
    a = [Sequel.blob("a\0'\"")]
    @ds.call(:insert, {:i=>:$i}, :i=>Sequel.pg_array(a, 'bytea'))
    @ds.get(:i).must_equal a
    @ds.filter(:i=>:$i).call(:first, :i=>a).must_equal(:i=>a)
    @ds.filter(:i=>:$i).call(:first, :i=>Sequel.pg_array([Sequel.blob("b\0")], 'bytea')).must_be_nil
  end if uses_pg_or_jdbc

  it 'with models' do
    @db.create_table!(:items) do
      primary_key :id
      column :i, 'integer[]'
      column :f, 'double precision[]'
      column :d, 'numeric[]'
      column :t, 'text[]'
    end
    c = Class.new(Sequel::Model(@db[:items]))
    c.plugin :pg_typecast_on_load, :i, :f, :d, :t unless @native
    h = {:i=>[1,2, nil], :f=>[[1, 2.5], [3, 4.5]], :d=>[1, BigDecimal.new('1.000000000000000000001')], :t=>[%w'a b c', ['NULL', nil, '1']]}
    o = c.create(h)
    o.i.must_equal [1, 2, nil]
    o.f.must_equal [[1, 2.5], [3, 4.5]]
    o.d.must_equal [BigDecimal.new('1'), BigDecimal.new('1.000000000000000000001')]
    o.t.must_equal [%w'a b c', ['NULL', nil, '1']]
    c.where(:i=>o.i, :f=>o.f, :d=>o.d, :t=>o.t).all.must_equal [o]
    o2 = c.new(h)
    c.where(:i=>o2.i, :f=>o2.f, :d=>o2.d, :t=>o2.t).all.must_equal [o]

    @db.create_table!(:items) do
      primary_key :id
      column :i, 'int2[]'
      column :f, 'real[]'
      column :d, 'numeric(30,28)[]'
      column :t, 'varchar[]'
    end
    c = Class.new(Sequel::Model(@db[:items]))
    c.plugin :pg_typecast_on_load, :i, :f, :d, :t unless @native
    o = c.create(:i=>[1,2, nil], :f=>[[1, 2.5], [3, 4.5]], :d=>[1, BigDecimal.new('1.000000000000000000001')], :t=>[%w'a b c', ['NULL', nil, '1']])
    o.i.must_equal [1, 2, nil]
    o.f.must_equal [[1, 2.5], [3, 4.5]]
    o.d.must_equal [BigDecimal.new('1'), BigDecimal.new('1.000000000000000000001')]
    o.t.must_equal [%w'a b c', ['NULL', nil, '1']]
    c.where(:i=>o.i, :f=>o.f, :d=>o.d, :t=>o.t).all.must_equal [o]
    o2 = c.new(h)
    c.where(:i=>o2.i, :f=>o2.f, :d=>o2.d, :t=>o2.t).all.must_equal [o]
  end

  it 'operations/functions with pg_array_ops' do
    Sequel.extension :pg_array_ops
    @db.create_table!(:items){column :i, 'integer[]'; column :i2, 'integer[]'; column :i3, 'integer[]'; column :i4, 'integer[]'; column :i5, 'integer[]'}
    @ds.insert(Sequel.pg_array([1, 2, 3]), Sequel.pg_array([2, 1]), Sequel.pg_array([4, 4]), Sequel.pg_array([[5, 5], [4, 3]]), Sequel.pg_array([1, nil, 5]))

    @ds.get(Sequel.pg_array(:i) > :i3).must_equal false
    @ds.get(Sequel.pg_array(:i3) > :i).must_equal true

    @ds.get(Sequel.pg_array(:i) >= :i3).must_equal false
    @ds.get(Sequel.pg_array(:i) >= :i).must_equal true

    @ds.get(Sequel.pg_array(:i3) < :i).must_equal false
    @ds.get(Sequel.pg_array(:i) < :i3).must_equal true

    @ds.get(Sequel.pg_array(:i3) <= :i).must_equal false
    @ds.get(Sequel.pg_array(:i) <= :i).must_equal true

    @ds.get(Sequel.expr(5=>Sequel.pg_array(:i).any)).must_equal false
    @ds.get(Sequel.expr(1=>Sequel.pg_array(:i).any)).must_equal true

    @ds.get(Sequel.expr(1=>Sequel.pg_array(:i3).all)).must_equal false
    @ds.get(Sequel.expr(4=>Sequel.pg_array(:i3).all)).must_equal true

    @ds.get(Sequel.expr(1=>Sequel.pg_array(:i)[1..1].any)).must_equal true
    @ds.get(Sequel.expr(2=>Sequel.pg_array(:i)[1..1].any)).must_equal false

    @ds.get(Sequel.pg_array(:i2)[1]).must_equal 2
    @ds.get(Sequel.pg_array(:i2)[1]).must_equal 2
    @ds.get(Sequel.pg_array(:i2)[2]).must_equal 1

    @ds.get(Sequel.pg_array(:i4)[2][1]).must_equal 4
    @ds.get(Sequel.pg_array(:i4)[2][2]).must_equal 3

    @ds.get(Sequel.pg_array(:i).contains(:i2)).must_equal true
    @ds.get(Sequel.pg_array(:i).contains(:i3)).must_equal false

    @ds.get(Sequel.pg_array(:i2).contained_by(:i)).must_equal true
    @ds.get(Sequel.pg_array(:i).contained_by(:i2)).must_equal false

    @ds.get(Sequel.pg_array(:i).overlaps(:i2)).must_equal true
    @ds.get(Sequel.pg_array(:i2).overlaps(:i3)).must_equal false

    @ds.get(Sequel.pg_array(:i).dims).must_equal '[1:3]'
    @ds.get(Sequel.pg_array(:i).length).must_equal 3
    @ds.get(Sequel.pg_array(:i).lower).must_equal 1

    if @db.server_version >= 80400
      @ds.select(Sequel.pg_array(:i).unnest).from_self.count.must_equal 3
    end
    if @db.server_version >= 90000
      @ds.get(Sequel.pg_array(:i5).join).must_equal '15'
      @ds.get(Sequel.pg_array(:i5).join(':')).must_equal '1:5'
      @ds.get(Sequel.pg_array(:i5).join(':', '*')).must_equal '1:*:5'
    end
    if @db.server_version >= 90300
      @ds.get(Sequel.pg_array(:i5).remove(1).length).must_equal 2
      @ds.get(Sequel.pg_array(:i5).replace(1, 4).contains([1])).must_equal false
      @ds.get(Sequel.pg_array(:i5).replace(1, 4).contains([4])).must_equal true
    end
    if @db.server_version >= 90400
      @ds.get(Sequel.pg_array(:i).cardinality).must_equal 3
      @ds.get(Sequel.pg_array(:i4).cardinality).must_equal 4
      @ds.get(Sequel.pg_array(:i5).cardinality).must_equal 3

      @ds.from{Sequel.pg_array([1,2,3]).op.unnest([4,5,6], [7,8]).as(:t1, [:a, :b, :c])}.select_order_map([:a, :b, :c]).must_equal [[1, 4, 7], [2, 5, 8], [3, 6, nil]]
    end

    if @native
      @ds.get(Sequel.pg_array(:i).push(4)).must_equal [1, 2, 3, 4]
      @ds.get(Sequel.pg_array(:i).unshift(4)).must_equal [4, 1, 2, 3]
      @ds.get(Sequel.pg_array(:i).concat(:i2)).must_equal [1, 2, 3, 2, 1]
    end

    if @db.type_supported?(:hstore)
      Sequel.extension :pg_hstore_ops
      @db.get(Sequel.pg_array(['a', 'b']).op.hstore['a']).must_equal 'b'
      @db.get(Sequel.pg_array(['a', 'b']).op.hstore(['c', 'd'])['a']).must_equal 'c'
    end
  end
end

describe 'PostgreSQL hstore handling' do
  before(:all) do
    @db = DB
    @ds = @db[:items]
    @h = {'a'=>'b', 'c'=>nil, 'd'=>'NULL', 'e'=>'\\\\" \\\' ,=>'}
    @native = DB.adapter_scheme == :postgres || DB.adapter_scheme == :jdbc
  end
  after do
    @db.drop_table?(:items)
  end

  it 'insert and retrieve hstore values' do
    @db.create_table!(:items) do
      column :h, :hstore
    end
    @ds.insert(Sequel.hstore(@h))
    @ds.count.must_equal 1
    if @native
      rs = @ds.all
      v = rs.first[:h]
      v.must_equal @h
      v.class.must_equal(Sequel::Postgres::HStore)
      v.to_hash.must_be_kind_of(Hash)
      v.to_hash.must_equal @h
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end
  end

  it 'insert and retrieve hstore[] values' do
    @db.create_table!(:items) do
      column :h, 'hstore[]'
    end
    @ds.insert(Sequel.pg_array([Sequel.hstore(@h)], :hstore))
    @ds.count.must_equal 1
    if @native
      rs = @ds.all
      v = rs.first[:h].first
      v.class.must_equal(Sequel::Postgres::HStore)
      v.to_hash.must_be_kind_of(Hash)
      v.to_hash.must_equal @h
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end
  end

  it 'use hstore in bound variables' do
    @db.create_table!(:items) do
      column :i, :hstore
    end
    @ds.call(:insert, {:i=>Sequel.hstore(@h)}, {:i=>:$i})
    @ds.get(:i).must_equal @h
    @ds.filter(:i=>:$i).call(:first, :i=>Sequel.hstore(@h)).must_equal(:i=>@h)
    @ds.filter(:i=>:$i).call(:first, :i=>Sequel.hstore({})).must_be_nil

    @ds.delete
    @ds.call(:insert, {:i=>Sequel.hstore('a'=>nil)}, {:i=>:$i})
    @ds.get(:i).must_equal Sequel.hstore('a'=>nil)

    @ds.delete
    @ds.call(:insert, {:i=>@h}, {:i=>:$i})
    @ds.get(:i).must_equal @h
    @ds.filter(:i=>:$i).call(:first, :i=>@h).must_equal(:i=>@h)
    @ds.filter(:i=>:$i).call(:first, :i=>{}).must_be_nil
  end if uses_pg_or_jdbc

  it 'with models and associations' do
    @db.create_table!(:items) do
      primary_key :id
      column :h, :hstore
    end
    c = Class.new(Sequel::Model(@db[:items])) do
      def self.name
        'Item'
      end
      unrestrict_primary_key
      def item_id
        h['item_id'].to_i if h
      end
      def left_item_id
        h['left_item_id'].to_i if h
      end
    end
    Sequel.extension :pg_hstore_ops
    c.plugin :many_through_many
    c.plugin :pg_typecast_on_load, :h unless @native

    h = {'item_id'=>"2", 'left_item_id'=>"1"}
    o2 = c.create(:id=>2)
    o = c.create(:id=>1, :h=>h)
    o.h.must_equal h

    c.many_to_one :item, :class=>c, :key_column=>Sequel.cast(Sequel.hstore(:h)['item_id'], Integer)
    c.one_to_many :items, :class=>c, :key=>Sequel.cast(Sequel.hstore(:h)['item_id'], Integer), :key_method=>:item_id
    c.many_to_many :related_items, :class=>c, :join_table=>Sequel[:items].as(:i), :left_key=>Sequel.cast(Sequel.hstore(:h)['left_item_id'], Integer), :right_key=>Sequel.cast(Sequel.hstore(:h)['item_id'], Integer)

    c.many_to_one :other_item, :class=>c, :key=>:id, :primary_key_method=>:item_id, :primary_key=>Sequel.cast(Sequel.hstore(:h)['item_id'], Integer), :reciprocal=>:other_items
    c.one_to_many :other_items, :class=>c, :primary_key=>:item_id, :key=>:id, :primary_key_column=>Sequel.cast(Sequel.hstore(:h)['item_id'], Integer), :reciprocal=>:other_item
    c.many_to_many :other_related_items, :class=>c, :join_table=>Sequel[:items].as(:i), :left_key=>:id, :right_key=>:id,
      :left_primary_key_column=>Sequel.cast(Sequel.hstore(:h)['left_item_id'], Integer),
      :left_primary_key=>:left_item_id,
      :right_primary_key=>Sequel.cast(Sequel.hstore(:h)['left_item_id'], Integer),
      :right_primary_key_method=>:left_item_id

    c.many_through_many :mtm_items, [
        [:items, Sequel.cast(Sequel.hstore(:h)['item_id'], Integer), Sequel.cast(Sequel.hstore(:h)['left_item_id'], Integer)],
        [:items, Sequel.cast(Sequel.hstore(:h)['left_item_id'], Integer), Sequel.cast(Sequel.hstore(:h)['left_item_id'], Integer)]
      ],
      :class=>c,
      :left_primary_key_column=>Sequel.cast(Sequel.hstore(:h)['item_id'], Integer),
      :left_primary_key=>:item_id,
      :right_primary_key=>Sequel.cast(Sequel.hstore(:h)['left_item_id'], Integer),
      :right_primary_key_method=>:left_item_id

    # Lazily Loading
    o.item.must_equal o2
    o2.items.must_equal [o]
    o.related_items.must_equal [o2]
    o2.other_item.must_equal o
    o.other_items.must_equal [o2]
    o.other_related_items.must_equal [o]
    o.mtm_items.must_equal [o]

    # Eager Loading via eager
    os = c.eager(:item, :related_items, :other_items, :other_related_items, :mtm_items).where(:id=>1).all.first
    os.item.must_equal o2
    os.related_items.must_equal [o2]
    os.other_items.must_equal [o2]
    os.other_related_items.must_equal [o]
    os.mtm_items.must_equal [o]
    os = c.eager(:items, :other_item).where(:id=>2).all.first
    os.items.must_equal [o]
    os.other_item.must_equal o

    # Eager Loading via eager_graph
    c.eager_graph(:item).where(Sequel[:items][:id]=>1).all.first.item.must_equal o2
    c.eager_graph(:items).where(Sequel[:items][:id]=>2).all.first.items.must_equal [o]
    c.eager_graph(:related_items).where(Sequel[:items][:id]=>1).all.first.related_items.must_equal [o2]
    c.eager_graph(:other_item).where(Sequel[:items][:id]=>2).all.first.other_item.must_equal o
    c.eager_graph(:other_items).where(Sequel[:items][:id]=>1).all.first.other_items.must_equal [o2]
    c.eager_graph(:other_related_items).where(Sequel[:items][:id]=>1).all.first.other_related_items.must_equal [o]
    c.eager_graph(:mtm_items).where(Sequel[:items][:id]=>1).all.first.mtm_items.must_equal [o]

    # Filter By Associations - Model Instances
    c.filter(:item=>o2).all.must_equal [o]
    c.filter(:items=>o).all.must_equal [o2]
    c.filter(:related_items=>o2).all.must_equal [o]
    c.filter(:other_item=>o).all.must_equal [o2]
    c.filter(:other_items=>o2).all.must_equal [o]
    c.filter(:other_related_items=>o).all.must_equal [o]
    c.filter(:mtm_items=>o).all.must_equal [o]
   
    # Filter By Associations - Model Datasets
    c.filter(:item=>c.filter(:id=>o2.id)).all.must_equal [o]
    c.filter(:items=>c.filter(:id=>o.id)).all.must_equal [o2]
    c.filter(:related_items=>c.filter(:id=>o2.id)).all.must_equal [o]
    c.filter(:other_item=>c.filter(:id=>o.id)).all.must_equal [o2]
    c.filter(:other_items=>c.filter(:id=>o2.id)).all.must_equal [o]
    c.filter(:other_related_items=>c.filter(:id=>o.id)).all.must_equal [o]
    c.filter(:mtm_items=>c.filter(:id=>o.id)).all.must_equal [o]
  end

  it 'operations/functions with pg_hstore_ops' do
    Sequel.extension :pg_hstore_ops, :pg_array_ops
    @db.create_table!(:items){hstore :h1; hstore :h2; hstore :h3; String :t}
    @ds.insert(Sequel.hstore('a'=>'b', 'c'=>nil), Sequel.hstore('a'=>'b'), Sequel.hstore('d'=>'e'))
    h1 = Sequel.hstore(:h1)
    h2 = Sequel.hstore(:h2)
    h3 = Sequel.hstore(:h3)
    
    @ds.get(h1['a']).must_equal 'b'
    @ds.get(h1['d']).must_be_nil

    @ds.get(h2.concat(h3).keys.length).must_equal 2
    @ds.get(h1.concat(h3).keys.length).must_equal 3
    @ds.get(h2.merge(h3).keys.length).must_equal 2
    @ds.get(h1.merge(h3).keys.length).must_equal 3

    @ds.get(h1.contain_all(%w'a c')).must_equal true
    @ds.get(h1.contain_all(%w'a d')).must_equal false

    @ds.get(h1.contain_any(%w'a d')).must_equal true
    @ds.get(h1.contain_any(%w'e d')).must_equal false

    @ds.get(h1.contains(h2)).must_equal true
    @ds.get(h1.contains(h3)).must_equal false

    @ds.get(h2.contained_by(h1)).must_equal true
    @ds.get(h2.contained_by(h3)).must_equal false

    @ds.get(h1.defined('a')).must_equal true
    @ds.get(h1.defined('c')).must_equal false
    @ds.get(h1.defined('d')).must_equal false

    @ds.get(h1.delete('a')['c']).must_be_nil
    @ds.get(h1.delete(%w'a d')['c']).must_be_nil
    @ds.get(h1.delete(h2)['c']).must_be_nil

    @ds.from(Sequel.hstore('a'=>'b', 'c'=>nil).op.each).order(:key).all.must_equal [{:key=>'a', :value=>'b'}, {:key=>'c', :value=>nil}]

    @ds.get(h1.has_key?('c')).must_equal true
    @ds.get(h1.include?('c')).must_equal true
    @ds.get(h1.key?('c')).must_equal true
    @ds.get(h1.member?('c')).must_equal true
    @ds.get(h1.exist?('c')).must_equal true
    @ds.get(h1.has_key?('d')).must_equal false
    @ds.get(h1.include?('d')).must_equal false
    @ds.get(h1.key?('d')).must_equal false
    @ds.get(h1.member?('d')).must_equal false
    @ds.get(h1.exist?('d')).must_equal false

    @ds.get(h1.hstore.hstore.hstore.keys.length).must_equal 2
    @ds.get(h1.keys.length).must_equal 2
    @ds.get(h2.keys.length).must_equal 1
    @ds.get(h1.akeys.length).must_equal 2
    @ds.get(h2.akeys.length).must_equal 1

    @ds.from(Sequel.hstore('t'=>'s').op.populate(Sequel::SQL::Cast.new(nil, :items))).select_map(:t).must_equal ['s']
    @ds.from(Sequel[:items].as(:i)).select(Sequel.hstore('t'=>'s').op.record_set(:i).as(:r)).from_self(:alias=>:s).select(Sequel.lit('(r).*')).from_self.select_map(:t).must_equal ['s']

    @ds.from(Sequel.hstore('t'=>'s', 'a'=>'b').op.skeys.as(:s)).select_order_map(:s).must_equal %w'a t'
    @ds.from((Sequel.hstore('t'=>'s', 'a'=>'b').op - 'a').skeys.as(:s)).select_order_map(:s).must_equal %w't'

    @ds.get(h1.slice(%w'a c').keys.length).must_equal 2
    @ds.get(h1.slice(%w'd c').keys.length).must_equal 1
    @ds.get(h1.slice(%w'd e').keys.length).must_be_nil

    @ds.from(Sequel.hstore('t'=>'s', 'a'=>'b').op.svals.as(:s)).select_order_map(:s).must_equal %w'b s'

    @ds.get(h1.to_array.length).must_equal 4
    @ds.get(h2.to_array.length).must_equal 2

    @ds.get(h1.to_matrix.length).must_equal 2
    @ds.get(h2.to_matrix.length).must_equal 1

    @ds.get(h1.values.length).must_equal 2
    @ds.get(h2.values.length).must_equal 1
    @ds.get(h1.avals.length).must_equal 2
    @ds.get(h2.avals.length).must_equal 1
  end
end if DB.type_supported?(:hstore)

describe 'PostgreSQL json type' do
  before(:all) do
    @db = DB
    @ds = @db[:items]
    @a = [1, 2, {'a'=>'b'}, 3.0]
    @h = {'a'=>'b', '1'=>[3, 4, 5]}
    @native = DB.adapter_scheme == :postgres || DB.adapter_scheme == :jdbc
  end
  after do
    @db.drop_table?(:items)
  end

  json_types = [:json]
  json_types << :jsonb if DB.server_version >= 90400
  json_types.each do |json_type|
    json_array_type = "#{json_type}[]"
    pg_json = lambda{|v| Sequel.send(:"pg_#{json_type}", v)}

    it 'insert and retrieve json values' do
      hash_class = json_type == :jsonb ? Sequel::Postgres::JSONBHash : Sequel::Postgres::JSONHash
      array_class = json_type == :jsonb ? Sequel::Postgres::JSONBArray : Sequel::Postgres::JSONArray

      @db.create_table!(:items){column :j, json_type}
      @ds.insert(pg_json.call(@h))
      @ds.count.must_equal 1
      if @native
        rs = @ds.all
        v = rs.first[:j]
        v.class.must_equal(hash_class)
        v.to_hash.must_be_kind_of(Hash)
        v.must_equal @h
        v.to_hash.must_equal @h
        @ds.delete
        @ds.insert(rs.first)
        @ds.all.must_equal rs
      end

      @ds.delete
      @ds.insert(pg_json.call(@a))
      @ds.count.must_equal 1
      if @native
        rs = @ds.all
        v = rs.first[:j]
        v.class.must_equal(array_class)
        v.to_a.must_be_kind_of(Array)
        v.must_equal @a
        v.to_a.must_equal @a
        @ds.delete
        @ds.insert(rs.first)
        @ds.all.must_equal rs
      end
    end

    it 'insert and retrieve json[] values' do
      @db.create_table!(:items){column :j, json_array_type}
      j = Sequel.pg_array([pg_json.call('a'=>1), pg_json.call(['b', 2])])
      @ds.insert(j)
      @ds.count.must_equal 1
      if @native
        rs = @ds.all
        v = rs.first[:j]
        v.class.must_equal(Sequel::Postgres::PGArray)
        v.to_a.must_be_kind_of(Array)
        v.must_equal j
        v.to_a.must_equal j
        @ds.delete
        @ds.insert(rs.first)
        @ds.all.must_equal rs
      end
    end

    it 'with models' do
      @db.create_table!(:items) do
        primary_key :id
        column :h, json_type
      end
      c = Class.new(Sequel::Model(@db[:items]))
      c.plugin :pg_typecast_on_load, :h unless @native
      c.create(:h=>pg_json.call(@h)).h.must_equal @h
      c.create(:h=>pg_json.call(@a)).h.must_equal @a
    end

    it 'use json in bound variables' do
      @db.create_table!(:items){column :i, json_type}
      @ds.call(:insert, {:i=>pg_json.call(@h)}, {:i=>:$i})
      @ds.get(:i).must_equal @h

      @ds.delete
      @ds.call(:insert, {:i=>pg_json.call('a'=>nil)}, {:i=>:$i})
      @ds.get(:i).must_equal pg_json.call('a'=>nil)

      @db.create_table!(:items){column :i, json_array_type}
      j = Sequel.pg_array([pg_json.call('a'=>1), pg_json.call(['b', 2])], json_type)
      @ds.call(:insert, {:i=>j}, {:i=>:$i})
      @ds.get(:i).must_equal j
    end if uses_pg_or_jdbc

    it 'operations/functions with pg_json_ops' do
      Sequel.extension :pg_json_ops
      jo = pg_json.call('a'=>1, 'b'=>{'c'=>2, 'd'=>{'e'=>3}}).op
      ja = pg_json.call([2, 3, %w'a b']).op

      @db.get(jo['a']).must_equal 1
      @db.get(jo['b']['c']).must_equal 2
      @db.get(jo[%w'b c']).must_equal 2
      @db.get(jo['b'].get_text(%w'd e')).must_equal "3"
      @db.get(jo[%w'b d'].get_text('e')).must_equal "3"
      @db.get(ja[1]).must_equal 3
      @db.get(ja[%w'2 1']).must_equal 'b'

      @db.get(jo.extract('a')).must_equal 1
      @db.get(jo.extract('b').extract('c')).must_equal 2
      @db.get(jo.extract('b', 'c')).must_equal 2
      @db.get(jo.extract('b', 'd', 'e')).must_equal 3
      @db.get(jo.extract_text('b', 'd')).gsub(' ', '').must_equal '{"e":3}'
      @db.get(jo.extract_text('b', 'd', 'e')).must_equal '3'

      @db.get(ja.array_length).must_equal 3
      @db.from(ja.array_elements.as(:v)).select_map(:v).must_equal [2, 3, %w'a b']

      if DB.server_version >= 90400 
        @db.get(jo.typeof).must_equal 'object'
        @db.get(ja.typeof).must_equal 'array'
        @db.from(ja.array_elements_text.as(:v)).select_map(:v).map{|s| s.gsub(' ', '')}.must_equal ['2', '3', '["a","b"]']
        @db.from(jo.to_record.as(:v, [Sequel.lit('a integer'), Sequel.lit('b text')])).select_map(:a).must_equal [1]
        @db.from(pg_json.call([{'a'=>1, 'b'=>1}]).op.to_recordset.as(:v, [Sequel.lit('a integer'), Sequel.lit('b integer')])).select_map(:a).must_equal [1]

        if json_type == :jsonb
          @db.get(jo.has_key?('a')).must_equal true
          @db.get(jo.has_key?('c')).must_equal false
          @db.get(pg_json.call(['2', '3', %w'a b']).op.include?('2')).must_equal true
          @db.get(pg_json.call(['2', '3', %w'a b']).op.include?('4')).must_equal false

          @db.get(jo.contain_all(['a', 'b'])).must_equal true
          @db.get(jo.contain_all(['a', 'c'])).must_equal false
          @db.get(jo.contain_all(['d', 'c'])).must_equal false
          @db.get(jo.contain_any(['a', 'b'])).must_equal true
          @db.get(jo.contain_any(['a', 'c'])).must_equal true
          @db.get(jo.contain_any(['d', 'c'])).must_equal false

          @db.get(jo.contains(jo)).must_equal true
          @db.get(jo.contained_by(jo)).must_equal true
          @db.get(jo.contains('a'=>1)).must_equal true
          @db.get(jo.contained_by('a'=>1)).must_equal false
          @db.get(pg_json.call('a'=>1).op.contains(jo)).must_equal false
          @db.get(pg_json.call('a'=>1).op.contained_by(jo)).must_equal true

          @db.get(ja.contains(ja)).must_equal true
          @db.get(ja.contained_by(ja)).must_equal true
          @db.get(ja.contains([2,3])).must_equal true
          @db.get(ja.contained_by([2,3])).must_equal false
          @db.get(pg_json.call([2,3]).op.contains(ja)).must_equal false
          @db.get(pg_json.call([2,3]).op.contained_by(ja)).must_equal true
        end
      end

      if DB.server_version >= 90500  && json_type == :jsonb
        @db.get(pg_json.call([nil, 2]).op.strip_nulls[1]).must_equal 2
        @db.get(pg_json.call([nil, 2]).op.pretty).must_equal "[\n    null,\n    2\n]"
        @db.from((jo - 'b').keys.as(:k)).select_order_map(:k).must_equal %w'a'
        @db.from(jo.delete_path(['b','c'])['b'].keys.as(:k)).select_order_map(:k).must_equal %w'd'
        @db.from(jo.concat('c'=>'d').keys.as(:k)).select_order_map(:k).must_equal %w'a b c'
        @db.get(jo.set(%w'a', 'f'=>'g')['a']['f']).must_equal 'g'
      end

      if DB.server_version >= 90600  && json_type == :jsonb
        @db.get(pg_json.call([3]).op.insert(['0'], {'a'=>2})[0]['a']).must_equal 2
        @db.get(pg_json.call([3]).op.insert(['0'], {'a'=>2}, false)[0]['a']).must_equal 2
        @db.get(pg_json.call([3]).op.insert(['0'], {'a'=>2}, true)[0]).must_equal 3
        @db.get(pg_json.call([3]).op.insert(['0'], {'a'=>2}, true)[1]['a']).must_equal 2
      end

      @db.from(jo.keys.as(:k)).select_order_map(:k).must_equal %w'a b'
      @db.from(jo.each).select_order_map(:key).must_equal %w'a b'
      @db.from(jo.each).order(:key).select_map(:value).must_equal [1, {'c'=>2, 'd'=>{'e'=>3}}]
      @db.from(jo.each_text).select_order_map(:key).must_equal %w'a b'
      @db.from(jo.each_text).order(:key).where(:key=>'b').get(:value).gsub(' ', '').must_match(/\{"d":\{"e":3\},"c":2\}|\{"c":2,"d":\{"e":3\}\}/)

      Sequel.extension :pg_row_ops
      @db.create_table!(:items) do
        Integer :a
        String :b
      end
      j = Sequel.pg_json('a'=>1, 'b'=>'c').op
      @db.get(j.populate(Sequel.cast(nil, :items)).pg_row[:a]).must_equal 1
      @db.get(j.populate(Sequel.cast(nil, :items)).pg_row[:b]).must_equal 'c'
      j = Sequel.pg_json([{'a'=>1, 'b'=>'c'}, {'a'=>2, 'b'=>'d'}]).op
      @db.from(j.populate_set(Sequel.cast(nil, :items))).select_order_map(:a).must_equal [1, 2]
      @db.from(j.populate_set(Sequel.cast(nil, :items))).select_order_map(:b).must_equal %w'c d'
    end if DB.server_version >= 90300 && (DB.adapter_scheme == :postgres || DB.adapter_scheme == :jdbc)
  end
end if DB.server_version >= 90200

describe 'PostgreSQL inet/cidr types' do
  ipv6_broken = (IPAddr.new('::1'); false) rescue true

  before(:all) do
    @db = DB
    @ds = @db[:items]
    @v4 = '127.0.0.1'
    @v4nm = '127.0.0.0/8'
    @v6 = '2001:4f8:3:ba:2e0:81ff:fe22:d1f1'
    @v6nm = '2001:4f8:3:ba::/64'
    @ipv4 = IPAddr.new(@v4)
    @ipv4nm = IPAddr.new(@v4nm)
    unless ipv6_broken
      @ipv6 = IPAddr.new(@v6)
      @ipv6nm = IPAddr.new(@v6nm)
    end
    @native = DB.adapter_scheme == :postgres || DB.adapter_scheme == :jdbc
  end
  after do
    @db.drop_table?(:items)
  end

  it 'insert and retrieve inet/cidr values' do
    @db.create_table!(:items){inet :i; cidr :c}
    @ds.insert(@ipv4, @ipv4nm)
    @ds.count.must_equal 1
    if @native
      rs = @ds.all
      rs.first[:i].must_equal @ipv4
      rs.first[:c].must_equal @ipv4nm
      rs.first[:i].must_be_kind_of(IPAddr)
      rs.first[:c].must_be_kind_of(IPAddr)
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end

    unless ipv6_broken
      @ds.delete
      @ds.insert(@ipv6, @ipv6nm)
      @ds.count.must_equal 1
      if @native
        rs = @ds.all
        rs.first[:j]
        rs.first[:i].must_equal @ipv6
        rs.first[:c].must_equal @ipv6nm
        rs.first[:i].must_be_kind_of(IPAddr)
        rs.first[:c].must_be_kind_of(IPAddr)
        @ds.delete
        @ds.insert(rs.first)
        @ds.all.must_equal rs
      end
    end
  end

  it 'insert and retrieve inet/cidr/macaddr array values' do
    @db.create_table!(:items){column :i, 'inet[]'; column :c, 'cidr[]'; column :m, 'macaddr[]'}
    @ds.insert(Sequel.pg_array([@ipv4], 'inet'), Sequel.pg_array([@ipv4nm], 'cidr'), Sequel.pg_array(['12:34:56:78:90:ab'], 'macaddr'))
    @ds.count.must_equal 1
    if @native
      rs = @ds.all
      rs.first.values.all?{|c| c.is_a?(Sequel::Postgres::PGArray)}.must_equal true
      rs.first[:i].first.must_equal @ipv4
      rs.first[:c].first.must_equal @ipv4nm
      rs.first[:m].first.must_equal '12:34:56:78:90:ab'
      rs.first[:i].first.must_be_kind_of(IPAddr)
      rs.first[:c].first.must_be_kind_of(IPAddr)
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end
  end

  it 'use ipaddr in bound variables' do
    @db.create_table!(:items){inet :i; cidr :c}

    @ds.call(:insert, {:i=>@ipv4, :c=>@ipv4nm}, {:i=>:$i, :c=>:$c})
    @ds.get(:i).must_equal @ipv4
    @ds.get(:c).must_equal @ipv4nm
    @ds.filter(:i=>:$i, :c=>:$c).call(:first, :i=>@ipv4, :c=>@ipv4nm).must_equal(:i=>@ipv4, :c=>@ipv4nm)
    @ds.filter(:i=>:$i, :c=>:$c).call(:first, :i=>@ipv6, :c=>@ipv6nm).must_be_nil
    @ds.filter(:i=>:$i, :c=>:$c).call(:delete, :i=>@ipv4, :c=>@ipv4nm).must_equal 1

    unless ipv6_broken
      @ds.call(:insert, {:i=>@ipv6, :c=>@ipv6nm}, {:i=>:$i, :c=>:$c})
      @ds.get(:i).must_equal @ipv6
      @ds.get(:c).must_equal @ipv6nm
      @ds.filter(:i=>:$i, :c=>:$c).call(:first, :i=>@ipv6, :c=>@ipv6nm).must_equal(:i=>@ipv6, :c=>@ipv6nm)
      @ds.filter(:i=>:$i, :c=>:$c).call(:first, :i=>@ipv4, :c=>@ipv4nm).must_be_nil
      @ds.filter(:i=>:$i, :c=>:$c).call(:delete, :i=>@ipv6, :c=>@ipv6nm).must_equal 1
    end

    @db.create_table!(:items){column :i, 'inet[]'; column :c, 'cidr[]'; column :m, 'macaddr[]'}
    @ds.call(:insert, {:i=>[@ipv4], :c=>[@ipv4nm], :m=>['12:34:56:78:90:ab']}, {:i=>:$i, :c=>:$c, :m=>:$m})
    @ds.filter(:i=>:$i, :c=>:$c, :m=>:$m).call(:first, :i=>[@ipv4], :c=>[@ipv4nm], :m=>['12:34:56:78:90:ab']).must_equal(:i=>[@ipv4], :c=>[@ipv4nm], :m=>['12:34:56:78:90:ab'])
    @ds.filter(:i=>:$i, :c=>:$c, :m=>:$m).call(:first, :i=>[], :c=>[], :m=>[]).must_be_nil
    @ds.filter(:i=>:$i, :c=>:$c, :m=>:$m).call(:delete, :i=>[@ipv4], :c=>[@ipv4nm], :m=>['12:34:56:78:90:ab']).must_equal 1
  end if uses_pg_or_jdbc

  it 'with models' do
    @db.create_table!(:items) do
      primary_key :id
      inet :i
      cidr :c
    end
    c = Class.new(Sequel::Model(@db[:items]))
    c.plugin :pg_typecast_on_load, :i, :c unless @native
    c.create(:i=>@v4, :c=>@v4nm).values.values_at(:i, :c).must_equal [@ipv4, @ipv4nm]
    unless ipv6_broken
      c.create(:i=>@ipv6, :c=>@ipv6nm).values.values_at(:i, :c).must_equal [@ipv6, @ipv6nm]
    end
  end

  it 'operations/functions with pg_inet_ops' do
    Sequel.extension :pg_inet_ops

    @db.get(Sequel.pg_inet_op('1.2.3.4') << '1.2.3.0/24').must_equal true
    @db.get(Sequel.pg_inet_op('1.2.3.4') << '1.2.3.4/32').must_equal false
    @db.get(Sequel.pg_inet_op('1.2.3.4') << '1.2.2.0/24').must_equal false
    @db.get(Sequel.pg_inet_op('1.2.3.4').contained_by('1.2.3.0/24')).must_equal true
    @db.get(Sequel.pg_inet_op('1.2.3.4').contained_by('1.2.3.4/32')).must_equal false
    @db.get(Sequel.pg_inet_op('1.2.3.4').contained_by('1.2.2.0/24')).must_equal false

    @db.get(Sequel.pg_inet_op('1.2.3.4').contained_by_or_equals('1.2.3.0/24')).must_equal true
    @db.get(Sequel.pg_inet_op('1.2.3.4').contained_by_or_equals('1.2.3.4/32')).must_equal true
    @db.get(Sequel.pg_inet_op('1.2.3.4').contained_by_or_equals('1.2.2.0/24')).must_equal false

    @db.get(Sequel.pg_inet_op('1.2.3.0/24') >> '1.2.3.4').must_equal true
    @db.get(Sequel.pg_inet_op('1.2.3.0/24') >> '1.2.2.4').must_equal false
    @db.get(Sequel.pg_inet_op('1.2.3.0/24').contains('1.2.3.4')).must_equal true
    @db.get(Sequel.pg_inet_op('1.2.3.0/24').contains('1.2.2.4')).must_equal false

    @db.get(Sequel.pg_inet_op('1.2.3.0/24').contains_or_equals('1.2.3.4')).must_equal true
    @db.get(Sequel.pg_inet_op('1.2.3.0/24').contains_or_equals('1.2.2.4')).must_equal false
    @db.get(Sequel.pg_inet_op('1.2.3.0/24').contains_or_equals('1.2.3.0/24')).must_equal true

    @db.get(Sequel.pg_inet_op('1.2.3.0/32') + 1).must_equal IPAddr.new('1.2.3.1/32')
    @db.get(Sequel.pg_inet_op('1.2.3.1/32') - 1).must_equal IPAddr.new('1.2.3.0/32')
    @db.get(Sequel.pg_inet_op('1.2.3.1/32') - '1.2.3.0/32').must_equal 1
    @db.get(Sequel.pg_inet_op('1.2.3.0/32') & '1.2.0.4/32').must_equal IPAddr.new('1.2.0.0/32')
    @db.get(Sequel.pg_inet_op('1.2.0.0/32') | '0.0.3.4/32').must_equal IPAddr.new('1.2.3.4/32')
    @db.get(~Sequel.pg_inet_op('0.0.0.0/32')).must_equal IPAddr.new('255.255.255.255/32')

    @db.get(Sequel.pg_inet_op('1.2.3.4/24').abbrev).must_equal '1.2.3.4/24'
    @db.get(Sequel.pg_inet_op('1.2.3.4/24').broadcast).must_equal IPAddr.new('1.2.3.255/24')
    @db.get(Sequel.pg_inet_op('1.2.3.4/24').family).must_equal 4
    @db.get(Sequel.pg_inet_op('1.2.3.4/24').host).must_equal '1.2.3.4'
    @db.get(Sequel.pg_inet_op('1.2.3.4/24').hostmask).must_equal IPAddr.new('0.0.0.255/32')
    @db.get(Sequel.pg_inet_op('1.2.3.4/24').masklen).must_equal 24
    @db.get(Sequel.pg_inet_op('1.2.3.4/24').netmask).must_equal IPAddr.new('255.255.255.0/32')
    @db.get(Sequel.pg_inet_op('1.2.3.4/24').network).must_equal IPAddr.new('1.2.3.0/24')
    @db.get(Sequel.pg_inet_op('1.2.3.4/24').set_masklen(16)).must_equal IPAddr.new('1.2.3.4/16')
    @db.get(Sequel.pg_inet_op('1.2.3.4/32').text).must_equal '1.2.3.4/32'

    if @db.server_version >= 90400
      @db.get(Sequel.pg_inet_op('1.2.3.0/24').contains_or_contained_by('1.2.0.0/16')).must_equal true
      @db.get(Sequel.pg_inet_op('1.2.0.0/16').contains_or_contained_by('1.2.3.0/24')).must_equal true
      @db.get(Sequel.pg_inet_op('1.3.0.0/16').contains_or_contained_by('1.2.3.0/24')).must_equal false
    end
  end
end

describe 'PostgreSQL custom range types' do
  after do
    @db.run "DROP TYPE timerange";
  end

  it "should allow registration and use" do
    @db = DB
    @db.run "CREATE TYPE timerange AS range (subtype = time)"
    @db.register_range_type('timerange')
    r = Sequel::SQLTime.create(10, 11, 12)..Sequel::SQLTime.create(11, 12, 13)
    @db.get(Sequel.pg_range(r, :timerange)).to_range.must_equal r
  end
end if DB.server_version >= 90200 && DB.adapter_scheme == :postgres || DB.adapter_scheme == :jdbc

describe 'PostgreSQL range types' do
  before(:all) do
    @db = DB
    @ds = @db[:items]
    @map = {:i4=>'int4range', :i8=>'int8range', :n=>'numrange', :d=>'daterange', :t=>'tsrange', :tz=>'tstzrange'}
    @r = {:i4=>1...2, :i8=>2...3, :n=>BigDecimal.new('1.0')..BigDecimal.new('2.0'), :d=>Date.today...(Date.today+1), :t=>Time.local(2011, 1)..Time.local(2011, 2), :tz=>Time.local(2011, 1)..Time.local(2011, 2)}
    @ra = {}
    @pgr = {}
    @pgra = {}
    @r.each{|k, v| @ra[k] = Sequel.pg_array([v], @map[k])}
    @r.each{|k, v| @pgr[k] = Sequel.pg_range(v)}
    @r.each{|k, v| @pgra[k] = Sequel.pg_array([Sequel.pg_range(v)], @map[k])}
    @native = DB.adapter_scheme == :postgres || DB.adapter_scheme == :jdbc
  end
  after do
    @db.drop_table?(:items)
  end

  it 'insert and retrieve range type values' do
    @db.create_table!(:items){int4range :i4; int8range :i8; numrange :n; daterange :d; tsrange :t; tstzrange :tz}
    [@r, @pgr].each do |input|
      h = {}
      input.each{|k, v| h[k] = Sequel.cast(v, @map[k])}
      @ds.insert(h)
      @ds.count.must_equal 1
      if @native
        rs = @ds.all
        rs.first.each do |k, v|
          v.class.must_equal(Sequel::Postgres::PGRange)
          v.to_range.must_be_kind_of(Range)
          v.must_be :==, @r[k]
          v.to_range.must_equal @r[k]
        end
        @ds.delete
        @ds.insert(rs.first)
        @ds.all.must_equal rs
      end
      @ds.delete
    end
  end

  it 'insert and retrieve arrays of range type values' do
    @db.create_table!(:items){column :i4, 'int4range[]'; column :i8, 'int8range[]'; column :n, 'numrange[]'; column :d, 'daterange[]'; column :t, 'tsrange[]'; column :tz, 'tstzrange[]'}
    [@ra, @pgra].each do |input|
      @ds.insert(input)
      @ds.count.must_equal 1
      if @native
        rs = @ds.all
        rs.first.each do |k, v|
          v.class.must_equal(Sequel::Postgres::PGArray)
          v.to_a.must_be_kind_of(Array)
          v.first.class.must_equal(Sequel::Postgres::PGRange)
          v.first.to_range.must_be_kind_of(Range)
          v.must_be :==, @ra[k].to_a
          v.first.must_be :==, @r[k]
        end
        @ds.delete
        @ds.insert(rs.first)
        @ds.all.must_equal rs
      end
      @ds.delete
    end
  end

  it 'use range types in bound variables' do
    @db.create_table!(:items){int4range :i4; int8range :i8; numrange :n; daterange :d; tsrange :t; tstzrange :tz}
    h = {}
    @r.keys.each{|k| h[k] = :"$#{k}"}
    r2 = {}
    @r.each{|k, v| r2[k] = Range.new(v.begin, v.end+2)}
    @ds.call(:insert, @r, h)
    @ds.first.must_be :==, @r
    @ds.filter(h).call(:first, @r).must_be :==, @r
    @ds.filter(h).call(:first, @pgr).must_be :==, @r
    @ds.filter(h).call(:first, r2).must_be_nil
    @ds.filter(h).call(:delete, @r).must_equal 1

    @db.create_table!(:items){column :i4, 'int4range[]'; column :i8, 'int8range[]'; column :n, 'numrange[]'; column :d, 'daterange[]'; column :t, 'tsrange[]'; column :tz, 'tstzrange[]'}
    @r.each{|k, v| r2[k] = [Range.new(v.begin, v.end+2)]}
    @ds.call(:insert, @ra, h)
    @ds.filter(h).call(:first, @ra).each{|k, v| v.must_be :==, @ra[k].to_a}
    @ds.filter(h).call(:first, @pgra).each{|k, v| v.must_be :==, @ra[k].to_a}
    @ds.filter(h).call(:first, r2).must_be_nil
    @ds.filter(h).call(:delete, @ra).must_equal 1
  end if uses_pg_or_jdbc

  it 'with models' do
    @db.create_table!(:items){primary_key :id; int4range :i4; int8range :i8; numrange :n; daterange :d; tsrange :t; tstzrange :tz}
    c = Class.new(Sequel::Model(@db[:items]))
    c.plugin :pg_typecast_on_load, :i4, :i8, :n, :d, :t, :tz unless @native
    v = c.create(@r).values
    v.delete(:id)
    v.must_be :==, @r

    @db.create_table!(:items){primary_key :id; column :i4, 'int4range[]'; column :i8, 'int8range[]'; column :n, 'numrange[]'; column :d, 'daterange[]'; column :t, 'tsrange[]'; column :tz, 'tstzrange[]'}
    c = Class.new(Sequel::Model(@db[:items]))
    c.plugin :pg_typecast_on_load, :i4, :i8, :n, :d, :t, :tz unless @native
    v = c.create(@ra).values
    v.delete(:id)
    v.each{|k,v1| v1.must_be :==, @ra[k].to_a}
  end

  it 'works with current_datetime_timestamp extension' do
    ds = @db.dataset.extension(:current_datetime_timestamp)
    tsr = ds.get(Sequel.pg_range(ds.current_datetime..ds.current_datetime, :tstzrange))
    if @native
      tsr.begin.must_be_kind_of Time
      tsr.end.must_be_kind_of Time
    end
  end

  it 'operations/functions with pg_range_ops' do
    Sequel.extension :pg_range_ops

    @db.get(Sequel.pg_range(1..5, :int4range).op.contains(2..4)).must_equal true
    @db.get(Sequel.pg_range(1..5, :int4range).op.contains(3..6)).must_equal false
    @db.get(Sequel.pg_range(1..5, :int4range).op.contains(0..6)).must_equal false

    @db.get(Sequel.pg_range(1..5, :int4range).op.contained_by(0..6)).must_equal true
    @db.get(Sequel.pg_range(1..5, :int4range).op.contained_by(3..6)).must_equal false
    @db.get(Sequel.pg_range(1..5, :int4range).op.contained_by(2..4)).must_equal false

    @db.get(Sequel.pg_range(1..5, :int4range).op.overlaps(5..6)).must_equal true
    @db.get(Sequel.pg_range(1...5, :int4range).op.overlaps(5..6)).must_equal false
    
    @db.get(Sequel.pg_range(1..5, :int4range).op.left_of(6..10)).must_equal true
    @db.get(Sequel.pg_range(1..5, :int4range).op.left_of(5..10)).must_equal false
    @db.get(Sequel.pg_range(1..5, :int4range).op.left_of(-1..0)).must_equal false
    @db.get(Sequel.pg_range(1..5, :int4range).op.left_of(-1..3)).must_equal false

    @db.get(Sequel.pg_range(1..5, :int4range).op.right_of(6..10)).must_equal false
    @db.get(Sequel.pg_range(1..5, :int4range).op.right_of(5..10)).must_equal false
    @db.get(Sequel.pg_range(1..5, :int4range).op.right_of(-1..0)).must_equal true
    @db.get(Sequel.pg_range(1..5, :int4range).op.right_of(-1..3)).must_equal false

    @db.get(Sequel.pg_range(1..5, :int4range).op.ends_before(6..10)).must_equal true
    @db.get(Sequel.pg_range(1..5, :int4range).op.ends_before(5..10)).must_equal true
    @db.get(Sequel.pg_range(1..5, :int4range).op.ends_before(-1..0)).must_equal false
    @db.get(Sequel.pg_range(1..5, :int4range).op.ends_before(-1..3)).must_equal false
    @db.get(Sequel.pg_range(1..5, :int4range).op.ends_before(-1..7)).must_equal true

    @db.get(Sequel.pg_range(1..5, :int4range).op.starts_after(6..10)).must_equal false
    @db.get(Sequel.pg_range(1..5, :int4range).op.starts_after(5..10)).must_equal false
    @db.get(Sequel.pg_range(1..5, :int4range).op.starts_after(3..10)).must_equal false
    @db.get(Sequel.pg_range(1..5, :int4range).op.starts_after(-1..10)).must_equal true
    @db.get(Sequel.pg_range(1..5, :int4range).op.starts_after(-1..0)).must_equal true
    @db.get(Sequel.pg_range(1..5, :int4range).op.starts_after(-1..3)).must_equal true
    @db.get(Sequel.pg_range(1..5, :int4range).op.starts_after(-5..-1)).must_equal true

    @db.get(Sequel.pg_range(1..5, :int4range).op.adjacent_to(6..10)).must_equal true
    @db.get(Sequel.pg_range(1...5, :int4range).op.adjacent_to(6..10)).must_equal false

    @db.get((Sequel.pg_range(1..5, :int4range).op + (6..10)).adjacent_to(6..10)).must_equal false
    @db.get((Sequel.pg_range(1..5, :int4range).op + (6..10)).adjacent_to(11..20)).must_equal true

    @db.get((Sequel.pg_range(1..5, :int4range).op * (2..6)).adjacent_to(6..10)).must_equal true
    @db.get((Sequel.pg_range(1..4, :int4range).op * (2..6)).adjacent_to(6..10)).must_equal false

    @db.get((Sequel.pg_range(1..5, :int4range).op - (2..6)).adjacent_to(2..10)).must_equal true
    @db.get((Sequel.pg_range(0..4, :int4range).op - (3..6)).adjacent_to(4..10)).must_equal false

    @db.get(Sequel.pg_range(0..4, :int4range).op.lower).must_equal 0
    @db.get(Sequel.pg_range(0..4, :int4range).op.upper).must_equal 5

    @db.get(Sequel.pg_range(0..4, :int4range).op.isempty).must_equal false
    @db.get(Sequel::Postgres::PGRange.empty(:int4range).op.isempty).must_equal true

    @db.get(Sequel.pg_range(1..5, :numrange).op.lower_inc).must_equal true
    @db.get(Sequel::Postgres::PGRange.new(1, 5, :exclude_begin=>true, :db_type=>:numrange).op.lower_inc).must_equal false

    @db.get(Sequel.pg_range(1..5, :numrange).op.upper_inc).must_equal true
    @db.get(Sequel.pg_range(1...5, :numrange).op.upper_inc).must_equal false

    @db.get(Sequel::Postgres::PGRange.new(1, 5, :db_type=>:int4range).op.lower_inf).must_equal false
    @db.get(Sequel::Postgres::PGRange.new(nil, 5, :db_type=>:int4range).op.lower_inf).must_equal true

    @db.get(Sequel::Postgres::PGRange.new(1, 5, :db_type=>:int4range).op.upper_inf).must_equal false
    @db.get(Sequel::Postgres::PGRange.new(1, nil, :db_type=>:int4range).op.upper_inf).must_equal true
  end
end if DB.server_version >= 90200

describe 'PostgreSQL interval types' do
  before(:all) do
    @db = DB
    @ds = @db[:items]
    @native = DB.adapter_scheme == :postgres || DB.adapter_scheme == :jdbc
  end
  after(:all) do
    Sequel::Postgres::PG__TYPES.delete(1186) # SEQUEL5: Remove
  end
  after do
    @db.drop_table?(:items)
  end

  it 'insert and retrieve interval values' do
    @db.create_table!(:items){interval :i}
    [
      ['0', '00:00:00',  0, []],
      ['1', '00:00:01',  1, [[:seconds, 1]]],
      ['1 microsecond', '00:00:00.000001',  0.000001, [[:seconds, 0.000001]]],
      ['1 millisecond', '00:00:00.001',  0.001, [[:seconds, 0.001]]],
      ['1 second', '00:00:01', 1, [[:seconds, 1]]],
      ['1 minute', '00:01:00', 60, [[:seconds, 60]]],
      ['1 hour', '01:00:00', 3600, [[:seconds, 3600]]],
      ['123000 hours', '123000:00:00', 442800000, [[:seconds, 442800000]]],
      ['1 day', '1 day', 86400, [[:days, 1]]],
      ['1 week', '7 days', 86400*7, [[:days, 7]]],
      ['1 month', '1 mon', 86400*30, [[:months, 1]]],
      ['1 year', '1 year', 31557600, [[:years, 1]]],
      ['1 decade', '10 years', 31557600*10, [[:years, 10]]],
      ['1 century', '100 years', 31557600*100, [[:years, 100]]],
      ['1 millennium', '1000 years', 31557600*1000, [[:years, 1000]]],
      ['1 year 2 months 3 weeks 4 days 5 hours 6 minutes 7 seconds', '1 year 2 mons 25 days 05:06:07', 31557600 + 2*86400*30 + 3*86400*7 + 4*86400 + 5*3600 + 6*60 + 7, [[:years, 1], [:months, 2], [:days, 25], [:seconds, 18367]]],
      ['-1 year +2 months -3 weeks +4 days -5 hours +6 minutes -7 seconds', '-10 mons -17 days -04:54:07', -10*86400*30 - 3*86400*7 + 4*86400 - 5*3600 + 6*60 - 7, [[:months, -10], [:days, -17], [:seconds, -17647]]],
      ['+2 years -1 months +3 weeks -4 days +5 hours -6 minutes +7 seconds', '1 year 11 mons 17 days 04:54:07', 31557600 + 11*86400*30 + 3*86400*7 - 4*86400 + 5*3600 - 6*60 + 7, [[:years, 1], [:months, 11], [:days, 17], [:seconds, 17647]]],
    ].each do |instr, outstr, value, parts|
      @ds.insert(instr)
      @ds.count.must_equal 1
      if @native
        @ds.get(Sequel.cast(:i, String)).must_equal outstr
        rs = @ds.all
        rs.first[:i].is_a?(ActiveSupport::Duration).must_equal true
        rs.first[:i].must_equal ActiveSupport::Duration.new(value, parts)
        rs.first[:i].parts.sort_by{|k,v| k.to_s}.reject{|k,v| v == 0}.must_equal parts.sort_by{|k,v| k.to_s}
        @ds.delete
        @ds.insert(rs.first)
        @ds.all.must_equal rs
      end
      @ds.delete
    end
  end

  it 'insert and retrieve interval array values' do
    @db.create_table!(:items){column :i, 'interval[]'}
    @ds.insert(Sequel.pg_array(['1 year 2 months 3 weeks 4 days 5 hours 6 minutes 7 seconds'], 'interval'))
    @ds.count.must_equal 1
    if @native
      rs = @ds.all
      rs.first[:i].is_a?(Sequel::Postgres::PGArray).must_equal true
      rs.first[:i].first.is_a?(ActiveSupport::Duration).must_equal true
      rs.first[:i].first.must_equal ActiveSupport::Duration.new(31557600 + 2*86400*30 + 3*86400*7 + 4*86400 + 5*3600 + 6*60 + 7, [[:years, 1], [:months, 2], [:days, 25], [:seconds, 18367]])
      rs.first[:i].first.parts.sort_by{|k,v| k.to_s}.must_equal [[:years, 1], [:months, 2], [:days, 25], [:seconds, 18367]].sort_by{|k,v| k.to_s}
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs
    end
  end

  it 'use intervals in bound variables' do
    @db.create_table!(:items){interval :i}
    @ds.insert('1 year 2 months 3 weeks 4 days 5 hours 6 minutes 7 seconds')
    d = @ds.get(:i)
    @ds.delete

    @ds.call(:insert, {:i=>d}, {:i=>:$i})
    @ds.get(:i).must_equal d
    @ds.filter(:i=>:$i).call(:first, :i=>d).must_equal(:i=>d)
    @ds.filter(:i=>Sequel.cast(:$i, :interval)).call(:first, :i=>'0').must_be_nil
    @ds.filter(:i=>:$i).call(:delete, :i=>d).must_equal 1

    @db.create_table!(:items){column :i, 'interval[]'}
    @ds.call(:insert, {:i=>[d]}, {:i=>:$i})
    @ds.filter(:i=>:$i).call(:first, :i=>[d]).must_equal(:i=>[d])
    @ds.filter(:i=>:$i).call(:first, :i=>[]).must_be_nil
    @ds.filter(:i=>:$i).call(:delete, :i=>[d]).must_equal 1
  end if uses_pg_or_jdbc

  it 'with models' do
    @db.create_table!(:items) do
      primary_key :id
      interval :i
    end
    c = Class.new(Sequel::Model(@db[:items]))
    c.plugin :pg_typecast_on_load, :i, :c unless @native
    v = c.create(:i=>'1 year 2 mons 25 days 05:06:07').i
    v.is_a?(ActiveSupport::Duration).must_equal true
    v.must_equal ActiveSupport::Duration.new(31557600 + 2*86400*30 + 3*86400*7 + 4*86400 + 5*3600 + 6*60 + 7, [[:years, 1], [:months, 2], [:days, 25], [:seconds, 18367]])
    v.parts.sort_by{|k,_| k.to_s}.must_equal [[:years, 1], [:months, 2], [:days, 25], [:seconds, 18367]].sort_by{|k,_| k.to_s}
  end
end if (begin require 'active_support/duration'; require 'active_support/inflector'; require 'active_support/core_ext/string/inflections'; true; rescue LoadError; false end)

describe 'PostgreSQL row-valued/composite types' do
  before(:all) do
    @db = DB
    Sequel.extension :pg_array_ops, :pg_row_ops
    @ds = @db[:person]

    @db.create_table!(:address) do
      String :street
      String :city
      String :zip
    end
    @db.create_table!(:person) do
      Integer :id
      address :address
    end
    @db.create_table!(:company) do
      Integer :id
      column :employees, 'person[]'
    end
    oids = @db.conversion_procs.keys
    @db.register_row_type(:address)
    @db.register_row_type(Sequel.qualify(:public, :person))
    @db.register_row_type(Sequel[:public][:company])
    @new_oids = @db.conversion_procs.keys - oids

    @native = DB.adapter_scheme == :postgres || DB.adapter_scheme == :jdbc
  end
  after(:all) do
    @new_oids.each{|oid| @db.conversion_procs.delete(oid)}
    @db.row_types.clear
    @db.drop_table?(:company, :person, :address)
  end
  after do
    [:company, :person, :address].each{|t| @db[t].delete}
  end

  it 'insert and retrieve row types' do
    @ds.insert(:id=>1, :address=>Sequel.pg_row(['123 Sesame St', 'Somewhere', '12345']))
    @ds.count.must_equal 1
    if @native
      # Single row valued type
      rs = @ds.all
      v = rs.first[:address]
      v.class.superclass.must_equal(Sequel::Postgres::PGRow::HashRow)
      v.to_hash.must_be_kind_of(Hash)
      v.to_hash.must_equal(:street=>'123 Sesame St', :city=>'Somewhere', :zip=>'12345')
      @ds.delete
      @ds.insert(rs.first)
      @ds.all.must_equal rs

      # Nested row value type
      p = @ds.get(:person)
      p[:id].must_equal 1
      p[:address].must_equal v
    end
  end

  it 'insert and retrieve row types containing domains' do
    begin
      @db << "DROP DOMAIN IF EXISTS positive_integer CASCADE"
      @db << "CREATE DOMAIN positive_integer AS integer CHECK (VALUE > 0)"
      @db.create_table!(:domain_check) do
        positive_integer :id
      end
      @db.register_row_type(:domain_check)
      @db.get(@db.row_type(:domain_check, [1])).must_equal(:id=>1)
      @db.register_row_type(Sequel[:public][:domain_check])
      @db.get(@db.row_type(Sequel[:public][:domain_check], [1])).must_equal(:id=>1)
      @db.get(@db.row_type(Sequel.qualify(:public, :domain_check), [1])).must_equal(:id=>1)
    ensure
      @db.drop_table(:domain_check)
      @db << "DROP DOMAIN positive_integer"
    end
  end if DB.adapter_scheme == :postgres || DB.adapter_scheme == :jdbc

  it 'insert and retrieve arrays of row types' do
    @ds = @db[:company]
    @ds.insert(:id=>1, :employees=>Sequel.pg_array([@db.row_type(:person, [1, Sequel.pg_row(['123 Sesame St', 'Somewhere', '12345'])])]))
    @ds.count.must_equal 1
    if @native
      v = @ds.get(:company)
      v.class.superclass.must_equal(Sequel::Postgres::PGRow::HashRow)
      v.to_hash.must_be_kind_of(Hash)
      v[:id].must_equal 1
      employees = v[:employees]
      employees.class.must_equal(Sequel::Postgres::PGArray)
      employees.to_a.must_be_kind_of(Array)
      employees.must_equal [{:id=>1, :address=>{:street=>'123 Sesame St', :city=>'Somewhere', :zip=>'12345'}}]
      @ds.delete
      @ds.insert(v[:id], v[:employees])
      @ds.get(:company).must_equal v
    end
  end

  it 'use row types in bound variables' do
    @ds.call(:insert, {:address=>Sequel.pg_row(['123 Sesame St', 'Somewhere', '12345'])}, {:address=>:$address, :id=>1})
    @ds.get(:address).must_equal(:street=>'123 Sesame St', :city=>'Somewhere', :zip=>'12345')
    @ds.filter(:address=>Sequel.cast(:$address, :address)).call(:first, :address=>Sequel.pg_row(['123 Sesame St', 'Somewhere', '12345']))[:id].must_equal 1
    @ds.filter(:address=>Sequel.cast(:$address, :address)).call(:first, :address=>Sequel.pg_row(['123 Sesame St', 'Somewhere', '12356'])).must_be_nil

    @ds.delete
    @ds.call(:insert, {:address=>Sequel.pg_row([nil, nil, nil])}, {:address=>:$address, :id=>1})
    @ds.get(:address).must_equal(:street=>nil, :city=>nil, :zip=>nil)
  end if uses_pg_or_jdbc

  it 'use arrays of row types in bound variables' do
    @ds = @db[:company]
    @ds.call(:insert, {:employees=>Sequel.pg_array([@db.row_type(:person, [1, Sequel.pg_row(['123 Sesame St', 'Somewhere', '12345'])])])}, {:employees=>:$employees, :id=>1})
    @ds.get(:company).must_equal(:id=>1, :employees=>[{:id=>1, :address=>{:street=>'123 Sesame St', :city=>'Somewhere', :zip=>'12345'}}])
    @ds.filter(:employees=>Sequel.cast(:$employees, 'person[]')).call(:first, :employees=>Sequel.pg_array([@db.row_type(:person, [1, Sequel.pg_row(['123 Sesame St', 'Somewhere', '12345'])])]))[:id].must_equal 1
    @ds.filter(:employees=>Sequel.cast(:$employees, 'person[]')).call(:first, :employees=>Sequel.pg_array([@db.row_type(:person, [1, Sequel.pg_row(['123 Sesame St', 'Somewhere', '12356'])])])).must_be_nil

    @ds.delete
    @ds.call(:insert, {:employees=>Sequel.pg_array([@db.row_type(:person, [1, Sequel.pg_row([nil, nil, nil])])])}, {:employees=>:$employees, :id=>1})
    @ds.get(:employees).must_equal [{:address=>{:city=>nil, :zip=>nil, :street=>nil}, :id=>1}]
  end if uses_pg_or_jdbc

  it 'operations/functions with pg_row_ops' do
    @ds.insert(:id=>1, :address=>Sequel.pg_row(['123 Sesame St', 'Somewhere', '12345']))
    @ds.get(Sequel.pg_row(:address)[:street]).must_equal '123 Sesame St'
    @ds.get(Sequel.pg_row(:address)[:city]).must_equal 'Somewhere'
    @ds.get(Sequel.pg_row(:address)[:zip]).must_equal '12345'

    @ds = @db[:company]
    @ds.insert(:id=>1, :employees=>Sequel.pg_array([@db.row_type(:person, [1, Sequel.pg_row(['123 Sesame St', 'Somewhere', '12345'])])]))
    @ds.get(Sequel.pg_row(:company)[:id]).must_equal 1
    if @native
      @ds.get(Sequel.pg_row(:company)[:employees]).must_equal [{:id=>1, :address=>{:street=>'123 Sesame St', :city=>'Somewhere', :zip=>'12345'}}]
      @ds.get(Sequel.pg_row(:company)[:employees][1]).must_equal(:id=>1, :address=>{:street=>'123 Sesame St', :city=>'Somewhere', :zip=>'12345'})
      @ds.get(Sequel.pg_row(:company)[:employees][1][:address]).must_equal(:street=>'123 Sesame St', :city=>'Somewhere', :zip=>'12345')
    end
    @ds.get(Sequel.pg_row(:company)[:employees][1][:id]).must_equal 1
    @ds.get(Sequel.pg_row(:company)[:employees][1][:address][:street]).must_equal '123 Sesame St'
    @ds.get(Sequel.pg_row(:company)[:employees][1][:address][:city]).must_equal 'Somewhere'
    @ds.get(Sequel.pg_row(:company)[:employees][1][:address][:zip]).must_equal '12345'
  end

  describe "#splat and #*" do
    before(:all) do
      @db.create_table!(:a){Integer :a}
      @db.create_table!(:b){a :b; Integer :a}
      @db.register_row_type(:a)
      @db.register_row_type(:b)
      @db[:b].insert(:a=>1, :b=>@db.row_type(:a, [2]))
    end
    after(:all) do
      @db.drop_table?(:b, :a)
    end

    it "splat should reference the table type" do
      @db[:b].select(:a).first.must_equal(:a=>1)
      @db[:b].select(Sequel[:b][:a]).first.must_equal(:a=>1)
      @db[:b].select(Sequel.pg_row(:b)[:a]).first.must_equal(:a=>2)
      @db[:b].select(Sequel.pg_row(:b).splat[:a]).first.must_equal(:a=>1)

      if @native
        @db[:b].select(:b).first.must_equal(:b=>{:a=>2})
        @db[:b].select(Sequel.pg_row(:b).splat).first.must_equal(:a=>1, :b=>{:a=>2})
        @db[:b].select(Sequel.pg_row(:b).splat(:b)).first.must_equal(:b=>{:a=>1, :b=>{:a=>2}})
      end
    end

    it "* should expand the table type into separate columns" do
      ds = @db[:b].select(Sequel.pg_row(:b).splat(:b)).from_self(:alias=>:t)
      if @native
        ds.first.must_equal(:b=>{:a=>1, :b=>{:a=>2}})
        ds.select(Sequel.pg_row(:b).*).first.must_equal(:a=>1, :b=>{:a=>2})
        ds.select(Sequel.pg_row(:b)[:b]).first.must_equal(:b=>{:a=>2})
        ds.select(Sequel.pg_row(Sequel[:t][:b]).*).first.must_equal(:a=>1, :b=>{:a=>2})
        ds.select(Sequel.pg_row(Sequel[:t][:b])[:b]).first.must_equal(:b=>{:a=>2})
      end
      ds.select(Sequel.pg_row(:b)[:a]).first.must_equal(:a=>1)
      ds.select(Sequel.pg_row(Sequel[:t][:b])[:a]).first.must_equal(:a=>1)
    end
  end

  describe "with models" do
    before(:all) do
      class Address < Sequel::Model(:address)
        plugin :pg_row
      end
      class Person < Sequel::Model(:person)
        plugin :pg_row
      end
      class Company < Sequel::Model(:company)
        plugin :pg_row
      end
      @a = Address.new(:street=>'123 Sesame St', :city=>'Somewhere', :zip=>'12345')
      @es = Sequel.pg_array([Person.new(:id=>1, :address=>@a)])
    end
    after(:all) do
      Object.send(:remove_const, :Address) rescue nil
      Object.send(:remove_const, :Person) rescue nil
      Object.send(:remove_const, :Company) rescue nil
    end

    it 'insert and retrieve row types as model objects' do
      @ds.insert(:id=>1, :address=>@a)
      @ds.count.must_equal 1
      if @native
        # Single row valued type
        rs = @ds.all
        v = rs.first[:address]
        v.must_be_kind_of(Address)
        v.must_equal @a
        @ds.delete
        @ds.insert(rs.first)
        @ds.all.must_equal rs

        # Nested row value type
        p = @ds.get(:person)
        p.must_be_kind_of(Person)
        p.id.must_equal 1
        p.address.must_be_kind_of(Address)
        p.address.must_equal @a
      end
    end

    it 'insert and retrieve arrays of row types as model objects' do
      @ds = @db[:company]
      @ds.insert(:id=>1, :employees=>@es)
      @ds.count.must_equal 1
      if @native
        v = @ds.get(:company)
        v.must_be_kind_of(Company)
        v.id.must_equal 1
        employees = v[:employees]
        employees.class.must_equal(Sequel::Postgres::PGArray)
        employees.to_a.must_be_kind_of(Array)
        employees.must_equal @es
        @ds.delete
        @ds.insert(v.id, v.employees)
        @ds.get(:company).must_equal v
      end
    end

    it 'use model objects in bound variables' do
      @ds.call(:insert, {:address=>@a}, {:address=>:$address, :id=>1})
      @ds.get(:address).must_equal @a
      @ds.filter(:address=>Sequel.cast(:$address, :address)).call(:first, :address=>@a)[:id].must_equal 1
      @ds.filter(:address=>Sequel.cast(:$address, :address)).call(:first, :address=>Address.new(:street=>'123 Sesame St', :city=>'Somewhere', :zip=>'12356')).must_be_nil
    end if uses_pg_or_jdbc

    it 'use arrays of model objects in bound variables' do
      @ds = @db[:company]
      @ds.call(:insert, {:employees=>@es}, {:employees=>:$employees, :id=>1})
      @ds.get(:company).must_equal Company.new(:id=>1, :employees=>@es)
      @ds.filter(:employees=>Sequel.cast(:$employees, 'person[]')).call(:first, :employees=>@es)[:id].must_equal 1
      @ds.filter(:employees=>Sequel.cast(:$employees, 'person[]')).call(:first, :employees=>Sequel.pg_array([@db.row_type(:person, [1, Sequel.pg_row(['123 Sesame St', 'Somewhere', '12356'])])])).must_be_nil
    end if uses_pg_or_jdbc

    it 'model typecasting' do
      Person.plugin :pg_typecast_on_load, :address unless @native
      a = Address.new(:street=>'123 Sesame St', :city=>'Somewhere', :zip=>'12345')
      o = Person.create(:id=>1, :address=>['123 Sesame St', 'Somewhere', '12345'])
      o.address.must_equal a
      o = Person.create(:id=>1, :address=>{:street=>'123 Sesame St', :city=>'Somewhere', :zip=>'12345'})
      o.address.must_equal a
      o = Person.create(:id=>1, :address=>a)
      o.address.must_equal a

      Company.plugin :pg_typecast_on_load, :employees unless @native
      e = Person.new(:id=>1, :address=>a)
      o = Company.create(:id=>1, :employees=>[{:id=>1, :address=>{:street=>'123 Sesame St', :city=>'Somewhere', :zip=>'12345'}}])
      o.employees.must_equal [e]
      o = Company.create(:id=>1, :employees=>[e])
      o.employees.must_equal [e]
    end
  end
end

describe 'pg_static_cache_updater extension' do
  before(:all) do
    @db = DB
    @db.extension :pg_static_cache_updater
    @db.drop_function(@db.default_static_cache_update_name, :cascade=>true, :if_exists=>true)
    @db.create_static_cache_update_function

    @db.create_table!(:things) do
      primary_key :id
      String :name
    end
    @Thing = Class.new(Sequel::Model(:things))
    @Thing.plugin :static_cache
    @db.create_static_cache_update_trigger(:things)
  end
  after(:all) do
    @db.drop_table(:things)
    @db.drop_function(@db.default_static_cache_update_name)
  end

  it "should reload model static cache when underlying table changes" do
    @Thing.all.must_equal []
    q = Queue.new
    q1 = Queue.new

    @db.listen_for_static_cache_updates(@Thing, :timeout=>0, :loop=>proc{q.push(nil); q1.pop.call}, :before_thread_exit=>proc{q.push(nil)})

    q.pop
    q1.push(proc{@db[:things].insert(1, 'A')})
    q.pop
    @Thing.all.must_equal [@Thing.load(:id=>1, :name=>'A')]

    q1.push(proc{@db[:things].update(:name=>'B')})
    q.pop
    @Thing.all.must_equal [@Thing.load(:id=>1, :name=>'B')]

    q1.push(proc{@db[:things].delete})
    q.pop
    @Thing.all.must_equal []

    q1.push(proc{throw :stop})
    q.pop
  end
end if uses_pg && DB.server_version >= 90000

describe 'PostgreSQL enum types' do
  before do
    @db = DB
    @db.create_enum(:test_enum, %w'a b c d')

    @db.create_table!(:test_enumt) do
      test_enum  :t
    end
  end
  after do
    @db.drop_table?(:test_enumt)
    @db.drop_enum(:test_enum)
  end

  it "should return correct entries in the schema" do
    s = @db.schema(:test_enumt)
    s.first.last[:type].must_equal :enum
    s.first.last[:enum_values].must_equal %w'a b c d'
  end

  it "should add array parsers for enum values" do
    @db.get(Sequel.pg_array(%w'a b', :test_enum)).must_equal %w'a b'
  end if DB.adapter_scheme == :postgres || DB.adapter_scheme == :jdbc

  it "should set up model typecasting correctly" do
    c = Class.new(Sequel::Model(:test_enumt))
    o = c.new
    o.t = :a
    o.t.must_equal 'a'
  end

  it "should add values to existing enum" do
    @db.add_enum_value(:test_enum, 'e')
    @db.add_enum_value(:test_enum, 'f', :after=>'a')
    @db.add_enum_value(:test_enum, 'g', :before=>'b')
    @db.add_enum_value(:test_enum, 'a', :if_not_exists=>true) if @db.server_version >= 90300
    @db.schema(:test_enumt, :reload=>true).first.last[:enum_values].must_equal %w'a f g b c d e'
  end if DB.server_version >= 90100
end

describe "PostgreSQL stored procedures for datasets" do
  before do
    require 'sequel/adapters/utils/stored_procedures'

    @db = DB
    @db.create_table!(:items) do
      primary_key :id
      integer :numb
    end
    @db.execute(<<-SQL)
      create or replace function insert_item(numb bigint)
      returns items.id%type
      as $$
        declare
          l_id items.id%type;
        begin
          l_id := 1;

          insert into items(id, numb) values(l_id, numb);

          return l_id;
        end;
      $$ language plpgsql;
    SQL

    @ds = @db[:items]
  end

  after do
    @db.drop_function("insert_item", :if_exists=>true)
    @db.drop_table?(:items)
  end

  it "should correctly call stored procedure for inserting record" do
    result = @ds.call_sproc(:insert, :insert_item, 100)
    result.must_be_nil

    @ds.call(:all).must_equal [{:id=>1, :numb=>100}]
  end
end if DB.adapter_scheme == :jdbc
