# coding: utf-8 import datetime from sqlalchemy import and_ from sqlalchemy import cast from sqlalchemy import Column from sqlalchemy import column from sqlalchemy import Date from sqlalchemy import DateTime from sqlalchemy import exc from sqlalchemy import extract from sqlalchemy import Float from sqlalchemy import ForeignKey from sqlalchemy import func from sqlalchemy import Integer from sqlalchemy import literal from sqlalchemy import literal_column from sqlalchemy import MetaData from sqlalchemy import or_ from sqlalchemy import select from sqlalchemy import Sequence from sqlalchemy import String from sqlalchemy import Table from sqlalchemy import testing from sqlalchemy import text from sqlalchemy import Time from sqlalchemy import true from sqlalchemy import tuple_ from sqlalchemy.dialects import postgresql from sqlalchemy.dialects.postgresql import JSONB from sqlalchemy.testing import assert_raises from sqlalchemy.testing import AssertsCompiledSQL from sqlalchemy.testing import AssertsExecutionResults from sqlalchemy.testing import engines from sqlalchemy.testing import eq_ from sqlalchemy.testing import expect_warnings from sqlalchemy.testing import fixtures from sqlalchemy.testing.assertsql import CursorSQL from sqlalchemy.testing.assertsql import DialectSQL class InsertTest(fixtures.TestBase, AssertsExecutionResults): __only_on__ = "postgresql" __backend__ = True def setup_test(self): self.metadata = MetaData() def teardown_test(self): with testing.db.begin() as conn: self.metadata.drop_all(conn) @testing.combinations((False,), (True,)) def test_foreignkey_missing_insert(self, implicit_returning): engine = engines.testing_engine( options={"implicit_returning": implicit_returning} ) Table("t1", self.metadata, Column("id", Integer, primary_key=True)) t2 = Table( "t2", self.metadata, Column("id", Integer, ForeignKey("t1.id"), primary_key=True), ) self.metadata.create_all(engine) # want to ensure that "null value in column "id" violates not- # null constraint" is raised (IntegrityError on psycoopg2, but # ProgrammingError on pg8000), and not "ProgrammingError: # (ProgrammingError) relationship "t2_id_seq" does not exist". # the latter corresponds to autoincrement behavior, which is not # the case here due to the foreign key. with expect_warnings(".*has no Python-side or server-side default.*"): with engine.connect() as conn: conn.begin() assert_raises( (exc.IntegrityError, exc.ProgrammingError), conn.execute, t2.insert(), ) def test_sequence_insert(self): table = Table( "testtable", self.metadata, Column("id", Integer, Sequence("my_seq"), primary_key=True), Column("data", String(30)), ) self.metadata.create_all(testing.db) self._assert_data_with_sequence(table, "my_seq") @testing.requires.returning def test_sequence_returning_insert(self): table = Table( "testtable", self.metadata, Column("id", Integer, Sequence("my_seq"), primary_key=True), Column("data", String(30)), ) self.metadata.create_all(testing.db) self._assert_data_with_sequence_returning(table, "my_seq") def test_opt_sequence_insert(self): table = Table( "testtable", self.metadata, Column( "id", Integer, Sequence("my_seq", optional=True), primary_key=True, ), Column("data", String(30)), ) self.metadata.create_all(testing.db) self._assert_data_autoincrement(table) @testing.requires.returning def test_opt_sequence_returning_insert(self): table = Table( "testtable", self.metadata, Column( "id", Integer, Sequence("my_seq", optional=True), primary_key=True, ), Column("data", String(30)), ) self.metadata.create_all(testing.db) self._assert_data_autoincrement_returning(table) def test_autoincrement_insert(self): table = Table( "testtable", self.metadata, Column("id", Integer, primary_key=True), Column("data", String(30)), ) self.metadata.create_all(testing.db) self._assert_data_autoincrement(table) @testing.requires.returning def test_autoincrement_returning_insert(self): table = Table( "testtable", self.metadata, Column("id", Integer, primary_key=True), Column("data", String(30)), ) self.metadata.create_all(testing.db) self._assert_data_autoincrement_returning(table) def test_noautoincrement_insert(self): table = Table( "testtable", self.metadata, Column("id", Integer, primary_key=True, autoincrement=False), Column("data", String(30)), ) self.metadata.create_all(testing.db) self._assert_data_noautoincrement(table) def _assert_data_autoincrement(self, table): engine = engines.testing_engine(options={"implicit_returning": False}) with self.sql_execution_asserter(engine) as asserter: with engine.begin() as conn: # execute with explicit id r = conn.execute(table.insert(), {"id": 30, "data": "d1"}) eq_(r.inserted_primary_key, (30,)) # execute with prefetch id r = conn.execute(table.insert(), {"data": "d2"}) eq_(r.inserted_primary_key, (1,)) # executemany with explicit ids conn.execute( table.insert(), [ {"id": 31, "data": "d3"}, {"id": 32, "data": "d4"}, ], ) # executemany, uses SERIAL conn.execute(table.insert(), [{"data": "d5"}, {"data": "d6"}]) # single execute, explicit id, inline conn.execute(table.insert().inline(), {"id": 33, "data": "d7"}) # single execute, inline, uses SERIAL conn.execute(table.insert().inline(), {"data": "d8"}) asserter.assert_( DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", {"id": 30, "data": "d1"}, ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", {"id": 1, "data": "d2"}, ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", [{"id": 31, "data": "d3"}, {"id": 32, "data": "d4"}], ), DialectSQL( "INSERT INTO testtable (data) VALUES (:data)", [{"data": "d5"}, {"data": "d6"}], ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", [{"id": 33, "data": "d7"}], ), DialectSQL( "INSERT INTO testtable (data) VALUES (:data)", [{"data": "d8"}] ), ) with engine.begin() as conn: eq_( conn.execute(table.select()).fetchall(), [ (30, "d1"), (1, "d2"), (31, "d3"), (32, "d4"), (2, "d5"), (3, "d6"), (33, "d7"), (4, "d8"), ], ) conn.execute(table.delete()) # test the same series of events using a reflected version of # the table m2 = MetaData() table = Table(table.name, m2, autoload_with=engine) with self.sql_execution_asserter(engine) as asserter: with engine.begin() as conn: conn.execute(table.insert(), {"id": 30, "data": "d1"}) r = conn.execute(table.insert(), {"data": "d2"}) eq_(r.inserted_primary_key, (5,)) conn.execute( table.insert(), [ {"id": 31, "data": "d3"}, {"id": 32, "data": "d4"}, ], ) conn.execute(table.insert(), [{"data": "d5"}, {"data": "d6"}]) conn.execute(table.insert().inline(), {"id": 33, "data": "d7"}) conn.execute(table.insert().inline(), {"data": "d8"}) asserter.assert_( DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", {"id": 30, "data": "d1"}, ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", {"id": 5, "data": "d2"}, ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", [{"id": 31, "data": "d3"}, {"id": 32, "data": "d4"}], ), DialectSQL( "INSERT INTO testtable (data) VALUES (:data)", [{"data": "d5"}, {"data": "d6"}], ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", [{"id": 33, "data": "d7"}], ), DialectSQL( "INSERT INTO testtable (data) VALUES (:data)", [{"data": "d8"}] ), ) with engine.begin() as conn: eq_( conn.execute(table.select()).fetchall(), [ (30, "d1"), (5, "d2"), (31, "d3"), (32, "d4"), (6, "d5"), (7, "d6"), (33, "d7"), (8, "d8"), ], ) conn.execute(table.delete()) def _assert_data_autoincrement_returning(self, table): engine = engines.testing_engine(options={"implicit_returning": True}) with self.sql_execution_asserter(engine) as asserter: with engine.begin() as conn: # execute with explicit id r = conn.execute(table.insert(), {"id": 30, "data": "d1"}) eq_(r.inserted_primary_key, (30,)) # execute with prefetch id r = conn.execute(table.insert(), {"data": "d2"}) eq_(r.inserted_primary_key, (1,)) # executemany with explicit ids conn.execute( table.insert(), [ {"id": 31, "data": "d3"}, {"id": 32, "data": "d4"}, ], ) # executemany, uses SERIAL conn.execute(table.insert(), [{"data": "d5"}, {"data": "d6"}]) # single execute, explicit id, inline conn.execute(table.insert().inline(), {"id": 33, "data": "d7"}) # single execute, inline, uses SERIAL conn.execute(table.insert().inline(), {"data": "d8"}) asserter.assert_( DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", {"id": 30, "data": "d1"}, ), DialectSQL( "INSERT INTO testtable (data) VALUES (:data) RETURNING " "testtable.id", {"data": "d2"}, ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", [{"id": 31, "data": "d3"}, {"id": 32, "data": "d4"}], ), DialectSQL( "INSERT INTO testtable (data) VALUES (:data)", [{"data": "d5"}, {"data": "d6"}], ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", [{"id": 33, "data": "d7"}], ), DialectSQL( "INSERT INTO testtable (data) VALUES (:data)", [{"data": "d8"}] ), ) with engine.begin() as conn: eq_( conn.execute(table.select()).fetchall(), [ (30, "d1"), (1, "d2"), (31, "d3"), (32, "d4"), (2, "d5"), (3, "d6"), (33, "d7"), (4, "d8"), ], ) conn.execute(table.delete()) # test the same series of events using a reflected version of # the table m2 = MetaData() table = Table(table.name, m2, autoload_with=engine) with self.sql_execution_asserter(engine) as asserter: with engine.begin() as conn: conn.execute(table.insert(), {"id": 30, "data": "d1"}) r = conn.execute(table.insert(), {"data": "d2"}) eq_(r.inserted_primary_key, (5,)) conn.execute( table.insert(), [ {"id": 31, "data": "d3"}, {"id": 32, "data": "d4"}, ], ) conn.execute(table.insert(), [{"data": "d5"}, {"data": "d6"}]) conn.execute(table.insert().inline(), {"id": 33, "data": "d7"}) conn.execute(table.insert().inline(), {"data": "d8"}) asserter.assert_( DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", {"id": 30, "data": "d1"}, ), DialectSQL( "INSERT INTO testtable (data) VALUES (:data) RETURNING " "testtable.id", {"data": "d2"}, ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", [{"id": 31, "data": "d3"}, {"id": 32, "data": "d4"}], ), DialectSQL( "INSERT INTO testtable (data) VALUES (:data)", [{"data": "d5"}, {"data": "d6"}], ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", [{"id": 33, "data": "d7"}], ), DialectSQL( "INSERT INTO testtable (data) VALUES (:data)", [{"data": "d8"}] ), ) with engine.begin() as conn: eq_( conn.execute(table.select()).fetchall(), [ (30, "d1"), (5, "d2"), (31, "d3"), (32, "d4"), (6, "d5"), (7, "d6"), (33, "d7"), (8, "d8"), ], ) conn.execute(table.delete()) def _assert_data_with_sequence(self, table, seqname): engine = engines.testing_engine(options={"implicit_returning": False}) with self.sql_execution_asserter(engine) as asserter: with engine.begin() as conn: conn.execute(table.insert(), {"id": 30, "data": "d1"}) conn.execute(table.insert(), {"data": "d2"}) conn.execute( table.insert(), [ {"id": 31, "data": "d3"}, {"id": 32, "data": "d4"}, ], ) conn.execute(table.insert(), [{"data": "d5"}, {"data": "d6"}]) conn.execute(table.insert().inline(), {"id": 33, "data": "d7"}) conn.execute(table.insert().inline(), {"data": "d8"}) asserter.assert_( DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", {"id": 30, "data": "d1"}, ), CursorSQL("select nextval('my_seq')", consume_statement=False), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", {"id": 1, "data": "d2"}, ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", [{"id": 31, "data": "d3"}, {"id": 32, "data": "d4"}], ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (nextval('%s'), " ":data)" % seqname, [{"data": "d5"}, {"data": "d6"}], ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", [{"id": 33, "data": "d7"}], ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (nextval('%s'), " ":data)" % seqname, [{"data": "d8"}], ), ) with engine.begin() as conn: eq_( conn.execute(table.select()).fetchall(), [ (30, "d1"), (1, "d2"), (31, "d3"), (32, "d4"), (2, "d5"), (3, "d6"), (33, "d7"), (4, "d8"), ], ) # cant test reflection here since the Sequence must be # explicitly specified def _assert_data_with_sequence_returning(self, table, seqname): engine = engines.testing_engine(options={"implicit_returning": True}) with self.sql_execution_asserter(engine) as asserter: with engine.begin() as conn: conn.execute(table.insert(), {"id": 30, "data": "d1"}) conn.execute(table.insert(), {"data": "d2"}) conn.execute( table.insert(), [ {"id": 31, "data": "d3"}, {"id": 32, "data": "d4"}, ], ) conn.execute(table.insert(), [{"data": "d5"}, {"data": "d6"}]) conn.execute(table.insert().inline(), {"id": 33, "data": "d7"}) conn.execute(table.insert().inline(), {"data": "d8"}) asserter.assert_( DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", {"id": 30, "data": "d1"}, ), DialectSQL( "INSERT INTO testtable (id, data) VALUES " "(nextval('my_seq'), :data) RETURNING testtable.id", {"data": "d2"}, ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", [{"id": 31, "data": "d3"}, {"id": 32, "data": "d4"}], ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (nextval('%s'), " ":data)" % seqname, [{"data": "d5"}, {"data": "d6"}], ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (:id, :data)", [{"id": 33, "data": "d7"}], ), DialectSQL( "INSERT INTO testtable (id, data) VALUES (nextval('%s'), " ":data)" % seqname, [{"data": "d8"}], ), ) with engine.begin() as conn: eq_( conn.execute(table.select()).fetchall(), [ (30, "d1"), (1, "d2"), (31, "d3"), (32, "d4"), (2, "d5"), (3, "d6"), (33, "d7"), (4, "d8"), ], ) # cant test reflection here since the Sequence must be # explicitly specified def _assert_data_noautoincrement(self, table): engine = engines.testing_engine(options={"implicit_returning": False}) # turning off the cache because we are checking for compile-time # warnings engine = engine.execution_options(compiled_cache=None) with engine.begin() as conn: conn.execute(table.insert(), {"id": 30, "data": "d1"}) with engine.connect() as conn: trans = conn.begin() with expect_warnings( ".*has no Python-side or server-side default.*" ): assert_raises( (exc.IntegrityError, exc.ProgrammingError), conn.execute, table.insert(), {"data": "d2"}, ) trans.rollback() with engine.connect() as conn: trans = conn.begin() with expect_warnings( ".*has no Python-side or server-side default.*" ): assert_raises( (exc.IntegrityError, exc.ProgrammingError), conn.execute, table.insert(), [{"data": "d2"}, {"data": "d3"}], ) trans.rollback() with engine.connect() as conn: trans = conn.begin() with expect_warnings( ".*has no Python-side or server-side default.*" ): assert_raises( (exc.IntegrityError, exc.ProgrammingError), conn.execute, table.insert(), {"data": "d2"}, ) trans.rollback() with engine.connect() as conn: trans = conn.begin() with expect_warnings( ".*has no Python-side or server-side default.*" ): assert_raises( (exc.IntegrityError, exc.ProgrammingError), conn.execute, table.insert(), [{"data": "d2"}, {"data": "d3"}], ) trans.rollback() with engine.begin() as conn: conn.execute( table.insert(), [{"id": 31, "data": "d2"}, {"id": 32, "data": "d3"}], ) conn.execute(table.insert().inline(), {"id": 33, "data": "d4"}) eq_( conn.execute(table.select()).fetchall(), [(30, "d1"), (31, "d2"), (32, "d3"), (33, "d4")], ) conn.execute(table.delete()) # test the same series of events using a reflected version of # the table m2 = MetaData() table = Table(table.name, m2, autoload_with=engine) with engine.begin() as conn: conn.execute(table.insert(), {"id": 30, "data": "d1"}) with engine.connect() as conn: trans = conn.begin() with expect_warnings( ".*has no Python-side or server-side default.*" ): assert_raises( (exc.IntegrityError, exc.ProgrammingError), conn.execute, table.insert(), {"data": "d2"}, ) with engine.connect() as conn: trans = conn.begin() with expect_warnings( ".*has no Python-side or server-side default.*" ): assert_raises( (exc.IntegrityError, exc.ProgrammingError), conn.execute, table.insert(), [{"data": "d2"}, {"data": "d3"}], ) trans.rollback() with engine.begin() as conn: conn.execute( table.insert(), [{"id": 31, "data": "d2"}, {"id": 32, "data": "d3"}], ) conn.execute(table.insert().inline(), {"id": 33, "data": "d4"}) eq_( conn.execute(table.select()).fetchall(), [(30, "d1"), (31, "d2"), (32, "d3"), (33, "d4")], ) class MatchTest(fixtures.TablesTest, AssertsCompiledSQL): __only_on__ = "postgresql >= 8.3" __backend__ = True @classmethod def define_tables(cls, metadata): Table( "cattable", metadata, Column("id", Integer, primary_key=True), Column("description", String(50)), ) Table( "matchtable", metadata, Column("id", Integer, primary_key=True), Column("title", String(200)), Column("category_id", Integer, ForeignKey("cattable.id")), ) @classmethod def insert_data(cls, connection): cattable, matchtable = cls.tables("cattable", "matchtable") connection.execute( cattable.insert(), [ {"id": 1, "description": "Python"}, {"id": 2, "description": "Ruby"}, ], ) connection.execute( matchtable.insert(), [ { "id": 1, "title": "Agile Web Development with Rails", "category_id": 2, }, {"id": 2, "title": "Dive Into Python", "category_id": 1}, { "id": 3, "title": "Programming Matz's Ruby", "category_id": 2, }, { "id": 4, "title": "The Definitive Guide to Django", "category_id": 1, }, {"id": 5, "title": "Python in a Nutshell", "category_id": 1}, ], ) @testing.requires.pyformat_paramstyle def test_expression_pyformat(self): matchtable = self.tables.matchtable self.assert_compile( matchtable.c.title.match("somstr"), "matchtable.title @@ to_tsquery(%(title_1)s" ")", ) @testing.requires.format_paramstyle def test_expression_positional(self): matchtable = self.tables.matchtable self.assert_compile( matchtable.c.title.match("somstr"), "matchtable.title @@ to_tsquery(%s)", ) def test_simple_match(self, connection): matchtable = self.tables.matchtable results = connection.execute( matchtable.select() .where(matchtable.c.title.match("python")) .order_by(matchtable.c.id) ).fetchall() eq_([2, 5], [r.id for r in results]) def test_not_match(self, connection): matchtable = self.tables.matchtable results = connection.execute( matchtable.select() .where(~matchtable.c.title.match("python")) .order_by(matchtable.c.id) ).fetchall() eq_([1, 3, 4], [r.id for r in results]) def test_simple_match_with_apostrophe(self, connection): matchtable = self.tables.matchtable results = connection.execute( matchtable.select().where(matchtable.c.title.match("Matz's")) ).fetchall() eq_([3], [r.id for r in results]) def test_simple_derivative_match(self, connection): matchtable = self.tables.matchtable results = connection.execute( matchtable.select().where(matchtable.c.title.match("nutshells")) ).fetchall() eq_([5], [r.id for r in results]) def test_or_match(self, connection): matchtable = self.tables.matchtable results1 = connection.execute( matchtable.select() .where( or_( matchtable.c.title.match("nutshells"), matchtable.c.title.match("rubies"), ) ) .order_by(matchtable.c.id) ).fetchall() eq_([3, 5], [r.id for r in results1]) results2 = connection.execute( matchtable.select() .where(matchtable.c.title.match("nutshells | rubies")) .order_by(matchtable.c.id) ).fetchall() eq_([3, 5], [r.id for r in results2]) def test_and_match(self, connection): matchtable = self.tables.matchtable results1 = connection.execute( matchtable.select().where( and_( matchtable.c.title.match("python"), matchtable.c.title.match("nutshells"), ) ) ).fetchall() eq_([5], [r.id for r in results1]) results2 = connection.execute( matchtable.select().where( matchtable.c.title.match("python & nutshells") ) ).fetchall() eq_([5], [r.id for r in results2]) def test_match_across_joins(self, connection): cattable, matchtable = self.tables("cattable", "matchtable") results = connection.execute( matchtable.select() .where( and_( cattable.c.id == matchtable.c.category_id, or_( cattable.c.description.match("Ruby"), matchtable.c.title.match("nutshells"), ), ) ) .order_by(matchtable.c.id) ).fetchall() eq_([1, 3, 5], [r.id for r in results]) class TupleTest(fixtures.TestBase): __only_on__ = "postgresql" __backend__ = True def test_tuple_containment(self, connection): for test, exp in [ ([("a", "b")], True), ([("a", "c")], False), ([("f", "q"), ("a", "b")], True), ([("f", "q"), ("a", "c")], False), ]: eq_( connection.execute( select( tuple_( literal_column("'a'"), literal_column("'b'") ).in_( [ tuple_( *[ literal_column("'%s'" % letter) for letter in elem ] ) for elem in test ] ) ) ).scalar(), exp, ) class ExtractTest(fixtures.TablesTest): """The rationale behind this test is that for many years we've had a system of embedding type casts into the expressions rendered by visit_extract() on the postgreql platform. The reason for this cast is not clear. So here we try to produce a wide range of cases to ensure that these casts are not needed; see [ticket:2740]. """ __only_on__ = "postgresql" __backend__ = True run_inserts = "once" run_deletes = None class TZ(datetime.tzinfo): def utcoffset(self, dt): return datetime.timedelta(hours=4) @classmethod def setup_bind(cls): from sqlalchemy import event eng = engines.testing_engine(options={"scope": "class"}) @event.listens_for(eng, "connect") def connect(dbapi_conn, rec): cursor = dbapi_conn.cursor() cursor.execute("SET SESSION TIME ZONE 0") cursor.close() return eng @classmethod def define_tables(cls, metadata): Table( "t", metadata, Column("id", Integer, primary_key=True), Column("dtme", DateTime), Column("dt", Date), Column("tm", Time), Column("intv", postgresql.INTERVAL), Column("dttz", DateTime(timezone=True)), ) @classmethod def insert_data(cls, connection): connection.execute( cls.tables.t.insert(), { "dtme": datetime.datetime(2012, 5, 10, 12, 15, 25), "dt": datetime.date(2012, 5, 10), "tm": datetime.time(12, 15, 25), "intv": datetime.timedelta(seconds=570), "dttz": datetime.datetime( 2012, 5, 10, 12, 15, 25, tzinfo=cls.TZ() ), }, ) def _test(self, connection, expr, field="all", overrides=None): t = self.tables.t if field == "all": fields = { "year": 2012, "month": 5, "day": 10, "epoch": 1336652125.0, "hour": 12, "minute": 15, } elif field == "time": fields = {"hour": 12, "minute": 15, "second": 25} elif field == "date": fields = {"year": 2012, "month": 5, "day": 10} elif field == "all+tz": fields = { "year": 2012, "month": 5, "day": 10, "epoch": 1336637725.0, "hour": 8, "timezone": 0, } else: fields = field if overrides: fields.update(overrides) for field in fields: result = connection.execute( select(extract(field, expr)).select_from(t) ).scalar() eq_(result, fields[field]) def test_one(self, connection): t = self.tables.t self._test(connection, t.c.dtme, "all") def test_two(self, connection): t = self.tables.t self._test( connection, t.c.dtme + t.c.intv, overrides={"epoch": 1336652695.0, "minute": 24}, ) def test_three(self, connection): self.tables.t actual_ts = self.bind.connect().execute( func.current_timestamp() ).scalar() - datetime.timedelta(days=5) self._test( connection, func.current_timestamp() - datetime.timedelta(days=5), { "hour": actual_ts.hour, "year": actual_ts.year, "month": actual_ts.month, }, ) def test_four(self, connection): t = self.tables.t self._test( connection, datetime.timedelta(days=5) + t.c.dt, overrides={ "day": 15, "epoch": 1337040000.0, "hour": 0, "minute": 0, }, ) def test_five(self, connection): t = self.tables.t self._test( connection, func.coalesce(t.c.dtme, func.current_timestamp()), overrides={"epoch": 1336652125.0}, ) def test_six(self, connection): t = self.tables.t self._test( connection, t.c.tm + datetime.timedelta(seconds=30), "time", overrides={"second": 55}, ) def test_seven(self, connection): self._test( connection, literal(datetime.timedelta(seconds=10)) - literal(datetime.timedelta(seconds=10)), "all", overrides={ "hour": 0, "minute": 0, "month": 0, "year": 0, "day": 0, "epoch": 0, }, ) def test_eight(self, connection): t = self.tables.t self._test( connection, t.c.tm + datetime.timedelta(seconds=30), {"hour": 12, "minute": 15, "second": 55}, ) def test_nine(self, connection): self._test(connection, text("t.dt + t.tm")) def test_ten(self, connection): t = self.tables.t self._test(connection, t.c.dt + t.c.tm) def test_eleven(self, connection): self._test( connection, func.current_timestamp() - func.current_timestamp(), {"year": 0, "month": 0, "day": 0, "hour": 0}, ) def test_twelve(self, connection): t = self.tables.t actual_ts = connection.scalar( func.current_timestamp() ) - datetime.datetime(2012, 5, 10, 12, 15, 25, tzinfo=self.TZ()) self._test( connection, func.current_timestamp() - t.c.dttz, {"day": actual_ts.days}, ) def test_thirteen(self, connection): t = self.tables.t self._test(connection, t.c.dttz, "all+tz") def test_fourteen(self, connection): t = self.tables.t self._test(connection, t.c.tm, "time") def test_fifteen(self, connection): t = self.tables.t self._test( connection, datetime.timedelta(days=5) + t.c.dtme, overrides={"day": 15, "epoch": 1337084125.0}, ) class TableValuedRoundTripTest(fixtures.TestBase): __backend__ = True __only_on__ = "postgresql" def test_generate_series_scalar(self, connection): x = func.generate_series(1, 2).alias("x") y = func.generate_series(1, 2).alias("y") stmt = select(x.column, y.column).join_from(x, y, true()) eq_(connection.execute(stmt).all(), [(1, 1), (1, 2), (2, 1), (2, 2)]) def test_aggregate_scalar_over_table_valued(self, metadata, connection): test = Table( "test", metadata, Column("id", Integer), Column("data", JSONB) ) test.create(connection) connection.execute( test.insert(), [ {"id": 1, "data": {"key": [23.7, 108.17, 55.98]}}, {"id": 2, "data": {"key": [2.320, 9.55]}}, {"id": 3, "data": {"key": [10.5, 6]}}, ], ) elem = ( func.jsonb_array_elements_text(test.c.data["key"]) .table_valued("value") .alias("elem") ) maxdepth = select(func.max(cast(elem.c.value, Float))).label( "maxdepth" ) stmt = select(test.c.id.label("test_id"), maxdepth).order_by( "maxdepth" ) eq_( connection.execute(stmt).all(), [(2, 9.55), (3, 10.5), (1, 108.17)] ) @testing.fixture def assets_transactions(self, metadata, connection): assets_transactions = Table( "assets_transactions", metadata, Column("id", Integer), Column("contents", JSONB), ) assets_transactions.create(connection) connection.execute( assets_transactions.insert(), [ {"id": 1, "contents": {"k1": "v1"}}, {"id": 2, "contents": {"k2": "v2"}}, {"id": 3, "contents": {"k3": "v3"}}, ], ) return assets_transactions def test_scalar_table_valued(self, assets_transactions, connection): stmt = select( assets_transactions.c.id, func.jsonb_each( assets_transactions.c.contents, type_=JSONB ).scalar_table_valued("key"), func.jsonb_each( assets_transactions.c.contents, type_=JSONB ).scalar_table_valued("value"), ) eq_( connection.execute(stmt).all(), [(1, "k1", "v1"), (2, "k2", "v2"), (3, "k3", "v3")], ) def test_table_valued(self, assets_transactions, connection): jb = func.jsonb_each(assets_transactions.c.contents).table_valued( "key", "value" ) stmt = select(assets_transactions.c.id, jb.c.key, jb.c.value).join( jb, true() ) eq_( connection.execute(stmt).all(), [(1, "k1", "v1"), (2, "k2", "v2"), (3, "k3", "v3")], ) @testing.fixture def axy_table(self, metadata, connection): a = Table( "a", metadata, Column("id", Integer), Column("x", Integer), Column("y", Integer), ) a.create(connection) connection.execute( a.insert(), [ {"id": 1, "x": 5, "y": 4}, {"id": 2, "x": 15, "y": 3}, {"id": 3, "x": 7, "y": 9}, ], ) return a def test_function_against_table_record(self, axy_table, connection): """ SELECT row_to_json(anon_1) AS row_to_json_1 FROM (SELECT a.id AS id, a.x AS x, a.y AS y FROM a) AS anon_1 """ stmt = select(func.row_to_json(axy_table.table_valued())) eq_( connection.execute(stmt).scalars().all(), [ {"id": 1, "x": 5, "y": 4}, {"id": 2, "x": 15, "y": 3}, {"id": 3, "x": 7, "y": 9}, ], ) def test_function_against_subq_record(self, axy_table, connection): """ SELECT row_to_json(anon_1) AS row_to_json_1 FROM (SELECT a.id AS id, a.x AS x, a.y AS y FROM a) AS anon_1 """ stmt = select( func.row_to_json(axy_table.select().subquery().table_valued()) ) eq_( connection.execute(stmt).scalars().all(), [ {"id": 1, "x": 5, "y": 4}, {"id": 2, "x": 15, "y": 3}, {"id": 3, "x": 7, "y": 9}, ], ) def test_function_against_row_constructor(self, connection): stmt = select(func.row_to_json(func.row(1, "foo"))) eq_(connection.scalar(stmt), {"f1": 1, "f2": "foo"}) def test_with_ordinality_named(self, connection): stmt = select( func.generate_series(4, 1, -1) .table_valued("gs", with_ordinality="ordinality") .render_derived() ) eq_(connection.execute(stmt).all(), [(4, 1), (3, 2), (2, 3), (1, 4)]) def test_with_ordinality_star(self, connection): stmt = select("*").select_from( func.generate_series(4, 1, -1).table_valued( with_ordinality="ordinality" ) ) eq_(connection.execute(stmt).all(), [(4, 1), (3, 2), (2, 3), (1, 4)]) def test_plain_old_unnest(self, connection): fn = func.unnest( postgresql.array(["one", "two", "three", "four"]) ).column_valued() stmt = select(fn) eq_( connection.execute(stmt).all(), [("one",), ("two",), ("three",), ("four",)], ) def test_unnest_with_ordinality(self, connection): array_val = postgresql.array( [postgresql.array([14, 41, 7]), postgresql.array([54, 9, 49])] ) stmt = select("*").select_from( func.unnest(array_val) .table_valued("elts", with_ordinality="num") .render_derived() .alias("t") ) eq_( connection.execute(stmt).all(), [(14, 1), (41, 2), (7, 3), (54, 4), (9, 5), (49, 6)], ) def test_unnest_with_ordinality_named(self, connection): array_val = postgresql.array( [postgresql.array([14, 41, 7]), postgresql.array([54, 9, 49])] ) fn = ( func.unnest(array_val) .table_valued("elts", with_ordinality="num") .alias("t") .render_derived() ) stmt = select(fn.c.elts, fn.c.num) eq_( connection.execute(stmt).all(), [(14, 1), (41, 2), (7, 3), (54, 4), (9, 5), (49, 6)], ) @testing.only_on( "postgresql+psycopg2", "I cannot get this to run at all on other drivers, " "even selecting from a table", ) def test_render_derived_quoting(self, connection): fn = ( func.json_to_recordset( # noqa '[{"CaseSensitive":1,"the % value":"foo"}, ' '{"CaseSensitive":"2","the % value":"bar"}]' ) .table_valued( column("CaseSensitive", Integer), column("the % value", String) ) .render_derived(with_types=True) ) stmt = select(fn.c.CaseSensitive, fn.c["the % value"]) eq_(connection.execute(stmt).all(), [(1, "foo"), (2, "bar")])