#! coding:utf-8 """ compiler tests. These tests are among the very first that were written when SQLAlchemy began in 2005. As a result the testing style here is very dense; it's an ongoing job to break these into much smaller tests with correct pep8 styling and coherent test organization. """ from sqlalchemy.testing import eq_, is_, assert_raises, assert_raises_message from sqlalchemy import testing from sqlalchemy.testing import fixtures, AssertsCompiledSQL from sqlalchemy import Integer, String, MetaData, Table, Column, select, \ func, not_, cast, text, tuple_, exists, update, bindparam,\ literal, and_, null, type_coerce, alias, or_, literal_column,\ Float, TIMESTAMP, Numeric, Date, Text, union, except_,\ intersect, union_all, Boolean, distinct, join, outerjoin, asc, desc,\ over, subquery, case, true, CheckConstraint import decimal from sqlalchemy.util import u from sqlalchemy import exc, sql, util, types, schema from sqlalchemy.sql import table, column, label from sqlalchemy.sql.expression import ClauseList, _literal_as_text, HasPrefixes from sqlalchemy.engine import default from sqlalchemy.dialects import mysql, mssql, postgresql, oracle, \ sqlite, sybase from sqlalchemy.ext.compiler import compiles from sqlalchemy.sql import compiler table1 = table('mytable', column('myid', Integer), column('name', String), column('description', String), ) table2 = table( 'myothertable', column('otherid', Integer), column('othername', String), ) table3 = table( 'thirdtable', column('userid', Integer), column('otherstuff', String), ) metadata = MetaData() # table with a schema table4 = Table( 'remotetable', metadata, Column('rem_id', Integer, primary_key=True), Column('datatype_id', Integer), Column('value', String(20)), schema='remote_owner' ) # table with a 'multipart' schema table5 = Table( 'remotetable', metadata, Column('rem_id', Integer, primary_key=True), Column('datatype_id', Integer), Column('value', String(20)), schema='dbo.remote_owner' ) users = table('users', column('user_id'), column('user_name'), column('password'), ) addresses = table('addresses', column('address_id'), column('user_id'), column('street'), column('city'), column('state'), column('zip') ) keyed = Table('keyed', metadata, Column('x', Integer, key='colx'), Column('y', Integer, key='coly'), Column('z', Integer), ) class SelectTest(fixtures.TestBase, AssertsCompiledSQL): __dialect__ = 'default' def test_attribute_sanity(self): assert hasattr(table1, 'c') assert hasattr(table1.select(), 'c') assert not hasattr(table1.c.myid.self_group(), 'columns') assert hasattr(table1.select().self_group(), 'columns') assert not hasattr(table1.c.myid, 'columns') assert not hasattr(table1.c.myid, 'c') assert not hasattr(table1.select().c.myid, 'c') assert not hasattr(table1.select().c.myid, 'columns') assert not hasattr(table1.alias().c.myid, 'columns') assert not hasattr(table1.alias().c.myid, 'c') if util.compat.py32: assert_raises_message( exc.InvalidRequestError, 'Scalar Select expression has no ' 'columns; use this object directly within a ' 'column-level expression.', lambda: hasattr( select([table1.c.myid]).as_scalar().self_group(), 'columns')) assert_raises_message( exc.InvalidRequestError, 'Scalar Select expression has no ' 'columns; use this object directly within a ' 'column-level expression.', lambda: hasattr(select([table1.c.myid]).as_scalar(), 'columns')) else: assert not hasattr( select([table1.c.myid]).as_scalar().self_group(), 'columns') assert not hasattr(select([table1.c.myid]).as_scalar(), 'columns') def test_prefix_constructor(self): class Pref(HasPrefixes): def _generate(self): return self assert_raises(exc.ArgumentError, Pref().prefix_with, "some prefix", not_a_dialect=True ) def test_table_select(self): self.assert_compile(table1.select(), "SELECT mytable.myid, mytable.name, " "mytable.description FROM mytable") self.assert_compile( select( [ table1, table2]), "SELECT mytable.myid, mytable.name, mytable.description, " "myothertable.otherid, myothertable.othername FROM mytable, " "myothertable") def test_invalid_col_argument(self): assert_raises(exc.ArgumentError, select, table1) assert_raises(exc.ArgumentError, select, table1.c.myid) def test_int_limit_offset_coercion(self): for given, exp in [ ("5", 5), (5, 5), (5.2, 5), (decimal.Decimal("5"), 5), (None, None), ]: eq_(select().limit(given)._limit, exp) eq_(select().offset(given)._offset, exp) eq_(select(limit=given)._limit, exp) eq_(select(offset=given)._offset, exp) assert_raises(ValueError, select().limit, "foo") assert_raises(ValueError, select().offset, "foo") assert_raises(ValueError, select, offset="foo") assert_raises(ValueError, select, limit="foo") def test_limit_offset_no_int_coercion_one(self): exp1 = literal_column("Q") exp2 = literal_column("Y") self.assert_compile( select([1]).limit(exp1).offset(exp2), "SELECT 1 LIMIT Q OFFSET Y" ) self.assert_compile( select([1]).limit(bindparam('x')).offset(bindparam('y')), "SELECT 1 LIMIT :x OFFSET :y" ) def test_limit_offset_no_int_coercion_two(self): exp1 = literal_column("Q") exp2 = literal_column("Y") sel = select([1]).limit(exp1).offset(exp2) assert_raises_message( exc.CompileError, "This SELECT structure does not use a simple integer " "value for limit", getattr, sel, "_limit" ) assert_raises_message( exc.CompileError, "This SELECT structure does not use a simple integer " "value for offset", getattr, sel, "_offset" ) def test_limit_offset_no_int_coercion_three(self): exp1 = bindparam("Q") exp2 = bindparam("Y") sel = select([1]).limit(exp1).offset(exp2) assert_raises_message( exc.CompileError, "This SELECT structure does not use a simple integer " "value for limit", getattr, sel, "_limit" ) assert_raises_message( exc.CompileError, "This SELECT structure does not use a simple integer " "value for offset", getattr, sel, "_offset" ) def test_limit_offset(self): for lim, offset, exp, params in [ (5, 10, "LIMIT :param_1 OFFSET :param_2", {'param_1': 5, 'param_2': 10}), (None, 10, "LIMIT -1 OFFSET :param_1", {'param_1': 10}), (5, None, "LIMIT :param_1", {'param_1': 5}), (0, 0, "LIMIT :param_1 OFFSET :param_2", {'param_1': 0, 'param_2': 0}), ]: self.assert_compile( select([1]).limit(lim).offset(offset), "SELECT 1 " + exp, checkparams=params ) def test_limit_offset_select_literal_binds(self): stmt = select([1]).limit(5).offset(6) self.assert_compile( stmt, "SELECT 1 LIMIT 5 OFFSET 6", literal_binds=True ) def test_limit_offset_compound_select_literal_binds(self): stmt = select([1]).union(select([2])).limit(5).offset(6) self.assert_compile( stmt, "SELECT 1 UNION SELECT 2 LIMIT 5 OFFSET 6", literal_binds=True ) def test_select_precol_compile_ordering(self): s1 = select([column('x')]).select_from(text('a')).limit(5).as_scalar() s2 = select([s1]).limit(10) class MyCompiler(compiler.SQLCompiler): def get_select_precolumns(self, select, **kw): result = "" if select._limit: result += "FIRST %s " % self.process( literal( select._limit), **kw) if select._offset: result += "SKIP %s " % self.process( literal( select._offset), **kw) return result def limit_clause(self, select, **kw): return "" dialect = default.DefaultDialect() dialect.statement_compiler = MyCompiler dialect.paramstyle = 'qmark' dialect.positional = True self.assert_compile( s2, "SELECT FIRST ? (SELECT FIRST ? x FROM a) AS anon_1", checkpositional=(10, 5), dialect=dialect ) def test_from_subquery(self): """tests placing select statements in the column clause of another select, for the purposes of selecting from the exported columns of that select.""" s = select([table1], table1.c.name == 'jack') self.assert_compile( select( [s], s.c.myid == 7), "SELECT myid, name, description FROM " "(SELECT mytable.myid AS myid, " "mytable.name AS name, mytable.description AS description " "FROM mytable " "WHERE mytable.name = :name_1) WHERE myid = :myid_1") sq = select([table1]) self.assert_compile( sq.select(), "SELECT myid, name, description FROM " "(SELECT mytable.myid AS myid, " "mytable.name AS name, mytable.description " "AS description FROM mytable)" ) sq = select( [table1], ).alias('sq') self.assert_compile( sq.select(sq.c.myid == 7), "SELECT sq.myid, sq.name, sq.description FROM " "(SELECT mytable.myid AS myid, mytable.name AS name, " "mytable.description AS description FROM mytable) AS sq " "WHERE sq.myid = :myid_1" ) sq = select( [table1, table2], and_(table1.c.myid == 7, table2.c.otherid == table1.c.myid), use_labels=True ).alias('sq') sqstring = "SELECT mytable.myid AS mytable_myid, mytable.name AS "\ "mytable_name, mytable.description AS mytable_description, "\ "myothertable.otherid AS myothertable_otherid, "\ "myothertable.othername AS myothertable_othername FROM "\ "mytable, myothertable WHERE mytable.myid = :myid_1 AND "\ "myothertable.otherid = mytable.myid" self.assert_compile( sq.select(), "SELECT sq.mytable_myid, sq.mytable_name, " "sq.mytable_description, sq.myothertable_otherid, " "sq.myothertable_othername FROM (%s) AS sq" % sqstring) sq2 = select( [sq], use_labels=True ).alias('sq2') self.assert_compile( sq2.select(), "SELECT sq2.sq_mytable_myid, sq2.sq_mytable_name, " "sq2.sq_mytable_description, sq2.sq_myothertable_otherid, " "sq2.sq_myothertable_othername FROM " "(SELECT sq.mytable_myid AS " "sq_mytable_myid, sq.mytable_name AS sq_mytable_name, " "sq.mytable_description AS sq_mytable_description, " "sq.myothertable_otherid AS sq_myothertable_otherid, " "sq.myothertable_othername AS sq_myothertable_othername " "FROM (%s) AS sq) AS sq2" % sqstring) def test_select_from_clauselist(self): self.assert_compile( select([ClauseList(column('a'), column('b'))] ).select_from(text('sometable')), 'SELECT a, b FROM sometable' ) def test_use_labels(self): self.assert_compile( select([table1.c.myid == 5], use_labels=True), "SELECT mytable.myid = :myid_1 AS anon_1 FROM mytable" ) self.assert_compile( select([func.foo()], use_labels=True), "SELECT foo() AS foo_1" ) # this is native_boolean=False for default dialect self.assert_compile( select([not_(True)], use_labels=True), "SELECT :param_1 = 0 AS anon_1" ) self.assert_compile( select([cast("data", Integer)], use_labels=True), "SELECT CAST(:param_1 AS INTEGER) AS anon_1" ) self.assert_compile( select([func.sum( func.lala(table1.c.myid).label('foo')).label('bar')]), "SELECT sum(lala(mytable.myid)) AS bar FROM mytable" ) self.assert_compile( select([keyed]), "SELECT keyed.x, keyed.y" ", keyed.z FROM keyed" ) self.assert_compile( select([keyed]).apply_labels(), "SELECT keyed.x AS keyed_x, keyed.y AS " "keyed_y, keyed.z AS keyed_z FROM keyed" ) def test_paramstyles(self): stmt = text("select :foo, :bar, :bat from sometable") self.assert_compile( stmt, "select ?, ?, ? from sometable", dialect=default.DefaultDialect(paramstyle='qmark') ) self.assert_compile( stmt, "select :foo, :bar, :bat from sometable", dialect=default.DefaultDialect(paramstyle='named') ) self.assert_compile( stmt, "select %s, %s, %s from sometable", dialect=default.DefaultDialect(paramstyle='format') ) self.assert_compile( stmt, "select :1, :2, :3 from sometable", dialect=default.DefaultDialect(paramstyle='numeric') ) self.assert_compile( stmt, "select %(foo)s, %(bar)s, %(bat)s from sometable", dialect=default.DefaultDialect(paramstyle='pyformat') ) def test_anon_param_name_on_keys(self): self.assert_compile( keyed.insert(), "INSERT INTO keyed (x, y, z) VALUES (%(colx)s, %(coly)s, %(z)s)", dialect=default.DefaultDialect(paramstyle='pyformat') ) self.assert_compile( keyed.c.coly == 5, "keyed.y = %(coly_1)s", checkparams={'coly_1': 5}, dialect=default.DefaultDialect(paramstyle='pyformat') ) def test_dupe_columns(self): """test that deduping is performed against clause element identity, not rendered result.""" self.assert_compile( select([column('a'), column('a'), column('a')]), "SELECT a, a, a", dialect=default.DefaultDialect() ) c = column('a') self.assert_compile( select([c, c, c]), "SELECT a", dialect=default.DefaultDialect() ) a, b = column('a'), column('b') self.assert_compile( select([a, b, b, b, a, a]), "SELECT a, b", dialect=default.DefaultDialect() ) # using alternate keys. a, b, c = Column('a', Integer, key='b'), \ Column('b', Integer), \ Column('c', Integer, key='a') self.assert_compile( select([a, b, c, a, b, c]), "SELECT a, b, c", dialect=default.DefaultDialect() ) self.assert_compile( select([bindparam('a'), bindparam('b'), bindparam('c')]), "SELECT :a AS anon_1, :b AS anon_2, :c AS anon_3", dialect=default.DefaultDialect(paramstyle='named') ) self.assert_compile( select([bindparam('a'), bindparam('b'), bindparam('c')]), "SELECT ? AS anon_1, ? AS anon_2, ? AS anon_3", dialect=default.DefaultDialect(paramstyle='qmark'), ) self.assert_compile( select([column("a"), column("a"), column("a")]), "SELECT a, a, a" ) s = select([bindparam('a'), bindparam('b'), bindparam('c')]) s = s.compile(dialect=default.DefaultDialect(paramstyle='qmark')) eq_(s.positiontup, ['a', 'b', 'c']) def test_nested_label_targeting(self): """test nested anonymous label generation. """ s1 = table1.select() s2 = s1.alias() s3 = select([s2], use_labels=True) s4 = s3.alias() s5 = select([s4], use_labels=True) self.assert_compile(s5, 'SELECT anon_1.anon_2_myid AS ' 'anon_1_anon_2_myid, anon_1.anon_2_name AS ' 'anon_1_anon_2_name, anon_1.anon_2_descript' 'ion AS anon_1_anon_2_description FROM ' '(SELECT anon_2.myid AS anon_2_myid, ' 'anon_2.name AS anon_2_name, ' 'anon_2.description AS anon_2_description ' 'FROM (SELECT mytable.myid AS myid, ' 'mytable.name AS name, mytable.description ' 'AS description FROM mytable) AS anon_2) ' 'AS anon_1') def test_nested_label_targeting_keyed(self): s1 = keyed.select() s2 = s1.alias() s3 = select([s2], use_labels=True) self.assert_compile(s3, "SELECT anon_1.x AS anon_1_x, " "anon_1.y AS anon_1_y, " "anon_1.z AS anon_1_z FROM " "(SELECT keyed.x AS x, keyed.y " "AS y, keyed.z AS z FROM keyed) AS anon_1") s4 = s3.alias() s5 = select([s4], use_labels=True) self.assert_compile(s5, "SELECT anon_1.anon_2_x AS anon_1_anon_2_x, " "anon_1.anon_2_y AS anon_1_anon_2_y, " "anon_1.anon_2_z AS anon_1_anon_2_z " "FROM (SELECT anon_2.x AS anon_2_x, " "anon_2.y AS anon_2_y, " "anon_2.z AS anon_2_z FROM " "(SELECT keyed.x AS x, keyed.y AS y, keyed.z " "AS z FROM keyed) AS anon_2) AS anon_1" ) def test_exists(self): s = select([table1.c.myid]).where(table1.c.myid == 5) self.assert_compile(exists(s), "EXISTS (SELECT mytable.myid FROM mytable " "WHERE mytable.myid = :myid_1)" ) self.assert_compile(exists(s.as_scalar()), "EXISTS (SELECT mytable.myid FROM mytable " "WHERE mytable.myid = :myid_1)" ) self.assert_compile(exists([table1.c.myid], table1.c.myid == 5).select(), 'SELECT EXISTS (SELECT mytable.myid FROM ' 'mytable WHERE mytable.myid = :myid_1) AS anon_1', params={'mytable_myid': 5}) self.assert_compile(select([table1, exists([1], from_obj=table2)]), 'SELECT mytable.myid, mytable.name, ' 'mytable.description, EXISTS (SELECT 1 ' 'FROM myothertable) AS anon_1 FROM mytable', params={}) self.assert_compile(select([table1, exists([1], from_obj=table2).label('foo')]), 'SELECT mytable.myid, mytable.name, ' 'mytable.description, EXISTS (SELECT 1 ' 'FROM myothertable) AS foo FROM mytable', params={}) self.assert_compile( table1.select( exists().where( table2.c.otherid == table1.c.myid).correlate(table1)), 'SELECT mytable.myid, mytable.name, ' 'mytable.description FROM mytable WHERE ' 'EXISTS (SELECT * FROM myothertable WHERE ' 'myothertable.otherid = mytable.myid)') self.assert_compile( table1.select( exists().where( table2.c.otherid == table1.c.myid).correlate(table1)), 'SELECT mytable.myid, mytable.name, ' 'mytable.description FROM mytable WHERE ' 'EXISTS (SELECT * FROM myothertable WHERE ' 'myothertable.otherid = mytable.myid)') self.assert_compile( table1.select( exists().where( table2.c.otherid == table1.c.myid).correlate(table1) ).replace_selectable( table2, table2.alias()), 'SELECT mytable.myid, mytable.name, ' 'mytable.description FROM mytable WHERE ' 'EXISTS (SELECT * FROM myothertable AS ' 'myothertable_1 WHERE myothertable_1.otheri' 'd = mytable.myid)') self.assert_compile( table1.select( exists().where( table2.c.otherid == table1.c.myid).correlate(table1)). select_from( table1.join( table2, table1.c.myid == table2.c.otherid)). replace_selectable( table2, table2.alias()), 'SELECT mytable.myid, mytable.name, ' 'mytable.description FROM mytable JOIN ' 'myothertable AS myothertable_1 ON ' 'mytable.myid = myothertable_1.otherid ' 'WHERE EXISTS (SELECT * FROM myothertable ' 'AS myothertable_1 WHERE ' 'myothertable_1.otherid = mytable.myid)') self.assert_compile( select([ or_( exists().where(table2.c.otherid == 'foo'), exists().where(table2.c.otherid == 'bar') ) ]), "SELECT (EXISTS (SELECT * FROM myothertable " "WHERE myothertable.otherid = :otherid_1)) " "OR (EXISTS (SELECT * FROM myothertable WHERE " "myothertable.otherid = :otherid_2)) AS anon_1" ) self.assert_compile( select([exists([1])]), "SELECT EXISTS (SELECT 1) AS anon_1" ) self.assert_compile( select([~exists([1])]), "SELECT NOT (EXISTS (SELECT 1)) AS anon_1" ) self.assert_compile( select([~(~exists([1]))]), "SELECT NOT (NOT (EXISTS (SELECT 1))) AS anon_1" ) def test_where_subquery(self): s = select([addresses.c.street], addresses.c.user_id == users.c.user_id, correlate=True).alias('s') # don't correlate in a FROM list self.assert_compile(select([users, s.c.street], from_obj=s), "SELECT users.user_id, users.user_name, " "users.password, s.street FROM users, " "(SELECT addresses.street AS street FROM " "addresses, users WHERE addresses.user_id = " "users.user_id) AS s") self.assert_compile(table1.select( table1.c.myid == select( [table1.c.myid], table1.c.name == 'jack')), 'SELECT mytable.myid, mytable.name, ' 'mytable.description FROM mytable WHERE ' 'mytable.myid = (SELECT mytable.myid FROM ' 'mytable WHERE mytable.name = :name_1)') self.assert_compile( table1.select( table1.c.myid == select( [table2.c.otherid], table1.c.name == table2.c.othername ) ), 'SELECT mytable.myid, mytable.name, ' 'mytable.description FROM mytable WHERE ' 'mytable.myid = (SELECT ' 'myothertable.otherid FROM myothertable ' 'WHERE mytable.name = myothertable.othernam' 'e)') self.assert_compile(table1.select(exists([1], table2.c.otherid == table1.c.myid)), 'SELECT mytable.myid, mytable.name, ' 'mytable.description FROM mytable WHERE ' 'EXISTS (SELECT 1 FROM myothertable WHERE ' 'myothertable.otherid = mytable.myid)') talias = table1.alias('ta') s = subquery('sq2', [talias], exists([1], table2.c.otherid == talias.c.myid)) self.assert_compile(select([s, table1]), 'SELECT sq2.myid, sq2.name, ' 'sq2.description, mytable.myid, ' 'mytable.name, mytable.description FROM ' '(SELECT ta.myid AS myid, ta.name AS name, ' 'ta.description AS description FROM ' 'mytable AS ta WHERE EXISTS (SELECT 1 FROM ' 'myothertable WHERE myothertable.otherid = ' 'ta.myid)) AS sq2, mytable') # test constructing the outer query via append_column(), which # occurs in the ORM's Query object s = select([], exists([1], table2.c.otherid == table1.c.myid), from_obj=table1) s.append_column(table1) self.assert_compile(s, 'SELECT mytable.myid, mytable.name, ' 'mytable.description FROM mytable WHERE ' 'EXISTS (SELECT 1 FROM myothertable WHERE ' 'myothertable.otherid = mytable.myid)') def test_orderby_subquery(self): self.assert_compile( table1.select( order_by=[ select( [ table2.c.otherid], table1.c.myid == table2.c.otherid)]), 'SELECT mytable.myid, mytable.name, ' 'mytable.description FROM mytable ORDER BY ' '(SELECT myothertable.otherid FROM ' 'myothertable WHERE mytable.myid = ' 'myothertable.otherid)') self.assert_compile(table1.select(order_by=[ desc(select([table2.c.otherid], table1.c.myid == table2.c.otherid))]), 'SELECT mytable.myid, mytable.name, ' 'mytable.description FROM mytable ORDER BY ' '(SELECT myothertable.otherid FROM ' 'myothertable WHERE mytable.myid = ' 'myothertable.otherid) DESC') def test_scalar_select(self): assert_raises_message( exc.InvalidRequestError, r"Select objects don't have a type\. Call as_scalar\(\) " "on this Select object to return a 'scalar' " "version of this Select\.", func.coalesce, select([table1.c.myid]) ) s = select([table1.c.myid], correlate=False).as_scalar() self.assert_compile(select([table1, s]), 'SELECT mytable.myid, mytable.name, ' 'mytable.description, (SELECT mytable.myid ' 'FROM mytable) AS anon_1 FROM mytable') s = select([table1.c.myid]).as_scalar() self.assert_compile(select([table2, s]), 'SELECT myothertable.otherid, ' 'myothertable.othername, (SELECT ' 'mytable.myid FROM mytable) AS anon_1 FROM ' 'myothertable') s = select([table1.c.myid]).correlate(None).as_scalar() self.assert_compile(select([table1, s]), 'SELECT mytable.myid, mytable.name, ' 'mytable.description, (SELECT mytable.myid ' 'FROM mytable) AS anon_1 FROM mytable') s = select([table1.c.myid]).as_scalar() s2 = s.where(table1.c.myid == 5) self.assert_compile( s2, "(SELECT mytable.myid FROM mytable WHERE mytable.myid = :myid_1)" ) self.assert_compile( s, "(SELECT mytable.myid FROM mytable)" ) # test that aliases use as_scalar() when used in an explicitly # scalar context s = select([table1.c.myid]).alias() self.assert_compile(select([table1.c.myid]).where(table1.c.myid == s), 'SELECT mytable.myid FROM mytable WHERE ' 'mytable.myid = (SELECT mytable.myid FROM ' 'mytable)') self.assert_compile(select([table1.c.myid]).where(s > table1.c.myid), 'SELECT mytable.myid FROM mytable WHERE ' 'mytable.myid < (SELECT mytable.myid FROM ' 'mytable)') s = select([table1.c.myid]).as_scalar() self.assert_compile(select([table2, s]), 'SELECT myothertable.otherid, ' 'myothertable.othername, (SELECT ' 'mytable.myid FROM mytable) AS anon_1 FROM ' 'myothertable') # test expressions against scalar selects self.assert_compile(select([s - literal(8)]), 'SELECT (SELECT mytable.myid FROM mytable) ' '- :param_1 AS anon_1') self.assert_compile(select([select([table1.c.name]).as_scalar() + literal('x')]), 'SELECT (SELECT mytable.name FROM mytable) ' '|| :param_1 AS anon_1') self.assert_compile(select([s > literal(8)]), 'SELECT (SELECT mytable.myid FROM mytable) ' '> :param_1 AS anon_1') self.assert_compile(select([select([table1.c.name]).label('foo' )]), 'SELECT (SELECT mytable.name FROM mytable) ' 'AS foo') # scalar selects should not have any attributes on their 'c' or # 'columns' attribute s = select([table1.c.myid]).as_scalar() try: s.c.foo except exc.InvalidRequestError as err: assert str(err) \ == 'Scalar Select expression has no columns; use this '\ 'object directly within a column-level expression.' try: s.columns.foo except exc.InvalidRequestError as err: assert str(err) \ == 'Scalar Select expression has no columns; use this '\ 'object directly within a column-level expression.' zips = table('zips', column('zipcode'), column('latitude'), column('longitude'), ) places = table('places', column('id'), column('nm') ) zip = '12345' qlat = select([zips.c.latitude], zips.c.zipcode == zip).\ correlate(None).as_scalar() qlng = select([zips.c.longitude], zips.c.zipcode == zip).\ correlate(None).as_scalar() q = select([places.c.id, places.c.nm, zips.c.zipcode, func.latlondist(qlat, qlng).label('dist')], zips.c.zipcode == zip, order_by=['dist', places.c.nm] ) self.assert_compile(q, 'SELECT places.id, places.nm, ' 'zips.zipcode, latlondist((SELECT ' 'zips.latitude FROM zips WHERE ' 'zips.zipcode = :zipcode_1), (SELECT ' 'zips.longitude FROM zips WHERE ' 'zips.zipcode = :zipcode_2)) AS dist FROM ' 'places, zips WHERE zips.zipcode = ' ':zipcode_3 ORDER BY dist, places.nm') zalias = zips.alias('main_zip') qlat = select([zips.c.latitude], zips.c.zipcode == zalias.c.zipcode).\ as_scalar() qlng = select([zips.c.longitude], zips.c.zipcode == zalias.c.zipcode).\ as_scalar() q = select([places.c.id, places.c.nm, zalias.c.zipcode, func.latlondist(qlat, qlng).label('dist')], order_by=['dist', places.c.nm]) self.assert_compile(q, 'SELECT places.id, places.nm, ' 'main_zip.zipcode, latlondist((SELECT ' 'zips.latitude FROM zips WHERE ' 'zips.zipcode = main_zip.zipcode), (SELECT ' 'zips.longitude FROM zips WHERE ' 'zips.zipcode = main_zip.zipcode)) AS dist ' 'FROM places, zips AS main_zip ORDER BY ' 'dist, places.nm') a1 = table2.alias('t2alias') s1 = select([a1.c.otherid], table1.c.myid == a1.c.otherid).as_scalar() j1 = table1.join(table2, table1.c.myid == table2.c.otherid) s2 = select([table1, s1], from_obj=j1) self.assert_compile(s2, 'SELECT mytable.myid, mytable.name, ' 'mytable.description, (SELECT ' 't2alias.otherid FROM myothertable AS ' 't2alias WHERE mytable.myid = ' 't2alias.otherid) AS anon_1 FROM mytable ' 'JOIN myothertable ON mytable.myid = ' 'myothertable.otherid') def test_label_comparison_one(self): x = func.lala(table1.c.myid).label('foo') self.assert_compile(select([x], x == 5), 'SELECT lala(mytable.myid) AS foo FROM ' 'mytable WHERE lala(mytable.myid) = ' ':param_1') def test_label_comparison_two(self): self.assert_compile( label('bar', column('foo', type_=String)) + 'foo', 'foo || :param_1') def test_order_by_labels_enabled(self): lab1 = (table1.c.myid + 12).label('foo') lab2 = func.somefunc(table1.c.name).label('bar') dialect = default.DefaultDialect() self.assert_compile(select([lab1, lab2]).order_by(lab1, desc(lab2)), "SELECT mytable.myid + :myid_1 AS foo, " "somefunc(mytable.name) AS bar FROM mytable " "ORDER BY foo, bar DESC", dialect=dialect ) # the function embedded label renders as the function self.assert_compile( select([lab1, lab2]).order_by(func.hoho(lab1), desc(lab2)), "SELECT mytable.myid + :myid_1 AS foo, " "somefunc(mytable.name) AS bar FROM mytable " "ORDER BY hoho(mytable.myid + :myid_1), bar DESC", dialect=dialect ) # binary expressions render as the expression without labels self.assert_compile(select([lab1, lab2]).order_by(lab1 + "test"), "SELECT mytable.myid + :myid_1 AS foo, " "somefunc(mytable.name) AS bar FROM mytable " "ORDER BY mytable.myid + :myid_1 + :param_1", dialect=dialect ) # labels within functions in the columns clause render # with the expression self.assert_compile( select([lab1, func.foo(lab1)]).order_by(lab1, func.foo(lab1)), "SELECT mytable.myid + :myid_1 AS foo, " "foo(mytable.myid + :myid_1) AS foo_1 FROM mytable " "ORDER BY foo, foo(mytable.myid + :myid_1)", dialect=dialect ) lx = (table1.c.myid + table1.c.myid).label('lx') ly = (func.lower(table1.c.name) + table1.c.description).label('ly') self.assert_compile( select([lx, ly]).order_by(lx, ly.desc()), "SELECT mytable.myid + mytable.myid AS lx, " "lower(mytable.name) || mytable.description AS ly " "FROM mytable ORDER BY lx, ly DESC", dialect=dialect ) def test_order_by_labels_disabled(self): lab1 = (table1.c.myid + 12).label('foo') lab2 = func.somefunc(table1.c.name).label('bar') dialect = default.DefaultDialect() dialect.supports_simple_order_by_label = False self.assert_compile( select( [ lab1, lab2]).order_by( lab1, desc(lab2)), "SELECT mytable.myid + :myid_1 AS foo, " "somefunc(mytable.name) AS bar FROM mytable " "ORDER BY mytable.myid + :myid_1, somefunc(mytable.name) DESC", dialect=dialect) self.assert_compile( select([lab1, lab2]).order_by(func.hoho(lab1), desc(lab2)), "SELECT mytable.myid + :myid_1 AS foo, " "somefunc(mytable.name) AS bar FROM mytable " "ORDER BY hoho(mytable.myid + :myid_1), " "somefunc(mytable.name) DESC", dialect=dialect ) def test_no_group_by_labels(self): lab1 = (table1.c.myid + 12).label('foo') lab2 = func.somefunc(table1.c.name).label('bar') dialect = default.DefaultDialect() self.assert_compile( select([lab1, lab2]).group_by(lab1, lab2), "SELECT mytable.myid + :myid_1 AS foo, somefunc(mytable.name) " "AS bar FROM mytable GROUP BY mytable.myid + :myid_1, " "somefunc(mytable.name)", dialect=dialect ) def test_conjunctions(self): a, b, c = text('a'), text('b'), text('c') x = and_(a, b, c) assert isinstance(x.type, Boolean) assert str(x) == 'a AND b AND c' self.assert_compile( select([x.label('foo')]), 'SELECT a AND b AND c AS foo' ) self.assert_compile( and_(table1.c.myid == 12, table1.c.name == 'asdf', table2.c.othername == 'foo', text("sysdate() = today()")), "mytable.myid = :myid_1 AND mytable.name = :name_1 " "AND myothertable.othername = " ":othername_1 AND sysdate() = today()" ) self.assert_compile( and_( table1.c.myid == 12, or_(table2.c.othername == 'asdf', table2.c.othername == 'foo', table2.c.otherid == 9), text("sysdate() = today()"), ), 'mytable.myid = :myid_1 AND (myothertable.othername = ' ':othername_1 OR myothertable.othername = :othername_2 OR ' 'myothertable.otherid = :otherid_1) AND sysdate() = ' 'today()', checkparams={'othername_1': 'asdf', 'othername_2': 'foo', 'otherid_1': 9, 'myid_1': 12} ) # test a generator self.assert_compile( and_( conj for conj in [ table1.c.myid == 12, table1.c.name == 'asdf' ] ), "mytable.myid = :myid_1 AND mytable.name = :name_1" ) def test_nested_conjunctions_short_circuit(self): """test that empty or_(), and_() conjunctions are collapsed by an enclosing conjunction.""" t = table('t', column('x')) self.assert_compile( select([t]).where(and_(t.c.x == 5, or_(and_(or_(t.c.x == 7))))), "SELECT t.x FROM t WHERE t.x = :x_1 AND t.x = :x_2" ) self.assert_compile( select([t]).where(and_(or_(t.c.x == 12, and_(or_(t.c.x == 8))))), "SELECT t.x FROM t WHERE t.x = :x_1 OR t.x = :x_2" ) self.assert_compile( select([t]). where( and_( or_( or_(t.c.x == 12), and_( or_(), or_(and_(t.c.x == 8)), and_() ) ) ) ), "SELECT t.x FROM t WHERE t.x = :x_1 OR t.x = :x_2" ) def test_true_short_circuit(self): t = table('t', column('x')) self.assert_compile( select([t]).where(true()), "SELECT t.x FROM t WHERE 1 = 1", dialect=default.DefaultDialect(supports_native_boolean=False) ) self.assert_compile( select([t]).where(true()), "SELECT t.x FROM t WHERE true", dialect=default.DefaultDialect(supports_native_boolean=True) ) self.assert_compile( select([t]), "SELECT t.x FROM t", dialect=default.DefaultDialect(supports_native_boolean=True) ) def test_distinct(self): self.assert_compile( select([table1.c.myid.distinct()]), "SELECT DISTINCT mytable.myid FROM mytable" ) self.assert_compile( select([distinct(table1.c.myid)]), "SELECT DISTINCT mytable.myid FROM mytable" ) self.assert_compile( select([table1.c.myid]).distinct(), "SELECT DISTINCT mytable.myid FROM mytable" ) self.assert_compile( select([func.count(table1.c.myid.distinct())]), "SELECT count(DISTINCT mytable.myid) AS count_1 FROM mytable" ) self.assert_compile( select([func.count(distinct(table1.c.myid))]), "SELECT count(DISTINCT mytable.myid) AS count_1 FROM mytable" ) def test_where_empty(self): self.assert_compile( select([table1.c.myid]).where(and_()), "SELECT mytable.myid FROM mytable" ) self.assert_compile( select([table1.c.myid]).where(or_()), "SELECT mytable.myid FROM mytable" ) def test_multiple_col_binds(self): self.assert_compile( select( [literal_column("*")], or_( table1.c.myid == 12, table1.c.myid == 'asdf', table1.c.myid == 'foo') ), "SELECT * FROM mytable WHERE mytable.myid = :myid_1 " "OR mytable.myid = :myid_2 OR mytable.myid = :myid_3" ) def test_order_by_nulls(self): self.assert_compile( table2.select(order_by=[table2.c.otherid, table2.c.othername.desc().nullsfirst()]), "SELECT myothertable.otherid, myothertable.othername FROM " "myothertable ORDER BY myothertable.otherid, " "myothertable.othername DESC NULLS FIRST" ) self.assert_compile( table2.select(order_by=[ table2.c.otherid, table2.c.othername.desc().nullslast()]), "SELECT myothertable.otherid, myothertable.othername FROM " "myothertable ORDER BY myothertable.otherid, " "myothertable.othername DESC NULLS LAST" ) self.assert_compile( table2.select(order_by=[ table2.c.otherid.nullslast(), table2.c.othername.desc().nullsfirst()]), "SELECT myothertable.otherid, myothertable.othername FROM " "myothertable ORDER BY myothertable.otherid NULLS LAST, " "myothertable.othername DESC NULLS FIRST" ) self.assert_compile( table2.select(order_by=[table2.c.otherid.nullsfirst(), table2.c.othername.desc()]), "SELECT myothertable.otherid, myothertable.othername FROM " "myothertable ORDER BY myothertable.otherid NULLS FIRST, " "myothertable.othername DESC" ) self.assert_compile( table2.select(order_by=[table2.c.otherid.nullsfirst(), table2.c.othername.desc().nullslast()]), "SELECT myothertable.otherid, myothertable.othername FROM " "myothertable ORDER BY myothertable.otherid NULLS FIRST, " "myothertable.othername DESC NULLS LAST" ) def test_orderby_groupby(self): self.assert_compile( table2.select(order_by=[table2.c.otherid, asc(table2.c.othername)]), "SELECT myothertable.otherid, myothertable.othername FROM " "myothertable ORDER BY myothertable.otherid, " "myothertable.othername ASC" ) self.assert_compile( table2.select(order_by=[table2.c.otherid, table2.c.othername.desc()]), "SELECT myothertable.otherid, myothertable.othername FROM " "myothertable ORDER BY myothertable.otherid, " "myothertable.othername DESC" ) # generative order_by self.assert_compile( table2.select().order_by(table2.c.otherid). order_by(table2.c.othername.desc()), "SELECT myothertable.otherid, myothertable.othername FROM " "myothertable ORDER BY myothertable.otherid, " "myothertable.othername DESC" ) self.assert_compile( table2.select().order_by(table2.c.otherid). order_by(table2.c.othername.desc() ).order_by(None), "SELECT myothertable.otherid, myothertable.othername " "FROM myothertable" ) self.assert_compile( select( [table2.c.othername, func.count(table2.c.otherid)], group_by=[table2.c.othername]), "SELECT myothertable.othername, " "count(myothertable.otherid) AS count_1 " "FROM myothertable GROUP BY myothertable.othername" ) # generative group by self.assert_compile( select([table2.c.othername, func.count(table2.c.otherid)]). group_by(table2.c.othername), "SELECT myothertable.othername, " "count(myothertable.otherid) AS count_1 " "FROM myothertable GROUP BY myothertable.othername" ) self.assert_compile( select([table2.c.othername, func.count(table2.c.otherid)]). group_by(table2.c.othername).group_by(None), "SELECT myothertable.othername, " "count(myothertable.otherid) AS count_1 " "FROM myothertable" ) self.assert_compile( select([table2.c.othername, func.count(table2.c.otherid)], group_by=[table2.c.othername], order_by=[table2.c.othername]), "SELECT myothertable.othername, " "count(myothertable.otherid) AS count_1 " "FROM myothertable " "GROUP BY myothertable.othername ORDER BY myothertable.othername" ) def test_for_update(self): self.assert_compile( table1.select(table1.c.myid == 7).with_for_update(), "SELECT mytable.myid, mytable.name, mytable.description " "FROM mytable WHERE mytable.myid = :myid_1 FOR UPDATE") # not supported by dialect, should just use update self.assert_compile( table1.select(table1.c.myid == 7).with_for_update(nowait=True), "SELECT mytable.myid, mytable.name, mytable.description " "FROM mytable WHERE mytable.myid = :myid_1 FOR UPDATE") assert_raises_message( exc.ArgumentError, "Unknown for_update argument: 'unknown_mode'", table1.select, table1.c.myid == 7, for_update='unknown_mode' ) def test_alias(self): # test the alias for a table1. column names stay the same, # table name "changes" to "foo". self.assert_compile( select([table1.alias('foo')]), "SELECT foo.myid, foo.name, foo.description FROM mytable AS foo") for dialect in (oracle.dialect(),): self.assert_compile( select([table1.alias('foo')]), "SELECT foo.myid, foo.name, foo.description FROM mytable foo", dialect=dialect) self.assert_compile( select([table1.alias()]), "SELECT mytable_1.myid, mytable_1.name, mytable_1.description " "FROM mytable AS mytable_1") # create a select for a join of two tables. use_labels # means the column names will have labels tablename_columnname, # which become the column keys accessible off the Selectable object. # also, only use one column from the second table and all columns # from the first table1. q = select( [table1, table2.c.otherid], table1.c.myid == table2.c.otherid, use_labels=True ) # make an alias of the "selectable". column names # stay the same (i.e. the labels), table name "changes" to "t2view". a = alias(q, 't2view') # select from that alias, also using labels. two levels of labels # should produce two underscores. # also, reference the column "mytable_myid" off of the t2view alias. self.assert_compile( a.select(a.c.mytable_myid == 9, use_labels=True), "SELECT t2view.mytable_myid AS t2view_mytable_myid, " "t2view.mytable_name " "AS t2view_mytable_name, " "t2view.mytable_description AS t2view_mytable_description, " "t2view.myothertable_otherid AS t2view_myothertable_otherid FROM " "(SELECT mytable.myid AS mytable_myid, " "mytable.name AS mytable_name, " "mytable.description AS mytable_description, " "myothertable.otherid AS " "myothertable_otherid FROM mytable, myothertable " "WHERE mytable.myid = " "myothertable.otherid) AS t2view " "WHERE t2view.mytable_myid = :mytable_myid_1" ) def test_prefix(self): self.assert_compile( table1.select().prefix_with("SQL_CALC_FOUND_ROWS"). prefix_with("SQL_SOME_WEIRD_MYSQL_THING"), "SELECT SQL_CALC_FOUND_ROWS SQL_SOME_WEIRD_MYSQL_THING " "mytable.myid, mytable.name, mytable.description FROM mytable" ) def test_prefix_dialect_specific(self): self.assert_compile( table1.select().prefix_with("SQL_CALC_FOUND_ROWS", dialect='sqlite'). prefix_with("SQL_SOME_WEIRD_MYSQL_THING", dialect='mysql'), "SELECT SQL_SOME_WEIRD_MYSQL_THING " "mytable.myid, mytable.name, mytable.description FROM mytable", dialect=mysql.dialect() ) @testing.emits_warning('.*empty sequence.*') def test_render_binds_as_literal(self): """test a compiler that renders binds inline into SQL in the columns clause.""" dialect = default.DefaultDialect() class Compiler(dialect.statement_compiler): ansi_bind_rules = True dialect.statement_compiler = Compiler self.assert_compile( select([literal("someliteral")]), "SELECT 'someliteral' AS anon_1", dialect=dialect ) self.assert_compile( select([table1.c.myid + 3]), "SELECT mytable.myid + 3 AS anon_1 FROM mytable", dialect=dialect ) self.assert_compile( select([table1.c.myid.in_([4, 5, 6])]), "SELECT mytable.myid IN (4, 5, 6) AS anon_1 FROM mytable", dialect=dialect ) self.assert_compile( select([func.mod(table1.c.myid, 5)]), "SELECT mod(mytable.myid, 5) AS mod_1 FROM mytable", dialect=dialect ) self.assert_compile( select([literal("foo").in_([])]), "SELECT 'foo' != 'foo' AS anon_1", dialect=dialect ) self.assert_compile( select([literal(util.b("foo"))]), "SELECT 'foo' AS anon_1", dialect=dialect ) # test callable self.assert_compile( select([table1.c.myid == bindparam("foo", callable_=lambda: 5)]), "SELECT mytable.myid = 5 AS anon_1 FROM mytable", dialect=dialect ) assert_raises_message( exc.CompileError, "Bind parameter 'foo' without a " "renderable value not allowed here.", bindparam("foo").in_( []).compile, dialect=dialect) def test_literal(self): self.assert_compile(select([literal('foo')]), "SELECT :param_1 AS anon_1") self.assert_compile( select( [ literal("foo") + literal("bar")], from_obj=[table1]), "SELECT :param_1 || :param_2 AS anon_1 FROM mytable") def test_calculated_columns(self): value_tbl = table('values', column('id', Integer), column('val1', Float), column('val2', Float), ) self.assert_compile( select([value_tbl.c.id, (value_tbl.c.val2 - value_tbl.c.val1) / value_tbl.c.val1]), "SELECT values.id, (values.val2 - values.val1) " "/ values.val1 AS anon_1 FROM values" ) self.assert_compile( select([ value_tbl.c.id], (value_tbl.c.val2 - value_tbl.c.val1) / value_tbl.c.val1 > 2.0), "SELECT values.id FROM values WHERE " "(values.val2 - values.val1) / values.val1 > :param_1" ) self.assert_compile( select([value_tbl.c.id], value_tbl.c.val1 / (value_tbl.c.val2 - value_tbl.c.val1) / value_tbl.c.val1 > 2.0), "SELECT values.id FROM values WHERE " "(values.val1 / (values.val2 - values.val1)) " "/ values.val1 > :param_1" ) def test_percent_chars(self): t = table("table%name", column("percent%"), column("%(oneofthese)s"), column("spaces % more spaces"), ) self.assert_compile( t.select(use_labels=True), '''SELECT "table%name"."percent%" AS "table%name_percent%", ''' '''"table%name"."%(oneofthese)s" AS ''' '''"table%name_%(oneofthese)s", ''' '''"table%name"."spaces % more spaces" AS ''' '''"table%name_spaces % ''' '''more spaces" FROM "table%name"''' ) def test_joins(self): self.assert_compile( join(table2, table1, table1.c.myid == table2.c.otherid).select(), "SELECT myothertable.otherid, myothertable.othername, " "mytable.myid, mytable.name, mytable.description FROM " "myothertable JOIN mytable ON mytable.myid = myothertable.otherid" ) self.assert_compile( select( [table1], from_obj=[join(table1, table2, table1.c.myid == table2.c.otherid)] ), "SELECT mytable.myid, mytable.name, mytable.description FROM " "mytable JOIN myothertable ON mytable.myid = myothertable.otherid") self.assert_compile( select( [join(join(table1, table2, table1.c.myid == table2.c.otherid), table3, table1.c.myid == table3.c.userid)] ), "SELECT mytable.myid, mytable.name, mytable.description, " "myothertable.otherid, myothertable.othername, " "thirdtable.userid, " "thirdtable.otherstuff FROM mytable JOIN myothertable " "ON mytable.myid =" " myothertable.otherid JOIN thirdtable ON " "mytable.myid = thirdtable.userid" ) self.assert_compile( join(users, addresses, users.c.user_id == addresses.c.user_id).select(), "SELECT users.user_id, users.user_name, users.password, " "addresses.address_id, addresses.user_id, addresses.street, " "addresses.city, addresses.state, addresses.zip " "FROM users JOIN addresses " "ON users.user_id = addresses.user_id" ) self.assert_compile( select([table1, table2, table3], from_obj=[join(table1, table2, table1.c.myid == table2.c.otherid). outerjoin(table3, table1.c.myid == table3.c.userid)] ), "SELECT mytable.myid, mytable.name, mytable.description, " "myothertable.otherid, myothertable.othername, " "thirdtable.userid," " thirdtable.otherstuff FROM mytable " "JOIN myothertable ON mytable.myid " "= myothertable.otherid LEFT OUTER JOIN thirdtable " "ON mytable.myid =" " thirdtable.userid" ) self.assert_compile( select([table1, table2, table3], from_obj=[outerjoin(table1, join(table2, table3, table2.c.otherid == table3.c.userid), table1.c.myid == table2.c.otherid)] ), "SELECT mytable.myid, mytable.name, mytable.description, " "myothertable.otherid, myothertable.othername, " "thirdtable.userid," " thirdtable.otherstuff FROM mytable LEFT OUTER JOIN " "(myothertable " "JOIN thirdtable ON myothertable.otherid = " "thirdtable.userid) ON " "mytable.myid = myothertable.otherid" ) query = select( [table1, table2], or_( table1.c.name == 'fred', table1.c.myid == 10, table2.c.othername != 'jack', text("EXISTS (select yay from foo where boo = lar)") ), from_obj=[outerjoin(table1, table2, table1.c.myid == table2.c.otherid)] ) self.assert_compile( query, "SELECT mytable.myid, mytable.name, mytable.description, " "myothertable.otherid, myothertable.othername " "FROM mytable LEFT OUTER JOIN myothertable ON mytable.myid = " "myothertable.otherid WHERE mytable.name = :name_1 OR " "mytable.myid = :myid_1 OR myothertable.othername != :othername_1 " "OR EXISTS (select yay from foo where boo = lar)", ) def test_compound_selects(self): assert_raises_message( exc.ArgumentError, "All selectables passed to CompoundSelect " "must have identical numbers of columns; " "select #1 has 2 columns, select #2 has 3", union, table3.select(), table1.select() ) x = union( select([table1], table1.c.myid == 5), select([table1], table1.c.myid == 12), order_by=[table1.c.myid], ) self.assert_compile( x, "SELECT mytable.myid, mytable.name, " "mytable.description " "FROM mytable WHERE " "mytable.myid = :myid_1 UNION " "SELECT mytable.myid, mytable.name, mytable.description " "FROM mytable WHERE mytable.myid = :myid_2 " "ORDER BY mytable.myid") x = union( select([table1]), select([table1]) ) x = union(x, select([table1])) self.assert_compile( x, "(SELECT mytable.myid, mytable.name, mytable.description " "FROM mytable UNION SELECT mytable.myid, mytable.name, " "mytable.description FROM mytable) UNION SELECT mytable.myid," " mytable.name, mytable.description FROM mytable") u1 = union( select([table1.c.myid, table1.c.name]), select([table2]), select([table3]) ) self.assert_compile( u1, "SELECT mytable.myid, mytable.name " "FROM mytable UNION SELECT myothertable.otherid, " "myothertable.othername FROM myothertable " "UNION SELECT thirdtable.userid, thirdtable.otherstuff " "FROM thirdtable") assert u1.corresponding_column(table2.c.otherid) is u1.c.myid self.assert_compile( union( select([table1.c.myid, table1.c.name]), select([table2]), order_by=['myid'], offset=10, limit=5 ), "SELECT mytable.myid, mytable.name " "FROM mytable UNION SELECT myothertable.otherid, " "myothertable.othername " "FROM myothertable ORDER BY myid " # note table name is omitted "LIMIT :param_1 OFFSET :param_2", {'param_1': 5, 'param_2': 10} ) self.assert_compile( union( select([table1.c.myid, table1.c.name, func.max(table1.c.description)], table1.c.name == 'name2', group_by=[table1.c.myid, table1.c.name]), table1.select(table1.c.name == 'name1') ), "SELECT mytable.myid, mytable.name, " "max(mytable.description) AS max_1 " "FROM mytable WHERE mytable.name = :name_1 " "GROUP BY mytable.myid, " "mytable.name UNION SELECT mytable.myid, mytable.name, " "mytable.description " "FROM mytable WHERE mytable.name = :name_2" ) self.assert_compile( union( select([literal(100).label('value')]), select([literal(200).label('value')]) ), "SELECT :param_1 AS value UNION SELECT :param_2 AS value" ) self.assert_compile( union_all( select([table1.c.myid]), union( select([table2.c.otherid]), select([table3.c.userid]), ) ), "SELECT mytable.myid FROM mytable UNION ALL " "(SELECT myothertable.otherid FROM myothertable UNION " "SELECT thirdtable.userid FROM thirdtable)" ) s = select([column('foo'), column('bar')]) # ORDER BY's even though not supported by # all DB's, are rendered if requested self.assert_compile( union( s.order_by("foo"), s.order_by("bar")), "SELECT foo, bar ORDER BY foo UNION SELECT foo, bar ORDER BY bar") # self_group() is honored self.assert_compile( union(s.order_by("foo").self_group(), s.order_by("bar").limit(10).self_group()), "(SELECT foo, bar ORDER BY foo) UNION (SELECT foo, " "bar ORDER BY bar LIMIT :param_1)", {'param_1': 10} ) def test_compound_grouping(self): s = select([column('foo'), column('bar')]).select_from(text('bat')) self.assert_compile( union(union(union(s, s), s), s), "((SELECT foo, bar FROM bat UNION SELECT foo, bar FROM bat) " "UNION SELECT foo, bar FROM bat) UNION SELECT foo, bar FROM bat" ) self.assert_compile( union(s, s, s, s), "SELECT foo, bar FROM bat UNION SELECT foo, bar " "FROM bat UNION SELECT foo, bar FROM bat " "UNION SELECT foo, bar FROM bat" ) self.assert_compile( union(s, union(s, union(s, s))), "SELECT foo, bar FROM bat UNION (SELECT foo, bar FROM bat " "UNION (SELECT foo, bar FROM bat " "UNION SELECT foo, bar FROM bat))" ) self.assert_compile( select([s.alias()]), 'SELECT anon_1.foo, anon_1.bar FROM ' '(SELECT foo, bar FROM bat) AS anon_1' ) self.assert_compile( select([union(s, s).alias()]), 'SELECT anon_1.foo, anon_1.bar FROM ' '(SELECT foo, bar FROM bat UNION ' 'SELECT foo, bar FROM bat) AS anon_1' ) self.assert_compile( select([except_(s, s).alias()]), 'SELECT anon_1.foo, anon_1.bar FROM ' '(SELECT foo, bar FROM bat EXCEPT ' 'SELECT foo, bar FROM bat) AS anon_1' ) # this query sqlite specifically chokes on self.assert_compile( union( except_(s, s), s ), "(SELECT foo, bar FROM bat EXCEPT SELECT foo, bar FROM bat) " "UNION SELECT foo, bar FROM bat" ) self.assert_compile( union( s, except_(s, s), ), "SELECT foo, bar FROM bat " "UNION (SELECT foo, bar FROM bat EXCEPT SELECT foo, bar FROM bat)" ) # this solves it self.assert_compile( union( except_(s, s).alias().select(), s ), "SELECT anon_1.foo, anon_1.bar FROM " "(SELECT foo, bar FROM bat EXCEPT " "SELECT foo, bar FROM bat) AS anon_1 " "UNION SELECT foo, bar FROM bat" ) self.assert_compile( except_( union(s, s), union(s, s) ), "(SELECT foo, bar FROM bat UNION SELECT foo, bar FROM bat) " "EXCEPT (SELECT foo, bar FROM bat UNION SELECT foo, bar FROM bat)" ) s2 = union(s, s) s3 = union(s2, s2) self.assert_compile(s3, "(SELECT foo, bar FROM bat " "UNION SELECT foo, bar FROM bat) " "UNION (SELECT foo, bar FROM bat " "UNION SELECT foo, bar FROM bat)") self.assert_compile( union( intersect(s, s), intersect(s, s) ), "(SELECT foo, bar FROM bat INTERSECT SELECT foo, bar FROM bat) " "UNION (SELECT foo, bar FROM bat INTERSECT " "SELECT foo, bar FROM bat)" ) def test_binds(self): for ( stmt, expected_named_stmt, expected_positional_stmt, expected_default_params_dict, expected_default_params_list, test_param_dict, expected_test_params_dict, expected_test_params_list ) in [ ( select( [table1, table2], and_( table1.c.myid == table2.c.otherid, table1.c.name == bindparam('mytablename') )), "SELECT mytable.myid, mytable.name, mytable.description, " "myothertable.otherid, myothertable.othername FROM mytable, " "myothertable WHERE mytable.myid = myothertable.otherid " "AND mytable.name = :mytablename", "SELECT mytable.myid, mytable.name, mytable.description, " "myothertable.otherid, myothertable.othername FROM mytable, " "myothertable WHERE mytable.myid = myothertable.otherid AND " "mytable.name = ?", {'mytablename': None}, [None], {'mytablename': 5}, {'mytablename': 5}, [5] ), ( select([table1], or_(table1.c.myid == bindparam('myid'), table2.c.otherid == bindparam('myid'))), "SELECT mytable.myid, mytable.name, mytable.description " "FROM mytable, myothertable WHERE mytable.myid = :myid " "OR myothertable.otherid = :myid", "SELECT mytable.myid, mytable.name, mytable.description " "FROM mytable, myothertable WHERE mytable.myid = ? " "OR myothertable.otherid = ?", {'myid': None}, [None, None], {'myid': 5}, {'myid': 5}, [5, 5] ), ( text("SELECT mytable.myid, mytable.name, " "mytable.description FROM " "mytable, myothertable WHERE mytable.myid = :myid OR " "myothertable.otherid = :myid"), "SELECT mytable.myid, mytable.name, mytable.description FROM " "mytable, myothertable WHERE mytable.myid = :myid OR " "myothertable.otherid = :myid", "SELECT mytable.myid, mytable.name, mytable.description FROM " "mytable, myothertable WHERE mytable.myid = ? OR " "myothertable.otherid = ?", {'myid': None}, [None, None], {'myid': 5}, {'myid': 5}, [5, 5] ), ( select([table1], or_(table1.c.myid == bindparam('myid', unique=True), table2.c.otherid == bindparam('myid', unique=True))), "SELECT mytable.myid, mytable.name, mytable.description FROM " "mytable, myothertable WHERE mytable.myid = " ":myid_1 OR myothertable.otherid = :myid_2", "SELECT mytable.myid, mytable.name, mytable.description FROM " "mytable, myothertable WHERE mytable.myid = ? " "OR myothertable.otherid = ?", {'myid_1': None, 'myid_2': None}, [None, None], {'myid_1': 5, 'myid_2': 6}, {'myid_1': 5, 'myid_2': 6}, [5, 6] ), ( bindparam('test', type_=String, required=False) + text("'hi'"), ":test || 'hi'", "? || 'hi'", {'test': None}, [None], {}, {'test': None}, [None] ), ( # testing select.params() here - bindparam() objects # must get required flag set to False select( [table1], or_( table1.c.myid == bindparam('myid'), table2.c.otherid == bindparam('myotherid') )).params({'myid': 8, 'myotherid': 7}), "SELECT mytable.myid, mytable.name, mytable.description FROM " "mytable, myothertable WHERE mytable.myid = " ":myid OR myothertable.otherid = :myotherid", "SELECT mytable.myid, mytable.name, mytable.description FROM " "mytable, myothertable WHERE mytable.myid = " "? OR myothertable.otherid = ?", {'myid': 8, 'myotherid': 7}, [8, 7], {'myid': 5}, {'myid': 5, 'myotherid': 7}, [5, 7] ), ( select([table1], or_(table1.c.myid == bindparam('myid', value=7, unique=True), table2.c.otherid == bindparam('myid', value=8, unique=True))), "SELECT mytable.myid, mytable.name, mytable.description FROM " "mytable, myothertable WHERE mytable.myid = " ":myid_1 OR myothertable.otherid = :myid_2", "SELECT mytable.myid, mytable.name, mytable.description FROM " "mytable, myothertable WHERE mytable.myid = " "? OR myothertable.otherid = ?", {'myid_1': 7, 'myid_2': 8}, [7, 8], {'myid_1': 5, 'myid_2': 6}, {'myid_1': 5, 'myid_2': 6}, [5, 6] ), ]: self.assert_compile(stmt, expected_named_stmt, params=expected_default_params_dict) self.assert_compile(stmt, expected_positional_stmt, dialect=sqlite.dialect()) nonpositional = stmt.compile() positional = stmt.compile(dialect=sqlite.dialect()) pp = positional.params eq_([pp[k] for k in positional.positiontup], expected_default_params_list) eq_(nonpositional.construct_params(test_param_dict), expected_test_params_dict) pp = positional.construct_params(test_param_dict) eq_( [pp[k] for k in positional.positiontup], expected_test_params_list ) # check that params() doesn't modify original statement s = select([table1], or_(table1.c.myid == bindparam('myid'), table2.c.otherid == bindparam('myotherid'))) s2 = s.params({'myid': 8, 'myotherid': 7}) s3 = s2.params({'myid': 9}) assert s.compile().params == {'myid': None, 'myotherid': None} assert s2.compile().params == {'myid': 8, 'myotherid': 7} assert s3.compile().params == {'myid': 9, 'myotherid': 7} # test using same 'unique' param object twice in one compile s = select([table1.c.myid]).where(table1.c.myid == 12).as_scalar() s2 = select([table1, s], table1.c.myid == s) self.assert_compile( s2, "SELECT mytable.myid, mytable.name, mytable.description, " "(SELECT mytable.myid FROM mytable WHERE mytable.myid = " ":myid_1) AS anon_1 FROM mytable WHERE mytable.myid = " "(SELECT mytable.myid FROM mytable WHERE mytable.myid = :myid_1)") positional = s2.compile(dialect=sqlite.dialect()) pp = positional.params assert [pp[k] for k in positional.positiontup] == [12, 12] # check that conflicts with "unique" params are caught s = select([table1], or_(table1.c.myid == 7, table1.c.myid == bindparam('myid_1'))) assert_raises_message(exc.CompileError, "conflicts with unique bind parameter " "of the same name", str, s) s = select([table1], or_(table1.c.myid == 7, table1.c.myid == 8, table1.c.myid == bindparam('myid_1'))) assert_raises_message(exc.CompileError, "conflicts with unique bind parameter " "of the same name", str, s) def _test_binds_no_hash_collision(self): """test that construct_params doesn't corrupt dict due to hash collisions""" total_params = 100000 in_clause = [':in%d' % i for i in range(total_params)] params = dict(('in%d' % i, i) for i in range(total_params)) t = text('text clause %s' % ', '.join(in_clause)) eq_(len(t.bindparams), total_params) c = t.compile() pp = c.construct_params(params) eq_(len(set(pp)), total_params, '%s %s' % (len(set(pp)), len(pp))) eq_(len(set(pp.values())), total_params) def test_bind_as_col(self): t = table('foo', column('id')) s = select([t, literal('lala').label('hoho')]) self.assert_compile(s, "SELECT foo.id, :param_1 AS hoho FROM foo") assert [str(c) for c in s.c] == ["id", "hoho"] def test_bind_callable(self): expr = column('x') == bindparam("key", callable_=lambda: 12) self.assert_compile( expr, "x = :key", {'x': 12} ) def test_bind_params_missing(self): assert_raises_message( exc.InvalidRequestError, r"A value is required for bind parameter 'x'", select( [table1]).where( and_( table1.c.myid == bindparam("x", required=True), table1.c.name == bindparam("y", required=True) ) ).compile().construct_params, params=dict(y=5) ) assert_raises_message( exc.InvalidRequestError, r"A value is required for bind parameter 'x'", select( [table1]).where( table1.c.myid == bindparam( "x", required=True)).compile().construct_params) assert_raises_message( exc.InvalidRequestError, r"A value is required for bind parameter 'x', " "in parameter group 2", select( [table1]).where( and_( table1.c.myid == bindparam("x", required=True), table1.c.name == bindparam("y", required=True) ) ).compile().construct_params, params=dict(y=5), _group_number=2) assert_raises_message( exc.InvalidRequestError, r"A value is required for bind parameter 'x', " "in parameter group 2", select( [table1]).where( table1.c.myid == bindparam( "x", required=True)).compile().construct_params, _group_number=2) def test_tuple(self): self.assert_compile( tuple_(table1.c.myid, table1.c.name).in_( [(1, 'foo'), (5, 'bar')]), "(mytable.myid, mytable.name) IN " "((:param_1, :param_2), (:param_3, :param_4))" ) self.assert_compile( tuple_(table1.c.myid, table1.c.name).in_( [tuple_(table2.c.otherid, table2.c.othername)] ), "(mytable.myid, mytable.name) IN " "((myothertable.otherid, myothertable.othername))" ) self.assert_compile( tuple_(table1.c.myid, table1.c.name).in_( select([table2.c.otherid, table2.c.othername]) ), "(mytable.myid, mytable.name) IN (SELECT " "myothertable.otherid, myothertable.othername FROM myothertable)" ) def test_cast(self): tbl = table('casttest', column('id', Integer), column('v1', Float), column('v2', Float), column('ts', TIMESTAMP), ) def check_results(dialect, expected_results, literal): eq_(len(expected_results), 5, 'Incorrect number of expected results') eq_(str(cast(tbl.c.v1, Numeric).compile(dialect=dialect)), 'CAST(casttest.v1 AS %s)' % expected_results[0]) eq_(str(tbl.c.v1.cast(Numeric).compile(dialect=dialect)), 'CAST(casttest.v1 AS %s)' % expected_results[0]) eq_(str(cast(tbl.c.v1, Numeric(12, 9)).compile(dialect=dialect)), 'CAST(casttest.v1 AS %s)' % expected_results[1]) eq_(str(cast(tbl.c.ts, Date).compile(dialect=dialect)), 'CAST(casttest.ts AS %s)' % expected_results[2]) eq_(str(cast(1234, Text).compile(dialect=dialect)), 'CAST(%s AS %s)' % (literal, expected_results[3])) eq_(str(cast('test', String(20)).compile(dialect=dialect)), 'CAST(%s AS %s)' % (literal, expected_results[4])) # fixme: shoving all of this dialect-specific stuff in one test # is now officialy completely ridiculous AND non-obviously omits # coverage on other dialects. sel = select([tbl, cast(tbl.c.v1, Numeric)]).compile( dialect=dialect) if isinstance(dialect, type(mysql.dialect())): eq_(str(sel), "SELECT casttest.id, casttest.v1, casttest.v2, " "casttest.ts, " "CAST(casttest.v1 AS DECIMAL) AS anon_1 \nFROM casttest") else: eq_(str(sel), "SELECT casttest.id, casttest.v1, casttest.v2, " "casttest.ts, CAST(casttest.v1 AS NUMERIC) AS " "anon_1 \nFROM casttest") # first test with PostgreSQL engine check_results( postgresql.dialect(), [ 'NUMERIC', 'NUMERIC(12, 9)', 'DATE', 'TEXT', 'VARCHAR(20)'], '%(param_1)s') # then the Oracle engine check_results( oracle.dialect(), [ 'NUMERIC', 'NUMERIC(12, 9)', 'DATE', 'CLOB', 'VARCHAR2(20 CHAR)'], ':param_1') # then the sqlite engine check_results(sqlite.dialect(), ['NUMERIC', 'NUMERIC(12, 9)', 'DATE', 'TEXT', 'VARCHAR(20)'], '?') # then the MySQL engine check_results(mysql.dialect(), ['DECIMAL', 'DECIMAL(12, 9)', 'DATE', 'CHAR', 'CHAR(20)'], '%s') self.assert_compile(cast(text('NULL'), Integer), 'CAST(NULL AS INTEGER)', dialect=sqlite.dialect()) self.assert_compile(cast(null(), Integer), 'CAST(NULL AS INTEGER)', dialect=sqlite.dialect()) self.assert_compile(cast(literal_column('NULL'), Integer), 'CAST(NULL AS INTEGER)', dialect=sqlite.dialect()) def test_over(self): self.assert_compile( func.row_number().over(), "row_number() OVER ()" ) self.assert_compile( func.row_number().over( order_by=[table1.c.name, table1.c.description] ), "row_number() OVER (ORDER BY mytable.name, mytable.description)" ) self.assert_compile( func.row_number().over( partition_by=[table1.c.name, table1.c.description] ), "row_number() OVER (PARTITION BY mytable.name, " "mytable.description)" ) self.assert_compile( func.row_number().over( partition_by=[table1.c.name], order_by=[table1.c.description] ), "row_number() OVER (PARTITION BY mytable.name " "ORDER BY mytable.description)" ) self.assert_compile( func.row_number().over( partition_by=table1.c.name, order_by=table1.c.description ), "row_number() OVER (PARTITION BY mytable.name " "ORDER BY mytable.description)" ) self.assert_compile( func.row_number().over( partition_by=table1.c.name, order_by=[table1.c.name, table1.c.description] ), "row_number() OVER (PARTITION BY mytable.name " "ORDER BY mytable.name, mytable.description)" ) self.assert_compile( func.row_number().over( partition_by=[], order_by=[table1.c.name, table1.c.description] ), "row_number() OVER (ORDER BY mytable.name, mytable.description)" ) self.assert_compile( func.row_number().over( partition_by=[table1.c.name, table1.c.description], order_by=[] ), "row_number() OVER (PARTITION BY mytable.name, " "mytable.description)" ) self.assert_compile( func.row_number().over( partition_by=[], order_by=[] ), "row_number() OVER ()" ) self.assert_compile( select([func.row_number().over( order_by=table1.c.description ).label('foo')]), "SELECT row_number() OVER (ORDER BY mytable.description) " "AS foo FROM mytable" ) # test from_obj generation. # from func: self.assert_compile( select([ func.max(table1.c.name).over( partition_by=['description'] ) ]), "SELECT max(mytable.name) OVER (PARTITION BY mytable.description) " "AS anon_1 FROM mytable" ) # from partition_by self.assert_compile( select([ func.row_number().over( partition_by=[table1.c.name] ) ]), "SELECT row_number() OVER (PARTITION BY mytable.name) " "AS anon_1 FROM mytable" ) # from order_by self.assert_compile( select([ func.row_number().over( order_by=table1.c.name ) ]), "SELECT row_number() OVER (ORDER BY mytable.name) " "AS anon_1 FROM mytable" ) # this tests that _from_objects # concantenates OK self.assert_compile( select([column("x") + over(func.foo())]), "SELECT x + foo() OVER () AS anon_1" ) # test a reference to a label that in the referecned selectable; # this resolves expr = (table1.c.myid + 5).label('sum') stmt = select([expr]).alias() self.assert_compile( select([stmt.c.sum, func.row_number().over(order_by=stmt.c.sum)]), "SELECT anon_1.sum, row_number() OVER (ORDER BY anon_1.sum) " "AS anon_2 FROM (SELECT mytable.myid + :myid_1 AS sum " "FROM mytable) AS anon_1" ) # test a reference to a label that's at the same level as the OVER # in the columns clause; doesn't resolve expr = (table1.c.myid + 5).label('sum') self.assert_compile( select([expr, func.row_number().over(order_by=expr)]), "SELECT mytable.myid + :myid_1 AS sum, " "row_number() OVER " "(ORDER BY mytable.myid + :myid_1) AS anon_1 FROM mytable" ) def test_date_between(self): import datetime table = Table('dt', metadata, Column('date', Date)) self.assert_compile( table.select(table.c.date.between(datetime.date(2006, 6, 1), datetime.date(2006, 6, 5))), "SELECT dt.date FROM dt WHERE dt.date BETWEEN :date_1 AND :date_2", checkparams={'date_1': datetime.date(2006, 6, 1), 'date_2': datetime.date(2006, 6, 5)}) self.assert_compile( table.select(sql.between(table.c.date, datetime.date(2006, 6, 1), datetime.date(2006, 6, 5))), "SELECT dt.date FROM dt WHERE dt.date BETWEEN :date_1 AND :date_2", checkparams={'date_1': datetime.date(2006, 6, 1), 'date_2': datetime.date(2006, 6, 5)}) def test_delayed_col_naming(self): my_str = Column(String) sel1 = select([my_str]) assert_raises_message( exc.InvalidRequestError, "Cannot initialize a sub-selectable with this Column", lambda: sel1.c ) # calling label or as_scalar doesn't compile # anything. sel2 = select([func.substr(my_str, 2, 3)]).label('my_substr') assert_raises_message( exc.CompileError, "Cannot compile Column object until its 'name' is assigned.", str, sel2 ) sel3 = select([my_str]).as_scalar() assert_raises_message( exc.CompileError, "Cannot compile Column object until its 'name' is assigned.", str, sel3 ) my_str.name = 'foo' self.assert_compile( sel1, "SELECT foo", ) self.assert_compile( sel2, '(SELECT substr(foo, :substr_2, :substr_3) AS substr_1)', ) self.assert_compile( sel3, "(SELECT foo)" ) def test_naming(self): # TODO: the part where we check c.keys() are not "compile" tests, they # belong probably in test_selectable, or some broken up # version of that suite f1 = func.hoho(table1.c.name) s1 = select([table1.c.myid, table1.c.myid.label('foobar'), f1, func.lala(table1.c.name).label('gg')]) eq_( list(s1.c.keys()), ['myid', 'foobar', str(f1), 'gg'] ) meta = MetaData() t1 = Table('mytable', meta, Column('col1', Integer)) exprs = ( table1.c.myid == 12, func.hoho(table1.c.myid), cast(table1.c.name, Numeric), literal('x'), ) for col, key, expr, lbl in ( (table1.c.name, 'name', 'mytable.name', None), (exprs[0], str(exprs[0]), 'mytable.myid = :myid_1', 'anon_1'), (exprs[1], str(exprs[1]), 'hoho(mytable.myid)', 'hoho_1'), (exprs[2], str(exprs[2]), 'CAST(mytable.name AS NUMERIC)', 'anon_1'), (t1.c.col1, 'col1', 'mytable.col1', None), (column('some wacky thing'), 'some wacky thing', '"some wacky thing"', ''), (exprs[3], exprs[3].key, ":param_1", "anon_1") ): if getattr(col, 'table', None) is not None: t = col.table else: t = table1 s1 = select([col], from_obj=t) assert list(s1.c.keys()) == [key], list(s1.c.keys()) if lbl: self.assert_compile( s1, "SELECT %s AS %s FROM mytable" % (expr, lbl)) else: self.assert_compile(s1, "SELECT %s FROM mytable" % (expr,)) s1 = select([s1]) if lbl: self.assert_compile( s1, "SELECT %s FROM (SELECT %s AS %s FROM mytable)" % (lbl, expr, lbl)) elif col.table is not None: # sqlite rule labels subquery columns self.assert_compile( s1, "SELECT %s FROM (SELECT %s AS %s FROM mytable)" % (key, expr, key)) else: self.assert_compile(s1, "SELECT %s FROM (SELECT %s FROM mytable)" % (expr, expr)) def test_hints(self): s = select([table1.c.myid]).with_hint(table1, "test hint %(name)s") s2 = select([table1.c.myid]).\ with_hint(table1, "index(%(name)s idx)", 'oracle').\ with_hint(table1, "WITH HINT INDEX idx", 'sybase') a1 = table1.alias() s3 = select([a1.c.myid]).with_hint(a1, "index(%(name)s hint)") subs4 = select([ table1, table2 ]).select_from( table1.join(table2, table1.c.myid == table2.c.otherid)).\ with_hint(table1, 'hint1') s4 = select([table3]).select_from( table3.join( subs4, subs4.c.othername == table3.c.otherstuff ) ).\ with_hint(table3, 'hint3') t1 = table('QuotedName', column('col1')) s6 = select([t1.c.col1]).where(t1.c.col1 > 10).\ with_hint(t1, '%(name)s idx1') a2 = t1.alias('SomeName') s7 = select([a2.c.col1]).where(a2.c.col1 > 10).\ with_hint(a2, '%(name)s idx1') mysql_d, oracle_d, sybase_d = \ mysql.dialect(), \ oracle.dialect(), \ sybase.dialect() for stmt, dialect, expected in [ (s, mysql_d, "SELECT mytable.myid FROM mytable test hint mytable"), (s, oracle_d, "SELECT /*+ test hint mytable */ mytable.myid FROM mytable"), (s, sybase_d, "SELECT mytable.myid FROM mytable test hint mytable"), (s2, mysql_d, "SELECT mytable.myid FROM mytable"), (s2, oracle_d, "SELECT /*+ index(mytable idx) */ mytable.myid FROM mytable"), (s2, sybase_d, "SELECT mytable.myid FROM mytable WITH HINT INDEX idx"), (s3, mysql_d, "SELECT mytable_1.myid FROM mytable AS mytable_1 " "index(mytable_1 hint)"), (s3, oracle_d, "SELECT /*+ index(mytable_1 hint) */ mytable_1.myid FROM " "mytable mytable_1"), (s3, sybase_d, "SELECT mytable_1.myid FROM mytable AS mytable_1 " "index(mytable_1 hint)"), (s4, mysql_d, "SELECT thirdtable.userid, thirdtable.otherstuff " "FROM thirdtable " "hint3 INNER JOIN (SELECT mytable.myid, mytable.name, " "mytable.description, myothertable.otherid, " "myothertable.othername FROM mytable hint1 INNER " "JOIN myothertable ON mytable.myid = myothertable.otherid) " "ON othername = thirdtable.otherstuff"), (s4, sybase_d, "SELECT thirdtable.userid, thirdtable.otherstuff " "FROM thirdtable " "hint3 JOIN (SELECT mytable.myid, mytable.name, " "mytable.description, myothertable.otherid, " "myothertable.othername FROM mytable hint1 " "JOIN myothertable ON mytable.myid = myothertable.otherid) " "ON othername = thirdtable.otherstuff"), (s4, oracle_d, "SELECT /*+ hint3 */ thirdtable.userid, thirdtable.otherstuff " "FROM thirdtable JOIN (SELECT /*+ hint1 */ mytable.myid," " mytable.name, mytable.description, myothertable.otherid," " myothertable.othername FROM mytable JOIN myothertable ON" " mytable.myid = myothertable.otherid) ON othername =" " thirdtable.otherstuff"), # TODO: figure out dictionary ordering solution here # (s5, oracle_d, # "SELECT /*+ hint3 */ /*+ hint1 */ thirdtable.userid, " # "thirdtable.otherstuff " # "FROM thirdtable JOIN (SELECT mytable.myid," # " mytable.name, mytable.description, myothertable.otherid," # " myothertable.othername FROM mytable JOIN myothertable ON" # " mytable.myid = myothertable.otherid) ON othername =" # " thirdtable.otherstuff"), (s6, oracle_d, """SELECT /*+ "QuotedName" idx1 */ "QuotedName".col1 """ """FROM "QuotedName" WHERE "QuotedName".col1 > :col1_1"""), (s7, oracle_d, """SELECT /*+ "SomeName" idx1 */ "SomeName".col1 FROM """ """"QuotedName" "SomeName" WHERE "SomeName".col1 > :col1_1"""), ]: self.assert_compile( stmt, expected, dialect=dialect ) def test_statement_hints(self): stmt = select([table1.c.myid]).\ with_statement_hint("test hint one").\ with_statement_hint("test hint two", 'mysql') self.assert_compile( stmt, "SELECT mytable.myid FROM mytable test hint one", ) self.assert_compile( stmt, "SELECT mytable.myid FROM mytable test hint one test hint two", dialect='mysql' ) def test_literal_as_text_fromstring(self): self.assert_compile( and_(text("a"), text("b")), "a AND b" ) def test_literal_as_text_nonstring_raise(self): assert_raises(exc.ArgumentError, and_, ("a",), ("b",) ) class UnsupportedTest(fixtures.TestBase): def test_unsupported_element_str_visit_name(self): from sqlalchemy.sql.expression import ClauseElement class SomeElement(ClauseElement): __visit_name__ = 'some_element' assert_raises_message( exc.UnsupportedCompilationError, r"Compiler ", SomeElement().compile ) def test_unsupported_element_meth_visit_name(self): from sqlalchemy.sql.expression import ClauseElement class SomeElement(ClauseElement): @classmethod def __visit_name__(cls): return "some_element" assert_raises_message( exc.UnsupportedCompilationError, r"Compiler ", SomeElement().compile ) def test_unsupported_operator(self): from sqlalchemy.sql.expression import BinaryExpression def myop(x, y): pass binary = BinaryExpression(column("foo"), column("bar"), myop) assert_raises_message( exc.UnsupportedCompilationError, r"Compiler