path: root/test/dialect/oracle/test_compiler.py

# coding: utf-8


from sqlalchemy.testing import eq_
from sqlalchemy import types as sqltypes, exc, schema
from sqlalchemy.sql import table, column
from sqlalchemy.testing import (fixtures,
                                AssertsExecutionResults,
                                AssertsCompiledSQL)
from sqlalchemy import testing
from sqlalchemy import Integer, Text, LargeBinary, Unicode, UniqueConstraint,\
    Index, MetaData, select, inspect, ForeignKey, String, func, \
    TypeDecorator, bindparam, Numeric, TIMESTAMP, CHAR, text, \
    literal_column, VARCHAR, create_engine, Date, NVARCHAR, \
    ForeignKeyConstraint, Sequence, Float, DateTime, cast, UnicodeText, \
    union, except_, type_coerce, or_, outerjoin, DATE, NCHAR, outparam, \
    PrimaryKeyConstraint, FLOAT
from sqlalchemy.util import u, b
from sqlalchemy import util
from sqlalchemy.testing import assert_raises, assert_raises_message
from sqlalchemy.testing.engines import testing_engine
from sqlalchemy.dialects.oracle import cx_oracle, base as oracle
from sqlalchemy.engine import default
import decimal
from sqlalchemy.engine import url
from sqlalchemy.testing.schema import Table, Column
import datetime
import os
from sqlalchemy import sql
from sqlalchemy.testing.mock import Mock


class CompileTest(fixtures.TestBase, AssertsCompiledSQL):
    __dialect__ = "oracle"

    def test_true_false(self):
        self.assert_compile(
            sql.false(), "0"
        )
        self.assert_compile(
            sql.true(),
            "1"
        )

    def test_owner(self):
        meta = MetaData()
        parent = Table('parent', meta, Column('id', Integer,
                       primary_key=True), Column('name', String(50)),
                       schema='ed')
        child = Table('child', meta, Column('id', Integer,
                      primary_key=True), Column('parent_id', Integer,
                      ForeignKey('ed.parent.id')), schema='ed')
        self.assert_compile(parent.join(child),
                            'ed.parent JOIN ed.child ON ed.parent.id = '
                            'ed.child.parent_id')

    def test_subquery(self):
        t = table('sometable', column('col1'), column('col2'))
        s = select([t])
        s = select([s.c.col1, s.c.col2])

        self.assert_compile(s, "SELECT col1, col2 FROM (SELECT "
                               "sometable.col1 AS col1, sometable.col2 "
                               "AS col2 FROM sometable)")

    def test_bindparam_quote(self):
        """test that bound parameters take on quoting for reserved words,
        column names quote flag enabled."""
        # note: this is only in cx_oracle at the moment.  not sure
        # what other hypothetical oracle dialects might need

        self.assert_compile(
            bindparam("option"), ':"option"'
        )
        self.assert_compile(
            bindparam("plain"), ':plain'
        )
        t = Table("s", MetaData(), Column('plain', Integer, quote=True))
        self.assert_compile(
            t.insert().values(plain=5),
            'INSERT INTO s ("plain") VALUES (:"plain")'
        )
        self.assert_compile(
            t.update().values(plain=5), 'UPDATE s SET "plain"=:"plain"'
        )

    def test_cte(self):
        part = table(
            'part',
            column('part'),
            column('sub_part'),
            column('quantity')
        )

        included_parts = select([
            part.c.sub_part, part.c.part, part.c.quantity
        ]).where(part.c.part == "p1").\
            cte(name="included_parts", recursive=True).\
            suffix_with(
                "search depth first by part set ord1",
                "cycle part set y_cycle to 1 default 0", dialect='oracle')

        incl_alias = included_parts.alias("pr1")
        parts_alias = part.alias("p")
        included_parts = included_parts.union_all(
            select([
                parts_alias.c.sub_part,
                parts_alias.c.part, parts_alias.c.quantity
            ]).where(parts_alias.c.part == incl_alias.c.sub_part)
        )

        q = select([
            included_parts.c.sub_part,
            func.sum(included_parts.c.quantity).label('total_quantity')]).\
            group_by(included_parts.c.sub_part)

        self.assert_compile(
            q,
            "WITH included_parts(sub_part, part, quantity) AS "
            "(SELECT part.sub_part AS sub_part, part.part AS part, "
            "part.quantity AS quantity FROM part WHERE part.part = :part_1 "
            "UNION ALL SELECT p.sub_part AS sub_part, p.part AS part, "
            "p.quantity AS quantity FROM part p, included_parts pr1 "
            "WHERE p.part = pr1.sub_part) "
            "search depth first by part set ord1 cycle part set "
            "y_cycle to 1 default 0  "
            "SELECT included_parts.sub_part, sum(included_parts.quantity) "
            "AS total_quantity FROM included_parts "
            "GROUP BY included_parts.sub_part"
        )

    def test_limit(self):
        t = table('sometable', column('col1'), column('col2'))
        s = select([t])
        c = s.compile(dialect=oracle.OracleDialect())
        assert t.c.col1 in set(c._create_result_map()['col1'][1])
        s = select([t]).limit(10).offset(20)
        self.assert_compile(s,
                            'SELECT col1, col2 FROM (SELECT col1, '
                            'col2, ROWNUM AS ora_rn FROM (SELECT '
                            'sometable.col1 AS col1, sometable.col2 AS '
                            'col2 FROM sometable) WHERE ROWNUM <= '
                            ':param_1 + :param_2) WHERE ora_rn > :param_2',
                            checkparams={'param_1': 10, 'param_2': 20})

        c = s.compile(dialect=oracle.OracleDialect())
        eq_(len(c._result_columns), 2)
        assert t.c.col1 in set(c._create_result_map()['col1'][1])

        s2 = select([s.c.col1, s.c.col2])
        self.assert_compile(s2,
                            'SELECT col1, col2 FROM (SELECT col1, col2 '
                            'FROM (SELECT col1, col2, ROWNUM AS ora_rn '
                            'FROM (SELECT sometable.col1 AS col1, '
                            'sometable.col2 AS col2 FROM sometable) '
                            'WHERE ROWNUM <= :param_1 + :param_2) '
                            'WHERE ora_rn > :param_2)',
                            checkparams={'param_1': 10, 'param_2': 20})

        self.assert_compile(s2,
                            'SELECT col1, col2 FROM (SELECT col1, col2 '
                            'FROM (SELECT col1, col2, ROWNUM AS ora_rn '
                            'FROM (SELECT sometable.col1 AS col1, '
                            'sometable.col2 AS col2 FROM sometable) '
                            'WHERE ROWNUM <= :param_1 + :param_2) '
                            'WHERE ora_rn > :param_2)')
        c = s2.compile(dialect=oracle.OracleDialect())
        eq_(len(c._result_columns), 2)
        assert s.c.col1 in set(c._create_result_map()['col1'][1])

        s = select([t]).limit(10).offset(20).order_by(t.c.col2)
        self.assert_compile(s,
                            'SELECT col1, col2 FROM (SELECT col1, '
                            'col2, ROWNUM AS ora_rn FROM (SELECT '
                            'sometable.col1 AS col1, sometable.col2 AS '
                            'col2 FROM sometable ORDER BY '
                            'sometable.col2) WHERE ROWNUM <= '
                            ':param_1 + :param_2) WHERE ora_rn > :param_2',
                            checkparams={'param_1': 10, 'param_2': 20}
                            )
        c = s.compile(dialect=oracle.OracleDialect())
        eq_(len(c._result_columns), 2)
        assert t.c.col1 in set(c._create_result_map()['col1'][1])

        s = select([t], for_update=True).limit(10).order_by(t.c.col2)
        self.assert_compile(s,
                            'SELECT col1, col2 FROM (SELECT '
                            'sometable.col1 AS col1, sometable.col2 AS '
                            'col2 FROM sometable ORDER BY '
                            'sometable.col2) WHERE ROWNUM <= :param_1 '
                            'FOR UPDATE')

        s = select([t],
                   for_update=True).limit(10).offset(20).order_by(t.c.col2)
        self.assert_compile(s,
                            'SELECT col1, col2 FROM (SELECT col1, '
                            'col2, ROWNUM AS ora_rn FROM (SELECT '
                            'sometable.col1 AS col1, sometable.col2 AS '
                            'col2 FROM sometable ORDER BY '
                            'sometable.col2) WHERE ROWNUM <= '
                            ':param_1 + :param_2) WHERE ora_rn > :param_2 FOR '
                            'UPDATE')

    def test_for_update(self):
        table1 = table('mytable',
                       column('myid'), column('name'), column('description'))

        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")

        self.assert_compile(
            table1
            .select(table1.c.myid == 7)
            .with_for_update(of=table1.c.myid),
            "SELECT mytable.myid, mytable.name, mytable.description "
            "FROM mytable WHERE mytable.myid = :myid_1 "
            "FOR UPDATE OF mytable.myid")

        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 NOWAIT")

        self.assert_compile(
            table1
            .select(table1.c.myid == 7)
            .with_for_update(nowait=True, of=table1.c.myid),
            "SELECT mytable.myid, mytable.name, mytable.description "
            "FROM mytable WHERE mytable.myid = :myid_1 "
            "FOR UPDATE OF mytable.myid NOWAIT")

        self.assert_compile(
            table1
            .select(table1.c.myid == 7)
            .with_for_update(nowait=True, of=[table1.c.myid, table1.c.name]),
            "SELECT mytable.myid, mytable.name, mytable.description "
            "FROM mytable WHERE mytable.myid = :myid_1 FOR UPDATE OF "
            "mytable.myid, mytable.name NOWAIT")

        self.assert_compile(
            table1.select(table1.c.myid == 7)
            .with_for_update(skip_locked=True,
                             of=[table1.c.myid, table1.c.name]),
            "SELECT mytable.myid, mytable.name, mytable.description "
            "FROM mytable WHERE mytable.myid = :myid_1 FOR UPDATE OF "
            "mytable.myid, mytable.name SKIP LOCKED")

        # key_share has no effect
        self.assert_compile(
            table1.select(table1.c.myid == 7).with_for_update(key_share=True),
            "SELECT mytable.myid, mytable.name, mytable.description "
            "FROM mytable WHERE mytable.myid = :myid_1 FOR UPDATE")

        # read has no effect
        self.assert_compile(
            table1
            .select(table1.c.myid == 7)
            .with_for_update(read=True, key_share=True),
            "SELECT mytable.myid, mytable.name, mytable.description "
            "FROM mytable WHERE mytable.myid = :myid_1 FOR UPDATE")

        ta = table1.alias()
        self.assert_compile(
            ta
            .select(ta.c.myid == 7)
            .with_for_update(of=[ta.c.myid, ta.c.name]),
            "SELECT mytable_1.myid, mytable_1.name, mytable_1.description "
            "FROM mytable mytable_1 "
            "WHERE mytable_1.myid = :myid_1 FOR UPDATE OF "
            "mytable_1.myid, mytable_1.name"
        )

    def test_for_update_of_w_limit_adaption_col_present(self):
        table1 = table('mytable', column('myid'), column('name'))

        self.assert_compile(
            select([table1.c.myid, table1.c.name]).
            where(table1.c.myid == 7).
            with_for_update(nowait=True, of=table1.c.name).
            limit(10),
            "SELECT myid, name FROM "
            "(SELECT mytable.myid AS myid, mytable.name AS name "
            "FROM mytable WHERE mytable.myid = :myid_1) "
            "WHERE ROWNUM <= :param_1 FOR UPDATE OF name NOWAIT",
        )

    def test_for_update_of_w_limit_adaption_col_unpresent(self):
        table1 = table('mytable', column('myid'), column('name'))

        self.assert_compile(
            select([table1.c.myid]).
            where(table1.c.myid == 7).
            with_for_update(nowait=True, of=table1.c.name).
            limit(10),
            "SELECT myid FROM "
            "(SELECT mytable.myid AS myid, mytable.name AS name "
            "FROM mytable WHERE mytable.myid = :myid_1) "
            "WHERE ROWNUM <= :param_1 FOR UPDATE OF name NOWAIT",
        )

    def test_for_update_of_w_limit_offset_adaption_col_present(self):
        table1 = table('mytable', column('myid'), column('name'))

        self.assert_compile(
            select([table1.c.myid, table1.c.name]).
            where(table1.c.myid == 7).
            with_for_update(nowait=True, of=table1.c.name).
            limit(10).offset(50),
            "SELECT myid, name FROM (SELECT myid, name, ROWNUM AS ora_rn "
            "FROM (SELECT mytable.myid AS myid, mytable.name AS name "
            "FROM mytable WHERE mytable.myid = :myid_1) "
            "WHERE ROWNUM <= :param_1 + :param_2) WHERE ora_rn > :param_2 "
            "FOR UPDATE OF name NOWAIT",
        )

    def test_for_update_of_w_limit_offset_adaption_col_unpresent(self):
        table1 = table('mytable', column('myid'), column('name'))

        self.assert_compile(
            select([table1.c.myid]).
            where(table1.c.myid == 7).
            with_for_update(nowait=True, of=table1.c.name).
            limit(10).offset(50),
            "SELECT myid FROM (SELECT myid, ROWNUM AS ora_rn, name "
            "FROM (SELECT mytable.myid AS myid, mytable.name AS name "
            "FROM mytable WHERE mytable.myid = :myid_1) "
            "WHERE ROWNUM <= :param_1 + :param_2) WHERE ora_rn > :param_2 "
            "FOR UPDATE OF name NOWAIT",
        )

    def test_for_update_of_w_limit_offset_adaption_partial_col_unpresent(self):
        table1 = table('mytable', column('myid'), column('foo'), column('bar'))

        self.assert_compile(
            select([table1.c.myid, table1.c.bar]).
            where(table1.c.myid == 7).
            with_for_update(nowait=True, of=[table1.c.foo, table1.c.bar]).
            limit(10).offset(50),
            "SELECT myid, bar FROM (SELECT myid, bar, ROWNUM AS ora_rn, "
            "foo FROM (SELECT mytable.myid AS myid, mytable.bar AS bar, "
            "mytable.foo AS foo FROM mytable WHERE mytable.myid = :myid_1) "
            "WHERE ROWNUM <= :param_1 + :param_2) WHERE ora_rn > :param_2 "
            "FOR UPDATE OF foo, bar NOWAIT"
        )

    def test_limit_preserves_typing_information(self):
        class MyType(TypeDecorator):
            impl = Integer

        stmt = select([type_coerce(column('x'), MyType).label('foo')]).limit(1)
        dialect = oracle.dialect()
        compiled = stmt.compile(dialect=dialect)
        assert isinstance(compiled._create_result_map()['foo'][-1], MyType)

    def test_use_binds_for_limits_disabled(self):
        t = table('sometable', column('col1'), column('col2'))
        dialect = oracle.OracleDialect(use_binds_for_limits=False)

        self.assert_compile(
            select([t]).limit(10),
            "SELECT col1, col2 FROM (SELECT sometable.col1 AS col1, "
            "sometable.col2 AS col2 FROM sometable) WHERE ROWNUM <= 10",
            dialect=dialect)

        self.assert_compile(
            select([t]).offset(10),
            "SELECT col1, col2 FROM (SELECT col1, col2, ROWNUM AS ora_rn "
            "FROM (SELECT sometable.col1 AS col1, sometable.col2 AS col2 "
            "FROM sometable)) WHERE ora_rn > 10",
            dialect=dialect)

        self.assert_compile(
            select([t]).limit(10).offset(10),
            "SELECT col1, col2 FROM (SELECT col1, col2, ROWNUM AS ora_rn "
            "FROM (SELECT sometable.col1 AS col1, sometable.col2 AS col2 "
            "FROM sometable) WHERE ROWNUM <= 20) WHERE ora_rn > 10",
            dialect=dialect)

    def test_use_binds_for_limits_enabled(self):
        t = table('sometable', column('col1'), column('col2'))
        dialect = oracle.OracleDialect(use_binds_for_limits=True)

        self.assert_compile(
            select([t]).limit(10),
            "SELECT col1, col2 FROM (SELECT sometable.col1 AS col1, "
            "sometable.col2 AS col2 FROM sometable) WHERE ROWNUM "
            "<= :param_1",
            dialect=dialect)

        self.assert_compile(
            select([t]).offset(10),
            "SELECT col1, col2 FROM (SELECT col1, col2, ROWNUM AS ora_rn "
            "FROM (SELECT sometable.col1 AS col1, sometable.col2 AS col2 "
            "FROM sometable)) WHERE ora_rn > :param_1",
            dialect=dialect)

        self.assert_compile(
            select([t]).limit(10).offset(10),
            "SELECT col1, col2 FROM (SELECT col1, col2, ROWNUM AS ora_rn "
            "FROM (SELECT sometable.col1 AS col1, sometable.col2 AS col2 "
            "FROM sometable) WHERE ROWNUM <= :param_1 + :param_2) "
            "WHERE ora_rn > :param_2",
            dialect=dialect,
            checkparams={'param_1': 10, 'param_2': 10})

    def test_long_labels(self):
        dialect = default.DefaultDialect()
        dialect.max_identifier_length = 30

        ora_dialect = oracle.dialect()

        m = MetaData()
        a_table = Table(
            'thirty_characters_table_xxxxxx',
            m,
            Column('id', Integer, primary_key=True)
        )

        other_table = Table(
            'other_thirty_characters_table_',
            m,
            Column('id', Integer, primary_key=True),
            Column('thirty_characters_table_id',
                   Integer,
                   ForeignKey('thirty_characters_table_xxxxxx.id'),
                   primary_key=True))

        anon = a_table.alias()
        self.assert_compile(select([other_table,
                            anon]).
                            select_from(
                                other_table.outerjoin(anon)).apply_labels(),
                            'SELECT other_thirty_characters_table_.id '
                            'AS other_thirty_characters__1, '
                            'other_thirty_characters_table_.thirty_char'
                            'acters_table_id AS other_thirty_characters'
                            '__2, thirty_characters_table__1.id AS '
                            'thirty_characters_table__3 FROM '
                            'other_thirty_characters_table_ LEFT OUTER '
                            'JOIN thirty_characters_table_xxxxxx AS '
                            'thirty_characters_table__1 ON '
                            'thirty_characters_table__1.id = '
                            'other_thirty_characters_table_.thirty_char'
                            'acters_table_id', dialect=dialect)
        self.assert_compile(select([other_table,
                            anon]).select_from(
                                other_table.outerjoin(anon)).apply_labels(),
                            'SELECT other_thirty_characters_table_.id '
                            'AS other_thirty_characters__1, '
                            'other_thirty_characters_table_.thirty_char'
                            'acters_table_id AS other_thirty_characters'
                            '__2, thirty_characters_table__1.id AS '
                            'thirty_characters_table__3 FROM '
                            'other_thirty_characters_table_ LEFT OUTER '
                            'JOIN thirty_characters_table_xxxxxx '
                            'thirty_characters_table__1 ON '
                            'thirty_characters_table__1.id = '
                            'other_thirty_characters_table_.thirty_char'
                            'acters_table_id', dialect=ora_dialect)

    def test_outer_join(self):
        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),
        )

        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, '
                            'myothertable WHERE (mytable.name = '
                            ':name_1 OR mytable.myid = :myid_1 OR '
                            'myothertable.othername != :othername_1 OR '
                            'EXISTS (select yay from foo where boo = '
                            'lar)) AND mytable.myid = '
                            'myothertable.otherid(+)',
                            dialect=oracle.OracleDialect(use_ansi=False))
        query = table1.outerjoin(table2,
                                 table1.c.myid == table2.c.otherid) \
                      .outerjoin(table3, table3.c.userid == table2.c.otherid)
        self.assert_compile(query.select(),
                            'SELECT mytable.myid, mytable.name, '
                            'mytable.description, myothertable.otherid,'
                            ' myothertable.othername, '
                            'thirdtable.userid, thirdtable.otherstuff '
                            'FROM mytable LEFT OUTER JOIN myothertable '
                            'ON mytable.myid = myothertable.otherid '
                            'LEFT OUTER JOIN thirdtable ON '
                            'thirdtable.userid = myothertable.otherid')

        self.assert_compile(query.select(),
                            'SELECT mytable.myid, mytable.name, '
                            'mytable.description, myothertable.otherid,'
                            ' myothertable.othername, '
                            'thirdtable.userid, thirdtable.otherstuff '
                            'FROM mytable, myothertable, thirdtable '
                            'WHERE thirdtable.userid(+) = '
                            'myothertable.otherid AND mytable.myid = '
                            'myothertable.otherid(+)',
                            dialect=oracle.dialect(use_ansi=False))
        query = table1.join(table2,
                            table1.c.myid == table2.c.otherid) \
                      .join(table3, table3.c.userid == table2.c.otherid)
        self.assert_compile(query.select(),
                            'SELECT mytable.myid, mytable.name, '
                            'mytable.description, myothertable.otherid,'
                            ' myothertable.othername, '
                            'thirdtable.userid, thirdtable.otherstuff '
                            'FROM mytable, myothertable, thirdtable '
                            'WHERE thirdtable.userid = '
                            'myothertable.otherid AND mytable.myid = '
                            'myothertable.otherid',
                            dialect=oracle.dialect(use_ansi=False))
        query = table1.join(table2,
                            table1.c.myid == table2.c.otherid) \
                      .outerjoin(table3, table3.c.userid == table2.c.otherid)
        self.assert_compile(query.select().order_by(table1.c.name).
                            limit(10).offset(5),
                            'SELECT myid, name, description, otherid, '
                            'othername, userid, otherstuff FROM '
                            '(SELECT myid, name, description, otherid, '
                            'othername, userid, otherstuff, ROWNUM AS '
                            'ora_rn FROM (SELECT mytable.myid AS myid, '
                            'mytable.name AS name, mytable.description '
                            'AS description, myothertable.otherid AS '
                            'otherid, myothertable.othername AS '
                            'othername, thirdtable.userid AS userid, '
                            'thirdtable.otherstuff AS otherstuff FROM '
                            'mytable, myothertable, thirdtable WHERE '
                            'thirdtable.userid(+) = '
                            'myothertable.otherid AND mytable.myid = '
                            'myothertable.otherid ORDER BY mytable.name) '
                            'WHERE ROWNUM <= :param_1 + :param_2) '
                            'WHERE ora_rn > :param_2',
                            checkparams={'param_1': 10, 'param_2': 5},
                            dialect=oracle.dialect(use_ansi=False))

        subq = select([table1]).select_from(
            table1.outerjoin(table2, table1.c.myid == table2.c.otherid)) \
            .alias()
        q = select([table3]).select_from(
            table3.outerjoin(subq, table3.c.userid == subq.c.myid))

        self.assert_compile(q,
                            'SELECT thirdtable.userid, '
                            'thirdtable.otherstuff FROM thirdtable '
                            'LEFT OUTER JOIN (SELECT mytable.myid AS '
                            'myid, mytable.name AS name, '
                            'mytable.description AS description FROM '
                            'mytable LEFT OUTER JOIN myothertable ON '
                            'mytable.myid = myothertable.otherid) '
                            'anon_1 ON thirdtable.userid = anon_1.myid',
                            dialect=oracle.dialect(use_ansi=True))

        self.assert_compile(q,
                            'SELECT thirdtable.userid, '
                            'thirdtable.otherstuff FROM thirdtable, '
                            '(SELECT mytable.myid AS myid, '
                            'mytable.name AS name, mytable.description '
                            'AS description FROM mytable, myothertable '
                            'WHERE mytable.myid = myothertable.otherid('
                            '+)) anon_1 WHERE thirdtable.userid = '
                            'anon_1.myid(+)',
                            dialect=oracle.dialect(use_ansi=False))

        q = select([table1.c.name]).where(table1.c.name == 'foo')
        self.assert_compile(q,
                            'SELECT mytable.name FROM mytable WHERE '
                            'mytable.name = :name_1',
                            dialect=oracle.dialect(use_ansi=False))
        subq = select([table3.c.otherstuff]) \
            .where(table3.c.otherstuff == table1.c.name).label('bar')
        q = select([table1.c.name, subq])
        self.assert_compile(q,
                            'SELECT mytable.name, (SELECT '
                            'thirdtable.otherstuff FROM thirdtable '
                            'WHERE thirdtable.otherstuff = '
                            'mytable.name) AS bar FROM mytable',
                            dialect=oracle.dialect(use_ansi=False))

    def test_nonansi_nested_right_join(self):
        a = table('a', column('a'))
        b = table('b', column('b'))
        c = table('c', column('c'))

        j = a.join(b.join(c, b.c.b == c.c.c), a.c.a == b.c.b)

        self.assert_compile(
            select([j]),
            "SELECT a.a, b.b, c.c FROM a, b, c "
            "WHERE a.a = b.b AND b.b = c.c",
            dialect=oracle.OracleDialect(use_ansi=False)
        )

        j = a.outerjoin(b.join(c, b.c.b == c.c.c), a.c.a == b.c.b)

        self.assert_compile(
            select([j]),
            "SELECT a.a, b.b, c.c FROM a, b, c "
            "WHERE a.a = b.b(+) AND b.b = c.c",
            dialect=oracle.OracleDialect(use_ansi=False)
        )

        j = a.join(b.outerjoin(c, b.c.b == c.c.c), a.c.a == b.c.b)

        self.assert_compile(
            select([j]),
            "SELECT a.a, b.b, c.c FROM a, b, c "
            "WHERE a.a = b.b AND b.b = c.c(+)",
            dialect=oracle.OracleDialect(use_ansi=False)
        )

    def test_alias_outer_join(self):
        address_types = table('address_types', column('id'),
                              column('name'))
        addresses = table('addresses', column('id'), column('user_id'),
                          column('address_type_id'),
                          column('email_address'))
        at_alias = address_types.alias()
        s = select([at_alias, addresses]) \
            .select_from(
                addresses.outerjoin(
                    at_alias,
                    addresses.c.address_type_id == at_alias.c.id)) \
            .where(addresses.c.user_id == 7) \
            .order_by(addresses.c.id, address_types.c.id)
        self.assert_compile(s,
                            'SELECT address_types_1.id, '
                            'address_types_1.name, addresses.id, '
                            'addresses.user_id, addresses.address_type_'
                            'id, addresses.email_address FROM '
                            'addresses LEFT OUTER JOIN address_types '
                            'address_types_1 ON addresses.address_type_'
                            'id = address_types_1.id WHERE '
                            'addresses.user_id = :user_id_1 ORDER BY '
                            'addresses.id, address_types.id')

    def test_returning_insert(self):
        t1 = table('t1', column('c1'), column('c2'), column('c3'))
        self.assert_compile(
            t1.insert().values(c1=1).returning(t1.c.c2, t1.c.c3),
            "INSERT INTO t1 (c1) VALUES (:c1) RETURNING "
            "t1.c2, t1.c3 INTO :ret_0, :ret_1")

    def test_returning_insert_functional(self):
        t1 = table('t1',
                   column('c1'),
                   column('c2', String()),
                   column('c3', String()))
        fn = func.lower(t1.c.c2, type_=String())
        stmt = t1.insert().values(c1=1).returning(fn, t1.c.c3)
        compiled = stmt.compile(dialect=oracle.dialect())
        eq_(compiled._create_result_map(),
            {'c3': ('c3', (t1.c.c3, 'c3', 'c3'), t1.c.c3.type),
            'lower': ('lower', (fn, 'lower', None), fn.type)})

        self.assert_compile(
            stmt,
            "INSERT INTO t1 (c1) VALUES (:c1) RETURNING "
            "lower(t1.c2), t1.c3 INTO :ret_0, :ret_1")

    def test_returning_insert_labeled(self):
        t1 = table('t1', column('c1'), column('c2'), column('c3'))
        self.assert_compile(
            t1.insert().values(c1=1).returning(
                        t1.c.c2.label('c2_l'), t1.c.c3.label('c3_l')),
            "INSERT INTO t1 (c1) VALUES (:c1) RETURNING "
            "t1.c2, t1.c3 INTO :ret_0, :ret_1")

    def test_compound(self):
        t1 = table('t1', column('c1'), column('c2'), column('c3'))
        t2 = table('t2', column('c1'), column('c2'), column('c3'))
        self.assert_compile(union(t1.select(), t2.select()),
                            'SELECT t1.c1, t1.c2, t1.c3 FROM t1 UNION '
                            'SELECT t2.c1, t2.c2, t2.c3 FROM t2')
        self.assert_compile(except_(t1.select(), t2.select()),
                            'SELECT t1.c1, t1.c2, t1.c3 FROM t1 MINUS '
                            'SELECT t2.c1, t2.c2, t2.c3 FROM t2')

    def test_no_paren_fns(self):
        for fn, expected in [
            (func.uid(), "uid"),
            (func.UID(), "UID"),
            (func.sysdate(), "sysdate"),
            (func.row_number(), "row_number()"),
            (func.rank(), "rank()"),
            (func.now(), "CURRENT_TIMESTAMP"),
            (func.current_timestamp(), "CURRENT_TIMESTAMP"),
            (func.user(), "USER"),
        ]:
            self.assert_compile(fn, expected)

    def test_create_index_alt_schema(self):
        m = MetaData()
        t1 = Table('foo', m,
                   Column('x', Integer),
                   schema="alt_schema")
        self.assert_compile(
            schema.CreateIndex(Index("bar", t1.c.x)),
            "CREATE INDEX alt_schema.bar ON alt_schema.foo (x)"
        )

    def test_create_index_expr(self):
        m = MetaData()
        t1 = Table('foo', m,
                   Column('x', Integer))
        self.assert_compile(
            schema.CreateIndex(Index("bar", t1.c.x > 5)),
            "CREATE INDEX bar ON foo (x > 5)"
        )

    def test_table_options(self):
        m = MetaData()

        t = Table(
            'foo', m,
            Column('x', Integer),
            prefixes=["GLOBAL TEMPORARY"],
            oracle_on_commit="PRESERVE ROWS"
        )

        self.assert_compile(
            schema.CreateTable(t),
            "CREATE GLOBAL TEMPORARY TABLE "
            "foo (x INTEGER) ON COMMIT PRESERVE ROWS"
        )

    def test_create_table_compress(self):
        m = MetaData()
        tbl1 = Table('testtbl1', m, Column('data', Integer),
                     oracle_compress=True)
        tbl2 = Table('testtbl2', m, Column('data', Integer),
                     oracle_compress="OLTP")

        self.assert_compile(schema.CreateTable(tbl1),
                            "CREATE TABLE testtbl1 (data INTEGER) COMPRESS")
        self.assert_compile(schema.CreateTable(tbl2),
                            "CREATE TABLE testtbl2 (data INTEGER) "
                            "COMPRESS FOR OLTP")

    def test_create_index_bitmap_compress(self):
        m = MetaData()
        tbl = Table('testtbl', m, Column('data', Integer))
        idx1 = Index('idx1', tbl.c.data, oracle_compress=True)
        idx2 = Index('idx2', tbl.c.data, oracle_compress=1)
        idx3 = Index('idx3', tbl.c.data, oracle_bitmap=True)

        self.assert_compile(schema.CreateIndex(idx1),
                            "CREATE INDEX idx1 ON testtbl (data) COMPRESS")
        self.assert_compile(schema.CreateIndex(idx2),
                            "CREATE INDEX idx2 ON testtbl (data) COMPRESS 1")
        self.assert_compile(schema.CreateIndex(idx3),
                            "CREATE BITMAP INDEX idx3 ON testtbl (data)")


class SequenceTest(fixtures.TestBase, AssertsCompiledSQL):

    def test_basic(self):
        seq = Sequence('my_seq_no_schema')
        dialect = oracle.OracleDialect()
        assert dialect.identifier_preparer.format_sequence(seq) \
            == 'my_seq_no_schema'
        seq = Sequence('my_seq', schema='some_schema')
        assert dialect.identifier_preparer.format_sequence(seq) \
            == 'some_schema.my_seq'
        seq = Sequence('My_Seq', schema='Some_Schema')
        assert dialect.identifier_preparer.format_sequence(seq) \
            == '"Some_Schema"."My_Seq"'