mirror of
https://github.com/sqlalchemy/sqlalchemy.git
synced 2026-05-15 13:17:24 -04:00
Mike Bayer
f1a3038f48
The psycopg2 dialect now defaults to using the very performant ``execute_values()`` psycopg2 extension for compiled INSERT statements, and also impements RETURNING support when this extension is used. This allows INSERT statements that even include an autoincremented SERIAL or IDENTITY value to run very fast while still being able to return the newly generated primary key values. The ORM will then integrate this new feature in a separate change. Implements RETURNING for insert with executemany Adds support to return_defaults() mode and inserted_primary_key to support mutiple INSERTed rows, via return_defauls_rows and inserted_primary_key_rows accessors. within default execution context, new cached compiler getters are used to fetch primary keys from rows inserted_primary_key now returns a plain tuple. this is not yet a row-like object however this can be added. Adds distinct "values_only" and "batch" modes, as "values" has a lot of benefits but "batch" breaks cursor.rowcount psycopg2 minimum version 2.7 so we can remove the large number of checks for very old versions of psycopg2 simplify tests to no longer distinguish between native and non-native json Fixes: #5401 Change-Id: Ic08fd3423d4c5d16ca50994460c0c234868bd61c
1780 lines
57 KiB
Python
1780 lines
57 KiB
Python
# coding: utf-8
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import itertools
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from operator import itemgetter
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import re
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import sqlalchemy as sa
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from sqlalchemy import Column
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from sqlalchemy import exc
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from sqlalchemy import ForeignKey
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from sqlalchemy import Index
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from sqlalchemy import inspect
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from sqlalchemy import Integer
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from sqlalchemy import join
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from sqlalchemy import MetaData
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from sqlalchemy import PrimaryKeyConstraint
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from sqlalchemy import Sequence
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from sqlalchemy import String
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from sqlalchemy import Table
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from sqlalchemy import testing
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from sqlalchemy import UniqueConstraint
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from sqlalchemy.dialects.postgresql import ARRAY
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from sqlalchemy.dialects.postgresql import base as postgresql
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from sqlalchemy.dialects.postgresql import ExcludeConstraint
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from sqlalchemy.dialects.postgresql import INTEGER
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from sqlalchemy.dialects.postgresql import INTERVAL
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from sqlalchemy.dialects.postgresql import TSRANGE
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from sqlalchemy.sql.schema import CheckConstraint
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from sqlalchemy.testing import fixtures
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from sqlalchemy.testing import mock
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from sqlalchemy.testing.assertions import assert_raises
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from sqlalchemy.testing.assertions import AssertsExecutionResults
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from sqlalchemy.testing.assertions import eq_
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class ForeignTableReflectionTest(fixtures.TablesTest, AssertsExecutionResults):
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"""Test reflection on foreign tables"""
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__requires__ = ("postgresql_test_dblink",)
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__only_on__ = "postgresql >= 9.3"
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__backend__ = True
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@classmethod
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def define_tables(cls, metadata):
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from sqlalchemy.testing import config
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dblink = config.file_config.get(
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"sqla_testing", "postgres_test_db_link"
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)
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Table(
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"testtable",
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metadata,
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Column("id", Integer, primary_key=True),
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Column("data", String(30)),
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)
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for ddl in [
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"CREATE SERVER test_server FOREIGN DATA WRAPPER postgres_fdw "
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"OPTIONS (dbname 'test', host '%s')" % dblink,
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"CREATE USER MAPPING FOR public \
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SERVER test_server options (user 'scott', password 'tiger')",
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"CREATE FOREIGN TABLE test_foreigntable ( "
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" id INT, "
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" data VARCHAR(30) "
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") SERVER test_server OPTIONS (table_name 'testtable')",
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]:
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sa.event.listen(metadata, "after_create", sa.DDL(ddl))
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for ddl in [
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"DROP FOREIGN TABLE test_foreigntable",
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"DROP USER MAPPING FOR public SERVER test_server",
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"DROP SERVER test_server",
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]:
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sa.event.listen(metadata, "before_drop", sa.DDL(ddl))
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def test_foreign_table_is_reflected(self):
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metadata = MetaData(testing.db)
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table = Table("test_foreigntable", metadata, autoload=True)
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eq_(
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set(table.columns.keys()),
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set(["id", "data"]),
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"Columns of reflected foreign table didn't equal expected columns",
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)
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def test_get_foreign_table_names(self):
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inspector = inspect(testing.db)
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with testing.db.connect():
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ft_names = inspector.get_foreign_table_names()
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eq_(ft_names, ["test_foreigntable"])
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def test_get_table_names_no_foreign(self):
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inspector = inspect(testing.db)
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with testing.db.connect():
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names = inspector.get_table_names()
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eq_(names, ["testtable"])
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class PartitionedReflectionTest(fixtures.TablesTest, AssertsExecutionResults):
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# partitioned table reflection, issue #4237
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__only_on__ = "postgresql >= 10"
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__backend__ = True
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@classmethod
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def define_tables(cls, metadata):
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# the actual function isn't reflected yet
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dv = Table(
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"data_values",
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metadata,
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Column("modulus", Integer, nullable=False),
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Column("data", String(30)),
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Column("q", Integer),
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postgresql_partition_by="range(modulus)",
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)
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# looks like this is reflected prior to #4237
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sa.event.listen(
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dv,
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"after_create",
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sa.DDL(
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"CREATE TABLE data_values_4_10 PARTITION OF data_values "
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"FOR VALUES FROM (4) TO (10)"
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),
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)
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if testing.against("postgresql >= 11"):
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Index("my_index", dv.c.q)
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def test_get_tablenames(self):
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assert {"data_values", "data_values_4_10"}.issubset(
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inspect(testing.db).get_table_names()
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)
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def test_reflect_cols(self):
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cols = inspect(testing.db).get_columns("data_values")
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eq_([c["name"] for c in cols], ["modulus", "data", "q"])
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def test_reflect_cols_from_partition(self):
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cols = inspect(testing.db).get_columns("data_values_4_10")
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eq_([c["name"] for c in cols], ["modulus", "data", "q"])
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@testing.only_on("postgresql >= 11")
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def test_reflect_index(self):
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idx = inspect(testing.db).get_indexes("data_values")
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eq_(
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idx, [{"column_names": ["q"], "name": "my_index", "unique": False}]
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)
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@testing.only_on("postgresql >= 11")
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def test_reflect_index_from_partition(self):
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idx = inspect(testing.db).get_indexes("data_values_4_10")
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# note the name appears to be generated by PG, currently
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# 'data_values_4_10_q_idx'
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eq_(idx, [{"column_names": ["q"], "name": mock.ANY, "unique": False}])
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class MaterializedViewReflectionTest(
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fixtures.TablesTest, AssertsExecutionResults
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):
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"""Test reflection on materialized views"""
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__only_on__ = "postgresql >= 9.3"
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__backend__ = True
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@classmethod
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def define_tables(cls, metadata):
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testtable = Table(
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"testtable",
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metadata,
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Column("id", Integer, primary_key=True),
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Column("data", String(30)),
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)
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# insert data before we create the view
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@sa.event.listens_for(testtable, "after_create")
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def insert_data(target, connection, **kw):
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connection.execute(target.insert(), {"id": 89, "data": "d1"})
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materialized_view = sa.DDL(
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"CREATE MATERIALIZED VIEW test_mview AS " "SELECT * FROM testtable"
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)
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plain_view = sa.DDL(
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"CREATE VIEW test_regview AS " "SELECT * FROM testtable"
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)
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sa.event.listen(testtable, "after_create", plain_view)
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sa.event.listen(testtable, "after_create", materialized_view)
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sa.event.listen(
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testtable,
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"before_drop",
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sa.DDL("DROP MATERIALIZED VIEW test_mview"),
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)
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sa.event.listen(
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testtable, "before_drop", sa.DDL("DROP VIEW test_regview")
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)
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def test_mview_is_reflected(self):
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metadata = MetaData(testing.db)
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table = Table("test_mview", metadata, autoload=True)
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eq_(
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set(table.columns.keys()),
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set(["id", "data"]),
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"Columns of reflected mview didn't equal expected columns",
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)
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def test_mview_select(self):
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metadata = MetaData(testing.db)
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table = Table("test_mview", metadata, autoload=True)
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eq_(table.select().execute().fetchall(), [(89, "d1")])
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def test_get_view_names(self):
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insp = inspect(testing.db)
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eq_(set(insp.get_view_names()), set(["test_regview", "test_mview"]))
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def test_get_view_names_plain(self):
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insp = inspect(testing.db)
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eq_(
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set(insp.get_view_names(include=("plain",))), set(["test_regview"])
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)
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def test_get_view_names_plain_string(self):
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insp = inspect(testing.db)
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eq_(set(insp.get_view_names(include="plain")), set(["test_regview"]))
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def test_get_view_names_materialized(self):
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insp = inspect(testing.db)
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eq_(
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set(insp.get_view_names(include=("materialized",))),
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set(["test_mview"]),
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)
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def test_get_view_names_reflection_cache_ok(self):
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insp = inspect(testing.db)
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eq_(
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set(insp.get_view_names(include=("plain",))), set(["test_regview"])
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)
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eq_(
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set(insp.get_view_names(include=("materialized",))),
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set(["test_mview"]),
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)
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eq_(set(insp.get_view_names()), set(["test_regview", "test_mview"]))
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def test_get_view_names_empty(self):
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insp = inspect(testing.db)
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assert_raises(ValueError, insp.get_view_names, include=())
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def test_get_view_definition(self):
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insp = inspect(testing.db)
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eq_(
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re.sub(
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r"[\n\t ]+",
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" ",
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insp.get_view_definition("test_mview").strip(),
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),
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"SELECT testtable.id, testtable.data FROM testtable;",
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)
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class DomainReflectionTest(fixtures.TestBase, AssertsExecutionResults):
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"""Test PostgreSQL domains"""
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__only_on__ = "postgresql > 8.3"
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__backend__ = True
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@classmethod
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def setup_class(cls):
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con = testing.db.connect()
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for ddl in [
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'CREATE SCHEMA "SomeSchema"',
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"CREATE DOMAIN testdomain INTEGER NOT NULL DEFAULT 42",
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"CREATE DOMAIN test_schema.testdomain INTEGER DEFAULT 0",
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"CREATE TYPE testtype AS ENUM ('test')",
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"CREATE DOMAIN enumdomain AS testtype",
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"CREATE DOMAIN arraydomain AS INTEGER[]",
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'CREATE DOMAIN "SomeSchema"."Quoted.Domain" INTEGER DEFAULT 0',
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]:
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try:
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con.exec_driver_sql(ddl)
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except exc.DBAPIError as e:
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if "already exists" not in str(e):
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raise e
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con.exec_driver_sql(
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"CREATE TABLE testtable (question integer, answer " "testdomain)"
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)
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con.exec_driver_sql(
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"CREATE TABLE test_schema.testtable(question "
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"integer, answer test_schema.testdomain, anything "
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"integer)"
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)
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con.exec_driver_sql(
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"CREATE TABLE crosschema (question integer, answer "
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"test_schema.testdomain)"
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)
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con.exec_driver_sql(
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"CREATE TABLE enum_test (id integer, data enumdomain)"
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)
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con.exec_driver_sql(
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"CREATE TABLE array_test (id integer, data arraydomain)"
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)
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con.exec_driver_sql(
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"CREATE TABLE quote_test "
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'(id integer, data "SomeSchema"."Quoted.Domain")'
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)
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@classmethod
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def teardown_class(cls):
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con = testing.db.connect()
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con.exec_driver_sql("DROP TABLE testtable")
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con.exec_driver_sql("DROP TABLE test_schema.testtable")
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con.exec_driver_sql("DROP TABLE crosschema")
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con.exec_driver_sql("DROP TABLE quote_test")
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con.exec_driver_sql("DROP DOMAIN testdomain")
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con.exec_driver_sql("DROP DOMAIN test_schema.testdomain")
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con.exec_driver_sql("DROP TABLE enum_test")
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con.exec_driver_sql("DROP DOMAIN enumdomain")
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con.exec_driver_sql("DROP TYPE testtype")
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con.exec_driver_sql("DROP TABLE array_test")
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con.exec_driver_sql("DROP DOMAIN arraydomain")
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con.exec_driver_sql('DROP DOMAIN "SomeSchema"."Quoted.Domain"')
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con.exec_driver_sql('DROP SCHEMA "SomeSchema"')
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def test_table_is_reflected(self):
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metadata = MetaData(testing.db)
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table = Table("testtable", metadata, autoload=True)
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eq_(
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set(table.columns.keys()),
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set(["question", "answer"]),
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"Columns of reflected table didn't equal expected columns",
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)
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assert isinstance(table.c.answer.type, Integer)
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def test_domain_is_reflected(self):
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metadata = MetaData(testing.db)
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table = Table("testtable", metadata, autoload=True)
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eq_(
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str(table.columns.answer.server_default.arg),
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"42",
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"Reflected default value didn't equal expected value",
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)
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assert (
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not table.columns.answer.nullable
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), "Expected reflected column to not be nullable."
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def test_enum_domain_is_reflected(self):
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metadata = MetaData(testing.db)
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table = Table("enum_test", metadata, autoload=True)
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eq_(table.c.data.type.enums, ["test"])
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def test_array_domain_is_reflected(self):
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metadata = MetaData(testing.db)
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table = Table("array_test", metadata, autoload=True)
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eq_(table.c.data.type.__class__, ARRAY)
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eq_(table.c.data.type.item_type.__class__, INTEGER)
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def test_quoted_remote_schema_domain_is_reflected(self):
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metadata = MetaData(testing.db)
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table = Table("quote_test", metadata, autoload=True)
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eq_(table.c.data.type.__class__, INTEGER)
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def test_table_is_reflected_test_schema(self):
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metadata = MetaData(testing.db)
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table = Table(
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"testtable", metadata, autoload=True, schema="test_schema"
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)
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eq_(
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set(table.columns.keys()),
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set(["question", "answer", "anything"]),
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"Columns of reflected table didn't equal expected columns",
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)
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assert isinstance(table.c.anything.type, Integer)
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def test_schema_domain_is_reflected(self):
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metadata = MetaData(testing.db)
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table = Table(
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"testtable", metadata, autoload=True, schema="test_schema"
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)
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eq_(
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str(table.columns.answer.server_default.arg),
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"0",
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"Reflected default value didn't equal expected value",
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)
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assert (
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table.columns.answer.nullable
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), "Expected reflected column to be nullable."
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def test_crosschema_domain_is_reflected(self):
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metadata = MetaData(testing.db)
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table = Table("crosschema", metadata, autoload=True)
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eq_(
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str(table.columns.answer.server_default.arg),
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"0",
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"Reflected default value didn't equal expected value",
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)
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assert (
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table.columns.answer.nullable
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), "Expected reflected column to be nullable."
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def test_unknown_types(self):
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from sqlalchemy.dialects.postgresql import base
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ischema_names = base.PGDialect.ischema_names
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base.PGDialect.ischema_names = {}
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try:
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m2 = MetaData(testing.db)
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assert_raises(exc.SAWarning, Table, "testtable", m2, autoload=True)
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@testing.emits_warning("Did not recognize type")
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def warns():
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m3 = MetaData(testing.db)
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t3 = Table("testtable", m3, autoload=True)
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assert t3.c.answer.type.__class__ == sa.types.NullType
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finally:
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base.PGDialect.ischema_names = ischema_names
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class ReflectionTest(fixtures.TestBase):
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__only_on__ = "postgresql"
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__backend__ = True
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@testing.fails_if(
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"postgresql < 8.4", "Better int2vector functions not available"
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)
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@testing.provide_metadata
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def test_reflected_primary_key_order(self):
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meta1 = self.metadata
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subject = Table(
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"subject",
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meta1,
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Column("p1", Integer, primary_key=True),
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Column("p2", Integer, primary_key=True),
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PrimaryKeyConstraint("p2", "p1"),
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)
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meta1.create_all()
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meta2 = MetaData(testing.db)
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subject = Table("subject", meta2, autoload=True)
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eq_(subject.primary_key.columns.keys(), ["p2", "p1"])
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@testing.provide_metadata
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def test_pg_weirdchar_reflection(self):
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meta1 = self.metadata
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subject = Table(
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"subject", meta1, Column("id$", Integer, primary_key=True)
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)
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referer = Table(
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"referer",
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meta1,
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Column("id", Integer, primary_key=True),
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Column("ref", Integer, ForeignKey("subject.id$")),
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)
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meta1.create_all()
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meta2 = MetaData(testing.db)
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subject = Table("subject", meta2, autoload=True)
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referer = Table("referer", meta2, autoload=True)
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self.assert_(
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(subject.c["id$"] == referer.c.ref).compare(
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subject.join(referer).onclause
|
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)
|
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)
|
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|
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@testing.provide_metadata
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def test_reflect_default_over_128_chars(self):
|
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Table(
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"t",
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self.metadata,
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Column("x", String(200), server_default="abcd" * 40),
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).create(testing.db)
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m = MetaData()
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t = Table("t", m, autoload=True, autoload_with=testing.db)
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eq_(
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t.c.x.server_default.arg.text,
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"'%s'::character varying" % ("abcd" * 40),
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)
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@testing.fails_if("postgresql < 8.1", "schema name leaks in, not sure")
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@testing.provide_metadata
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def test_renamed_sequence_reflection(self):
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|
metadata = self.metadata
|
|
Table("t", metadata, Column("id", Integer, primary_key=True))
|
|
metadata.create_all()
|
|
m2 = MetaData(testing.db)
|
|
t2 = Table("t", m2, autoload=True, implicit_returning=False)
|
|
eq_(t2.c.id.server_default.arg.text, "nextval('t_id_seq'::regclass)")
|
|
r = t2.insert().execute()
|
|
eq_(r.inserted_primary_key, (1,))
|
|
testing.db.connect().execution_options(
|
|
autocommit=True
|
|
).exec_driver_sql("alter table t_id_seq rename to foobar_id_seq")
|
|
m3 = MetaData(testing.db)
|
|
t3 = Table("t", m3, autoload=True, implicit_returning=False)
|
|
eq_(
|
|
t3.c.id.server_default.arg.text,
|
|
"nextval('foobar_id_seq'::regclass)",
|
|
)
|
|
r = t3.insert().execute()
|
|
eq_(r.inserted_primary_key, (2,))
|
|
|
|
@testing.provide_metadata
|
|
def test_altered_type_autoincrement_pk_reflection(self):
|
|
metadata = self.metadata
|
|
Table(
|
|
"t",
|
|
metadata,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("x", Integer),
|
|
)
|
|
metadata.create_all()
|
|
testing.db.connect().execution_options(
|
|
autocommit=True
|
|
).exec_driver_sql("alter table t alter column id type varchar(50)")
|
|
m2 = MetaData(testing.db)
|
|
t2 = Table("t", m2, autoload=True)
|
|
eq_(t2.c.id.autoincrement, False)
|
|
eq_(t2.c.x.autoincrement, False)
|
|
|
|
@testing.provide_metadata
|
|
def test_renamed_pk_reflection(self):
|
|
metadata = self.metadata
|
|
Table("t", metadata, Column("id", Integer, primary_key=True))
|
|
metadata.create_all()
|
|
testing.db.connect().execution_options(
|
|
autocommit=True
|
|
).exec_driver_sql("alter table t rename id to t_id")
|
|
m2 = MetaData(testing.db)
|
|
t2 = Table("t", m2, autoload=True)
|
|
eq_([c.name for c in t2.primary_key], ["t_id"])
|
|
|
|
@testing.provide_metadata
|
|
def test_has_temporary_table(self):
|
|
assert not inspect(testing.db).has_table("some_temp_table")
|
|
user_tmp = Table(
|
|
"some_temp_table",
|
|
self.metadata,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("name", String(50)),
|
|
prefixes=["TEMPORARY"],
|
|
)
|
|
user_tmp.create(testing.db)
|
|
assert inspect(testing.db).has_table("some_temp_table")
|
|
|
|
@testing.provide_metadata
|
|
def test_cross_schema_reflection_one(self):
|
|
|
|
meta1 = self.metadata
|
|
|
|
users = Table(
|
|
"users",
|
|
meta1,
|
|
Column("user_id", Integer, primary_key=True),
|
|
Column("user_name", String(30), nullable=False),
|
|
schema="test_schema",
|
|
)
|
|
addresses = Table(
|
|
"email_addresses",
|
|
meta1,
|
|
Column("address_id", Integer, primary_key=True),
|
|
Column("remote_user_id", Integer, ForeignKey(users.c.user_id)),
|
|
Column("email_address", String(20)),
|
|
schema="test_schema",
|
|
)
|
|
meta1.create_all()
|
|
meta2 = MetaData(testing.db)
|
|
addresses = Table(
|
|
"email_addresses", meta2, autoload=True, schema="test_schema"
|
|
)
|
|
users = Table("users", meta2, mustexist=True, schema="test_schema")
|
|
j = join(users, addresses)
|
|
self.assert_(
|
|
(users.c.user_id == addresses.c.remote_user_id).compare(j.onclause)
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_cross_schema_reflection_two(self):
|
|
meta1 = self.metadata
|
|
subject = Table(
|
|
"subject", meta1, Column("id", Integer, primary_key=True)
|
|
)
|
|
referer = Table(
|
|
"referer",
|
|
meta1,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("ref", Integer, ForeignKey("subject.id")),
|
|
schema="test_schema",
|
|
)
|
|
meta1.create_all()
|
|
meta2 = MetaData(testing.db)
|
|
subject = Table("subject", meta2, autoload=True)
|
|
referer = Table("referer", meta2, schema="test_schema", autoload=True)
|
|
self.assert_(
|
|
(subject.c.id == referer.c.ref).compare(
|
|
subject.join(referer).onclause
|
|
)
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_cross_schema_reflection_three(self):
|
|
meta1 = self.metadata
|
|
subject = Table(
|
|
"subject",
|
|
meta1,
|
|
Column("id", Integer, primary_key=True),
|
|
schema="test_schema_2",
|
|
)
|
|
referer = Table(
|
|
"referer",
|
|
meta1,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("ref", Integer, ForeignKey("test_schema_2.subject.id")),
|
|
schema="test_schema",
|
|
)
|
|
meta1.create_all()
|
|
meta2 = MetaData(testing.db)
|
|
subject = Table(
|
|
"subject", meta2, autoload=True, schema="test_schema_2"
|
|
)
|
|
referer = Table("referer", meta2, autoload=True, schema="test_schema")
|
|
self.assert_(
|
|
(subject.c.id == referer.c.ref).compare(
|
|
subject.join(referer).onclause
|
|
)
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_cross_schema_reflection_four(self):
|
|
meta1 = self.metadata
|
|
subject = Table(
|
|
"subject",
|
|
meta1,
|
|
Column("id", Integer, primary_key=True),
|
|
schema="test_schema_2",
|
|
)
|
|
referer = Table(
|
|
"referer",
|
|
meta1,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("ref", Integer, ForeignKey("test_schema_2.subject.id")),
|
|
schema="test_schema",
|
|
)
|
|
meta1.create_all()
|
|
|
|
conn = testing.db.connect()
|
|
conn.detach()
|
|
conn.exec_driver_sql("SET search_path TO test_schema, test_schema_2")
|
|
meta2 = MetaData(bind=conn)
|
|
subject = Table(
|
|
"subject",
|
|
meta2,
|
|
autoload=True,
|
|
schema="test_schema_2",
|
|
postgresql_ignore_search_path=True,
|
|
)
|
|
referer = Table(
|
|
"referer",
|
|
meta2,
|
|
autoload=True,
|
|
schema="test_schema",
|
|
postgresql_ignore_search_path=True,
|
|
)
|
|
self.assert_(
|
|
(subject.c.id == referer.c.ref).compare(
|
|
subject.join(referer).onclause
|
|
)
|
|
)
|
|
conn.close()
|
|
|
|
@testing.provide_metadata
|
|
def test_cross_schema_reflection_five(self):
|
|
meta1 = self.metadata
|
|
|
|
# we assume 'public'
|
|
default_schema = testing.db.dialect.default_schema_name
|
|
subject = Table(
|
|
"subject", meta1, Column("id", Integer, primary_key=True)
|
|
)
|
|
referer = Table(
|
|
"referer",
|
|
meta1,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("ref", Integer, ForeignKey("subject.id")),
|
|
)
|
|
meta1.create_all()
|
|
|
|
meta2 = MetaData(testing.db)
|
|
subject = Table(
|
|
"subject",
|
|
meta2,
|
|
autoload=True,
|
|
schema=default_schema,
|
|
postgresql_ignore_search_path=True,
|
|
)
|
|
referer = Table(
|
|
"referer",
|
|
meta2,
|
|
autoload=True,
|
|
schema=default_schema,
|
|
postgresql_ignore_search_path=True,
|
|
)
|
|
assert subject.schema == default_schema
|
|
self.assert_(
|
|
(subject.c.id == referer.c.ref).compare(
|
|
subject.join(referer).onclause
|
|
)
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_cross_schema_reflection_six(self):
|
|
# test that the search path *is* taken into account
|
|
# by default
|
|
meta1 = self.metadata
|
|
|
|
Table(
|
|
"some_table",
|
|
meta1,
|
|
Column("id", Integer, primary_key=True),
|
|
schema="test_schema",
|
|
)
|
|
Table(
|
|
"some_other_table",
|
|
meta1,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("sid", Integer, ForeignKey("test_schema.some_table.id")),
|
|
schema="test_schema_2",
|
|
)
|
|
meta1.create_all()
|
|
with testing.db.connect() as conn:
|
|
conn.detach()
|
|
|
|
conn.exec_driver_sql(
|
|
"set search_path to test_schema_2, test_schema, public"
|
|
)
|
|
|
|
m1 = MetaData(conn)
|
|
|
|
Table("some_table", m1, schema="test_schema", autoload=True)
|
|
t2_schema = Table(
|
|
"some_other_table", m1, schema="test_schema_2", autoload=True
|
|
)
|
|
|
|
t2_no_schema = Table("some_other_table", m1, autoload=True)
|
|
|
|
t1_no_schema = Table("some_table", m1, autoload=True)
|
|
|
|
m2 = MetaData(conn)
|
|
t1_schema_isp = Table(
|
|
"some_table",
|
|
m2,
|
|
schema="test_schema",
|
|
autoload=True,
|
|
postgresql_ignore_search_path=True,
|
|
)
|
|
t2_schema_isp = Table(
|
|
"some_other_table",
|
|
m2,
|
|
schema="test_schema_2",
|
|
autoload=True,
|
|
postgresql_ignore_search_path=True,
|
|
)
|
|
|
|
# t2_schema refers to t1_schema, but since "test_schema"
|
|
# is in the search path, we instead link to t2_no_schema
|
|
assert t2_schema.c.sid.references(t1_no_schema.c.id)
|
|
|
|
# the two no_schema tables refer to each other also.
|
|
assert t2_no_schema.c.sid.references(t1_no_schema.c.id)
|
|
|
|
# but if we're ignoring search path, then we maintain
|
|
# those explicit schemas vs. what the "default" schema is
|
|
assert t2_schema_isp.c.sid.references(t1_schema_isp.c.id)
|
|
|
|
@testing.provide_metadata
|
|
def test_cross_schema_reflection_seven(self):
|
|
# test that the search path *is* taken into account
|
|
# by default
|
|
meta1 = self.metadata
|
|
|
|
Table(
|
|
"some_table",
|
|
meta1,
|
|
Column("id", Integer, primary_key=True),
|
|
schema="test_schema",
|
|
)
|
|
Table(
|
|
"some_other_table",
|
|
meta1,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("sid", Integer, ForeignKey("test_schema.some_table.id")),
|
|
schema="test_schema_2",
|
|
)
|
|
meta1.create_all()
|
|
with testing.db.connect() as conn:
|
|
conn.detach()
|
|
|
|
conn.exec_driver_sql(
|
|
"set search_path to test_schema_2, test_schema, public"
|
|
)
|
|
meta2 = MetaData(conn)
|
|
meta2.reflect(schema="test_schema_2")
|
|
|
|
eq_(
|
|
set(meta2.tables),
|
|
set(["test_schema_2.some_other_table", "some_table"]),
|
|
)
|
|
|
|
meta3 = MetaData(conn)
|
|
meta3.reflect(
|
|
schema="test_schema_2", postgresql_ignore_search_path=True
|
|
)
|
|
|
|
eq_(
|
|
set(meta3.tables),
|
|
set(
|
|
[
|
|
"test_schema_2.some_other_table",
|
|
"test_schema.some_table",
|
|
]
|
|
),
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_cross_schema_reflection_metadata_uses_schema(self):
|
|
# test [ticket:3716]
|
|
|
|
metadata = self.metadata
|
|
|
|
Table(
|
|
"some_table",
|
|
metadata,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("sid", Integer, ForeignKey("some_other_table.id")),
|
|
schema="test_schema",
|
|
)
|
|
Table(
|
|
"some_other_table",
|
|
metadata,
|
|
Column("id", Integer, primary_key=True),
|
|
schema=None,
|
|
)
|
|
metadata.create_all()
|
|
with testing.db.connect() as conn:
|
|
meta2 = MetaData(conn, schema="test_schema")
|
|
meta2.reflect()
|
|
|
|
eq_(
|
|
set(meta2.tables),
|
|
set(["some_other_table", "test_schema.some_table"]),
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_uppercase_lowercase_table(self):
|
|
metadata = self.metadata
|
|
|
|
a_table = Table("a", metadata, Column("x", Integer))
|
|
A_table = Table("A", metadata, Column("x", Integer))
|
|
|
|
a_table.create()
|
|
assert inspect(testing.db).has_table("a")
|
|
assert not inspect(testing.db).has_table("A")
|
|
A_table.create(checkfirst=True)
|
|
assert inspect(testing.db).has_table("A")
|
|
|
|
def test_uppercase_lowercase_sequence(self):
|
|
|
|
a_seq = Sequence("a")
|
|
A_seq = Sequence("A")
|
|
|
|
a_seq.create(testing.db)
|
|
assert testing.db.dialect.has_sequence(testing.db, "a")
|
|
assert not testing.db.dialect.has_sequence(testing.db, "A")
|
|
A_seq.create(testing.db, checkfirst=True)
|
|
assert testing.db.dialect.has_sequence(testing.db, "A")
|
|
|
|
a_seq.drop(testing.db)
|
|
A_seq.drop(testing.db)
|
|
|
|
@testing.provide_metadata
|
|
def test_index_reflection(self):
|
|
""" Reflecting partial & expression-based indexes should warn
|
|
"""
|
|
|
|
metadata = self.metadata
|
|
|
|
Table(
|
|
"party",
|
|
metadata,
|
|
Column("id", String(10), nullable=False),
|
|
Column("name", String(20), index=True),
|
|
Column("aname", String(20)),
|
|
)
|
|
metadata.create_all()
|
|
with testing.db.connect() as c:
|
|
c.exec_driver_sql("create index idx1 on party ((id || name))")
|
|
c.exec_driver_sql(
|
|
"create unique index idx2 on party (id) where name = 'test'"
|
|
)
|
|
c.exec_driver_sql(
|
|
"""
|
|
create index idx3 on party using btree
|
|
(lower(name::text), lower(aname::text))
|
|
"""
|
|
)
|
|
|
|
def go():
|
|
m2 = MetaData(testing.db)
|
|
t2 = Table("party", m2, autoload=True)
|
|
assert len(t2.indexes) == 2
|
|
|
|
# Make sure indexes are in the order we expect them in
|
|
|
|
tmp = [(idx.name, idx) for idx in t2.indexes]
|
|
tmp.sort()
|
|
r1, r2 = [idx[1] for idx in tmp]
|
|
assert r1.name == "idx2"
|
|
assert r1.unique is True
|
|
assert r2.unique is False
|
|
assert [t2.c.id] == r1.columns
|
|
assert [t2.c.name] == r2.columns
|
|
|
|
testing.assert_warnings(
|
|
go,
|
|
[
|
|
"Skipped unsupported reflection of "
|
|
"expression-based index idx1",
|
|
"Predicate of partial index idx2 ignored during " "reflection",
|
|
"Skipped unsupported reflection of "
|
|
"expression-based index idx3",
|
|
],
|
|
)
|
|
|
|
@testing.fails_if("postgresql < 8.3", "index ordering not supported")
|
|
@testing.provide_metadata
|
|
def test_index_reflection_with_sorting(self):
|
|
"""reflect indexes with sorting options set"""
|
|
|
|
t1 = Table(
|
|
"party",
|
|
self.metadata,
|
|
Column("id", String(10), nullable=False),
|
|
Column("name", String(20)),
|
|
Column("aname", String(20)),
|
|
)
|
|
|
|
with testing.db.connect() as conn:
|
|
|
|
t1.create(conn)
|
|
|
|
# check ASC, DESC options alone
|
|
conn.exec_driver_sql(
|
|
"""
|
|
create index idx1 on party
|
|
(id, name ASC, aname DESC)
|
|
"""
|
|
)
|
|
|
|
# check DESC w/ NULLS options
|
|
conn.exec_driver_sql(
|
|
"""
|
|
create index idx2 on party
|
|
(name DESC NULLS FIRST, aname DESC NULLS LAST)
|
|
"""
|
|
)
|
|
|
|
# check ASC w/ NULLS options
|
|
conn.exec_driver_sql(
|
|
"""
|
|
create index idx3 on party
|
|
(name ASC NULLS FIRST, aname ASC NULLS LAST)
|
|
"""
|
|
)
|
|
|
|
# reflect data
|
|
with testing.db.connect() as conn:
|
|
m2 = MetaData(conn)
|
|
t2 = Table("party", m2, autoload=True)
|
|
|
|
eq_(len(t2.indexes), 3)
|
|
|
|
# Make sure indexes are in the order we expect them in
|
|
r1, r2, r3 = sorted(t2.indexes, key=lambda idx: idx.name)
|
|
|
|
eq_(r1.name, "idx1")
|
|
eq_(r2.name, "idx2")
|
|
eq_(r3.name, "idx3")
|
|
|
|
# "ASC NULLS LAST" is implicit default for indexes,
|
|
# and "NULLS FIRST" is implicit default for "DESC".
|
|
# (https://www.postgresql.org/docs/11/indexes-ordering.html)
|
|
|
|
def compile_exprs(exprs):
|
|
return list(map(str, exprs))
|
|
|
|
eq_(
|
|
compile_exprs([t2.c.id, t2.c.name, t2.c.aname.desc()]),
|
|
compile_exprs(r1.expressions),
|
|
)
|
|
|
|
eq_(
|
|
compile_exprs([t2.c.name.desc(), t2.c.aname.desc().nullslast()]),
|
|
compile_exprs(r2.expressions),
|
|
)
|
|
|
|
eq_(
|
|
compile_exprs([t2.c.name.nullsfirst(), t2.c.aname]),
|
|
compile_exprs(r3.expressions),
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_index_reflection_modified(self):
|
|
"""reflect indexes when a column name has changed - PG 9
|
|
does not update the name of the column in the index def.
|
|
[ticket:2141]
|
|
|
|
"""
|
|
|
|
metadata = self.metadata
|
|
|
|
Table(
|
|
"t",
|
|
metadata,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("x", Integer),
|
|
)
|
|
metadata.create_all()
|
|
conn = testing.db.connect().execution_options(autocommit=True)
|
|
conn.exec_driver_sql("CREATE INDEX idx1 ON t (x)")
|
|
conn.exec_driver_sql("ALTER TABLE t RENAME COLUMN x to y")
|
|
|
|
ind = testing.db.dialect.get_indexes(conn, "t", None)
|
|
eq_(ind, [{"unique": False, "column_names": ["y"], "name": "idx1"}])
|
|
conn.close()
|
|
|
|
@testing.fails_if("postgresql < 8.2", "reloptions not supported")
|
|
@testing.provide_metadata
|
|
def test_index_reflection_with_storage_options(self):
|
|
"""reflect indexes with storage options set"""
|
|
|
|
metadata = self.metadata
|
|
|
|
Table(
|
|
"t",
|
|
metadata,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("x", Integer),
|
|
)
|
|
metadata.create_all()
|
|
|
|
with testing.db.connect().execution_options(autocommit=True) as conn:
|
|
conn.exec_driver_sql(
|
|
"CREATE INDEX idx1 ON t (x) WITH (fillfactor = 50)"
|
|
)
|
|
|
|
ind = testing.db.dialect.get_indexes(conn, "t", None)
|
|
eq_(
|
|
ind,
|
|
[
|
|
{
|
|
"unique": False,
|
|
"column_names": ["x"],
|
|
"name": "idx1",
|
|
"dialect_options": {
|
|
"postgresql_with": {"fillfactor": "50"}
|
|
},
|
|
}
|
|
],
|
|
)
|
|
|
|
m = MetaData()
|
|
t1 = Table("t", m, autoload_with=conn)
|
|
eq_(
|
|
list(t1.indexes)[0].dialect_options["postgresql"]["with"],
|
|
{"fillfactor": "50"},
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_index_reflection_with_access_method(self):
|
|
"""reflect indexes with storage options set"""
|
|
|
|
metadata = self.metadata
|
|
|
|
Table(
|
|
"t",
|
|
metadata,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("x", ARRAY(Integer)),
|
|
)
|
|
metadata.create_all()
|
|
with testing.db.connect().execution_options(autocommit=True) as conn:
|
|
conn.exec_driver_sql("CREATE INDEX idx1 ON t USING gin (x)")
|
|
|
|
ind = testing.db.dialect.get_indexes(conn, "t", None)
|
|
eq_(
|
|
ind,
|
|
[
|
|
{
|
|
"unique": False,
|
|
"column_names": ["x"],
|
|
"name": "idx1",
|
|
"dialect_options": {"postgresql_using": "gin"},
|
|
}
|
|
],
|
|
)
|
|
m = MetaData()
|
|
t1 = Table("t", m, autoload_with=conn)
|
|
eq_(
|
|
list(t1.indexes)[0].dialect_options["postgresql"]["using"],
|
|
"gin",
|
|
)
|
|
|
|
@testing.skip_if("postgresql < 11.0", "indnkeyatts not supported")
|
|
@testing.provide_metadata
|
|
def test_index_reflection_with_include(self):
|
|
"""reflect indexes with include set"""
|
|
|
|
metadata = self.metadata
|
|
|
|
Table(
|
|
"t",
|
|
metadata,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("x", ARRAY(Integer)),
|
|
Column("name", String(20)),
|
|
)
|
|
metadata.create_all()
|
|
with testing.db.connect() as conn:
|
|
conn.execute("CREATE INDEX idx1 ON t (x) INCLUDE (name)")
|
|
|
|
# prior to #5205, this would return:
|
|
# [{'column_names': ['x', 'name'],
|
|
# 'name': 'idx1', 'unique': False}]
|
|
|
|
with testing.expect_warnings(
|
|
"INCLUDE columns for "
|
|
"covering index idx1 ignored during reflection"
|
|
):
|
|
ind = testing.db.dialect.get_indexes(conn, "t", None)
|
|
eq_(
|
|
ind,
|
|
[{"unique": False, "column_names": ["x"], "name": "idx1"}],
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_foreign_key_option_inspection(self):
|
|
metadata = self.metadata
|
|
Table(
|
|
"person",
|
|
metadata,
|
|
Column("id", String(length=32), nullable=False, primary_key=True),
|
|
Column(
|
|
"company_id",
|
|
ForeignKey(
|
|
"company.id",
|
|
name="person_company_id_fkey",
|
|
match="FULL",
|
|
onupdate="RESTRICT",
|
|
ondelete="RESTRICT",
|
|
deferrable=True,
|
|
initially="DEFERRED",
|
|
),
|
|
),
|
|
)
|
|
Table(
|
|
"company",
|
|
metadata,
|
|
Column("id", String(length=32), nullable=False, primary_key=True),
|
|
Column("name", String(length=255)),
|
|
Column(
|
|
"industry_id",
|
|
ForeignKey(
|
|
"industry.id",
|
|
name="company_industry_id_fkey",
|
|
onupdate="CASCADE",
|
|
ondelete="CASCADE",
|
|
deferrable=False, # PG default
|
|
# PG default
|
|
initially="IMMEDIATE",
|
|
),
|
|
),
|
|
)
|
|
Table(
|
|
"industry",
|
|
metadata,
|
|
Column("id", Integer(), nullable=False, primary_key=True),
|
|
Column("name", String(length=255)),
|
|
)
|
|
fk_ref = {
|
|
"person_company_id_fkey": {
|
|
"name": "person_company_id_fkey",
|
|
"constrained_columns": ["company_id"],
|
|
"referred_columns": ["id"],
|
|
"referred_table": "company",
|
|
"referred_schema": None,
|
|
"options": {
|
|
"onupdate": "RESTRICT",
|
|
"deferrable": True,
|
|
"ondelete": "RESTRICT",
|
|
"initially": "DEFERRED",
|
|
"match": "FULL",
|
|
},
|
|
},
|
|
"company_industry_id_fkey": {
|
|
"name": "company_industry_id_fkey",
|
|
"constrained_columns": ["industry_id"],
|
|
"referred_columns": ["id"],
|
|
"referred_table": "industry",
|
|
"referred_schema": None,
|
|
"options": {"onupdate": "CASCADE", "ondelete": "CASCADE"},
|
|
},
|
|
}
|
|
metadata.create_all()
|
|
inspector = inspect(testing.db)
|
|
fks = inspector.get_foreign_keys(
|
|
"person"
|
|
) + inspector.get_foreign_keys("company")
|
|
for fk in fks:
|
|
eq_(fk, fk_ref[fk["name"]])
|
|
|
|
@testing.provide_metadata
|
|
def test_inspect_enums_schema(self):
|
|
conn = testing.db.connect()
|
|
enum_type = postgresql.ENUM(
|
|
"sad",
|
|
"ok",
|
|
"happy",
|
|
name="mood",
|
|
schema="test_schema",
|
|
metadata=self.metadata,
|
|
)
|
|
enum_type.create(conn)
|
|
inspector = inspect(conn)
|
|
eq_(
|
|
inspector.get_enums("test_schema"),
|
|
[
|
|
{
|
|
"visible": False,
|
|
"name": "mood",
|
|
"schema": "test_schema",
|
|
"labels": ["sad", "ok", "happy"],
|
|
}
|
|
],
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_inspect_enums(self):
|
|
enum_type = postgresql.ENUM(
|
|
"cat", "dog", "rat", name="pet", metadata=self.metadata
|
|
)
|
|
enum_type.create(testing.db)
|
|
inspector = inspect(testing.db)
|
|
eq_(
|
|
inspector.get_enums(),
|
|
[
|
|
{
|
|
"visible": True,
|
|
"labels": ["cat", "dog", "rat"],
|
|
"name": "pet",
|
|
"schema": "public",
|
|
}
|
|
],
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_inspect_enums_case_sensitive(self):
|
|
sa.event.listen(
|
|
self.metadata,
|
|
"before_create",
|
|
sa.DDL('create schema "TestSchema"'),
|
|
)
|
|
sa.event.listen(
|
|
self.metadata,
|
|
"after_drop",
|
|
sa.DDL('drop schema "TestSchema" cascade'),
|
|
)
|
|
|
|
for enum in "lower_case", "UpperCase", "Name.With.Dot":
|
|
for schema in None, "test_schema", "TestSchema":
|
|
|
|
postgresql.ENUM(
|
|
"CapsOne",
|
|
"CapsTwo",
|
|
name=enum,
|
|
schema=schema,
|
|
metadata=self.metadata,
|
|
)
|
|
|
|
self.metadata.create_all(testing.db)
|
|
inspector = inspect(testing.db)
|
|
for schema in None, "test_schema", "TestSchema":
|
|
eq_(
|
|
sorted(
|
|
inspector.get_enums(schema=schema), key=itemgetter("name")
|
|
),
|
|
[
|
|
{
|
|
"visible": schema is None,
|
|
"labels": ["CapsOne", "CapsTwo"],
|
|
"name": "Name.With.Dot",
|
|
"schema": "public" if schema is None else schema,
|
|
},
|
|
{
|
|
"visible": schema is None,
|
|
"labels": ["CapsOne", "CapsTwo"],
|
|
"name": "UpperCase",
|
|
"schema": "public" if schema is None else schema,
|
|
},
|
|
{
|
|
"visible": schema is None,
|
|
"labels": ["CapsOne", "CapsTwo"],
|
|
"name": "lower_case",
|
|
"schema": "public" if schema is None else schema,
|
|
},
|
|
],
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_inspect_enums_case_sensitive_from_table(self):
|
|
sa.event.listen(
|
|
self.metadata,
|
|
"before_create",
|
|
sa.DDL('create schema "TestSchema"'),
|
|
)
|
|
sa.event.listen(
|
|
self.metadata,
|
|
"after_drop",
|
|
sa.DDL('drop schema "TestSchema" cascade'),
|
|
)
|
|
|
|
counter = itertools.count()
|
|
for enum in "lower_case", "UpperCase", "Name.With.Dot":
|
|
for schema in None, "test_schema", "TestSchema":
|
|
|
|
enum_type = postgresql.ENUM(
|
|
"CapsOne",
|
|
"CapsTwo",
|
|
name=enum,
|
|
metadata=self.metadata,
|
|
schema=schema,
|
|
)
|
|
|
|
Table(
|
|
"t%d" % next(counter),
|
|
self.metadata,
|
|
Column("q", enum_type),
|
|
)
|
|
|
|
self.metadata.create_all(testing.db)
|
|
|
|
inspector = inspect(testing.db)
|
|
counter = itertools.count()
|
|
for enum in "lower_case", "UpperCase", "Name.With.Dot":
|
|
for schema in None, "test_schema", "TestSchema":
|
|
cols = inspector.get_columns("t%d" % next(counter))
|
|
cols[0]["type"] = (
|
|
cols[0]["type"].schema,
|
|
cols[0]["type"].name,
|
|
cols[0]["type"].enums,
|
|
)
|
|
eq_(
|
|
cols,
|
|
[
|
|
{
|
|
"name": "q",
|
|
"type": (schema, enum, ["CapsOne", "CapsTwo"]),
|
|
"nullable": True,
|
|
"default": None,
|
|
"autoincrement": False,
|
|
"comment": None,
|
|
}
|
|
],
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_inspect_enums_star(self):
|
|
enum_type = postgresql.ENUM(
|
|
"cat", "dog", "rat", name="pet", metadata=self.metadata
|
|
)
|
|
schema_enum_type = postgresql.ENUM(
|
|
"sad",
|
|
"ok",
|
|
"happy",
|
|
name="mood",
|
|
schema="test_schema",
|
|
metadata=self.metadata,
|
|
)
|
|
enum_type.create(testing.db)
|
|
schema_enum_type.create(testing.db)
|
|
inspector = inspect(testing.db)
|
|
|
|
eq_(
|
|
inspector.get_enums(),
|
|
[
|
|
{
|
|
"visible": True,
|
|
"labels": ["cat", "dog", "rat"],
|
|
"name": "pet",
|
|
"schema": "public",
|
|
}
|
|
],
|
|
)
|
|
|
|
eq_(
|
|
inspector.get_enums("*"),
|
|
[
|
|
{
|
|
"visible": True,
|
|
"labels": ["cat", "dog", "rat"],
|
|
"name": "pet",
|
|
"schema": "public",
|
|
},
|
|
{
|
|
"visible": False,
|
|
"name": "mood",
|
|
"schema": "test_schema",
|
|
"labels": ["sad", "ok", "happy"],
|
|
},
|
|
],
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_inspect_enum_empty(self):
|
|
enum_type = postgresql.ENUM(name="empty", metadata=self.metadata)
|
|
enum_type.create(testing.db)
|
|
inspector = inspect(testing.db)
|
|
|
|
eq_(
|
|
inspector.get_enums(),
|
|
[
|
|
{
|
|
"visible": True,
|
|
"labels": [],
|
|
"name": "empty",
|
|
"schema": "public",
|
|
}
|
|
],
|
|
)
|
|
|
|
@testing.provide_metadata
|
|
def test_inspect_enum_empty_from_table(self):
|
|
Table(
|
|
"t", self.metadata, Column("x", postgresql.ENUM(name="empty"))
|
|
).create(testing.db)
|
|
|
|
t = Table("t", MetaData(testing.db), autoload_with=testing.db)
|
|
eq_(t.c.x.type.enums, [])
|
|
|
|
@testing.provide_metadata
|
|
@testing.only_on("postgresql >= 8.5")
|
|
def test_reflection_with_unique_constraint(self):
|
|
insp = inspect(testing.db)
|
|
|
|
meta = self.metadata
|
|
uc_table = Table(
|
|
"pgsql_uc",
|
|
meta,
|
|
Column("a", String(10)),
|
|
UniqueConstraint("a", name="uc_a"),
|
|
)
|
|
|
|
uc_table.create()
|
|
|
|
# PostgreSQL will create an implicit index for a unique
|
|
# constraint. Separately we get both
|
|
indexes = set(i["name"] for i in insp.get_indexes("pgsql_uc"))
|
|
constraints = set(
|
|
i["name"] for i in insp.get_unique_constraints("pgsql_uc")
|
|
)
|
|
|
|
self.assert_("uc_a" in indexes)
|
|
self.assert_("uc_a" in constraints)
|
|
|
|
# reflection corrects for the dupe
|
|
reflected = Table("pgsql_uc", MetaData(testing.db), autoload=True)
|
|
|
|
indexes = set(i.name for i in reflected.indexes)
|
|
constraints = set(uc.name for uc in reflected.constraints)
|
|
|
|
self.assert_("uc_a" not in indexes)
|
|
self.assert_("uc_a" in constraints)
|
|
|
|
@testing.requires.btree_gist
|
|
@testing.provide_metadata
|
|
def test_reflection_with_exclude_constraint(self):
|
|
m = self.metadata
|
|
Table(
|
|
"t",
|
|
m,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("period", TSRANGE),
|
|
ExcludeConstraint(("period", "&&"), name="quarters_period_excl"),
|
|
)
|
|
|
|
m.create_all()
|
|
|
|
insp = inspect(testing.db)
|
|
|
|
# PostgreSQL will create an implicit index for an exclude constraint.
|
|
# we don't reflect the EXCLUDE yet.
|
|
eq_(
|
|
insp.get_indexes("t"),
|
|
[
|
|
{
|
|
"unique": False,
|
|
"name": "quarters_period_excl",
|
|
"duplicates_constraint": "quarters_period_excl",
|
|
"dialect_options": {"postgresql_using": "gist"},
|
|
"column_names": ["period"],
|
|
}
|
|
],
|
|
)
|
|
|
|
# reflection corrects for the dupe
|
|
reflected = Table("t", MetaData(testing.db), autoload=True)
|
|
|
|
eq_(set(reflected.indexes), set())
|
|
|
|
@testing.provide_metadata
|
|
def test_reflect_unique_index(self):
|
|
insp = inspect(testing.db)
|
|
|
|
meta = self.metadata
|
|
|
|
# a unique index OTOH we are able to detect is an index
|
|
# and not a unique constraint
|
|
uc_table = Table(
|
|
"pgsql_uc",
|
|
meta,
|
|
Column("a", String(10)),
|
|
Index("ix_a", "a", unique=True),
|
|
)
|
|
|
|
uc_table.create()
|
|
|
|
indexes = dict((i["name"], i) for i in insp.get_indexes("pgsql_uc"))
|
|
constraints = set(
|
|
i["name"] for i in insp.get_unique_constraints("pgsql_uc")
|
|
)
|
|
|
|
self.assert_("ix_a" in indexes)
|
|
assert indexes["ix_a"]["unique"]
|
|
self.assert_("ix_a" not in constraints)
|
|
|
|
reflected = Table("pgsql_uc", MetaData(testing.db), autoload=True)
|
|
|
|
indexes = dict((i.name, i) for i in reflected.indexes)
|
|
constraints = set(uc.name for uc in reflected.constraints)
|
|
|
|
self.assert_("ix_a" in indexes)
|
|
assert indexes["ix_a"].unique
|
|
self.assert_("ix_a" not in constraints)
|
|
|
|
@testing.provide_metadata
|
|
def test_reflect_check_constraint(self):
|
|
meta = self.metadata
|
|
|
|
udf_create = """\
|
|
CREATE OR REPLACE FUNCTION is_positive(
|
|
x integer DEFAULT '-1'::integer)
|
|
RETURNS boolean
|
|
LANGUAGE 'plpgsql'
|
|
COST 100
|
|
VOLATILE
|
|
AS $BODY$BEGIN
|
|
RETURN x > 0;
|
|
END;$BODY$;
|
|
"""
|
|
sa.event.listen(meta, "before_create", sa.DDL(udf_create))
|
|
sa.event.listen(
|
|
meta, "after_drop", sa.DDL("DROP FUNCTION is_positive(integer)")
|
|
)
|
|
|
|
Table(
|
|
"pgsql_cc",
|
|
meta,
|
|
Column("a", Integer()),
|
|
Column("b", String),
|
|
CheckConstraint("a > 1 AND a < 5", name="cc1"),
|
|
CheckConstraint("a = 1 OR (a > 2 AND a < 5)", name="cc2"),
|
|
CheckConstraint("is_positive(a)", name="cc3"),
|
|
CheckConstraint("b != 'hi\nim a name \nyup\n'", name="cc4"),
|
|
)
|
|
|
|
meta.create_all()
|
|
|
|
reflected = Table("pgsql_cc", MetaData(), autoload_with=testing.db)
|
|
|
|
check_constraints = dict(
|
|
(uc.name, uc.sqltext.text)
|
|
for uc in reflected.constraints
|
|
if isinstance(uc, CheckConstraint)
|
|
)
|
|
|
|
eq_(
|
|
check_constraints,
|
|
{
|
|
u"cc1": u"(a > 1) AND (a < 5)",
|
|
u"cc2": u"(a = 1) OR ((a > 2) AND (a < 5))",
|
|
u"cc3": u"is_positive(a)",
|
|
u"cc4": u"(b)::text <> 'hi\nim a name \nyup\n'::text",
|
|
},
|
|
)
|
|
|
|
def test_reflect_check_warning(self):
|
|
rows = [("some name", "NOTCHECK foobar")]
|
|
conn = mock.Mock(
|
|
execute=lambda *arg, **kw: mock.MagicMock(
|
|
fetchall=lambda: rows, __iter__=lambda self: iter(rows)
|
|
)
|
|
)
|
|
with mock.patch.object(
|
|
testing.db.dialect, "get_table_oid", lambda *arg, **kw: 1
|
|
):
|
|
with testing.expect_warnings(
|
|
"Could not parse CHECK constraint text: 'NOTCHECK foobar'"
|
|
):
|
|
testing.db.dialect.get_check_constraints(conn, "foo")
|
|
|
|
def test_reflect_extra_newlines(self):
|
|
rows = [
|
|
("some name", "CHECK (\n(a \nIS\n NOT\n\n NULL\n)\n)"),
|
|
("some other name", "CHECK ((b\nIS\nNOT\nNULL))"),
|
|
("some CRLF name", "CHECK ((c\r\n\r\nIS\r\nNOT\r\nNULL))"),
|
|
("some name", "CHECK (c != 'hi\nim a name\n')"),
|
|
]
|
|
conn = mock.Mock(
|
|
execute=lambda *arg, **kw: mock.MagicMock(
|
|
fetchall=lambda: rows, __iter__=lambda self: iter(rows)
|
|
)
|
|
)
|
|
with mock.patch.object(
|
|
testing.db.dialect, "get_table_oid", lambda *arg, **kw: 1
|
|
):
|
|
check_constraints = testing.db.dialect.get_check_constraints(
|
|
conn, "foo"
|
|
)
|
|
eq_(
|
|
check_constraints,
|
|
[
|
|
{
|
|
"name": "some name",
|
|
"sqltext": "a \nIS\n NOT\n\n NULL\n",
|
|
},
|
|
{"name": "some other name", "sqltext": "b\nIS\nNOT\nNULL"},
|
|
{
|
|
"name": "some CRLF name",
|
|
"sqltext": "c\r\n\r\nIS\r\nNOT\r\nNULL",
|
|
},
|
|
{"name": "some name", "sqltext": "c != 'hi\nim a name\n'"},
|
|
],
|
|
)
|
|
|
|
def test_reflect_with_not_valid_check_constraint(self):
|
|
rows = [("some name", "CHECK ((a IS NOT NULL)) NOT VALID")]
|
|
conn = mock.Mock(
|
|
execute=lambda *arg, **kw: mock.MagicMock(
|
|
fetchall=lambda: rows, __iter__=lambda self: iter(rows)
|
|
)
|
|
)
|
|
with mock.patch.object(
|
|
testing.db.dialect, "get_table_oid", lambda *arg, **kw: 1
|
|
):
|
|
check_constraints = testing.db.dialect.get_check_constraints(
|
|
conn, "foo"
|
|
)
|
|
eq_(
|
|
check_constraints,
|
|
[
|
|
{
|
|
"name": "some name",
|
|
"sqltext": "a IS NOT NULL",
|
|
"dialect_options": {"not_valid": True},
|
|
}
|
|
],
|
|
)
|
|
|
|
|
|
class CustomTypeReflectionTest(fixtures.TestBase):
|
|
class CustomType(object):
|
|
def __init__(self, arg1=None, arg2=None):
|
|
self.arg1 = arg1
|
|
self.arg2 = arg2
|
|
|
|
ischema_names = None
|
|
|
|
def setup(self):
|
|
ischema_names = postgresql.PGDialect.ischema_names
|
|
postgresql.PGDialect.ischema_names = ischema_names.copy()
|
|
self.ischema_names = ischema_names
|
|
|
|
def teardown(self):
|
|
postgresql.PGDialect.ischema_names = self.ischema_names
|
|
self.ischema_names = None
|
|
|
|
def _assert_reflected(self, dialect):
|
|
for sch, args in [
|
|
("my_custom_type", (None, None)),
|
|
("my_custom_type()", (None, None)),
|
|
("my_custom_type(ARG1)", ("ARG1", None)),
|
|
("my_custom_type(ARG1, ARG2)", ("ARG1", "ARG2")),
|
|
]:
|
|
column_info = dialect._get_column_info(
|
|
"colname", sch, None, False, {}, {}, "public", None, ""
|
|
)
|
|
assert isinstance(column_info["type"], self.CustomType)
|
|
eq_(column_info["type"].arg1, args[0])
|
|
eq_(column_info["type"].arg2, args[1])
|
|
|
|
def test_clslevel(self):
|
|
postgresql.PGDialect.ischema_names["my_custom_type"] = self.CustomType
|
|
dialect = postgresql.PGDialect()
|
|
self._assert_reflected(dialect)
|
|
|
|
def test_instancelevel(self):
|
|
dialect = postgresql.PGDialect()
|
|
dialect.ischema_names = dialect.ischema_names.copy()
|
|
dialect.ischema_names["my_custom_type"] = self.CustomType
|
|
self._assert_reflected(dialect)
|
|
|
|
|
|
class IntervalReflectionTest(fixtures.TestBase):
|
|
__only_on__ = "postgresql"
|
|
__backend__ = True
|
|
|
|
def test_interval_types(self):
|
|
for sym in [
|
|
"YEAR",
|
|
"MONTH",
|
|
"DAY",
|
|
"HOUR",
|
|
"MINUTE",
|
|
"SECOND",
|
|
"YEAR TO MONTH",
|
|
"DAY TO HOUR",
|
|
"DAY TO MINUTE",
|
|
"DAY TO SECOND",
|
|
"HOUR TO MINUTE",
|
|
"HOUR TO SECOND",
|
|
"MINUTE TO SECOND",
|
|
]:
|
|
self._test_interval_symbol(sym)
|
|
|
|
@testing.provide_metadata
|
|
def _test_interval_symbol(self, sym):
|
|
t = Table(
|
|
"i_test",
|
|
self.metadata,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("data1", INTERVAL(fields=sym)),
|
|
)
|
|
t.create(testing.db)
|
|
|
|
columns = {
|
|
rec["name"]: rec
|
|
for rec in inspect(testing.db).get_columns("i_test")
|
|
}
|
|
assert isinstance(columns["data1"]["type"], INTERVAL)
|
|
eq_(columns["data1"]["type"].fields, sym.lower())
|
|
eq_(columns["data1"]["type"].precision, None)
|
|
|
|
@testing.provide_metadata
|
|
def test_interval_precision(self):
|
|
t = Table(
|
|
"i_test",
|
|
self.metadata,
|
|
Column("id", Integer, primary_key=True),
|
|
Column("data1", INTERVAL(precision=6)),
|
|
)
|
|
t.create(testing.db)
|
|
|
|
columns = {
|
|
rec["name"]: rec
|
|
for rec in inspect(testing.db).get_columns("i_test")
|
|
}
|
|
assert isinstance(columns["data1"]["type"], INTERVAL)
|
|
eq_(columns["data1"]["type"].fields, None)
|
|
eq_(columns["data1"]["type"].precision, 6)
|