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this is safe for 1.3.x
Change-Id: Icba38fdc20f5d8ac407383a4278ccb346e09af38
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Added the :class:`_schema.Identity` construct that can be used to
configure identity columns rendered with GENERATED { ALWAYS |
BY DEFAULT } AS IDENTITY. Currently the supported backends are
PostgreSQL >= 10, Oracle >= 12 and MSSQL (with different syntax
and a subset of functionalities).
Fixes: #5362
Fixes: #5324
Fixes: #5360
Change-Id: Iecea6f3ceb36821e8b96f0b61049b580507a1875
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Renamed the :meth:`_schema.Table.tometadata` method to
:meth:`_schema.Table.to_metadata`. The previous name remains with a
deprecation warning.
Updated the "decorate" utility function to support decoration
of functions that include non-builtins as default values.
Moves test for deprecated "databases" package into
test/dialect/test_deprecations.py
Fixes: #5413
Fixes: #5426
Change-Id: I6ed899871c935f9e46360127c17ccb7cf97cea6e
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Added DDL support for "computed columns"; these are DDL column
specifications for columns that have a server-computed value, either upon
SELECT (known as "virtual") or at the point of which they are INSERTed or
UPDATEd (known as "stored"). Support is established for Postgresql, MySQL,
Oracle SQL Server and Firebird. Thanks to Federico Caselli for lots of work
on this one.
ORM round trip tests included. The ORM makes use of existing
FetchedValue support and no additional ORM logic is present for
the basic feature.
It has been observed that Oracle RETURNING does not return the
new value of a computed column upon UPDATE; it returns the
prior value. As this is very dangerous, a warning is emitted
if a computed column is rendered into the RETURNING clause
of an UPDATE statement.
Fixes: #4894
Closes: #4928
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/4928
Pull-request-sha: d39c521d5ac6ebfb4fb5b53846451de79752e64c
Change-Id: I2610b2999a5b1b127ed927dcdaeee98b769643ce
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