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update sqlalchemy

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This commit is contained in:
j 2016-02-22 16:43:36 +05:30
commit 3b436646a2
362 changed files with 37720 additions and 11021 deletions
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14
lib/python3.4/site-packages/sqlalchemy/ext/compiler.py
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@ -1,5 +1,5 @@
# ext/compiler.py
# Copyright (C) 2005-2014 the SQLAlchemy authors and contributors
# Copyright (C) 2005-2016 the SQLAlchemy authors and contributors
# <see AUTHORS file>
#
# This module is part of SQLAlchemy and is released under
@ -121,9 +121,19 @@ below where we generate a CHECK constraint that embeds a SQL expression::
def compile_my_constraint(constraint, ddlcompiler, **kw):
return "CONSTRAINT %s CHECK (%s)" % (
constraint.name,
ddlcompiler.sql_compiler.process(constraint.expression)
ddlcompiler.sql_compiler.process(
constraint.expression, literal_binds=True)
)
Above, we add an additional flag to the process step as called by
:meth:`.SQLCompiler.process`, which is the ``literal_binds`` flag. This
indicates that any SQL expression which refers to a :class:`.BindParameter`
object or other "literal" object such as those which refer to strings or
integers should be rendered **in-place**, rather than being referred to as
a bound parameter; when emitting DDL, bound parameters are typically not
supported.
.. _enabling_compiled_autocommit:
Enabling Autocommit on a Construct