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authorMike Bayer <mike_mp@zzzcomputing.com>2021-11-08 18:29:16 -0500
committerMike Bayer <mike_mp@zzzcomputing.com>2021-11-09 15:30:58 -0500
commitb919a0a85afd5066f9188b20ef06ee1b4af884a9 (patch)
tree39536ce18d644aae3488905ba501aeffcee8337b /lib/sqlalchemy/dialects/mssql
parentcf404d840c15fe167518dd884b295dc99ee26178 (diff)
downloadsqlalchemy-b919a0a85afd5066f9188b20ef06ee1b4af884a9.tar.gz
change the POSTCOMPILE/ SCHEMA symbols to not conflict w mssql quoting
Adjusted the compiler's generation of "post compile" symbols including those used for "expanding IN" as well as for the "schema translate map" to not be based directly on plain bracketed strings with underscores, as this conflicts directly with SQL Server's quoting format of also using brackets, which produces false matches when the compiler replaces "post compile" and "schema translate" symbols. The issue created easy to reproduce examples both with the :meth:`.Inspector.get_schema_names` method when used in conjunction with the :paramref:`_engine.Connection.execution_options.schema_translate_map` feature, as well in the unlikely case that a symbol overlapping with the internal name "POSTCOMPILE" would be used with a feature like "expanding in". Fixes: #7300 Change-Id: I6255c850b140522a4aba95085216d0bca18ce230
Diffstat (limited to 'lib/sqlalchemy/dialects/mssql')
-rw-r--r--lib/sqlalchemy/dialects/mssql/base.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/sqlalchemy/dialects/mssql/base.py b/lib/sqlalchemy/dialects/mssql/base.py
index 8c8260f3b..cefaad41d 100644
--- a/lib/sqlalchemy/dialects/mssql/base.py
+++ b/lib/sqlalchemy/dialects/mssql/base.py
@@ -2615,6 +2615,9 @@ def _schema_elements(schema):
# test/dialect/mssql/test_compiler.py -> test_schema_many_tokens_*
#
+ if schema.startswith("__[SCHEMA_"):
+ return None, schema
+
push = []
symbol = ""
bracket = False