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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2021-07-29 10:10:28 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2021-07-29 10:12:04 -0400 |
| commit | 1ccaac8293ee69f22dd01766a26c3ca7893c6a83 (patch) | |
| tree | d4c36c213e71e317cf2253455a6b9a478cf2e604 /lib/sqlalchemy/sql/compiler.py | |
| parent | c6b1d24fe71c22e4d2117d084f06df3597671985 (diff) | |
| download | sqlalchemy-1ccaac8293ee69f22dd01766a26c3ca7893c6a83.tar.gz | |
accommodate for cloned bindparams w/ maintain_key
Fixed issue where a bound parameter object that was "cloned" would cause a
name conflict in the compiler, if more than one clone of this parameter
were used at the same time in a single statement. This could occur in
particular with things like ORM single table inheritance queries that
indicated the same "discriminator" value multiple times in one query.
Fixes: #6824
Change-Id: Iba7a786fc5a2341ff7d07fc666d24ed790ad4fe8
Diffstat (limited to 'lib/sqlalchemy/sql/compiler.py')
| -rw-r--r-- | lib/sqlalchemy/sql/compiler.py | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/sqlalchemy/sql/compiler.py b/lib/sqlalchemy/sql/compiler.py index 29ef8047e..a81507acb 100644 --- a/lib/sqlalchemy/sql/compiler.py +++ b/lib/sqlalchemy/sql/compiler.py @@ -2311,8 +2311,14 @@ class SQLCompiler(Compiled): existing = self.binds[name] if existing is not bindparam: if ( - existing.unique or bindparam.unique - ) and not existing.proxy_set.intersection(bindparam.proxy_set): + (existing.unique or bindparam.unique) + and not existing.proxy_set.intersection( + bindparam.proxy_set + ) + and not existing._cloned_set.intersection( + bindparam._cloned_set + ) + ): raise exc.CompileError( "Bind parameter '%s' conflicts with " "unique bind parameter of the same name" % name |