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Diffstat (limited to 'lib/sqlalchemy/dialects/oracle/base.py')
| -rw-r--r-- | lib/sqlalchemy/dialects/oracle/base.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/sqlalchemy/dialects/oracle/base.py b/lib/sqlalchemy/dialects/oracle/base.py index 842730c5b..868c64ed3 100644 --- a/lib/sqlalchemy/dialects/oracle/base.py +++ b/lib/sqlalchemy/dialects/oracle/base.py @@ -878,7 +878,8 @@ class OracleCompiler(compiler.SQLCompiler): for_update._copy_internals() for elem in for_update.of: - select = select.column(elem) + if not select.selected_columns.contains_column(elem): + select = select.column(elem) # Wrap the middle select and add the hint inner_subquery = select.alias() |