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Fixed #27862 -- Fixed incorrectly quoted table aliases in Subquery SQL.

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Add aliases from resolved querysets to the parent query's external
aliases to prevent those aliases from being quoted.

Thanks to Vasily Stepanov for the report and Tim Graham for the review.
This commit is contained in:
Matthew Schinckel 2017-02-25 21:11:56 +10:30 • committed by Tim Graham
parent 9f21e35100
commit f48bc7c3db
2 changed files with 15 additions and 1 deletions
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7
django/db/models/expressions.py
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@ -940,10 +940,15 @@ class Subquery(Expression):
def resolve(child):
if hasattr(child, 'resolve_expression'):
return child.resolve_expression(
resolved = child.resolve_expression(
query=query, allow_joins=allow_joins, reuse=reuse,
summarize=summarize, for_save=for_save,
)
# Add table alias to the parent query's aliases to prevent
# quoting.
if hasattr(resolved, 'alias'):
clone.queryset.query.external_aliases.add(resolved.alias)
return resolved
return child
resolve_all(clone.queryset.query.where)