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Diffstat (limited to 'django/db/models/sql/compiler.py')
| -rw-r--r-- | django/db/models/sql/compiler.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/django/db/models/sql/compiler.py b/django/db/models/sql/compiler.py index fe22163961..98feb42716 100644 --- a/django/db/models/sql/compiler.py +++ b/django/db/models/sql/compiler.py @@ -1134,6 +1134,9 @@ class SQLCompiler: """ result = [] params = [] + # Copy alias_map to a tuple in case Join.as_sql() subclasses (objects + # in alias_map) alter compiler.query.alias_map. That would otherwise + # raise "RuntimeError: dictionary changed size during iteration". for alias, from_clause in tuple(self.query.alias_map.items()): if not self.query.alias_refcount[alias]: continue |