diff options
Diffstat (limited to 'sqlglot/optimizer/pushdown_projections.py')
| -rw-r--r-- | sqlglot/optimizer/pushdown_projections.py | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sqlglot/optimizer/pushdown_projections.py b/sqlglot/optimizer/pushdown_projections.py index a73647c..54c5021 100644 --- a/sqlglot/optimizer/pushdown_projections.py +++ b/sqlglot/optimizer/pushdown_projections.py @@ -7,7 +7,7 @@ from sqlglot.optimizer.scope import Scope, traverse_scope SELECT_ALL = object() # Selection to use if selection list is empty -DEFAULT_SELECTION = alias("1", "_") +DEFAULT_SELECTION = lambda: alias("1", "_") def pushdown_projections(expression): @@ -93,7 +93,7 @@ def _remove_unused_selections(scope, parent_selections): # If there are no remaining selections, just select a single constant if not new_selections: - new_selections.append(DEFAULT_SELECTION.copy()) + new_selections.append(DEFAULT_SELECTION()) scope.expression.set("expressions", new_selections) if removed: @@ -106,5 +106,5 @@ def _remove_indexed_selections(scope, indexes_to_remove): selection for i, selection in enumerate(scope.selects) if i not in indexes_to_remove ] if not new_selections: - new_selections.append(DEFAULT_SELECTION.copy()) + new_selections.append(DEFAULT_SELECTION()) scope.expression.set("expressions", new_selections) |