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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2023-01-04 07:24:08 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2023-01-04 07:24:08 +0000 |
| commit | 7a2201963d5b03bd1828d350ccaecb4eda30d30c (patch) | |
| tree | 19effbe90b8d78fdcb5f7d4bd0dd46b177ffdaab /sqlglot/optimizer/pushdown_projections.py | |
| parent | Releasing debian version 10.2.9-1. (diff) | |
| download | sqlglot-7a2201963d5b03bd1828d350ccaecb4eda30d30c.tar.xz sqlglot-7a2201963d5b03bd1828d350ccaecb4eda30d30c.zip | |
Merging upstream version 10.4.2.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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 abd9492..49789ac 100644 --- a/sqlglot/optimizer/pushdown_projections.py +++ b/sqlglot/optimizer/pushdown_projections.py @@ -6,7 +6,7 @@ from sqlglot.optimizer.scope import Scope, traverse_scope # Sentinel value that means an outer query selecting ALL columns SELECT_ALL = object() -# SELECTION TO USE IF SELECTION LIST IS EMPTY +# Selection to use if selection list is empty DEFAULT_SELECTION = alias("1", "_") @@ -91,7 +91,7 @@ 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) + new_selections.append(DEFAULT_SELECTION.copy()) scope.expression.set("expressions", new_selections) return removed_indexes @@ -102,5 +102,5 @@ 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) + new_selections.append(DEFAULT_SELECTION.copy()) scope.expression.set("expressions", new_selections) |