| 545 | 545 | |
| 546 | 546 | return dict(zip(outer_query.annotation_select, result)) |
| 547 | 547 | |
| 548 | def _get_referenced_annotations(self): | |
| 549 | """ | |
| 550 | Find all annotations that are referenced by filters, other annotations, | |
| 551 | or ordering. Returns None if all annotations should be kept. | |
| 552 | """ | |
| 553 | if not self.annotations: | |
| 554 | return set() | |
| 555 | ||
| 556 | referenced = set() | |
| 557 | ||
| 558 | # Check filters (WHERE clause) | |
| 559 | if self.where: | |
| 560 | referenced.update(self._extract_annotation_refs_from_node(self.where)) | |
| 561 | ||
| 562 | # Check ordering | |
| 563 | if self.order_by: | |
| 564 | for expr in self.order_by: | |
| 565 | referenced.update(self._extract_annotation_refs_from_expression(expr)) | |
| 566 | ||
| 567 | # Check other annotations for references | |
| 568 | for alias, annotation in self.annotations.items(): | |
| 569 | referenced.update(self._extract_annotation_refs_from_expression(annotation)) | |
| 570 | ||
| 571 | return referenced if referenced else None | |
| 572 | ||
| 573 | def _extract_annotation_refs_from_node(self, node): | |
| 574 | """Extract annotation references from a WhereNode or Q object.""" | |
| 575 | refs = set() | |
| 576 | if hasattr(node, 'children'): | |
| 577 | for child in node.children: | |
| 578 | if isinstance(child, (tuple, list)) and len(child) == 2: | |
| 579 | # This is a filter condition like (field, value) | |
| 580 | lhs, rhs = child | |
| 581 | refs.update(self._extract_annotation_refs_from_expression(lhs)) | |
| 582 | refs.update(self._extract_annotation_refs_from_expression(rhs)) | |
| 583 | elif hasattr(child, 'children'): | |
| 584 | # This is a nested Q object | |
| 585 | refs.update(self._extract_annotation_refs_from_node(child)) | |
| 586 | return refs | |
| 587 | ||
| 588 | def _extract_annotation_refs_from_expression(self, expr): | |
| 589 | """Extract annotation references from an expression.""" | |
| 590 | refs = set() | |
| 591 | if expr is None: | |
| 592 | return refs | |
| 593 | ||
| 594 | # Check if this is a direct reference to an annotation | |
| 595 | if hasattr(expr, 'refs') and expr.refs in self.annotations: | |
| 596 | refs.add(expr.refs) | |
| 597 | elif hasattr(expr, 'name') and expr.name in self.annotations: | |
| 598 | # This is likely an F() expression referencing an annotation | |
| 599 | refs.add(expr.name) | |
| 600 | ||
| 601 | # Recursively check source expressions | |
| 602 | if hasattr(expr, 'get_source_expressions'): | |
| 603 | for source_expr in expr.get_source_expressions(): | |
| 604 | refs.update(self._extract_annotation_refs_from_expression(source_expr)) | |
| 605 | ||
| 606 | return refs | |
| 607 | ||
| 608 | def _extract_annotation_refs_from_node(self, node): | |
| 609 | """Extract annotation references from a WhereNode or Q object.""" | |
| 610 | refs = set() | |
| 611 | if hasattr(node, 'children'): | |
| 612 | for child in node.children: | |
| 613 | if isinstance(child, (tuple, list)) and len(child) == 2: | |
| 614 | # This is a filter condition like (field, value) | |
| 615 | lhs, rhs = child | |
| 616 | refs.update(self._extract_annotation_refs_from_expression(lhs)) | |
| 617 | refs.update(self._extract_annotation_refs_from_expression(rhs)) | |
| 618 | elif hasattr(child, 'children'): | |
| 619 | # This is a nested Q object | |
| 620 | refs.update(self._extract_annotation_refs_from_node(child)) | |
| 621 | return refs | |
| 622 | ||
| 623 | def _extract_annotation_refs_from_expression(self, expr): | |
| 624 | """Extract annotation references from an expression.""" | |
| 625 | refs = set() | |
| 626 | if expr is None: | |
| 627 | return refs | |
| 628 | ||
| 629 | # Check if this is a direct reference to an annotation | |
| 630 | if hasattr(expr, 'refs') and expr.refs in self.annotations: | |
| 631 | refs.add(expr.refs) | |
| 632 | elif hasattr(expr, 'name') and expr.name in self.annotations: | |
| 633 | # This is likely an F() expression referencing an annotation | |
| 634 | refs.add(expr.name) | |
| 635 | ||
| 636 | # Recursively check source expressions | |
| 637 | if hasattr(expr, 'get_source_expressions'): | |
| 638 | for source_expr in expr.get_source_expressions(): | |
| 639 | refs.update(self._extract_annotation_refs_from_expression(source_expr)) | |
| 640 | ||
| 641 | return refs | |
| 642 | ||
| 548 | 643 | def get_count(self, using): |
| 549 | 644 | """ |
| 550 | 645 | Perform a COUNT() query using the current filter constraints. |
| 551 | 646 | """ |
| 552 | 647 | obj = self.clone() |
| 648 | # Strip unused annotations to improve performance | |
| 649 | referenced_annotations = self._get_referenced_annotations() | |
| 650 | if referenced_annotations is not None: | |
| 651 | # Only keep annotations that are referenced | |
| 652 | obj.annotations = { | |
| 653 | alias: annotation | |
| 654 | for alias, annotation in obj.annotations.items() | |
| 655 | if alias in referenced_annotations | |
| 656 | } | |
| 657 | # Clear the annotation cache | |
| 658 | obj._annotation_select_cache = None | |
| 553 | 659 | obj.add_annotation(Count("*"), alias="__count", is_summary=True) |
| 554 | 660 | return obj.get_aggregation(using, ["__count"])["__count"] |
| 555 | 661 |
| Test Name | Status |
|---|---|
test_non_aggregate_annotation_pruned (aggregation.tests.AggregateAnnotationPruningTests) | Fail |
test_unreferenced_aggregate_annotation_pruned (aggregation.tests.AggregateAnnotationPruningTests) | Fail |
test_unused_aliased_aggregate_pruned (aggregation.tests.AggregateAnnotationPruningTests) | Fail |
test_referenced_aggregate_annotation_kept (aggregation.tests.AggregateAnnotationPruningTests) | Pass |
test_add_implementation (aggregation.tests.AggregateTestCase) | Pass |
test_aggregate_alias (aggregation.tests.AggregateTestCase) | Pass |
test_aggregate_annotation (aggregation.tests.AggregateTestCase) | Pass |
test_aggregate_in_order_by (aggregation.tests.AggregateTestCase) | Pass |
test_aggregate_join_transform (aggregation.tests.AggregateTestCase) | Pass |
test_aggregate_multi_join (aggregation.tests.AggregateTestCase) | Pass |
test_aggregate_over_aggregate (aggregation.tests.AggregateTestCase) | Pass |
test_aggregate_over_complex_annotation (aggregation.tests.AggregateTestCase) | Pass |
test_aggregate_transform (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_after_annotation (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_compound_expression (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_expression (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_group_by (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_integer (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_not_in_aggregate (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_passed_another_aggregate (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_unset (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_unsupported_by_count (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_using_date_from_database (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_using_date_from_python (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_using_datetime_from_database (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_using_datetime_from_python (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_using_decimal_from_database (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_using_decimal_from_python (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_using_duration_from_database (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_using_duration_from_python (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_using_time_from_database (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_using_time_from_python (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_default_zero (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_exists_annotation (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_exists_multivalued_outeref (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_expressions (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_filter_exists (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_nested_subquery_outerref (aggregation.tests.AggregateTestCase) | Pass |
test_aggregation_order_by_not_selected_annotation_values (aggregation.tests.AggregateTestCase) | Pass |
Random() is not included in the GROUP BY when used for ordering. | Pass |
Subquery annotations are excluded from the GROUP BY if they are | Pass |
test_aggregation_subquery_annotation_exists (aggregation.tests.AggregateTestCase) | Pass |
Subquery annotations must be included in the GROUP BY if they use | Pass |
test_aggregation_subquery_annotation_related_field (aggregation.tests.AggregateTestCase) | Pass |
Subquery annotations and external aliases are excluded from the GROUP | Pass |
test_aggregation_subquery_annotation_values_collision (aggregation.tests.AggregateTestCase) | Pass |
test_alias_sql_injection (aggregation.tests.AggregateTestCase) | Pass |
test_annotate_basic (aggregation.tests.AggregateTestCase) | Pass |
test_annotate_defer (aggregation.tests.AggregateTestCase) | Pass |
test_annotate_defer_select_related (aggregation.tests.AggregateTestCase) | Pass |
test_annotate_m2m (aggregation.tests.AggregateTestCase) | Pass |
test_annotate_ordering (aggregation.tests.AggregateTestCase) | Pass |
test_annotate_over_annotate (aggregation.tests.AggregateTestCase) | Pass |
test_annotate_values (aggregation.tests.AggregateTestCase) | Pass |
test_annotate_values_aggregate (aggregation.tests.AggregateTestCase) | Pass |
test_annotate_values_list (aggregation.tests.AggregateTestCase) | Pass |
test_annotated_aggregate_over_annotated_aggregate (aggregation.tests.AggregateTestCase) | Pass |
test_annotation (aggregation.tests.AggregateTestCase) | Pass |
test_annotation_expressions (aggregation.tests.AggregateTestCase) | Pass |
test_arguments_must_be_expressions (aggregation.tests.AggregateTestCase) | Pass |
test_avg_decimal_field (aggregation.tests.AggregateTestCase) | Pass |
test_avg_duration_field (aggregation.tests.AggregateTestCase) | Pass |
test_backwards_m2m_annotate (aggregation.tests.AggregateTestCase) | Pass |
test_coalesced_empty_result_set (aggregation.tests.AggregateTestCase) | Pass |
test_combine_different_types (aggregation.tests.AggregateTestCase) | Pass |
test_complex_aggregations_require_kwarg (aggregation.tests.AggregateTestCase) | Pass |
test_complex_values_aggregation (aggregation.tests.AggregateTestCase) | Pass |
test_count (aggregation.tests.AggregateTestCase) | Pass |
test_count_distinct_expression (aggregation.tests.AggregateTestCase) | Pass |
test_count_star (aggregation.tests.AggregateTestCase) | Pass |
.dates() returns a distinct set of dates when applied to a | Pass |
test_decimal_max_digits_has_no_effect (aggregation.tests.AggregateTestCase) | Pass |
test_distinct_on_aggregate (aggregation.tests.AggregateTestCase) | Pass |
test_empty_aggregate (aggregation.tests.AggregateTestCase) | Pass |
test_empty_result_optimization (aggregation.tests.AggregateTestCase) | Pass |
test_even_more_aggregate (aggregation.tests.AggregateTestCase) | Pass |
test_exists_extra_where_with_aggregate (aggregation.tests.AggregateTestCase) | Pass |
test_exists_none_with_aggregate (aggregation.tests.AggregateTestCase) | Pass |
test_expression_on_aggregation (aggregation.tests.AggregateTestCase) | Pass |
test_filter_aggregate (aggregation.tests.AggregateTestCase) | Pass |
Filtering against an aggregate requires the usage of the HAVING clause. | Pass |
test_filtering (aggregation.tests.AggregateTestCase) | Pass |
test_fkey_aggregate (aggregation.tests.AggregateTestCase) | Pass |
Exists annotations are included in the GROUP BY if they are | Pass |
Subquery annotations are included in the GROUP BY if they are | Pass |
An annotation included in values() before an aggregate should be | Pass |
test_more_aggregation (aggregation.tests.AggregateTestCase) | Pass |
test_multi_arg_aggregate (aggregation.tests.AggregateTestCase) | Pass |
test_multiple_aggregates (aggregation.tests.AggregateTestCase) | Pass |
An annotation not included in values() before an aggregate should be | Pass |
test_nonaggregate_aggregation_throws (aggregation.tests.AggregateTestCase) | Pass |
test_nonfield_annotation (aggregation.tests.AggregateTestCase) | Pass |
test_order_of_precedence (aggregation.tests.AggregateTestCase) | Pass |
test_related_aggregate (aggregation.tests.AggregateTestCase) | Pass |
test_reverse_fkey_annotate (aggregation.tests.AggregateTestCase) | Pass |
test_single_aggregate (aggregation.tests.AggregateTestCase) | Pass |
Sum on a distinct() QuerySet should aggregate only the distinct items. | Pass |
test_sum_duration_field (aggregation.tests.AggregateTestCase) | Pass |
Subqueries do not needlessly contain ORDER BY, SELECT FOR UPDATE or | Pass |
Aggregation over sliced queryset works correctly. | Pass |
Doing exclude() on a foreign model after annotate() doesn't crash. | Pass |
test_values_aggregation (aggregation.tests.AggregateTestCase) | Pass |
test_values_annotation_with_expression (aggregation.tests.AggregateTestCase) | Pass |
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