| ################################################################################ |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| ################################################################################ |
| |
| |
| def filter_predicate_by_primary_keys(predicate, primary_keys): |
| """ |
| Filter out predicates that are not related to primary key fields. |
| """ |
| from pypaimon.api import Predicate |
| |
| if predicate is None or primary_keys is None: |
| return predicate |
| |
| py_predicate = predicate.py_predicate |
| |
| if py_predicate.method in ['and', 'or']: |
| filtered_literals = [] |
| for literal in py_predicate.literals: |
| filtered = filter_predicate_by_primary_keys(literal, primary_keys) |
| if filtered is not None: |
| filtered_literals.append(filtered) |
| |
| if not filtered_literals: |
| return None |
| |
| if len(filtered_literals) == 1: |
| return filtered_literals[0] |
| |
| return Predicate(Predicate( |
| method=py_predicate.method, |
| index=py_predicate.index, |
| field=py_predicate.field, |
| literals=filtered_literals |
| ), None) |
| |
| if py_predicate.field in primary_keys: |
| return predicate |
| else: |
| return None |
