aokolnychyi commented on a change in pull request #32921: URL: https://github.com/apache/spark/pull/32921#discussion_r659062826
########## File path: sql/catalyst/src/main/java/org/apache/spark/sql/connector/read/SupportsRuntimeFiltering.java ########## @@ -0,0 +1,60 @@ +/* + * 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. + */ + +package org.apache.spark.sql.connector.read; + +import org.apache.spark.annotation.Experimental; +import org.apache.spark.sql.connector.expressions.NamedReference; +import org.apache.spark.sql.sources.Filter; + +/** + * A mix-in interface for {@link Scan}. Data sources can implement this interface if they can + * filter initially planned {@link InputPartition}s using predicates Spark infers at runtime. + * <p> + * Note that Spark will push runtime filters only if they are beneficial. + * + * @since 3.2.0 + */ +@Experimental +public interface SupportsRuntimeFiltering extends Scan { + /** + * Returns attributes this scan can be filtered by at runtime. + * <p> + * Spark will call {@link #filter(Filter[])} if it can derive a runtime + * predicate for any of the filter attributes. + */ + NamedReference[] filterAttributes(); + + /** + * Filters this scan using runtime filters. + * <p> + * The provided expressions must be interpreted as a set of filters that are ANDed together. + * Implementations may use the filters to prune initially planned {@link InputPartition}s. + * <p> + * If the scan also implements {@link SupportsReportPartitioning}, it must preserve Review comment: We can remove this requirement once `SupportsReportPartitioning` is changed. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
