johanl-db commented on code in PR #58632: URL: https://github.com/apache/spark/pull/58632#discussion_r4060564353
########## sql/catalyst/src/main/java/org/apache/spark/sql/connector/catalog/SchemaAlignmentConfig.java: ########## @@ -0,0 +1,53 @@ +/* + * 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.catalog; + +import org.apache.spark.annotation.Evolving; + +/** + * Schema-alignment configuration for batch/row-level writes to a {@link Table}. This allows + * connectors to configure casting behavior and handling of schema mismatches during DSv2 writes. + * It is not consulted for streaming writes, which do not go through this alignment path. + * + * @since 4.4.0 + */ +@Evolving +public interface SchemaAlignmentConfig { + + /** The strict data source v2 configuration, returned by {@link Table} by default. */ + SchemaAlignmentConfig DEFAULT = new SchemaAlignmentConfig() {}; + + /** + * Whether {@code spark.sql.storeAssignmentPolicy=LEGACY} is allowed for writes and row-level + * operations targeting this table. Data source v2 rejects LEGACY by default; a table can decide + * to opt-out from this restriction. Review Comment: Outdated comment -- This is an automated message from the Apache Git Service.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]
