aokolnychyi commented on a change in pull request #3633: URL: https://github.com/apache/iceberg/pull/3633#discussion_r760439134
########## File path: spark/v3.2/spark/src/main/java/org/apache/spark/sql/connector/iceberg/write/RowLevelOperation.java ########## @@ -0,0 +1,89 @@ +/* + * 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.iceberg.write; + +import org.apache.spark.sql.connector.expressions.NamedReference; +import org.apache.spark.sql.connector.read.ScanBuilder; +import org.apache.spark.sql.connector.write.WriteBuilder; +import org.apache.spark.sql.util.CaseInsensitiveStringMap; + +/** + * A logical representation of a data source DELETE, UPDATE, or MERGE operation that requires + * rewriting data. + */ +public interface RowLevelOperation { + + /** + * The SQL operation being performed. + */ + enum Command { + DELETE, UPDATE, MERGE + } + + /** + * Returns the description associated with this row-level operation. + */ + default String description() { + return this.getClass().toString(); + } + + /** + * Returns the actual SQL operation being performed. + */ + Command command(); + + /** + * Returns a scan builder to configure a scan for this row-level operation. + * <p> + * Sources fall into two categories: those that can handle a delta of rows and those that need + * to replace groups (e.g. partitions, files). Sources that handle deltas allow Spark to quickly + * discard unchanged rows and have no requirements for input scans. Sources that replace groups Review comment: Let's discuss it during the implementation. ########## File path: spark/v3.2/spark/src/main/java/org/apache/spark/sql/connector/iceberg/write/ExtendedLogicalWriteInfo.java ########## @@ -0,0 +1,38 @@ +/* + * 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.iceberg.write; + +import org.apache.spark.sql.connector.write.LogicalWriteInfo; +import org.apache.spark.sql.types.StructType; + +/** + * A class that holds logical write information not covered by LogicalWriteInfo in Spark. + */ +public interface ExtendedLogicalWriteInfo extends LogicalWriteInfo { + /** + * the schema of the input metadata from Spark to data source. + */ + StructType metadataSchema(); + + /** + * the schema of the ID columns from Spark to data source. Review comment: Fixed. -- 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]
