beliefer commented on code in PR #43707: URL: https://github.com/apache/spark/pull/43707#discussion_r1390564382
########## sql/api/src/main/scala/org/apache/spark/sql/types/VariantType.scala: ########## @@ -0,0 +1,39 @@ +/* + * 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.types + +import org.apache.spark.annotation.Stable + +/** + * The data type representing semi-structured values with arbitrary hierarchical data structures. At + * this moment, it is intended to store parsed JSON values and almost any other data types in the + * system (e.g., we don't plan to let it store a map with a non-string key type). In the future, we + * may also extend it to store other semi-structured data representation like XML. + */ +@Stable +class VariantType private () extends AtomicType { + // The default size is used in query planning to drive optimization decisions. 2048 is arbitrarily + // picked and we currently don't have any data to support it. This may need revisiting later. + override def defaultSize: Int = 2048 Review Comment: Got it. -- 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]
