wangyum commented on a change in pull request #22903: [SPARK-24196][SQL] Implement Spark's own GetSchemasOperation URL: https://github.com/apache/spark/pull/22903#discussion_r244256608
########## File path: sql/hive-thriftserver/src/main/scala/org/apache/spark/sql/hive/thriftserver/SparkGetSchemasOperation.scala ########## @@ -0,0 +1,100 @@ +/* + * 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.hive.thriftserver + +import java.util.UUID + +import org.apache.hadoop.hive.ql.security.authorization.plugin.HiveOperationType +import org.apache.hive.service.cli._ +import org.apache.hive.service.cli.operation.GetSchemasOperation +import org.apache.hive.service.cli.session.HiveSession + +import org.apache.spark.internal.Logging +import org.apache.spark.sql.SQLContext +import org.apache.spark.sql.catalyst.catalog.SessionCatalog + +/** + * Spark's own GetSchemasOperation + * + * @param sqlContext SQLContext to use + * @param parentSession a HiveSession from SessionManager + * @param catalogName catalog name. null if not applicable. + * @param schemaName database name, null or a concrete database name + */ +private[hive] class SparkGetSchemasOperation( + sqlContext: SQLContext, + parentSession: HiveSession, + catalogName: String, + schemaName: String) + extends GetSchemasOperation(parentSession, catalogName, schemaName) with Logging { + + val catalog: SessionCatalog = sqlContext.sessionState.catalog + + private final val RESULT_SET_SCHEMA = new TableSchema() + .addStringColumn("TABLE_SCHEM", "Schema name.") Review comment: It's copy from [GetSchemasOperation.java#L49](https://github.com/apache/hive/blob/477649727dc9f232545ac4f2559fedda17665881/service/src/java/org/apache/hive/service/cli/operation/GetSchemasOperation.java#L49) and [`HiveDatabaseMetaData`](https://github.com/apache/hive/blob/7c9689a9f5625b4b17f3ea6dc275bd55442407f3/jdbc/src/java/org/apache/hive/jdbc/HiveDatabaseMetaData.java#L390) also use `TABLE_SCHEMA`. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
