ramitg254 commented on code in PR #5715: URL: https://github.com/apache/hive/pull/5715#discussion_r2042711708
########## ql/src/java/org/apache/hadoop/hive/ql/ddl/table/column/drop/AlterTableDropColumnAnalyser.java: ########## @@ -0,0 +1,62 @@ +/* + * 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.hadoop.hive.ql.ddl.table.column.drop; + +import java.util.Map; + +import org.apache.hadoop.hive.common.TableName; +import org.apache.hadoop.hive.ql.QueryState; +import org.apache.hadoop.hive.ql.ddl.DDLWork; +import org.apache.hadoop.hive.ql.ddl.DDLSemanticAnalyzerFactory.DDLType; +import org.apache.hadoop.hive.ql.ddl.table.AbstractAlterTableAnalyzer; +import org.apache.hadoop.hive.ql.exec.TaskFactory; +import org.apache.hadoop.hive.ql.io.AcidUtils; +import org.apache.hadoop.hive.ql.metadata.Table; +import org.apache.hadoop.hive.ql.parse.ASTNode; +import org.apache.hadoop.hive.ql.parse.HiveParser; +import org.apache.hadoop.hive.ql.parse.SemanticException; + +/** + * Analyzer for drop column command. + */ +@DDLType(types = HiveParser.TOK_ALTERTABLE_DROPCOL) +public class AlterTableDropColumnAnalyser extends AbstractAlterTableAnalyzer { + + public AlterTableDropColumnAnalyser(QueryState queryState) throws SemanticException { + super(queryState); + } + + @Override + protected void analyzeCommand(TableName tableName, Map<String, String> partitionSpec, ASTNode command) + throws SemanticException { + boolean ifExists = command.getFirstChildWithType(HiveParser.TOK_IFEXISTS) != null; + String colName = ifExists ? command.getChild(1).getText().toLowerCase() : command.getChild(0).getText().toLowerCase(); Review Comment: I'll change that ########## ql/src/java/org/apache/hadoop/hive/ql/ddl/table/column/drop/AlterTableDropColumnAnalyser.java: ########## @@ -0,0 +1,62 @@ +/* + * 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.hadoop.hive.ql.ddl.table.column.drop; + +import java.util.Map; + +import org.apache.hadoop.hive.common.TableName; +import org.apache.hadoop.hive.ql.QueryState; +import org.apache.hadoop.hive.ql.ddl.DDLWork; +import org.apache.hadoop.hive.ql.ddl.DDLSemanticAnalyzerFactory.DDLType; +import org.apache.hadoop.hive.ql.ddl.table.AbstractAlterTableAnalyzer; +import org.apache.hadoop.hive.ql.exec.TaskFactory; +import org.apache.hadoop.hive.ql.io.AcidUtils; +import org.apache.hadoop.hive.ql.metadata.Table; +import org.apache.hadoop.hive.ql.parse.ASTNode; +import org.apache.hadoop.hive.ql.parse.HiveParser; +import org.apache.hadoop.hive.ql.parse.SemanticException; + +/** + * Analyzer for drop column command. + */ +@DDLType(types = HiveParser.TOK_ALTERTABLE_DROPCOL) +public class AlterTableDropColumnAnalyser extends AbstractAlterTableAnalyzer { + + public AlterTableDropColumnAnalyser(QueryState queryState) throws SemanticException { + super(queryState); + } + + @Override + protected void analyzeCommand(TableName tableName, Map<String, String> partitionSpec, ASTNode command) + throws SemanticException { + boolean ifExists = command.getFirstChildWithType(HiveParser.TOK_IFEXISTS) != null; + String colName = ifExists ? command.getChild(1).getText().toLowerCase() : command.getChild(0).getText().toLowerCase(); + boolean isCascade = false; + if (null != command.getFirstChildWithType(HiveParser.TOK_CASCADE)) { Review Comment: I'll change that -- This is an automated message from the Apache Git Service. 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