[GitHub] [incubator-doris] ucasfl commented on a change in pull request #6023: Support alter default bucket_num of table

[GitBox <gi...@apache.org>]

ucasfl commented on a change in pull request #6023:
URL: https://github.com/apache/incubator-doris/pull/6023#discussion_r663838345



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File path: fe/fe-core/src/main/java/org/apache/doris/analysis/ModifyDistributionClause.java
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@@ -0,0 +1,57 @@
+// 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.doris.analysis;
+
+import org.apache.doris.alter.AlterOpType;
+import org.apache.doris.common.AnalysisException;
+
+// clause which is used to modify the default bucket number of hash distribution
+// MODIFY DISTRIBUTION DISTRIBUTED BY HASH('key') BUCKETS number;
+public class ModifyDistributionClause extends AlterTableClause {
+
+    private DistributionDesc distributionDesc;
+
+    public DistributionDesc getDistributionDesc() {
+        return distributionDesc;
+    }
+
+    public ModifyDistributionClause(DistributionDesc distributionDesc) {
+        super(AlterOpType.MODIFY_DISTRIBUTION);
+        this.distributionDesc = distributionDesc;
+        this.needTableStable = false;
+    }
+
+    @Override
+    public void analyze(Analyzer analyzer) throws AnalysisException {

Review comment:
       It seems that it has been checked in `AlterTableStmt.analyze()`.




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