[GitHub] [shardingsphere] strongduanmu commented on a diff in pull request #18109: Support parsing `CREATE ROLLBACK SEGMENT` in Oracle

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

strongduanmu commented on code in PR #18109:
URL: https://github.com/apache/shardingsphere/pull/18109#discussion_r886223565


##########
shardingsphere-sql-parser/shardingsphere-sql-parser-statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/dialect/statement/oracle/ddl/OracleCreateRollbackSegmentStatement.java:
##########
@@ -0,0 +1,29 @@
+/*
+ * 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.shardingsphere.sql.parser.sql.dialect.statement.oracle.ddl;
+
+import lombok.ToString;
+import org.apache.shardingsphere.sql.parser.sql.common.statement.ddl.CreateRollbackSegmentStatement;
+import org.apache.shardingsphere.sql.parser.sql.dialect.statement.oracle.OracleStatement;
+
+/**
+ * Create rollback segment statement.
+ */
+@ToString
+public class OracleCreateRollbackSegmentStatement extends CreateRollbackSegmentStatement implements OracleStatement {

Review Comment:
   Please add final for OracleCreateRollbackSegmentStatement.



##########
shardingsphere-sql-parser/shardingsphere-sql-parser-statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/common/statement/ddl/CreateRollbackSegmentStatement.java:
##########
@@ -0,0 +1,28 @@
+/*
+ * 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.shardingsphere.sql.parser.sql.common.statement.ddl;
+
+import lombok.ToString;
+import org.apache.shardingsphere.sql.parser.sql.common.statement.AbstractSQLStatement;
+
+/**
+ * Create rollback segment statement.
+ */
+@ToString
+public class CreateRollbackSegmentStatement extends AbstractSQLStatement implements DDLStatement {

Review Comment:
   Are there any other dialect implementation classes for CreateRollbackSegmentStatement ? If only Oracle supports this syntax, then this abstract class is not needed.



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