improved sql parser support create table partition syntax

src/main/java/com/alibaba/druid/sql/ast/SQLSubPartitionBy.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright 1999-2101 Alibaba Group Holding Ltd.
+ *
+ * Licensed 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 com.alibaba.druid.sql.ast;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.alibaba.druid.sql.ast.statement.SQLAssignItem;
+
+public abstract class SQLSubPartitionBy extends SQLObjectImpl {
+
+    protected SQLExpr                 subPartitionsCount;
+    protected boolean                 linear;
+
+    protected List<SQLAssignItem>     options              = new ArrayList<SQLAssignItem>();
+
+    protected List<SQLSubPartition> subPartitionTemplate = new ArrayList<SQLSubPartition>();
+
+    public SQLExpr getSubPartitionsCount() {
+        return subPartitionsCount;
+    }
+
+    public void setSubPartitionsCount(SQLExpr subPartitionsCount) {
+        if (subPartitionsCount != null) {
+            subPartitionsCount.setParent(this);
+        }
+
+        this.subPartitionsCount = subPartitionsCount;
+    }
+
+    public boolean isLinear() {
+        return linear;
+    }
+
+    public void setLinear(boolean linear) {
+        this.linear = linear;
+    }
+
+    public List<SQLAssignItem> getOptions() {
+        return options;
+    }
+
+    public List<SQLSubPartition> getSubPartitionTemplate() {
+        return subPartitionTemplate;
+    }
+
+}