improve mysql ddl parser

2023-03-04 19:17:16 +00:00 · 2013-04-28 22:54:07 +08:00
parent 534d459dee
commit 229d548abc
11 changed files with 525 additions and 19 deletions
@@ -0,0 +1,76 @@
+/*
+ * Copyright 1999-2011 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.bvt.sql.mysql;
+
+import java.util.List;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.MysqlTest;
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
+import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
+import com.alibaba.druid.stat.TableStat;
+
+public class MySqlCreateTableTest42 extends MysqlTest {
+
+    public void test_0() throws Exception {
+        String sql = "CREATE TABLE rc (" + //
+                     "    a INT NOT NULL, " + //
+                     "    b INT NOT NULL" + //
+                     ")" + //
+                     "PARTITION BY RANGE COLUMNS(a,b) (" + //
+                     "    PARTITION p0 VALUES LESS THAN (10,5)," + //
+                     "    PARTITION p1 VALUES LESS THAN (20,10)," + //
+                     "    PARTITION p2 VALUES LESS THAN (MAXVALUE,15)," + //
+                     "    PARTITION p3 VALUES LESS THAN (MAXVALUE,MAXVALUE)" + //
+                     ");"; //
+
+        MySqlStatementParser parser = new MySqlStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLStatement stmt = statementList.get(0);
+        print(statementList);
+
+        Assert.assertEquals(1, statementList.size());
+
+        MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
+        stmt.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("orderBy : " + visitor.getOrderByColumns());
+
+        Assert.assertEquals(1, visitor.getTables().size());
+        Assert.assertEquals(2, visitor.getColumns().size());
+        Assert.assertEquals(0, visitor.getConditions().size());
+
+        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("rc")));
+
+        String output = SQLUtils.toMySqlString(stmt);
+        Assert.assertEquals("CREATE TABLE rc (" + //
+                            "\n\ta INT NOT NULL, " + //
+                            "\n\tb INT NOT NULL" + //
+                            "\n) PARTITION BY RANGE (a, b)(" + //
+                            "\n\tPARTITION p0 VALUES LESS THAN (10, 5), " + //
+                            "\n\tPARTITION p1 VALUES LESS THAN (20, 10), " + //
+                            "\n\tPARTITION p2 VALUES LESS THAN (MAXVALUE, 15), " + //
+                            "\n\tPARTITION p3 VALUES LESS THAN (MAXVALUE, MAXVALUE)" + //
+                            "\n)", output);
+
+    }
+}