add testcase for #3957

src/test/java/com/alibaba/druid/bvt/sql/mysql/create/MySqlCreateDatabaseTest9_issue_3957.java

@@ -0,0 +1,20 @@
+package com.alibaba.druid.bvt.sql.mysql.create;
+
+import com.alibaba.druid.sql.MysqlTest;
+import com.alibaba.druid.sql.SQLUtils;
+import com.alibaba.druid.sql.ast.statement.SQLCreateDatabaseStatement;
+
+public class MySqlCreateDatabaseTest9_issue_3957
+        extends MysqlTest {
+
+    public void test_0() throws Exception {
+        String sql = "create database user default charset=utf8 collate=utf8_general_ci;";
+
+        SQLCreateDatabaseStatement stmt = (SQLCreateDatabaseStatement) SQLUtils.parseSingleMysqlStatement(sql);
+
+        assertEquals("CREATE DATABASE user CHARACTER SET utf8 COLLATE utf8_general_ci;", stmt.toString());
+//
+//        assertTrue(stmt.isPrimaryColumn("id"));
+//        assertTrue(stmt.isPrimaryColumn("`id`"));
+    }
+}