TeslaCN opened a new issue #16124:
URL: https://github.com/apache/shardingsphere/issues/16124
## Bug Report
### Which version of ShardingSphere did you use?
master - b31a5439e0c608ee9a735aadb426ed03b1e98a42
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-Proxy MySQL
### Expected behavior
Batched update succeed.
### Actual behavior
```
Exception in thread "main" java.sql.SQLException: Unsupported command:
[COM_SET_OPTION]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3978)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3914)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530)
at com.mysql.jdbc.MysqlIO.disableMultiQueries(MysqlIO.java:3670)
at
com.mysql.jdbc.PreparedStatement.executePreparedBatchAsMultiStatement(PreparedStatement.java:1492)
at
com.mysql.jdbc.PreparedStatement.executeBatchInternal(PreparedStatement.java:1303)
at com.mysql.jdbc.StatementImpl.executeBatch(StatementImpl.java:970)
at icu.wwj.MySQLBatchedUpdate.main(MySQLBatchedUpdate.java:18)
```
### Reason analyze (If you can)
MySQL JDBC driver enable `rewriteBatchedStatements=true`.
### Example codes for reproduce this issue (such as a github link).
```java
try (Connection connection =
DriverManager.getConnection("jdbc:mysql://127.0.0.1:13306/sbtest?useSSL=false&rewriteBatchedStatements=true",
"root", "root")) {
connection.setAutoCommit(false);
try (PreparedStatement preparedStatement =
connection.prepareStatement("update sbtest2 set k=k+1 where id = ?")) {
for (int i = 0; i < 10; i++) {
preparedStatement.setInt(1, i + 1);
preparedStatement.addBatch();
}
preparedStatement.executeBatch();
}
connection.rollback();
}
```
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