Lucas-307 opened a new issue #8650:
URL: https://github.com/apache/shardingsphere/issues/8650
## Bug Report
### Which version of ShardingSphere did you use?
5.0.0-RC1-SNAPSHOT
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-Proxy
### Expected behavior
I want execute some batch delete by proxy, but it failed.
```java
private void executeBatchDelete(final Connection connection, final
List<DataRecord> dataRecords) throws SQLException {
PreparedStatement ps = connection.prepareStatement(deleteSQL);
ps.setQueryTimeout(30);
for (DataRecord each : dataRecords) {
conditionColumns = RecordUtil.extractConditionColumns(each,
importerConfig.getShardingColumnsMap().get(each.getTableName()));
for (int i = 0; i < conditionColumns.size(); i++) {
ps.setObject(i + 1, conditionColumns.get(i).getValue());
}
ps.addBatch();
}
ps.executeBatch(); // throw a SQLException
}
```
### Actual behavior
```
java.sql.SQLException: 1Unsupported 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
com.zaxxer.hikari.pool.ProxyStatement.executeBatch(ProxyStatement.java:131)
at
com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeBatch(HikariProxyPreparedStatement.java)
at
org.apache.shardingsphere.scaling.core.execute.executor.importer.AbstractJDBCImporter.executeBatchDelete(AbstractJDBCImporter.java:205)
```
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