Can not get column MetaData when execute a desc query

[JaynLau]

Describe the bug

When log4j2 jdbc appender insert logs into clickhouse, clickhouse use a "desc ({SQL})" statement to get column MetaData, but clickhouse-java-0.6.4 dropped !response.getColumns().isEmpty() in ClickHouseStatementImpl.updateResult(), then getMetaData() return empty!

clickhouse-java-0.6.3:

clickhouse-java-0.6.4:

log4j2 can not get the column meta data now!!!

Configuration

Environment

• Client version: 0.6.4

[chernser]

@JaynLau thank you for reporting!
Will fix.