Error code is always 0 when using newer JDBC versions

[lilyrubich]

When using clickhouse-jdbc 0.9.4, SQLException.getErrorCode() always returns the default value 0, even when the ClickHouse server reports a specific error code.

The actual ClickHouse error code is present in the underlying ServerException, but it is not propagated to SQLException.getErrorCode().

ClickHouse JDBC driver: clickhouse-jdbc:0.9.4
Java: 17

[chernser]

@lilyrubich ,

Thank you for reporting!
Will fix it.

[lilyrubich]

Hi, Clickhouse team! I will take on the task of fixing this problem

[lilyrubich]

pull request with fix: #2720