Sergey Serebryanik

Please refer to explanation there https://github.com/yandex/clickhouse-jdbc/issues/188 In short, you shouldn't specify format yourself, because the driver queries server with format the driver supports, which is currently TabSeparatedWithNamesAndTypes.

To have rows_before_limit_at_least you can call ru.yandex.clickhouse.ClickHouseStatementImpl#executeQueryClickhouseResponse(java.lang.String) without specifying format. The driver will add FORMAT JSONCompact, query clickhouse and parse response to ru.yandex.clickhouse.response.ClickHouseResponse. The downside is that the whole result...

Thanks for report. In fact arrays are currently serialized different from single values of corresponding types set with setObject. For example timezones are not considered for Date and Timestamp in...

Could you compose a test for the problem? The basic case is covered with the test: https://github.com/yandex/clickhouse-jdbc/blob/master/src/test/java/ru/yandex/clickhouse/integration/ClickHouseStatementImplTest.java#L67 Is there concurrent access to the ResultSet?

Hello, nested arrays are not supported yet https://github.com/yandex/clickhouse-jdbc/issues/103

Hello, thanks for sharing our experience. Currently this is expected because current ClickHouseConnection implementation is not a connection itself, it is just an object holding a separate instance of http...