clickhouse-java icon indicating copy to clipboard operation
clickhouse-java copied to clipboard

Clickhouse & Pentaho

Open Qblolz opened this issue 7 years ago • 3 comments

I have some question about jdbc When i create connection in pentaho by jdbc - i can see tables and ect... but i dont see columns to create any relations. Its problem jdbc or pentaho ? In Pentaho logs talking about wrong types columns

Qblolz avatar May 23 '18 07:05 Qblolz

Same for me. Are there any plans to finish this jdbc? We need it very much!

Astervinus avatar May 24 '18 08:05 Astervinus

Could you please provide more details on what exactly you are doing and which result is expected?

blinkov avatar Jul 13 '18 12:07 blinkov

My problem when using Pentaho with Clickhouse are the ones needed in the commands.

Examples:

Step Update -> As most databases use standard sql and the normal update is update table set column = 'value' where filter = 'filter'
But since the update in the clickhouse is alter table <table_name> update col = expr1 where

Is it possible in JDBC to create an interpreter? When does the standard command convert to the clickhouse command?

Thank you for your time. Quilmer

picinato avatar Jul 19 '19 14:07 picinato

SQL rewrite has been implemented in v0.3.2, this should have been fixed in latest releases. On a side note, Apache Hop is successor of Pentaho Kettle, and it has better integration with ClickHouse.

zhicwu avatar Jan 10 '23 02:01 zhicwu