Michael Are there plans to add LIMIT push down? It's quite a natural thing to do in interactive querying.
Sent from my iPhone > On 4 May 2015, at 22:57, Michael Armbrust <mich...@databricks.com> wrote: > > The JDBC interface for Spark SQL does not support pushing down limits today. > >> On Mon, May 4, 2015 at 8:06 AM, Robin East <robin.e...@xense.co.uk> wrote: >> and a further question - have you tried running this query in pqsl? what’s >> the performance like there? >> >>>> On 4 May 2015, at 16:04, Robin East <robin.e...@xense.co.uk> wrote: >>>> >>>> What query are you running. It may be the case that your query requires >>>> PosgreSQL to do a large amount of work before identifying the first n rows >>>> On 4 May 2015, at 15:52, Yi Zhang <zhangy...@yahoo.com.INVALID> wrote: >>>> >>>> I am trying to query PostgreSQL using LIMIT(n) to reduce memory size and >>>> improve query performance, but I found it took long time as same as >>>> querying not using LIMIT. It let me confused. Anybody know why? >>>> >>>> Thanks. >>>> >>>> Regards, >>>> Yi >
