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Re: Group by pushdown for JDBC or FederatedX
Thanks for the quick reply!
On Sat, Jul 4, 2020 at 1:02 AM Sergei Golubchik <serg@xxxxxxxxxxx> wrote:
> Hi, Dan!
> On Jul 03, Dan Hill wrote:
> > Hi!
> > I'm evaluating if I can use Maria's JDBC connector to join tables from
> > Apache Pinot (they have a prototype jdbc connector).
> > When external tables are used (like JDBC or FederatedX), are group bys
> > pushed down or do these connectors return the raw rows to Maria? I
> > see comments about lack of filter pushdowns for FederatedX. I
> > wouldn't the raw level data coming back from Pinot (there are too many
> > rows to be performant).
> No, at the moment neither FederatedX nor CONNECT engines
> support group by pushdown.
> The server supports it, some engines support it (namely, ColumnStore and
> Spider), but not all.
> VP of MariaDB Server Engineering
> and security@xxxxxxxxxxx