Re: [HACKERS] What is the extent of FDW join pushdown support in 9.5?

2015-10-02 Thread Bruce Momjian
On Wed, Sep 16, 2015 at 04:32:51PM -0400, Peter Eisentraut wrote: > On 9/15/15 10:02 PM, Kouhei Kaigai wrote: > >> The 9.5 release notes contain this promising but cryptic item: > >> > >> - Allow foreign data wrappers and custom scans to implement join > >> pushdown (KaiGai Kohei) > >> > >> As

Re: [HACKERS] What is the extent of FDW join pushdown support in 9.5?

2015-09-16 Thread Peter Eisentraut
On 9/15/15 10:02 PM, Kouhei Kaigai wrote: >> The 9.5 release notes contain this promising but cryptic item: >> >> - Allow foreign data wrappers and custom scans to implement join >> pushdown (KaiGai Kohei) >> >> As phrased, this seems to mean, "it can be done, but we haven't done >> it". But

[HACKERS] What is the extent of FDW join pushdown support in 9.5?

2015-09-15 Thread Peter Eisentraut
The 9.5 release notes contain this promising but cryptic item: - Allow foreign data wrappers and custom scans to implement join pushdown (KaiGai Kohei) As phrased, this seems to mean, "it can be done, but we haven't done it". But there is no link to any documentation that explains how to do

Re: [HACKERS] What is the extent of FDW join pushdown support in 9.5?

2015-09-15 Thread Kouhei Kaigai
> The 9.5 release notes contain this promising but cryptic item: > > - Allow foreign data wrappers and custom scans to implement join > pushdown (KaiGai Kohei) > > As phrased, this seems to mean, "it can be done, but we haven't done > it". But there is no link to any documentation that explains