Re: [sqlsmith] Failed assertion in postgres_fdw/deparse.c:1116
От | Robert Haas |
---|---|
Тема | Re: [sqlsmith] Failed assertion in postgres_fdw/deparse.c:1116 |
Дата | |
Msg-id | CA+TgmoYP-3yn6LxziLGAx87m1W+R-p6X3pK65dcARbY8xM+faQ@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: [sqlsmith] Failed assertion in postgres_fdw/deparse.c:1116 (Etsuro Fujita <fujita.etsuro@lab.ntt.co.jp>) |
Ответы |
Push down join with PHVs (WAS: Re: [sqlsmith] Failed
assertion in postgres_fdw/deparse.c:1116)
|
Список | pgsql-hackers |
On Thu, Jun 16, 2016 at 10:44 PM, Etsuro Fujita <fujita.etsuro@lab.ntt.co.jp> wrote: > On 2016/06/16 22:00, Robert Haas wrote: >> On Thu, Jun 16, 2016 at 7:05 AM, Etsuro Fujita >> <fujita.etsuro@lab.ntt.co.jp> wrote: >>> >>> ISTM that a robuster solution to this is to push down the ft1-ft2-ft3 >>> join >>> with the PHV by extending deparseExplicitTargetList() and/or something >>> else >>> so that we can send the remote query like: >>> >>> select ft1.a, (ft3.a IS NOT NULL) from (ft1 inner join ft2 on ft1.a = >>> ft2.a) >>> left join ft3 on ft1.a = ft3.a > >> I completely agree we should have that, but not for 9.6. > > OK, I'll work on that for 10.0. Great, that will be a nice improvement. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
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