|From:||Etsuro Fujita <fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp>|
|To:||Ashutosh Bapat <ashutosh(dot)bapat(at)enterprisedb(dot)com>, Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>|
|Cc:||Shigeru Hanada <shigeru(dot)hanada(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>|
|Subject:||Re: inherit support for foreign tables|
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(2014/06/24 16:30), Etsuro Fujita wrote:
> (2014/06/23 18:35), Ashutosh Bapat wrote:
>> Selecting tableoid on parent causes an error, "ERROR: cannot extract
>> system attribute from virtual tuple". The foreign table has an OID which
>> can be reported as tableoid for the rows coming from that foreign table.
>> Do we want to do that?
> No. I think it's a bug. I'll fix it.
Done. I think this is because create_foreignscan_plan() makes reference
to attr_needed, which isn't computed for inheritance children. To aboid
this, I've modified create_foreignscan_plan() to see reltargetlist and
baserestrictinfo, instead of attr_needed. Please find attached an
updated version of the patch.
Sorry for the delay.
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