From: | Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com> |
---|---|
To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Index corruption with CREATE INDEX CONCURRENTLY |
Date: | 2017-02-06 04:17:43 |
Message-ID: | CABOikdP4y1cguS+fqSuB07EfmPe=paa3Mt6-nMob7XWMNRMi=w@mail.gmail.com |
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Lists: | pgsql-hackers |
On Mon, Feb 6, 2017 at 9:41 AM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
>
>
> Hmm. Consider that the first time relcahe invalidation occurs while
> computing id_attrs, so now the retry logic will compute the correct
> set of attrs (considering two indexes, if we take the example given by
> Alvaro above.).
I don't quite get that. Since rd_idattr must be already cached at that
point and we don't expect to process a relcache flush between successive
calls to RelationGetIndexAttrBitmap(), we should return a consistent copy
of rd_idattr. But may be I am missing something.
Thanks,
Pavan
--
Pavan Deolasee http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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