Horton

Re: BUG #15032: Segmentation fault when running a particular query

Guo Xiang Tan <gxtan1990@gmail.com>

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From: Guo Xiang Tan <gxtan1990@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-bugs@lists.postgresql.org, Robert Haas <robertmhaas@gmail.com>
Date: 2018-02-12T14:13:45Z
Lists: pgsql-bugs 
Hi Tom,

We've upgraded to 10.2 and are not getting segmentation faults while
running the query anymore. Thank you for the fix.

On Sun, Jan 28, 2018 at 2:57 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:

> I wrote:
> > I'll look into an actual fix tomorrow.
>
> I've pushed a fix for this.  I concluded that there's no real reason
> to touch branches before 10: the index_markpos call is useless in the
> case in question, but it doesn't do any more than waste some cycles.
>
>                         regards, tom lane
>

Commits

  1. Avoid crash during EvalPlanQual recheck of an inner indexscan.

  2. Fix parallel index and index-only scans to fall back to serial.