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From: Tom Lane <tgl@sss.pgh.pa.us>
To: pgsql-hackers@postgresql.org, Andres Freund <andres@anarazel.de>
cc: Thomas Munro <thomas.munro@enterprisedb.com>,
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Subject: Re: pgsql: Add support for coordinating record typmods among parallel
 worke
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Comments: In-reply-to Andres Freund <andres@anarazel.de>
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Date: Fri, 15 Sep 2017 00:29:48 -0400
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Andres Freund <andres@anarazel.de> writes:
> Sorry for missing that during review - unfortunately I don't have a compu=
ter with me now - so I won't get around to this till tomorrow...

It turns out that this breaks my local build, too, so I went ahead and
pushed a fix.

At least two buildfarm members think there's something deeper broken
here:

2017-09-15 00:08:34.061 EDT [97092:75] LOG:  worker process: parallel worke=
r for PID 101175 (PID 101256) was terminated by signal 11: Segmentation fau=
lt
2017-09-15 00:08:34.061 EDT [97092:76] DETAIL:  Failed process was running:=
 select * from pg_get_object_address('operator of access method', '{btree,i=
nteger_ops,1}', '{int4,bool}');

I wonder if this indicates you forgot to consider transmission of state
to parallel worker processes.

			regards, tom lane


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