Re: server crashed with TRAP: FailedAssertion("!(!parallel_aware || pathnode->path.parallel_safe)"

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
Cc: Amit Khandekar <amitdkhan(dot)pg(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Rajkumar Raghuwanshi <rajkumar(dot)raghuwanshi(at)enterprisedb(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, amul sul <sulamul(at)gmail(dot)com>
Subject: Re: server crashed with TRAP: FailedAssertion("!(!parallel_aware || pathnode->path.parallel_safe)"
Date: 2018-06-19 14:15:33
Message-ID: CA+TgmoYMe+ovO+aHHdAcT3_X+4BhKzFQ4H7swCPvR5_p7kHFuQ@mail.gmail.com
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On Mon, Jun 18, 2018 at 11:36 PM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> Fixed in the attached patch. I will wait for a day or two to see if
> Tom or Robert wants to say something and then commit.

The patch LGTM but the commit message could perhaps use a little
word-smithing, e.g. "Commit ab72716778 allowed Parallel Append paths
to be generated for a relation that is not parallel safe. Prevent
that from happening."

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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