Re: pointless check in RelationBuildPartitionDesc

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>
Cc: Michael Paquier <michael(at)paquier(dot)xyz>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: pointless check in RelationBuildPartitionDesc
Date: 2018-09-05 13:05:57
Message-ID: 20180905130557.4spqs67cq7jdhoq4@alvherre.pgsql
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On 2018-Sep-05, Amit Langote wrote:

> On 2018/09/05 1:50, Alvaro Herrera wrote:
> > Proposed patch. Checking isnull in a elog(ERROR) is important, because
> > the column is not marked NOT NULL. This is not true for other columns
> > where we simply do Assert(!isnull).
>
> Looks good. Thanks for taking care of other sites as well.
>
> @@ -14705,7 +14705,9 @@ ATExecDetachPartition(Relation rel, RangeVar *name)
>
> (void) SysCacheGetAttr(RELOID, tuple, Anum_pg_class_relpartbound,
> &isnull);
> - Assert(!isnull);
> + if (isnull)
> + elog(ERROR, "null relpartbound for relation %u",
> + RelationGetRelid(partRel));
>
> In retrospect, I'm not sure why this piece of code is here at all; maybe
> just remove the SycCacheGetAttr and Assert?

Yeah, good idea, will do.

--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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