Re: Out of date comment in predicate.c

From: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>
To: Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>
Cc: Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Out of date comment in predicate.c
Date: 2017-08-23 18:23:55
Message-ID: e58a6e4f-d5c8-cceb-1594-c08d50877c09@2ndquadrant.com
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On 7/6/17 21:06, Thomas Munro wrote:
> On Sat, Jul 1, 2017 at 6:38 AM, Peter Eisentraut
> <peter(dot)eisentraut(at)2ndquadrant(dot)com> wrote:
>> On 6/27/17 01:21, Thomas Munro wrote:
>>> Commit ea9df812d8502fff74e7bc37d61bdc7d66d77a7f got rid of
>>> FirstPredicateLockMgrLock, but it's still referred to in a comment in
>>> predicate.c where the locking protocol is documented. I think it's
>>> probably best to use the name of the macro that's usually used to
>>> access the lock array in the code. Please see attached.
>>
>> Does this apply equally to PredicateLockHashPartitionLock() and
>> PredicateLockHashPartitionLockByIndex()? Should the comment mention or
>> imply both?
>
> Yeah, I guess so. How about listing the hashcode variant, as it's the
> more commonly used and important for a reader to understand of the
> two, but mentioning the ByIndex variant in a bullet point below? Like
> this.

Committed and backpatched to 9.4.

--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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