Re: Wrong dead return value in jsonb_utils.c

From: Michael Paquier <michael(at)paquier(dot)xyz>
To: Rikard Falkeborn <rikard(dot)falkeborn(at)gmail(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Wrong dead return value in jsonb_utils.c
Date: 2019-05-12 09:07:38
Message-ID: 20190512090738.GB2120@paquier.xyz
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On Sun, May 12, 2019 at 03:18:08AM +0200, Rikard Falkeborn wrote:
> Returning -1 from a function with bool as return value is the same as
> returning true. Now, the code is dead (since elog(ERROR, ...) does not
> return) so it doesn't matter to the compiler, but changing to false is less
> confusing for the programmer. Appologies if this is seen as unnecessary
> churn.
>
> The same code is present since 9.4, but perhaps it's not really worth
> backporting since it is more of an aesthetic change?

This is an aesthetic change in the fact that elog(ERROR) would not
cause -1 to be returned, still I agree that it is cleaner to do things
the way your patch does. And the origin of the issue is I think that
the code of equalsJsonbScalarValue() has been copy-pasted from
compareJsonbScalarValue().

As that's really cosmetic, I would just change that on HEAD, or
perhaps others feel differently?
--
Michael

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