Re: BUG #18230: Redundant comparison of a local variable 'tzp' address with a NULL value at dt_common.c - Mailing list pgsql-bugs

From RekGRpth
Subject Re: BUG #18230: Redundant comparison of a local variable 'tzp' address with a NULL value at dt_common.c
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Msg-id CAPgh2mJYYbjqk-Qk8mRGTPO1bWnkGngQf1BDucNUYNN9hoDWmw@mail.gmail.com
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In response to Re: BUG #18230: Redundant comparison of a local variable 'tzp' address with a NULL value at dt_common.c  (Michael Paquier <michael@paquier.xyz>)
List pgsql-bugs
Fixed!


чт, 7 дек. 2023 г. в 07:32, Michael Paquier <michael@paquier.xyz>:
>
> On Thu, Dec 07, 2023 at 09:51:57AM +0800, Richard Guo wrote:
> > There are several places in DecodeDateTime() where the value of '*tzp'
> > is changed.  It seems to me that these assignments are unnecessary since
> > the value of '*tzp' is not utilized anywhere in the code.  Can we also
> > remove these assignments?
>
> *tzp could be given to DecodeTimezone() and manipulated inside it, but
> you are right that we don't use it at all in the DecodeDateTime()
> path.  Other callers of DecodeTimezone() may depend on the changes
> done inside it, though.  Perhaps DecodeTimezone() should be extended
> so as it can accept a NULL value and use that in DecodeDateTime(),
> eliminating the need for *tzp entirely?
> --
> Michael

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