Peter Eisentraut has applied a patch to fix this.
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On Wed, Aug 30, 2023 at 10:07:24AM -0400, David Steele wrote:
> On 8/30/23 08:10, Aleksander Alekseev wrote:
> >
> > > I am seeing a new gcc 12.2.0 compiler warning from
> > > src/backend/commands/sequence.c:
> >
> > Yep, the compiler is just not smart enough to derive that this
> > actually is not going to happen.
> >
> > Here is a proposed fix.
>
> Here's an alternate way to deal with this which is a bit more efficient
> (code not tested):
>
> - case SEQ_COL_CALLED:
> - coldef = makeColumnDef("is_called", BOOLOID, -1, InvalidOid);
> - value[i - 1] = BoolGetDatum(false);
> - break;
> + default:
> + Assert(i == SEQ_COL_CALLED);
> + coldef = makeColumnDef("is_called", BOOLOID, -1, InvalidOid);
> + value[i - 1] = BoolGetDatum(false);
> + break;
>
> The downside is that any garbage in i will lead to processing as
> SEQ_COL_CALLED. But things are already pretty bad in that case, ISTM, even
> with the proposed patch (or the original code for that matter).
>
> Regards,
> -David
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