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From: SATYANARAYANA NARLAPURAM <[email protected]>
To: Richard Guo <[email protected]>
Cc: Chao Li <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Cc: Peter Eisentraut <[email protected]>
Subject: Re: Bug: Rule actions see wrong values for generated columns (NEW.gen reads OLD value)
Date: Mon, 13 Apr 2026 01:42:49 -0700
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Hi Richard,

On Mon, Apr 13, 2026 at 1:30 AM Richard Guo <[email protected]> wrote:

> On Mon, Apr 13, 2026 at 4:27 PM SATYANARAYANA NARLAPURAM
> <[email protected]> wrote:
> > On Mon, Apr 13, 2026 at 12:21 AM Chao Li <[email protected]> wrote:
> >> Do either of you plan to propose a patch for this? If so, please go
> ahead and I can review it. Otherwise, I can propose a patch in a couple of
> days.
>
> > I have a patch with me, let me post it shortly.
>
> Please feel free to share your patches.  I've been looking into this
> as well, but I'd be happy to see independent takes on it.
>

I reviewed your patch, it looks good. I ran the tests you added and a few
additional tests and they are passing. Please continue with your patch.
Maybe a test like "WHERE NEW.b > threshold" to confirm the expansion
happens before qual evaluation would be good.

Thanks,
Satya

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  Subject: Re: Bug: Rule actions see wrong values for generated columns (NEW.gen reads OLD value)
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