Re: domain over virtual generated column

From: jian he <jian(dot)universality(at)gmail(dot)com>
To: PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: domain over virtual generated column
Date: 2025-05-21 03:19:19
Message-ID: CACJufxEQopHp0ZTrKtnFXQ1U9oWd2=35oShV3TSK=roYPsC+Dw@mail.gmail.com
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On Mon, Apr 28, 2025 at 10:45 AM jian he <jian(dot)universality(at)gmail(dot)com> wrote:
>
> summary of attached patch:
> v1-0001
> we need to compute the generation expression for the domain with constraints,
> thus rename ExecComputeStoredGenerated to ExecComputeGenerated.
>
> v1-0002
> soft error variant of ExecPrepareExpr, ExecInitExpr. for soft error processing
> of CoerceToDomain. we don't want error messages like "value for domain d2
> violates check constraint "d2_check"" while validating existing domain data, we
> want something like:
> ERROR: column "b" of table "gtest24" contains values that violate the
> new constraint
>
> v1-0003 virtual generation columns over domain.

hi.

new patches attached.
mainly code refactoring, also try to reduce some unnecessary regress tests.

Attachment Content-Type Size
v2-0001-rename-ExecComputeStoredGenerated-to-ExecComputeGenerated.patch text/x-patch 5.2 KB
v2-0003-domain-over-virtual-generated-column.patch text/x-patch 34.7 KB
v2-0002-soft-error-variant-of-ExecPrepareExpr-ExecInitExpr.patch text/x-patch 3.9 KB

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