FW: Minor inheritance/check bug: Inconsistent behavior

From: Amit kapila <amit(dot)kapila(at)huawei(dot)com>
To: "robertmhaas(at)gmail(dot)com" <robertmhaas(at)gmail(dot)com>
Cc: "tgl(at)sss(dot)pgh(dot)pa(dot)us" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: FW: Minor inheritance/check bug: Inconsistent behavior
Date: 2012-09-15 08:04:15
Message-ID: 6C0B27F7206C9E4CA54AE035729E9C382853289F@szxeml509-mbs
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Sorry, earlier sent below mail on hackers instead of bugs list. Just forwarding the same here.

________________________________________
From: pgsql-hackers-owner(at)postgresql(dot)org [pgsql-hackers-owner(at)postgresql(dot)org] on behalf of Amit kapila [amit(dot)kapila(at)huawei(dot)com]
Sent: Friday, September 14, 2012 7:34 PM
To: robertmhaas(at)gmail(dot)com
Cc: tgl(at)sss(dot)pgh(dot)pa(dot)us; pgsql-hackers(at)postgresql(dot)org
Subject: Re: [HACKERS] Minor inheritance/check bug: Inconsistent behavior

On Thu, 6 Sep 2012 14:50:05 -0400 Robert Hass wrote:

On Tue, Aug 28, 2012 at 6:40 AM, Amit Kapila <amit(dot)kapila(at)huawei(dot)com> wrote:
>> AFAICT during Update also, it doesn't contain useful. The only chance it
>> would have contain something useful is when it goes for EvalPlanQual and
>> then again comes to check for constraints. However these attributes get
>> filled in heap_update much later.
>
>> So now should the fix be that it returns an error for system column
>> reference except for OID case?

> +1.

1. I think in this scenario the error for system column except for tableOID should be thrown at Create/Alter time.

2. After setting OID in ExecInsert/ExecUpdate may be setting of same inside heap functions can be removed.

But for now I have kept them as it is.

Please find the Patch for bug-fix.

If this is okay, I shall send you the test cases for same.

With Regards,

Amit Kapila.

Attachment Content-Type Size
system_col_constr.patch text/plain 1.8 KB
ATT00001.txt text/plain 164 bytes

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