Re: SET syntax in INSERT

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Marko Tiikkaja <marko(at)joh(dot)to>, Vitaly Burovoy <vitaly(dot)burovoy(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Pgsql Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: SET syntax in INSERT
Date: 2016-01-14 20:14:58
Message-ID: 569801C2.8070406@dunslane.net
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On 01/14/2016 03:00 PM, Marko Tiikkaja wrote:
> On 2016-01-14 20:50, Vitaly Burovoy wrote:
>> On 1/14/16, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>>> Assume a table with an int-array column, and consider
>>>
>>> INSERT INTO foo SET arraycol[2] = 7, arraycol[4] = 11;
>>
>> Right part is a column name, not an expression. Isn't it?
>> So "arraycol[2]" is not possible there.
>
> I think the idea here was that it's allowed in UPDATE. But I don't
> see the point of allowing that in an INSERT.
>
>
>

Right. Why not just forbid anything other than a plain column name on
the LHS for INSERT, at least as a first cut.

cheers

andrew

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