Re: Referencing Cursor/Row/Record Fields in PL/PgSQL

From: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
To: Lee Hughes <lee(at)hughesys(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-general(at)postgresql(dot)org
Subject: Re: Referencing Cursor/Row/Record Fields in PL/PgSQL
Date: 2009-02-11 04:21:08
Message-ID: 162867790902102021r3df72751i6531fa69d9f462fd@mail.gmail.com
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Hello

2009/2/11 Lee Hughes <lee(at)hughesys(dot)com>:
> I thought that's what EXECUTE was for in plpgsql -- isn't there a way to
> extract the value of a field in a row/record variable by building a SELECT
> string and passing it to EXECUTE?
>

not in plpgsql. Try, plperl or some synamic PL language, please

regards
Pavel Stehule

> On Tue, Feb 10, 2009 at 1:22 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>>
>> Lee Hughes <lee(at)hughesys(dot)com> writes:
>> > Trying to figure out how to reference a field in a cursor result, or in
>> > a
>> > row/record variable that I've FETCHed the cursor into, where the target
>> > field name is in a variable or parameter. I think I'm just missing the
>> > dereferencing syntax.
>>
>> There isn't any --- plpgsql doesn't deal in accesses to unknown fields
>> (mainly because it can't know their type, and it's a strongly typed
>> language). Consider plperl or plpython or pl-anything-but-pgsql.
>>
>> regards, tom lane
>
>
>

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