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

[Lee Hughes <lee@xxxxxxxxxxxx>]

I got it to work in plpgsql through the use of pg_attribute and a temporary table with known field names like "field0", "field1", etc. Works very nicely and performance seems fine so far.

Thanks for your help.

Lee

On Tue, Feb 10, 2009 at 8:21 PM, Pavel Stehule <pavel.stehule@xxxxxxxxx> wrote:

Hello

2009/2/11 Lee Hughes <lee@xxxxxxxxxxxx>:

> 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@xxxxxxxxxxxxx> wrote:
>>
>> Lee Hughes <lee@xxxxxxxxxxxx> 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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