Re: Postgresql & Oracle Heteregenous services - strange behaviour

Dnia Wed, 17 Jan 2007 13:04:28 +0000, Richard Huxton napisał(a):

> Andrew Sullivan wrote:

>> I bet it's getting the column list from the table or some such thing.
>> This is a lousy way to do it (the information_schema would be more
>> correct, although maybe no faster).
>
> That'd be my guess. And then it's not fetching any rows, expecting
> cursor-like behaviour. Of course we fetch all the rows before returning
> any results.

Bingo! select * from from "zew_patients"@my_postgresql results in
select a1.col1, a1.col2, a1.col3 from zew_patients in postgresql logs.

> The real solution would be to add "LIMIT 0" or "LIMIT 1" to the
> column-finding query, but I doubt that's possible with the Oracle plugin.
> Perhaps check if there's a "fetch N rows at a time" option for the ODBC
> setup that might help you.

Thank you both, I'll poke around and drop a note when I find something :).

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