Re: Avoid querying a specific field - how?
От | Ibrahim Tekin |
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Тема | Re: Avoid querying a specific field - how? |
Дата | |
Msg-id | e4dcba670602210732h4472e9b6lbba9f5d09058d6dd@mail.gmail.com обсуждение исходный текст |
Ответ на | Avoid querying a specific field - how? (Stefan Schwarzer <stefan.schwarzer@grid.unep.ch>) |
Ответы |
Re: Avoid querying a specific field - how?
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Список | pgsql-sql |
i may i misunderstood your question but it seems to me, partial indexes will work for you.
check this example: http://www.postgresql.org/docs/8.1/interactive/indexes-partial.html#INDEXES-PARTIAL-EX2
check this example: http://www.postgresql.org/docs/8.1/interactive/indexes-partial.html#INDEXES-PARTIAL-EX2
On 2/21/06, Stefan Schwarzer <stefan.schwarzer@grid.unep.ch> wrote:
Hi,
does anyone know how to build a query that SELECTs all fields but not
a specific one? I have a couple of tables, holding statistical
information as well as the geospatial one (via Postgis). When I query
the table I'd like to query only the statistical part - not the
geospatial, which is not necessary and slows done incredibly the
query. I searched a bit within the Postgres SQL domain. It seems
there is an EXCEPT statement, but it seems that it works differently...
Thanks for any help,
Stef
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