searching in array - Mailing list pgsql-general

Hi!
I'm using PostgreSQL 6.5b1 and I have two questions:
1. Is it possible to search for an element in an array even though I
don't know at which position the element is.
2. If this is possible how can I have a fast access. Can I create an
index, so that the search isn't sequential any more?
Thanks,
Peter
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 Peter Keller             Tel: 089-2190-2594
 Vermessungsrat z.A.         Fax: 089-2190-2459
                             mailto:Peter.Keller@bvv.bayern.de
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 Bezirksfinanzdirektion München    - Vermessungsabteilung
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 Zimmer: 404
 www: http://www.bayern.de/vermessung/
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