searching in array

From: Peter Keller <peter(dot)keller(at)bvv(dot)bayern(dot)de>
To: pgsql-general(at)postgresql(dot)org
Subject: searching in array
Date: 1999-05-31 10:51:00
Message-ID: 37526994.9A104451@bvv.bayern.de
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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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