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Comparing arrays

From: A Gilmore <agilmore(at)shaw(dot)ca>
To: Postgresql Mailing list <pgsql-novice(at)postgresql(dot)org>
Subject: Comparing arrays
Date: 2005-10-03 04:09:45
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Lists: pgsql-novice

Id like to compare two arrays, and if any value is found in both, return 
true.  Is this possible without needing a procedure to loop through one?

For example, say categories is an array :

SELECT * FROM t1 WHERE ANY(ARRAY[5,7,9]) = ANY(categories);

Obviously this doesn't work, but you can kinda see what Im trying to do.

Thank you for any insight,
- A Gilmore


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