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IN list and OR processing - Mailing list pgsql-hackers

From Bruce Momjian
Subject IN list and OR processing
Date
Msg-id 199902240446.XAA04991@candle.pha.pa.us
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List pgsql-hackers
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I saw this in the Ingres list.  It describes exactly how we process 
SELECT * FROM tab WHERE col IN (1,2,3,4)

and describes a problem we could have if the list is large.

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