OR clause status report

From: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
To: hackers(at)postgreSQL(dot)org (PostgreSQL-development)
Subject: OR clause status report
Date: 1998-07-31 05:32:51
Message-ID: 199807310532.BAA16456@candle.pha.pa.us
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I have succeeded in making OR clauses use indexes. I have not dealt
with some of the more complex issues like x=3 or y=5 as Vadim mentioned,
but at least it works.

test=> select * from test where x=102532 or x=102533;
x
------
102532
102533
(2 rows)

test=> explain select * from test where x=102532 or x=102533;
NOTICE: QUERY PLAN:

Index Scan using i_test on test (cost=4.10 size=1 width=4)

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