Re: Just trying to read first row in table based on index, pg scans and sorts instead?

Thanks, that fixed it! That's good news. The bad news is that I had made it a
rule to add the parens because a similar query would "ignore" the an index
if I left the parens off. I'll try to did up the counter example. It was for
a different table, index.

reports=> EXPLAIN ANALYZE SELECT * FROM rx ORDER BY storenbr,rxnbr,rfnbr
LIMIT 1;
QUERY
PLAN
-----------------------------------------------------------------------------------------------------------------------------------------------------
Limit (cost=0.00..0.68 rows=1 width=828) (actual time=0.018..0.018 rows=1
loops=1)
-> Index Scan using rx_storenbr_rxnbr_rfnbr_index2 on rx
(cost=0.00..125687.98 rows=185551 width=828) (actual time=0.016..0.016
rows=1 loops=1)
Total runtime: 0.164 ms
(3 rows)

reports=>

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