On Sun, Oct 09, 2005 at 12:46:51PM -0700, CSN wrote:
> select * from table1 where id=586;
> 586|a|b|c|d
Do you get different results from the following queries?
SET enable_seqscan TO on;
SET enable_indexscan TO off;
SELECT * FROM table1 WHERE id = 586;
SET enable_seqscan TO off;
SET enable_indexscan TO on;
SELECT * FROM table1 WHERE id = 586;
> Yet:
> select * from table1 where id>=585 and id<=587;
> 585|c|a|e|f
> 586|a|b|c|d
> 586|a|b|c|d
> 587|g|e|r|z
What's the output of the following query?
RESET enable_seqscan;
RESET enable_indexscan;
SELECT oid, ctid, xmin, cmin, xmax, cmax, *
FROM table1
WHERE id >= 585 AND id <= 587;
If you get the error 'column "oid" does not exist' then you've
created the table without oids, so just omit oid from the select
list:
SELECT ctid, xmin, cmin, xmax, cmax, *
FROM table1
WHERE id >= 585 AND id <= 587;
> Wow, how is this possible? I'm using PG 8.0.3 on
> Windows XP. This computer has been crashing repeatedly
> lately, if that could be blamed (bad memory? hard
> disk? I haven't quite figured out why.)
Faulty hardware is one possibile explanation.
--
Michael Fuhr
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