Re: [PERFORM] Help understanding stat numbers

2007-11-08 Thread Tom Lane
"Chris Hoover" <[EMAIL PROTECTED]> writes: > If there has been no scans on an index (as according to > pg_stat_user_indexes), why is pg_statio_user_indexes showing non 0 > values in idx_blks_hit/read? I grow weary, but I think that "scan" is only incremented by commencing a SELECT search using the

[PERFORM] Help understanding stat numbers

2007-11-08 Thread Chris Hoover
I have a database where I dropped all indexes on a table last night and built a new set of indexes. The goal is to try and let the database have fewer indexes and use them more. I removed a bunch of indexes that were surviving from our 7.3 days where functionality will now be covered by 8.1's use