just wondering if there's a special tweak i can do to force more usage of indexes to do BITMAP ands?
I have a table like A int B int C int D int E int F int g int where A/B/C/D/E are indexes There's ~20millions rows in the table. Query are something like this. select * from table where A=X and B = Y and C = Z and D = AA and E = BB the query plan will only pick 2 indexes to do the bitmap. I'm not sure how to tweak the config for it to use more indexes. Box is a celeron 1.7 w/ 768MB ram with shared buffers at 250MB and effective cache size 350MB -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
