....adding to the last email, for now try the work_mem but you should be adding ANALYZE along with the VACUUM (with a cron job I guess) you do regularly.
I have been running pieces of my PL function by hand and I have found that the following queries work by themselves taking less than a second to execute.
getDateRange"('12/1/2005','12/1/2006') <- simply generates a date list. Doesn't even access a table
SELECT * FROM mutualfd_weekday_qbid WHERE cusip='92193920' AND pkey >= '12/15/2005' AND pkey <= '12/15/2006';
But when combined as below it takes 10 seconds to execute.
SELECT d1 as date, d2.data as data FROM "getDateRange"('12/1/2005','12/1/2006') d1 FULL OUTER JOIN (SELECT * FROM mutualfd_weekday_qbid WHERE cusip='92193920' AND pkey >= '12/15/2005' AND pkey <= '12/15/2006') d2 ON d1=d2.pkey;
Do I need to increase the work_mem or is this possible still a ANALYZE issue?
Benjamin
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