Tom Lane wrote:
> Hard to tell with this much info. How many rows are actually retrieved
> by the query (the planner is guessing 34, is that anywhere in the right
> ballpark? How big is the table, anyway?)
>
> Also, what's the definition of the index idx_mail_archive_list_yr_mo?
>
> It might help to see the EXPLAIN VERBOSE output also --- I'm wondering
> if all the WHERE clauses are getting used as index keys or not...
OK - there are 5851 rows in this query.
idx_mail_archive_list_yr_mo is an index on
mail_list (int)
mail_year (int)
mail_month(int)
With 5850 rows to sort, I wouldn't expect it to be lightning fast, but
there is a very definite difference from 6.5.3 (or 6.4.x).
As requested by "The Hermit Hacker", I took out the ORDER BY and it was
instantaneous.
I'm sending the explain verbose separately to you as it's very big.
Tim
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