[mythtv-users] Slow MySQL query after delete
pvr at groundhog.pair.com
Fri Sep 7 02:10:52 UTC 2007
Michael T. Dean wrote:
> I don't think much testing has been done on systems having identical
> recording rules. Though it shouldn't cause issues, cleaning out the
> duplicates (triplicates? whatever) would significantly simplify the
> query's processing, so doing so would be very much to your advantage.
Done and the improvement was substantial. There were several multiple
entries. One program had about a dozen duplicate entries and that just
happened to be the program with the most previously recorded episodes. I
also changed the recordings to be on a particular channel instead of any
channel which I think helped to.
I'm now down to ~150,000 rows examined in 5.5 seconds, 696 rows returned. 5
or 6 seconds is hugely better but still a bit of an annoyance. But I'm very
pleased with the results so far and the incredible support I've received on
this forum. Thank you to everyone!
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