Alex Arul wrote:
count(*) is slow in innodb due to Multi Versioning. Which table type
are you using ?
Hi Alex,
Thanks for answering; All tables are MyISAMs. I'm beginning to wonder if
I am not taxed heavily for using floats for the geographic coordinates.
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count(*) is slow in innodb due to Multi Versioning. Which table type are you
using ?
Thanx
Alex
On 6/9/06, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Hi everybody,
MySQL 5.0.21 running on RedHat EL4, 2GHz CPU, 2,5GB RAM, RAID5/128MB
RAM. At one point I had to issue the following query on a
Innodb tables do not cache the rowcount like MyISAM tables
do, so mysql has to walk the entire table to get a count. If you have
a unique index, it should be able to scan that instead, which will be
faster.
On Sat, 2006-06-17 at 20:32 +0530, Alex Arul wrote:
count(*) is slow in innodb due to
Hi everybody,
MySQL 5.0.21 running on RedHat EL4, 2GHz CPU, 2,5GB RAM, RAID5/128MB
RAM. At one point I had to issue the following query on a 1.8GB 42mil
records table:
SELECT COUNT(*) FROM geoRecord WHERE geoRecord.geolatitude IS NOT NULL ;
As it took forever to complete (I mean more than
