[mapguide-users] sql spatial too slow still?
martin.morrison at edsi.com
Mon Nov 15 22:50:39 EST 2010
You've got something either misconfigured or wrong with your index. SQL server is extremely fast for us. We moved every layer we had to it. Gained quite a bit of speed.
From: mapguide-users-bounces at lists.osgeo.org [mapguide-users-bounces at lists.osgeo.org] On Behalf Of Jamo [adam.jamison at portbris.com.au]
Sent: Monday, November 15, 2010 9:00 PM
To: mapguide-users at lists.osgeo.org
Subject: [mapguide-users] sql spatial too slow still?
I'm experiencing huge amounts of lag in SQL Spatial layers .... compared to
SDF layers, I've jsut added some code to populate a spatial index, does
mapguide make use of such beasts ... can I speed the process up anymore ....
select queries on these tables are completed in under a second, they are by
no means large datasets
I've put the following code in place to start producing spatial indexs on my
CREATE SPATIAL INDEX geomIndex ON " & schema & ftable & "(geomcol1) USING
GEOMETRY_GRID WITH (BOUNDING_BOX =(473358, 6945073, 553852, 7050461),GRIDS
=(LEVEL_1 = MEDIUM,LEVEL_2 = MEDIUM,LEVEL_3 = MEDIUM,LEVEL_4 =
MEDIUM),CELLS_PER_OBJECT = 16, PAD_INDEX = OFF, SORT_IN_TEMPDB =
OFF,DROP_EXISTING = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON)
Is there any other way of improving the speed of the sql spatial server
datastore ... (over a minute on rendering the layer isn't going to cut it)
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