[postgis-users] Loading Data / Refreshing every 5 minutes

[Chris Brisendine]

Every once and a while when a wms user (on Geoserver) goes to refresh 
the view (Latest Radar Image) they get a blank page, just catching it 
when there is no data in the table.
There is not any data verification on my end its just a simple 
conversion of a polygon to postgis for geoserver to use.  Do I need to 
worry about indexing and vacuuming since the data changes
so much? I am very new to pgsql and still trying to learn everything...