"try to have as few indexes as possible and do your inserts inside
transactions in batches, rather than one-by-one as individual statements. "
That is the main problem. I use now few index as possible. Unfortunately the
one-by-one INSERT is nature of or system. To join (batch) inserts is require
spacial cache with inactivity timeout. But this timout are make more trouble
for our application. The flat file has same problem.
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