Hello Group,
I've tried the VACUUM ANALYSE, that doesn't help
much, but VACUUM FULL improves Performance down
from about 40 secs to 8. I think in future I would
use the reltuples value from pg_class for the table.
Thanks a lot for your answers and a good Sunday,
Det
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
