Thanks for you answer. This is what I think (talking also about your other email). What I don't understand is why it is false by default. Maybe memory usage ? I don't know....I would like to turn on it on production but I'm a bit doubtful. Is there any trab ?
Bugs ? Just for completeness I'm using postgres.

Curious the fact that the validation query is not a prepared statement....but it should be performed rarely.

ste

Gamnacke wrote:
I can tell you that a modern database (Oracle 10) does not seem to do a good
job of caching the query. According to snapshots taken on our DB we get a
one-to-one correspondence between query execution and query parsing if we
turn off pooling. With pooling turned on, the query needs only be parsed
once.




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