Hi,
I have some interesting question about PostgreSQL logging configuration.
I want log all 'mod' statements with their execution times and all
statements longer than 10ms (also with their execution times).
Now I have 3 setting to play with:
log_min_duration_statement
log_duration
log_statement
But it seems that I could not have configuration which doing what I looking for.
Because:
log_min_duration_statement=10ms
log_duration = off
log_statement = mod
will log almost everything what I need but db did not log execution
times for mod statements in that case.
Alternatively if I try:
log_min_duration_statement=10ms
log_duration = on
log_statement = mod
db will log execution times of every query (not only mod and ones
longer 10ms) thus producing lot noise and exceptionally large log
files.
I could not keep log_min_duration_statement=0 on database with 20000+
requests per second.
Is there any good solution for that task?
--
Maxim Boguk
Senior Postgresql DBA
http://www.postgresql-consulting.ru/
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Phone AU: +61 45 218 5678
Skype: maxim.boguk
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