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Is query tracing on Postgresql possible? I am using 9.0 on windows with OLEDB interface.

Also, I need it to be in real-time, not buffered like it is by default...

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I assume you mean tracing the statements on the server side?

In that case, change the parameter log_min_duration to 0 in postgresql.conf.

You don't need to restart the server, just reload the configuration (pg_ctl reload)

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i found the config options and now I have the log - however - it is lagging behind i.e. isn't flushed regularly. is there any option to enable real-time log flushing so I can tail it?
Sorry, I don't know how to control this
On Second thought, you might be able to get something out of pg_catalog.pg_stat_activity, but it doesn't keep a history of statements, only the currently executed ones

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