Re: pg_catalog.pg_stat_activity and current_query - Mailing list pgsql-general

From Szymon Guz
Subject Re: pg_catalog.pg_stat_activity and current_query
Date
Msg-id AANLkTikS68KKJ6=R3DpAT6LP=G5t61_dZ9FTceNTxySZ@mail.gmail.com
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In response to pg_catalog.pg_stat_activity and current_query  (Alex <alexadri83@virgilio.it>)
List pgsql-general


On 1 March 2011 09:36, Alex <alexadri83@virgilio.it> wrote:
Good morning,

I'm trying to make a Postgre profiler reading
pg_catalog.pg_stat_activity.
But when I read that view... I always find my query.

Example:

ResultSet rs = st.executeQuery("SELECT query_start,current_query FROM
pg_catalog.pg_stat_activity where xact_start is not null");
while(rs.next()) {
 String sQuery = rs.getString("current_query");
 qStart = rs.getTimestamp("query_start");
 if(!qStart.equals(qStart_last)){
   display.append(sQuery+'\n');
   qStart_last=(Timestamp)qStart.clone();
 }
}

Always prints "SELECT query_start,current_query FROM
pg_catalog.pg_stat_activity where xact_start is not null" :)

I'd like to discard my query... any ideas?

Thanks


If you want just to get rid of you query, add this to your query:

and procpid <> pg_backend_pid()

so you will have something like this:

SELECT query_start,current_query FROM
pg_catalog.pg_stat_activity where xact_start is not null and procpid <> pg_backend_pid()

regards
Szymon 

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