title: Logging = ALL issue on PostgreSQL 9.5 on Ubuntu 16.04
body: <p>So I understand that ALL will get me the SELECTS which is what I would like to monitor for my application, however, the POSTGRES daemon is running a select of its own against the database and it is logging it...</p>
  
  <p>Does anyone know how to avoid this as my log will get filled rather quickly </p>
  
  <pre><code>LOG:  statement: SELECT
             (SELECT sum(xact_commit) + sum(xact_rollback) FROM pg_stat_database WHERE datname = (SELECT datname FROM pg_database WHERE oid = 16384)) AS "Transactions",
             (SELECT sum(xact_commit) FROM pg_stat_database WHERE datname = (SELECT datname FROM pg_database WHERE oid = 16384)) AS "Commits",
             (SELECT sum(xact_rollback) FROM pg_stat_database WHERE datname = (SELECT datname FROM pg_database WHERE oid = 16384)) AS "Rollbacks"
  2017-01-09 23:53:36 UTC [14264-16] evtofadmin@evtof LOG:  statement: SELECT
             (SELECT sum(xact_commit) + sum(xact_rollback) FROM pg_stat_database WHERE datname = (SELECT datname FROM pg_database WHERE oid = 16384)) AS "Transactions",
             (SELECT sum(xact_commit) FROM pg_stat_database WHERE datname = (SELECT datname FROM pg_database WHERE oid = 16384)) AS "Commits",
             (SELECT sum(xact_rollback) FROM pg_stat_database WHERE datname = (SELECT datname FROM pg_database WHERE oid = 16384)) AS "Rollbacks"
  2017-01-09 23:53:37 UTC [14264-17] evtofadmin@evtof LOG:  statement: SELECT
             (SELECT sum(xact_commit) + sum(xact_rollback) FROM pg_stat_database WHERE datname = (SELECT datname FROM pg_database WHERE oid = 16384)) AS "Transactions",
             (SELECT sum(xact_commit) FROM pg_stat_database WHERE datname = (SELECT datname FROM pg_database WHERE oid = 16384)) AS "Commits",
             (SELECT sum(xact_rollback) FROM pg_stat_database WHERE datname = (SELECT datname FROM pg_database WHERE oid = 16384)) AS "Rollbacks"
  2017-01-09 23:53:38 UTC [14264-18] evtofadmin@evtof LOG:  statement: SELECT
             (SELECT sum(xact_commit) + sum(xact_rollback) FROM pg_stat_database WHERE datname = (SELECT datname FROM pg_database WHERE oid = 16384)) AS "Transactions",
             (SELECT sum(xact_commit) FROM pg_stat_database WHERE datname = (SELECT datname FROM pg_database WHERE oid = 16384)) AS "Commits",
             (SELECT sum(xact_rollback) FROM pg_stat_database WHERE datname = (SELECT datname FROM pg_database WHERE oid = 16384)) AS "Rollbacks"
  2017-01-09 23:53:39 UTC [14264-19] evtofadmin@evtof LOG:  statement: SELECT
             (SELECT sum(xact_commit) + sum(xact_rollback) FROM pg_stat_database WHERE datname = (SELECT datname FROM pg_database WHERE oid = 16384)) AS "Transactions", ....
  ...
  ...
  </code></pre>