Hi, This is the expected behavior, like that sql statements with différent values are shared in pg_stat_statements ... There is no parameter to change this, if you really want query paramèters you néed to have a look at statements logging, but be carrefull this can generate a huge volume of log files depending on your workload ... See log_statements at https://www.postgresql.org/docs/9.5/static/runtime-config-logging.html Regards PAscal -- Sent from: http://www.postgresql-archive.org/PostgreSQL-general-f1843780.html