On Sat, Sep 11, 2021 at 1:12 AM Michel SALAIS <msalais@xxxxxxx> wrote: > > I thaught that total_time (total_exec_time + total_plan_time) included I/O but when we have blk_read_time + blk_write_time equals several times total_time it is difficult to continue to think that... Maybe not that difficult. If the queries use parallelism, the query total execution time may be say 1 second, but if there were X workers it could actually cumulate X+1 seconds of execution time, and therefore reach more than 1 second of cumulated read/write time.
