Documentation Home
MySQL 5.7 Reference Manual
Related Documentation Download this Manual
PDF (US Ltr) - 38.0Mb
PDF (A4) - 38.1Mb
PDF (RPM) - 37.4Mb
HTML Download (TGZ) - 10.2Mb
HTML Download (Zip) - 10.2Mb
HTML Download (RPM) - 8.9Mb
Man Pages (TGZ) - 216.6Kb
Man Pages (Zip) - 329.5Kb
Info (Gzip) - 3.5Mb
Info (Zip) - 3.5Mb
Excerpts from this Manual

MySQL 5.7 Reference Manual  /  ...  /  The user_summary_by_stages and x$user_summary_by_stages Views

26.4.3.44 The user_summary_by_stages and x$user_summary_by_stages Views

These views summarize stages, grouped by user. By default, rows are sorted by user and descending total stage latency.

The user_summary_by_stages and x$user_summary_by_stages views have these columns:

  • user

    The client user name. Rows for which the USER column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported with a host name of background.

  • event_name

    The stage event name.

  • total

    The total number of occurrences of the stage event for the user.

  • total_latency

    The total wait time of timed occurrences of the stage event for the user.

  • avg_latency

    The average wait time per timed occurrence of the stage event for the user.


User Comments
Sign Up Login You must be logged in to post a comment.