statements_with_full_table_scans

Overview

In 10.6 ES, 10.6 CS:

A description for this sys Table has not yet been added to this Documentation.

In 10.5 ES, 10.5 CS, 10.4 ES, 10.4 CS, 10.3 ES, 10.3 CS, 10.2 ES, 10.2 CS:

Not present

See also: Sys Database Tables for MariaDB Enterprise Server 10.6 and in 10.6 CS

DETAILS

SCHEMA

VIEW `statements_with_full_table_scans` AS SELECT
  `sys`.`format_statement`(`performance_schema`.`events_statements_summary_by_digest`.`DIGEST_TEXT`) AS `query`,
  `performance_schema`.`events_statements_summary_by_digest`.`SCHEMA_NAME` AS `db`,
  `performance_schema`.`events_statements_summary_by_digest`.`COUNT_STAR` AS `exec_count`,
  `sys`.`format_time`(`performance_schema`.`events_statements_summary_by_digest`.`SUM_TIMER_WAIT`) AS `total_latency`,
  `performance_schema`.`events_statements_summary_by_digest`.`SUM_NO_INDEX_USED` AS `no_index_used_count`,
  `performance_schema`.`events_statements_summary_by_digest`.`SUM_NO_GOOD_INDEX_USED` AS `no_good_index_used_count`,
  round(ifnull(`performance_schema`.`events_statements_summary_by_digest`.`SUM_NO_INDEX_USED` / nullif(`performance_schema`.`events_statements_summary_by_digest`.`COUNT_STAR`,0),0) * 100,0) AS `no_index_used_pct`,
  `performance_schema`.`events_statements_summary_by_digest`.`SUM_ROWS_SENT` AS `rows_sent`,
  `performance_schema`.`events_statements_summary_by_digest`.`SUM_ROWS_EXAMINED` AS `rows_examined`,
  round(`performance_schema`.`events_statements_summary_by_digest`.`SUM_ROWS_SENT` / `performance_schema`.`events_statements_summary_by_digest`.`COUNT_STAR`,0) AS `rows_sent_avg`,
  round(`performance_schema`.`events_statements_summary_by_digest`.`SUM_ROWS_EXAMINED` / `performance_schema`.`events_statements_summary_by_digest`.`COUNT_STAR`,0) AS `rows_examined_avg`,
  `performance_schema`.`events_statements_summary_by_digest`.`FIRST_SEEN` AS `first_seen`,
  `performance_schema`.`events_statements_summary_by_digest`.`LAST_SEEN` AS `last_seen`,
  `performance_schema`.`events_statements_summary_by_digest`.`DIGEST` AS `digest`
FROM `performance_schema`.`events_statements_summary_by_digest` where (`performance_schema`.`events_statements_summary_by_digest`.`SUM_NO_INDEX_USED` > 0 or `performance_schema`.`events_statements_summary_by_digest`.`SUM_NO_GOOD_INDEX_USED` > 0) and `performance_schema`.`events_statements_summary_by_digest`.`DIGEST_TEXT`  not like 'SHOW%' order by round(ifnull(`performance_schema`.`events_statements_summary_by_digest`.`SUM_NO_INDEX_USED` / nullif(`performance_schema`.`events_statements_summary_by_digest`.`COUNT_STAR`,0),0) * 100,0) desc,`sys`.`format_time`(`performance_schema`.`events_statements_summary_by_digest`.`SUM_TIMER_WAIT`) desc

CHANGE HISTORY

Release Series

History

10.6 Enterprise

  • Added in MariaDB Enterprise Server 10.6.4-1.

10.6 Community

  • Added in MariaDB Community Server 10.6.0.

10.5 Enterprise

  • Not present.

10.5 Community

  • Not present.

10.4 Enterprise

  • Not present.

10.4 Community

  • Not present.

10.3 Enterprise

  • Not present.

10.3 Community

  • Not present.

10.2 Enterprise

  • Not present.

10.2 Community

  • Not present.

EXTERNAL REFERENCES