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YZWL/IDEA/sys/statements_with_sorting.sql

23 lines
2.4 KiB

create definer = `mysql.sys`@localhost view sys.statements_with_sorting 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`,
format_pico_time(`performance_schema`.`events_statements_summary_by_digest`.`SUM_TIMER_WAIT`) AS `total_latency`,
`performance_schema`.`events_statements_summary_by_digest`.`SUM_SORT_MERGE_PASSES` AS `sort_merge_passes`,
round(ifnull((`performance_schema`.`events_statements_summary_by_digest`.`SUM_SORT_MERGE_PASSES` /
nullif(`performance_schema`.`events_statements_summary_by_digest`.`COUNT_STAR`, 0)), 0),
0) AS `avg_sort_merges`,
`performance_schema`.`events_statements_summary_by_digest`.`SUM_SORT_SCAN` AS `sorts_using_scans`,
`performance_schema`.`events_statements_summary_by_digest`.`SUM_SORT_RANGE` AS `sort_using_range`,
`performance_schema`.`events_statements_summary_by_digest`.`SUM_SORT_ROWS` AS `rows_sorted`,
round(ifnull((`performance_schema`.`events_statements_summary_by_digest`.`SUM_SORT_ROWS` /
nullif(`performance_schema`.`events_statements_summary_by_digest`.`COUNT_STAR`, 0)), 0),
0) AS `avg_rows_sorted`,
`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_SORT_ROWS` > 0)
order by `performance_schema`.`events_statements_summary_by_digest`.`SUM_TIMER_WAIT` desc;