# SQLの実行時間は以下のどれが正しいのでしょうか？

以下の3つでそれぞれ速度値が異なる。どれが正しいのでしょうか？
- 158.8ms `performance_schema.events_statements_summary_by_digest`
- 191ms コンソール出力
- 141.7ms スロークエリーのログ

## performance_schema.events_statements_summary_by_digest

SELECT
     DIGEST_TEXT,
     COUNT_STAR,
     MIN_TIMER_WAIT,
     AVG_TIMER_WAIT,
     MAX_TIMER_WAIT
 FROM 
     performance_schema.events_statements_summary_by_digest;

| DIGEST_TEXT | COUNT_STAR | MIN_TIMER_WAIT|AVG_TIMER_WAIT|MAX_TIMER_WAIT
| -------- | -------- | -------- | -------- | --------
|SELECT * FROM `salaries` | 1 |15886781000 |15886781000 |15886781000

## コンソール出力

employees> SELECT * FROM salaries
 [2021-03-02 21:46:39] 500 rows retrieved starting from 1 in 191 ms (execution: 28 ms, fetching: 163 ms)

## スロークエリーのログ

 # Time: 2021-03-02T12:46:39.054380Z
 # User@Host: root[root] @  [172.17.0.1]  Id:     2
 # Query_time: 0.014172  Lock_time: 0.012786 Rows_sent: 501  Rows_examined: 501
 use employees;
 SET timestamp=1614689199;
 /* ApplicationName=IntelliJ IDEA 2020.3.2 */ SELECT * FROM salaries;