File: innodb_stats.inc

package info (click to toggle)
mariadb-10.1 10.1.45-0%2Bdeb9u1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 476,916 kB
  • sloc: cpp: 1,124,656; ansic: 871,843; perl: 52,917; sh: 40,078; pascal: 35,370; javascript: 15,555; yacc: 14,728; ruby: 8,684; xml: 5,377; sql: 3,490; makefile: 2,934; python: 1,970; java: 1,691; asm: 837; lex: 757; php: 22; sed: 16
file content (26 lines) | stat: -rw-r--r-- 665 bytes parent folder | download | duplicates (13)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
TRUNCATE TABLE test_innodb_stats;

-- eval $insert

ANALYZE TABLE test_innodb_stats;

query_vertical SELECT
stat_name,
stat_value,
sample_size,
stat_description
FROM mysql.innodb_index_stats
WHERE
database_name = DATABASE() AND
table_name = 'test_innodb_stats' AND
index_name = 'a_key' AND
stat_name IN ('n_diff_pfx01', 'n_diff_pfx02', 'n_leaf_pages', 'size')
ORDER BY stat_name;

# provoke reading from persistent storage upon next table access (the SELECT
# from information_schema.statistics below)
FLUSH TABLE test_innodb_stats;

# see what we are going to read
query_vertical SELECT * FROM information_schema.statistics
WHERE table_name = 'test_innodb_stats';