File: innodb_stats.inc

package info (click to toggle)
mariadb-10.0 10.0.32-0%2Bdeb8u1
  • links: PTS, VCS
  • area: main
  • in suites: jessie
  • size: 476,064 kB
  • sloc: cpp: 1,400,131; ansic: 832,140; perl: 54,391; sh: 41,304; pascal: 32,365; yacc: 14,921; xml: 5,257; sql: 4,667; cs: 4,647; makefile: 4,555; ruby: 4,465; python: 2,292; lex: 1,427; java: 941; asm: 295; awk: 54; 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';