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table_lock_waits_summary_by_table

# Name Type Collation Attributes Null Default Comments Extra
1 varchar(64) utf8_general_ci Yes NULL Since this table records waits by table, always set to TABLE.
2 varchar(64) utf8_general_ci Yes NULL Schema name.
3 varchar(64) utf8_general_ci Yes NULL Table name.
4 bigint(20) UNSIGNED No None Number of summarized events and the sum of the x_READ and x_WRITE columns.
5 bigint(20) UNSIGNED No None Total wait time of the summarized events that are timed.
6 bigint(20) UNSIGNED No None Minimum wait time of the summarized events that are timed.
7 bigint(20) UNSIGNED No None Average wait time of the summarized events that are timed.
8 bigint(20) UNSIGNED No None Maximum wait time of the summarized events that are timed.
9 bigint(20) UNSIGNED No None Number of all read operations, and the sum of the equivalent x_READ_NORMAL, x_READ_WITH_SHARED_LOCKS, x_READ_HIGH_PRIORITY and x_READ_NO_INSERT columns.
10 bigint(20) UNSIGNED No None Total wait time of all read operations that are timed.
11 bigint(20) UNSIGNED No None Minimum wait time of all read operations that are timed.
12 bigint(20) UNSIGNED No None Average wait time of all read operations that are timed.
13 bigint(20) UNSIGNED No None Maximum wait time of all read operations that are timed.
14 bigint(20) UNSIGNED No None Number of all write operations, and the sum of the equivalent x_WRITE_ALLOW_WRITE, x_WRITE_CONCURRENT_INSERT, x_WRITE_DELAYED, x_WRITE_LOW_PRIORITY and x_WRITE_NORMAL columns.
15 bigint(20) UNSIGNED No None Total wait time of all write operations that are timed.
16 bigint(20) UNSIGNED No None Minimum wait time of all write operations that are timed.
17 bigint(20) UNSIGNED No None Average wait time of all write operations that are timed.
18 bigint(20) UNSIGNED No None Maximum wait time of all write operations that are timed.
19 bigint(20) UNSIGNED No None Number of all internal read normal locks.
20 bigint(20) UNSIGNED No None Total wait time of all internal read normal locks that are timed.
21 bigint(20) UNSIGNED No None Minimum wait time of all internal read normal locks that are timed.
22 bigint(20) UNSIGNED No None Average wait time of all internal read normal locks that are timed.
23 bigint(20) UNSIGNED No None Maximum wait time of all internal read normal locks that are timed.
24 bigint(20) UNSIGNED No None Number of all internal read with shared locks.
25 bigint(20) UNSIGNED No None Total wait time of all internal read with shared locks that are timed.
26 bigint(20) UNSIGNED No None Minimum wait time of all internal read with shared locks that are timed.
27 bigint(20) UNSIGNED No None Average wait time of all internal read with shared locks that are timed.
28 bigint(20) UNSIGNED No None Maximum wait time of all internal read with shared locks that are timed.
29 bigint(20) UNSIGNED No None Number of all internal read high priority locks.
30 bigint(20) UNSIGNED No None Total wait time of all internal read high priority locks that are timed.
31 bigint(20) UNSIGNED No None Minimum wait time of all internal read high priority locks that are timed.
32 bigint(20) UNSIGNED No None Average wait time of all internal read high priority locks that are timed.
33 bigint(20) UNSIGNED No None Maximum wait time of all internal read high priority locks that are timed.
34 bigint(20) UNSIGNED No None Number of all internal read no insert locks.
35 bigint(20) UNSIGNED No None Total wait time of all internal read no insert locks that are timed.
36 bigint(20) UNSIGNED No None Minimum wait time of all internal read no insert locks that are timed.
37 bigint(20) UNSIGNED No None Average wait time of all internal read no insert locks that are timed.
38 bigint(20) UNSIGNED No None Maximum wait time of all internal read no insert locks that are timed.
39 bigint(20) UNSIGNED No None Number of all external read locks.
40 bigint(20) UNSIGNED No None Total wait time of all external read locks that are timed.
41 bigint(20) UNSIGNED No None Minimum wait time of all external read locks that are timed.
42 bigint(20) UNSIGNED No None Average wait time of all external read locks that are timed.
43 bigint(20) UNSIGNED No None Maximum wait time of all external read locks that are timed.
44 bigint(20) UNSIGNED No None Number of all internal read normal locks.
45 bigint(20) UNSIGNED No None Total wait time of all internal write allow write locks that are timed.
46 bigint(20) UNSIGNED No None Minimum wait time of all internal write allow write locks that are timed.
47 bigint(20) UNSIGNED No None Average wait time of all internal write allow write locks that are timed.
48 bigint(20) UNSIGNED No None Maximum wait time of all internal write allow write locks that are timed.
49 bigint(20) UNSIGNED No None Number of all internal concurrent insert write locks.
50 bigint(20) UNSIGNED No None Total wait time of all internal concurrent insert write locks that are timed.
51 bigint(20) UNSIGNED No None Minimum wait time of all internal concurrent insert write locks that are timed.
52 bigint(20) UNSIGNED No None Average wait time of all internal concurrent insert write locks that are timed.
53 bigint(20) UNSIGNED No None Maximum wait time of all internal concurrent insert write locks that are timed.
54 bigint(20) UNSIGNED No None Number of all internal write delayed locks.
55 bigint(20) UNSIGNED No None Total wait time of all internal write delayed locks that are timed.
56 bigint(20) UNSIGNED No None Minimum wait time of all internal write delayed locks that are timed.
57 bigint(20) UNSIGNED No None Average wait time of all internal write delayed locks that are timed.
58 bigint(20) UNSIGNED No None Maximum wait time of all internal write delayed locks that are timed.
59 bigint(20) UNSIGNED No None Number of all internal write low priority locks.
60 bigint(20) UNSIGNED No None Total wait time of all internal write low priority locks that are timed.
61 bigint(20) UNSIGNED No None Minimum wait time of all internal write low priority locks that are timed.
62 bigint(20) UNSIGNED No None Average wait time of all internal write low priority locks that are timed.
63 bigint(20) UNSIGNED No None Maximum wait time of all internal write low priority locks that are timed.
64 bigint(20) UNSIGNED No None Number of all internal write normal locks.
65 bigint(20) UNSIGNED No None Total wait time of all internal write normal locks that are timed.
66 bigint(20) UNSIGNED No None Minimum wait time of all internal write normal locks that are timed.
67 bigint(20) UNSIGNED No None Average wait time of all internal write normal locks that are timed.
68 bigint(20) UNSIGNED No None Maximum wait time of all internal write normal locks that are timed.
69 bigint(20) UNSIGNED No None Number of all external write locks.
70 bigint(20) UNSIGNED No None Total wait time of all external write locks that are timed.
71 bigint(20) UNSIGNED No None Minimum wait time of all external write locks that are timed.
72 bigint(20) UNSIGNED No None Average wait time of all external write locks that are timed.
73 bigint(20) UNSIGNED No None Maximum wait time of all external write locks that are timed.
With selected: With selected:

Partitions Documentation
Information
Row statistics
Format dynamic
Collation utf8_general_ci
Rows 1,000
Row size 0 B
Next autoindex 0
Creation Jun 06, 2025 at 03:06 AM
Last update Jun 06, 2025 at 03:06 AM
Last check Jun 06, 2025 at 03:06 AM