doc/database/db_locks.md

   1 Table locks
   2 ===========
   3
   4
   5 | Field | Description | Type | Null | Key | Default | Extra |
   6 | ----- | ----------- | ---- | ---- | --- | ------- | ----- |
   7 | id      | sequential ID                | int unsigned | NO | PRI | NULL                | auto_increment |
   8 | name    |                              | varchar(128) | NO |     |                     |                |
   9 | locked  |                              | boolean      | NO |     | 0                   |                |
  10 | pid     | Process ID                   | int unsigned | NO |     | 0                   |                |
  11 | expires | datetime of cache expiration | datetime     | NO |     | 0001-01-01 00:00:00 |                |
  12
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