doc/database/db_challenge.md

   1 Table challenge
   2 ===============
   3
   4 | Field       | Description      | Type             | Null | Key | Default | Extra          |
   5 |-------------|------------------|------------------|------|-----|---------|----------------|
   6 | id          | sequential ID    | int(10) unsigned | NO   | PRI | NULL    | auto_increment |
   7 | challenge   |                  | varchar(255)     | NO   |     |         |                |
   8 | dfrn-id     |                  | varchar(255)     | NO   |     |         |                |
   9 | expire      |                  | int(11)          | NO   |     | 0       |                |
  10 | type        |                  | varchar(255)     | NO   |     |         |                |
  11 | last_update |                  | varchar(255)     | NO   |     |         |                |
  12
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