Manual:External user table/zh

external_user表追踪外部用户账户，如果使用了的话.

该表在 54900中连同外部验证功能被移除. 应该改用.

eu_local_id
的外键

eu_external_id
Some opaque identifier provided by the external database

架构摘要
++--+--+-+-+---+ ++--+--+-+-+---+ ++--+--+-+-+---+
 * Field         | Type             | Null | Key | Default | Extra |
 * eu_local_id   | int(10) unsigned | NO   | PRI | NULL    |       |
 * eu_external_id | varbinary(255)  | NO   | UNI | NULL    |       |

索引
 +---+++--++---+-+--++--++-+---+ +---+++--++---+-+--++--++-+---+ +---+++--++---+-+--++--++-+---+
 * Table        | Non_unique | Key_name       | Seq_in_index | Column_name    | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |
 * external_user |         0 | PRIMARY        |            1 | eu_local_id    | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |
 * external_user |         0 | eu_external_id |            1 | eu_external_id | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |