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MDEV-23729 MDEV-32218 INFORMATION_SCHEMA table for user data

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* A new table INFORMATION_SCHEMA.USERS is introduced.
* It stores auxiliary user data
* An unprivileged user can access their own data, and that is the main
  difference with what mysql.global_priv provides
* The fields are currently: USER, PASSWORD_ERRORS, PASSWORD_EXPIRATION_TIME
* If password_errors is ignored for the user, PASSWORD_ERRORS is NULL
* PASSWORD_EXPIRATION_TIME is a timestamp with exact point in time, calculated
from password_last_changed and password_lifetime (i.e. days) stored for the user
This commit is contained in:
Nikita Malyavin
2024-02-29 16:49:18 +01:00
parent bec1f32103
commit d229b4af0e
6 changed files with 263 additions and 0 deletions
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sql/handler.h
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@ -1110,6 +1110,7 @@ enum enum_schema_tables
SCH_TABLE_NAMES,
SCH_TABLE_PRIVILEGES,
SCH_TRIGGERS,
SCH_USERS,
SCH_USER_PRIVILEGES,
SCH_VIEWS,
SCH_ENUM_SIZE