Table 12.28 Internal Functions内部功能
| Name | Description | Introduced |
|---|---|---|
CAN_ACCESS_COLUMN() | ||
CAN_ACCESS_DATABASE() | ||
CAN_ACCESS_TABLE() | ||
CAN_ACCESS_USER() | 8.0.22 | |
CAN_ACCESS_VIEW() | ||
GET_DD_COLUMN_PRIVILEGES() | ||
GET_DD_CREATE_OPTIONS() | ||
GET_DD_INDEX_SUB_PART_LENGTH() | ||
INTERNAL_AUTO_INCREMENT() | ||
INTERNAL_AVG_ROW_LENGTH() | ||
INTERNAL_CHECK_TIME() | ||
INTERNAL_CHECKSUM() | ||
INTERNAL_DATA_FREE() | ||
INTERNAL_DATA_LENGTH() | ||
INTERNAL_DD_CHAR_LENGTH() | ||
INTERNAL_GET_COMMENT_OR_ERROR() | ||
INTERNAL_GET_ENABLED_ROLE_JSON() | 8.0.19 | |
INTERNAL_GET_HOSTNAME() | 8.0.19 | |
INTERNAL_GET_USERNAME() | 8.0.19 | |
INTERNAL_GET_VIEW_WARNING_OR_ERROR() | ||
INTERNAL_INDEX_COLUMN_CARDINALITY() | ||
INTERNAL_INDEX_LENGTH() | ||
INTERNAL_IS_ENABLED_ROLE() | 8.0.19 | |
INTERNAL_IS_MANDATORY_ROLE() | 8.0.19 | |
INTERNAL_KEYS_DISABLED() | ||
INTERNAL_MAX_DATA_LENGTH() | ||
INTERNAL_TABLE_ROWS() | ||
INTERNAL_UPDATE_TIME() |
The functions listed in this section are intended only for internal use by the server. 本节中列出的功能仅供服务器内部使用。Attempts by users to invoke them result in an error.用户试图调用它们会导致错误。