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MySQL 5.5 Reference Manual :: 19 INFORMATION_SCHEMA Tables :: 19.8 The INFORMATION_SCHEMA COLUMN_PRIVILEGES Table
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19.8. The INFORMATION_SCHEMA COLUMN_PRIVILEGES Table

The COLUMN_PRIVILEGES table provides information about column privileges. This information comes from the mysql.columns_priv grant table.

INFORMATION_SCHEMA Name SHOW Name Remarks
GRANTEE   'user_name'@'host_name' value
TABLE_CATALOG   def
TABLE_SCHEMA    
TABLE_NAME    
COLUMN_NAME    
PRIVILEGE_TYPE    
IS_GRANTABLE    

Notes:

  • In the output from SHOW FULL COLUMNS, the privileges are all in one field and in lowercase, for example, select,insert,update,references. In COLUMN_PRIVILEGES, there is one privilege per row, in uppercase.

  • PRIVILEGE_TYPE can contain one (and only one) of these values: SELECT, INSERT, UPDATE, REFERENCES.

  • If the user has GRANT OPTION privilege, IS_GRANTABLE should be YES. Otherwise, IS_GRANTABLE should be NO. The output does not list GRANT OPTION as a separate privilege.

The following statements are not equivalent: 

SELECT ... FROM INFORMATION_SCHEMA.COLUMN_PRIVILEGES

SHOW GRANTS ...