The INFORMATION_SCHEMA COLUMN_PRIVILEGES Table The  COLUMNS_EXTENSIONS  table has these columns: The name of the catalog to which the table belongs. This value is always  def . The name of the schema (database) to which the table belongs. The name of the table. The name of the column. Column attributes defined for the primary storage engine. Reserved for future use. Column attributes defined for the secondary storage engine. Reserved for future use. The  COLUMN_PRIVILEGES  table provides information about column privileges. It takes its values from the mysql.columns_priv  system table. The  COLUMN_PRIVILEGES  table has these columns: The name of the account to which the privilege is granted, in  ’ user_name ’@’ host_name ’  format. The name of the catalog to which the table containing the column belongs. This value is always  def . The name of the schema (database) to which the table containing the column belongs. The name of the table containing the column. The name of the column. The privilege granted. The value can be any privilege that can be granted at the column level; see Section 13.7.1.6, “GRANT Statement” . Each row lists a single privilege, so there is one row per column privilege held by the grantee. 4785 • PRIVILEGE_TYPE • COLUMN_NAME • TABLE_NAME • TABLE_SCHEMA • TABLE_CATALOG • GRANTEE 26.3.10 The INFORMATION_SCHEMA COLUMN_PRIVILEGES Table • SECONDARY_ENGINE_ATTRIBUTE • ENGINE_ATTRIBUTE • COLUMN_NAME • TABLE_NAME • TABLE_SCHEMA • TABLE_CATALOG