COLUMNS_EXTENSIONS table provides
information about column attributes defined for primary and
secondary storage engines.
COLUMNS_EXTENSIONS table is
reserved for future use.
COLUMNS_EXTENSIONS table has
The name of the catalog to which the table belongs. This value is always
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.