descriptor_item_name ::= "type" | "length" | "octet_length" | "returned_length" | "returned_octet_length" | "precision" | "scale" | "datetime_interval_code" | "datetime_interval_precision" | "nullable" | "indicator" | "data" | "name" | "unnamed" | "collation_catalog" | "collation_schema" | "collation_name" | "character_set_catalog" | "character_set_schema" | "character_set_name"
This rule is called by