mariadb_stmt_fetch_fields returns an array of MYSQL_FIELD descriptors for each result set column of a prepared statement, added in MariaDB Connector/C 3.1.0.
stmt - A statement handle, which was previously allocated by mysql_stmt_init().
Description
Returns an array of fields. Each field contains the definition for a column of the result set.
If the statement doesn't have a result set a NULL pointer will be returned.