Method __builtin.Sql.Result()->increment_index()
- Method
increment_index
 protectedintincrement_index(int|voidval)- Description
 Increment the index.
- Parameter 
val Value to increment the index with. Defaults to
1.- Returns
 Returns the new value of the index.
This is a helper function for implementations to update the index.
It is typically called from fetch_row().