pg_field_prtlen Returns the printed length intpg_field_prtlen resourceresult introw_number stringfield_name pg_field_prtlen returns the actual printed length (number of characters) of a specific value in a PostgreSQL result. Row numbering starts at 0. This function will return -1 on an error. This function used to be called pg_field_prtlen(). See also pg_field_size.