Name
fieldnum -- field name-number conversion
Synopsis
fieldnum(name)
Parameters
- name
field name (string).
Return Type
- integer
field number (integer).
Exceptions
- TypeError
Bad parameter type, or too many arguments.
- ValueError
Unknown field name.
- pg.error
Invalid query result, or invalid connection.
Description
fieldnum() method returns a field number from its name.
It can be used to build a function that converts result list strings to their correct
type, using a hardcoded table definition. The number returned is the
field rank in the result values list.