fieldnum
Name
fieldnum -- get field number by name
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.