Unsupported versions: 7.3 / 7.2 / 7.1

Historical version. PostgreSQL 7.1 has reached end of support. See the current manual.

fieldnum

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.

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