Manual Reference Pages  - SPI_fnumber ()

NAME

SPI_fnumber - determine the column number for the specified column name

CONTENTS

Synopsis

SYNOPSIS

int SPI_fnumber(TupleDesc rowdesc, const char * colname)

DESCRIPTION

SPI_fnumber returns the column number for the column with the specified name.

If colname refers to a system column (e.g., oid) then the appropriate negative column number will be returned. The caller should be careful to test the return value for exact equality to SPI_ERROR_NOATTRIBUTE to detect an error; testing the result for less than or equal to 0 is not correct unless system columns should be rejected.

ARGUMENTS

TupleDesc rowdesc
  input row description
const char * colname
  column name

RETURN VALUE

Column number (count starts at 1), or SPI_ERROR_NOATTRIBUTE if the named column was not found.


SPI_fnumber () 2010-12-14
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