SPI_fnumber

Section: PostgreSQL 8.1.11 Documentation ()
Updated: 2008-01-03
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NAME

SPI_fnumber - determine the column number for the specified column name

 

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.


 

Index

NAME
SYNOPSIS
DESCRIPTION
ARGUMENTS
RETURN VALUE

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