This documentation is for an unsupported version of PostgreSQL.
You may want to view the same page for the
current
version, or one of the other supported versions listed above instead.
SPI_fnumber
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.