
SPI\_getvalue — return the string value of the specified column

## Synopsis

char \* SPI\_getvalue(HeapTuple _`row`_, TupleDesc _`rowdesc`_, int _`colnumber`_)

## Description

`SPI_getvalue` returns the string representation of the value of the specified column.

The result is returned in memory allocated using `palloc`. (You can use `pfree` to release the memory when you don't need it anymore.)

## Arguments

``HeapTuple _`row`_``

input row to be examined

``TupleDesc _`rowdesc`_``

input row description

``int _`colnumber`_``

column number (count starts at 1)

## Return Value

Column value, or `NULL` if the column is null, _`colnumber`_ is out of range (`SPI_result` is set to `SPI_ERROR_NOATTRIBUTE`), or no output function is available (`SPI_result` is set to `SPI_ERROR_NOOUTFUNC`).
