DragonFly On-Line Manual Pages

SPI_GETVALUE(3)         PostgreSQL 9.5.0 Documentation         SPI_GETVALUE(3)

NAME
       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).

PostgreSQL 9.5.0                     2016                      SPI_GETVALUE(3)