centos man page for spi_gettype

SPI_GETTYPE(3)						  PostgreSQL 9.2.7 Documentation					    SPI_GETTYPE(3)

NAME
       SPI_gettype - return the data type name of the specified column

SYNOPSIS
       char * SPI_gettype(TupleDesc rowdesc, int colnumber)

DESCRIPTION
       SPI_gettype returns a copy of the data type name of the specified column. (You can use pfree to release the copy of the name when you don't
       need it anymore.)

ARGUMENTS
       TupleDesc rowdesc
	   input row description

       int colnumber
	   column number (count starts at 1)

RETURN VALUE
       The data type name of the specified column, or NULL on error.  SPI_result is set to SPI_ERROR_NOATTRIBUTE on error.

PostgreSQL 9.2.7						    2014-02-17							    SPI_GETTYPE(3)