centos man page for spi_copytuple

SPI_COPYTUPLE(3)					  PostgreSQL 9.2.7 Documentation					  SPI_COPYTUPLE(3)

NAME
       SPI_copytuple - make a copy of a row in the upper executor context

SYNOPSIS
       HeapTuple SPI_copytuple(HeapTuple row)

DESCRIPTION
       SPI_copytuple makes a copy of a row in the upper executor context. This is normally used to return a modified row from a trigger. In a
       function declared to return a composite type, use SPI_returntuple instead.

ARGUMENTS
       HeapTuple row
	   row to be copied

RETURN VALUE
       the copied row; NULL only if tuple is NULL

PostgreSQL 9.2.7						    2014-02-17							  SPI_COPYTUPLE(3)