CentOS 7.0 - man page for spi_copytuple (centos section 3)

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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)
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