SPI_copytuple (3) - Linux Manuals
SPI_copytuple: make a copy of a row in the upper executor context
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