'\" t
.\"     Title: SPI_copytuple
.\"    Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 2024
.\"    Manual: PostgreSQL 16.2 Documentation
.\"    Source: PostgreSQL 16.2
.\"  Language: English
.\"
.TH "SPI_COPYTUPLE" "3" "2024" "PostgreSQL 16.2" "PostgreSQL 16.2 Documentation"
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.SH "NAME"
SPI_copytuple \- make a copy of a row in the upper executor context
.SH "SYNOPSIS"
.sp
.nf
HeapTuple SPI_copytuple(HeapTuple \fIrow\fR)
.fi
.SH "DESCRIPTION"
.PP
\fBSPI_copytuple\fR
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
\fBSPI_returntuple\fR
instead\&.
.PP
This function can only be used while connected to SPI\&. Otherwise, it returns NULL and sets
\fISPI_result\fR
to
SPI_ERROR_UNCONNECTED\&.
.SH "ARGUMENTS"
.PP
HeapTuple \fIrow\fR
.RS 4
row to be copied
.RE
.SH "RETURN VALUE"
.PP
the copied row, or
NULL
on error (see
\fISPI_result\fR
for an error indication)