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>SPI_returntuple</H1
><DIV
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><A
NAME="AEN51892"
></A
><H2
>Name</H2
>SPI_returntuple&nbsp;--&nbsp;prepare to return a tuple as a Datum</DIV
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><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>HeapTupleHeader SPI_returntuple(HeapTuple <TT
CLASS="PARAMETER"
>row</TT
>, TupleDesc <TT
CLASS="PARAMETER"
>rowdesc</TT
>)</PRE
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><H2
>Description</H2
><P
>   <CODE
CLASS="FUNCTION"
>SPI_returntuple</CODE
> makes a copy of a row in
   the upper executor context, returning it in the form of a row type <TT
CLASS="TYPE"
>Datum</TT
>.
   The returned pointer need only be converted to <TT
CLASS="TYPE"
>Datum</TT
> via <CODE
CLASS="FUNCTION"
>PointerGetDatum</CODE
>
   before returning.
  </P
><P
>   Note that this should be used for functions that are declared to return
   composite types.  It is not used for triggers; use
   <CODE
CLASS="FUNCTION"
>SPI_copytuple</CODE
> for returning a modified row in a trigger.
  </P
></DIV
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><A
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></A
><H2
>Arguments</H2
><P
></P
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><DL
><DT
><TT
CLASS="LITERAL"
>HeapTuple <TT
CLASS="PARAMETER"
>row</TT
></TT
></DT
><DD
><P
>      row to be copied
     </P
></DD
><DT
><TT
CLASS="LITERAL"
>TupleDesc <TT
CLASS="PARAMETER"
>rowdesc</TT
></TT
></DT
><DD
><P
>      descriptor for row (pass the same descriptor each time for most
      effective caching)
     </P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN51925"
></A
><H2
>Return Value</H2
><P
>   <TT
CLASS="TYPE"
>HeapTupleHeader</TT
> pointing to copied row;
   <TT
CLASS="SYMBOL"
>NULL</TT
> only if
   <TT
CLASS="PARAMETER"
>row</TT
> or <TT
CLASS="PARAMETER"
>rowdesc</TT
> is
   <TT
CLASS="SYMBOL"
>NULL</TT
>
  </P
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