SPI_returntuple

Nome

SPI_returntuple -- prepare to return a tuple as a Datum

Sinopse

HeapTupleHeader SPI_returntuple(HeapTuple row, TupleDesc rowdesc)

Descrição

SPI_returntuple makes a copy of a row in the upper executor context, returning it in the form of a row type Datum. The returned pointer need only be converted to Datum via PointerGetDatum before returning.

Note that this should be used for functions that are declared to return composite types. It is not used for triggers; use SPI_copytuple for returning a modified row in a trigger.

Argumentos

HeapTuple row

row to be copied

TupleDesc rowdesc

descriptor for row (pass the same descriptor each time for most effective caching)

Valor retornado

HeapTupleHeader pointing to copied row; NULL only if row or rowdesc is NULL

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