SPI_returntuple
Description
SPI_returntuple makes a copy of a row in the upper executor context, returning it in the form of a row typeDatum. The returned pointer need only be converted toDatum viaPointerGetDatum before returning.
Note that this should be used for functions that are declared to return composite types. It is not used for triggers; useSPI_copytuple for returning a modified row in a trigger.