Function ExecMaterializeSlot

src/include/executor/tuptable.h:444–448

ExecMaterializeSlot - force a slot into the "materialized" state. * * This causes the slot's tuple to be a local copy not dependent on any * external storage (i.e. pointing into a Buffer, or having allocations in * another memory context). * * A typical use for this operation is to prepare a computed tuple for being * stored on disk. The original data may or may not be virtual, but in any

 * case we need a private copy for heap_insert to scribble on.
 */
static inline void
ExecMaterializeSlot(TupleTableSlot *slot)
{
	slot->tts_ops->materialize(slot);
}

/*
 * ExecCopySlotHeapTuple - return HeapTuple allocated in caller's context