diff options
Diffstat (limited to 'src/backend/executor/execTuples.c')
| -rw-r--r-- | src/backend/executor/execTuples.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/src/backend/executor/execTuples.c b/src/backend/executor/execTuples.c index acd1b97b0e6..78cfcadea03 100644 --- a/src/backend/executor/execTuples.c +++ b/src/backend/executor/execTuples.c @@ -625,7 +625,15 @@ ExecCopySlotMinimalTuple(TupleTableSlot *slot) if (slot->tts_mintuple) return heap_copy_minimal_tuple(slot->tts_mintuple); if (slot->tts_tuple) - return minimal_tuple_from_heap_tuple(slot->tts_tuple); + { + if (TTS_HAS_PHYSICAL_TUPLE(slot) && + HeapTupleHeaderGetNatts(slot->tts_tuple->t_data) + < slot->tts_tupleDescriptor->natts) + return minimal_expand_tuple(slot->tts_tuple, + slot->tts_tupleDescriptor); + else + return minimal_tuple_from_heap_tuple(slot->tts_tuple); + } /* * Otherwise we need to build a tuple from the Datum array. @@ -663,7 +671,23 @@ ExecFetchSlotTuple(TupleTableSlot *slot) * If we have a regular physical tuple then just return it. */ if (TTS_HAS_PHYSICAL_TUPLE(slot)) - return slot->tts_tuple; + { + if (HeapTupleHeaderGetNatts(slot->tts_tuple->t_data) < + slot->tts_tupleDescriptor->natts) + { + MemoryContext oldContext = MemoryContextSwitchTo(slot->tts_mcxt); + + slot->tts_tuple = heap_expand_tuple(slot->tts_tuple, + slot->tts_tupleDescriptor); + slot->tts_shouldFree = true; + MemoryContextSwitchTo(oldContext); + return slot->tts_tuple; + } + else + { + return slot->tts_tuple; + } + } /* * Otherwise materialize the slot... |