diff options
Diffstat (limited to 'src/backend/executor/execTuples.c')
| -rw-r--r-- | src/backend/executor/execTuples.c | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/src/backend/executor/execTuples.c b/src/backend/executor/execTuples.c index 3b13e5be7eb..6aab933fbc0 100644 --- a/src/backend/executor/execTuples.c +++ b/src/backend/executor/execTuples.c @@ -88,7 +88,6 @@ #include "nodes/nodeFuncs.h" #include "storage/bufmgr.h" #include "utils/builtins.h" -#include "utils/expandeddatum.h" #include "utils/lsyscache.h" #include "utils/typcache.h" @@ -813,52 +812,6 @@ ExecCopySlot(TupleTableSlot *dstslot, TupleTableSlot *srcslot) return ExecStoreTuple(newTuple, dstslot, InvalidBuffer, true); } -/* -------------------------------- - * ExecMakeSlotContentsReadOnly - * Mark any R/W expanded datums in the slot as read-only. - * - * This is needed when a slot that might contain R/W datum references is to be - * used as input for general expression evaluation. Since the expression(s) - * might contain more than one Var referencing the same R/W datum, we could - * get wrong answers if functions acting on those Vars thought they could - * modify the expanded value in-place. - * - * For notational reasons, we return the same slot passed in. - * -------------------------------- - */ -TupleTableSlot * -ExecMakeSlotContentsReadOnly(TupleTableSlot *slot) -{ - /* - * sanity checks - */ - Assert(slot != NULL); - Assert(slot->tts_tupleDescriptor != NULL); - Assert(!slot->tts_isempty); - - /* - * If the slot contains a physical tuple, it can't contain any expanded - * datums, because we flatten those when making a physical tuple. This - * might change later; but for now, we need do nothing unless the slot is - * virtual. - */ - if (slot->tts_tuple == NULL) - { - Form_pg_attribute *att = slot->tts_tupleDescriptor->attrs; - int attnum; - - for (attnum = 0; attnum < slot->tts_nvalid; attnum++) - { - slot->tts_values[attnum] = - MakeExpandedObjectReadOnly(slot->tts_values[attnum], - slot->tts_isnull[attnum], - att[attnum]->attlen); - } - } - - return slot; -} - /* ---------------------------------------------------------------- * convenience initialization routines |