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-rw-r--r--src/backend/executor/nodeTidscan.c2
-rw-r--r--src/include/storage/itemptr.h8
2 files changed, 3 insertions, 7 deletions
diff --git a/src/backend/executor/nodeTidscan.c b/src/backend/executor/nodeTidscan.c
index 26041033529..d54fe3665f7 100644
--- a/src/backend/executor/nodeTidscan.c
+++ b/src/backend/executor/nodeTidscan.c
@@ -139,7 +139,7 @@ TidListCreate(TidScanState *tidstate)
continue;
itemarray = DatumGetArrayTypeP(arraydatum);
deconstruct_array(itemarray,
- TIDOID, SizeOfIptrData, false, 's',
+ TIDOID, sizeof(ItemPointerData), false, 's',
&ipdatums, &ipnulls, &ndatums);
if (numTids + ndatums > numAllocTids)
{
diff --git a/src/include/storage/itemptr.h b/src/include/storage/itemptr.h
index 7ec7ed30c97..0deab7a859f 100644
--- a/src/include/storage/itemptr.h
+++ b/src/include/storage/itemptr.h
@@ -30,9 +30,8 @@
* structure padding bytes. The struct is designed to be six bytes long
* (it contains three int16 fields) but a few compilers will pad it to
* eight bytes unless coerced. We apply appropriate persuasion where
- * possible, and to cope with unpersuadable compilers, we try to use
- * "SizeOfIptrData" rather than "sizeof(ItemPointerData)" when computing
- * on-disk sizes.
+ * possible. If your compiler can't be made to play along, you'll waste
+ * lots of space.
*/
typedef struct ItemPointerData
{
@@ -46,9 +45,6 @@ pg_attribute_aligned(2)
#endif
ItemPointerData;
-#define SizeOfIptrData \
- (offsetof(ItemPointerData, ip_posid) + sizeof(OffsetNumber))
-
typedef ItemPointerData *ItemPointer;
/* ----------------