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-rw-r--r--src/backend/access/nbtree/nbtinsert.c12
-rw-r--r--src/backend/access/nbtree/nbtxlog.c8
2 files changed, 10 insertions, 10 deletions
diff --git a/src/backend/access/nbtree/nbtinsert.c b/src/backend/access/nbtree/nbtinsert.c
index d64cbd98223..ecee5ac7f66 100644
--- a/src/backend/access/nbtree/nbtinsert.c
+++ b/src/backend/access/nbtree/nbtinsert.c
@@ -1299,7 +1299,7 @@ _bt_split(Relation rel, Buffer buf, Buffer cbuf, OffsetNumber firstright,
lastrdata->data = (char *) newitem;
lastrdata->len = MAXALIGN(newitemsz);
- lastrdata->buffer = buf; /* backup block 1 */
+ lastrdata->buffer = buf; /* backup block 0 */
lastrdata->buffer_std = true;
}
@@ -1320,7 +1320,7 @@ _bt_split(Relation rel, Buffer buf, Buffer cbuf, OffsetNumber firstright,
item = (IndexTuple) PageGetItem(origpage, itemid);
lastrdata->data = (char *) item;
lastrdata->len = MAXALIGN(IndexTupleSize(item));
- lastrdata->buffer = buf; /* backup block 1 */
+ lastrdata->buffer = buf; /* backup block 0 */
lastrdata->buffer_std = true;
}
@@ -1333,11 +1333,11 @@ _bt_split(Relation rel, Buffer buf, Buffer cbuf, OffsetNumber firstright,
* Although we don't need to WAL-log anything on the left page, we
* still need XLogInsert to consider storing a full-page image of
* the left page, so make an empty entry referencing that buffer.
- * This also ensures that the left page is always backup block 1.
+ * This also ensures that the left page is always backup block 0.
*/
lastrdata->data = NULL;
lastrdata->len = 0;
- lastrdata->buffer = buf; /* backup block 1 */
+ lastrdata->buffer = buf; /* backup block 0 */
lastrdata->buffer_std = true;
}
@@ -1353,7 +1353,7 @@ _bt_split(Relation rel, Buffer buf, Buffer cbuf, OffsetNumber firstright,
cblkno = BufferGetBlockNumber(cbuf);
lastrdata->data = (char *) &cblkno;
lastrdata->len = sizeof(BlockNumber);
- lastrdata->buffer = cbuf; /* backup block 2 */
+ lastrdata->buffer = cbuf; /* backup block 1 */
lastrdata->buffer_std = true;
}
@@ -1386,7 +1386,7 @@ _bt_split(Relation rel, Buffer buf, Buffer cbuf, OffsetNumber firstright,
lastrdata->data = NULL;
lastrdata->len = 0;
- lastrdata->buffer = sbuf; /* bkp block 2 (leaf) or 3 (non-leaf) */
+ lastrdata->buffer = sbuf; /* bkp block 1 (leaf) or 2 (non-leaf) */
lastrdata->buffer_std = true;
}
diff --git a/src/backend/access/nbtree/nbtxlog.c b/src/backend/access/nbtree/nbtxlog.c
index 640639c175e..5f9fc49e78c 100644
--- a/src/backend/access/nbtree/nbtxlog.c
+++ b/src/backend/access/nbtree/nbtxlog.c
@@ -300,8 +300,8 @@ btree_xlog_split(bool onleft, bool isroot,
*/
if (!isleaf)
{
- if (record->xl_info & XLR_BKP_BLOCK(2))
- (void) RestoreBackupBlock(lsn, record, 2, false, false);
+ if (record->xl_info & XLR_BKP_BLOCK(1))
+ (void) RestoreBackupBlock(lsn, record, 1, false, false);
else
_bt_clear_incomplete_split(lsn, record, xlrec->node, cblkno);
}
@@ -439,10 +439,10 @@ btree_xlog_split(bool onleft, bool isroot,
if (xlrec->rnext != P_NONE)
{
/*
- * the backup block containing right sibling is 2 or 3, depending
+ * the backup block containing right sibling is 1 or 2, depending
* whether this was a leaf or internal page.
*/
- int rnext_index = isleaf ? 2 : 3;
+ int rnext_index = isleaf ? 1 : 2;
if (record->xl_info & XLR_BKP_BLOCK(rnext_index))
(void) RestoreBackupBlock(lsn, record, rnext_index, false, false);