diff options
Diffstat (limited to 'src/backend/access/nbtree/nbtxlog.c')
| -rw-r--r-- | src/backend/access/nbtree/nbtxlog.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/backend/access/nbtree/nbtxlog.c b/src/backend/access/nbtree/nbtxlog.c index 493931e1b83..87a8612c28c 100644 --- a/src/backend/access/nbtree/nbtxlog.c +++ b/src/backend/access/nbtree/nbtxlog.c @@ -704,7 +704,7 @@ btree_xlog_mark_page_halfdead(uint8 info, XLogReaderState *record) * target page or not (since it's surely empty). */ - /* parent page */ + /* to-be-deleted subtree's parent page */ if (XLogReadBufferForRedo(record, 1, &buffer) == BLK_NEEDS_REDO) { OffsetNumber poffset; @@ -749,8 +749,8 @@ btree_xlog_mark_page_halfdead(uint8 info, XLogReaderState *record) pageop->btpo_cycleid = 0; /* - * Construct a dummy hikey item that points to the next parent to be - * deleted (if any). + * Construct a dummy high key item that points to top parent page (value + * is InvalidBlockNumber when the top parent page is the leaf page itself) */ MemSet(&trunctuple, 0, sizeof(IndexTupleData)); trunctuple.t_info = sizeof(IndexTupleData); @@ -837,7 +837,7 @@ btree_xlog_unlink_page(uint8 info, XLogReaderState *record) /* * If we deleted a parent of the targeted leaf page, instead of the leaf * itself, update the leaf to point to the next remaining child in the - * branch. + * to-be-deleted subtree */ if (XLogRecHasBlockRef(record, 3)) { |