diff options
Diffstat (limited to 'src/include/access/nbtree.h')
| -rw-r--r-- | src/include/access/nbtree.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/include/access/nbtree.h b/src/include/access/nbtree.h index 64c6982f50e..1a8b16d45e2 100644 --- a/src/include/access/nbtree.h +++ b/src/include/access/nbtree.h @@ -379,13 +379,15 @@ typedef struct xl_btree_vacuum typedef struct xl_btree_mark_page_halfdead { xl_btreetid target; /* deleted tuple id in parent page */ + + /* information needed to recreate the leaf page: */ BlockNumber leafblk; /* leaf block ultimately being deleted */ BlockNumber leftblk; /* leaf block's left sibling, if any */ BlockNumber rightblk; /* leaf block's right sibling */ - BlockNumber downlink; /* next child down in the branch */ + BlockNumber topparent; /* topmost internal page in the branch */ } xl_btree_mark_page_halfdead; -#define SizeOfBtreeMarkPageHalfDead (offsetof(xl_btree_mark_page_halfdead, downlink) + sizeof(BlockNumber)) +#define SizeOfBtreeMarkPageHalfDead (offsetof(xl_btree_mark_page_halfdead, topparent) + sizeof(BlockNumber)) /* * This is what we need to know about deletion of a btree page. Note we do @@ -406,7 +408,7 @@ typedef struct xl_btree_unlink_page BlockNumber leafblk; BlockNumber leafleftsib; BlockNumber leafrightsib; - BlockNumber downlink; /* next child down in the branch */ + BlockNumber topparent; /* next child down in the branch */ TransactionId btpo_xact; /* value of btpo.xact for use in recovery */ /* xl_btree_metadata FOLLOWS IF XLOG_BTREE_UNLINK_PAGE_META */ |