diff options
Diffstat (limited to 'src/btree/bt_delete.c')
| -rw-r--r-- | src/btree/bt_delete.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/btree/bt_delete.c b/src/btree/bt_delete.c index 2b87f41c71d..ae184ec4de4 100644 --- a/src/btree/bt_delete.c +++ b/src/btree/bt_delete.c @@ -46,6 +46,13 @@ * stored in the WT_REF.page_del field, with the transaction ID, that way the * session unrolling the delete can find all of the WT_UPDATE structures that * require update. + * + * One final note: pages can also be marked deleted if emptied and evicted. In + * that case, the WT_REF state will be set to WT_REF_DELETED but there will not + * be any associated WT_REF.page_del field. These pages are always skipped + * during cursor traversal (the page could not have been evicted if there were + * updates that weren't globally visible), and if read is forced to instantiate + * such a page, it simply creates an empty page from scratch. */ /* |