diff options
| author | Luke Chen <luke.chen@mongodb.com> | 2021-11-01 17:42:35 +1100 |
|---|---|---|
| committer | Evergreen Agent <no-reply@evergreen.mongodb.com> | 2021-11-01 07:08:30 +0000 |
| commit | 7a2e23cfea4801e45e01ddfa2ca9fd905b4b8a73 (patch) | |
| tree | d526c9319195619be96fa64c9a9dcf2fb5fe792a | |
| parent | b5c7d4ea2fb8ce7318139806dc9a320cbbc3b419 (diff) | |
| download | mongo-7a2e23cfea4801e45e01ddfa2ca9fd905b4b8a73.tar.gz | |
Import wiredtiger: 6873ef7d0c3f3babc28cdc4a16cc302038e51334 from branch mongodb-master
ref: dfc1385ec8..6873ef7d0c
for: 5.2.0
WT-8065 Update documentation about cursor and prefix_key configuration
| -rw-r--r-- | src/third_party/wiredtiger/import.data | 2 | ||||
| -rw-r--r-- | src/third_party/wiredtiger/src/docs/cursor-ops.dox | 8 |
2 files changed, 9 insertions, 1 deletions
diff --git a/src/third_party/wiredtiger/import.data b/src/third_party/wiredtiger/import.data index 0381b75fc61..f95bcd13adf 100644 --- a/src/third_party/wiredtiger/import.data +++ b/src/third_party/wiredtiger/import.data @@ -2,5 +2,5 @@ "vendor": "wiredtiger", "github": "wiredtiger/wiredtiger.git", "branch": "mongodb-master", - "commit": "dfc1385ec8b2aa0d86dfe66890a7e3b95b729d43" + "commit": "6873ef7d0c3f3babc28cdc4a16cc302038e51334" } diff --git a/src/third_party/wiredtiger/src/docs/cursor-ops.dox b/src/third_party/wiredtiger/src/docs/cursor-ops.dox index 9618396a77c..c6d0d30b827 100644 --- a/src/third_party/wiredtiger/src/docs/cursor-ops.dox +++ b/src/third_party/wiredtiger/src/docs/cursor-ops.dox @@ -70,6 +70,14 @@ WT_CURSOR::search_near method: @snippet ex_cursor.c cursor search near +The WT_CURSOR::search_near method can also be used with a prefix key by +setting \c prefix_search=true in the cursor configuration options. This +optimization ensures that search_near only traverses the relevant key +range with the matching prefix. Limiting the key range that search_near +can traverse through is particularly useful when there are a larger number +of records present outside of the key range which are not visible to the +search_near caller. + Cursor positions do not survive transactions: cursors that are open during WT_SESSION::begin_transaction, WT_SESSION::commit_transaction or WT_SESSION::rollback_transaction will lose their position as if |