Import wiredtiger: 45fd19bcb1007fd4e473d77ddd09d3157ff15c7e from branch mongodb-4.2

ref: 63b8cf2e0b..45fd19bcb1
for: 4.1.3

WT-3879       Disallow checkpoint from evicting metadata pages
WT-4090       Low priority reads
WT-4119       Avoid restarts updating / removing during a column store scan
WT-4131       Rename lookaside to cache overflow
WT-4154       Surface the oldest read timestamp
WT-4156       Add new wiredtiger_salvage top level API
WT-4177       Backup cursor open should force a log file switch
WT-4218       Change eviction to evict prepared updates
WT-4231       Fix ctags index of functions with attributes
WT-4246       Change transaction update list to support indirect references
WT-4259       Restore ref to the previous state rather than MEM when eviction fails
WT-4261       Test salvage of out-of-sync metadata/turtle files
WT-4267       fixed-length column store operations can corrupt data
WT-4268       Random abort should wait until record files exist before starting timer
WT-4270       Add an operation field to know where threads hang
WT-4272       Increase startup timeout to 30 seconds for slow I/O systems
WT-4274       Fix memory leak in wt4156_metadata_salvage test
WT-4277       Make truncate in column stores more efficient
WT-4281       Shorten runtime of Python test suite
WT-4282       Don't transition pages from limbo to mem unless required
WT-4283       Restore WT_ERROR and use a corrupt flag
WT-4284       Print a verbose message in recovery on error too
WT-4285       Fix wt4156_metadata_salvage Coverity/lint complaints
WT-4286       Column store should skip end-of-table checks if there's an exact match
WT-4288       Don't let return value of closing conn overwrite WT_TRY_SALVAGE
WT-4289       Update WT_DATA_CORRUPTION to WT_TRY_SALVAGE in test_txn19.py
WT-4291       Fix test_txn19.py error detection
WT-4292       Add call to testutil_cleanup to avoid memory leak
WT-4300       Setting the update timestamp can overwrite the WT_REF.addr field
WT-4301       WT_CURSOR.reserve operations can leak memory when committed
WT-4305       Add a gating variable for long running prepare support
WT-4306       Fix mode if metadata pages need eviction

1 files changed, 4 insertions, 0 deletions

diff --git a/src/third_party/wiredtiger/test/suite/test_timestamp09.py b/src/third_party/wiredtiger/test/suite/test_timestamp09.py
index 6fbb15e38b8..862fa31e681 100644
--- a/src/third_party/wiredtiger/test/suite/test_timestamp09.py
+++ b/src/third_party/wiredtiger/test/suite/test_timestamp09.py
@@ -184,6 +184,8 @@ class test_timestamp09(wttest.WiredTigerTestCase, suite_subprocess):
         self.assertEqual(c[6], 6)
         self.assertEqual(c[7], 7)
         self.assertEqual(c[8], 8)
+        self.assertTimestampsEqual(
+            self.conn.query_timestamp('get=oldest_reader'), timestamp_str(8))
         self.session.commit_transaction()
 
         # We can move the oldest timestamp backwards with "force"
@@ -194,6 +196,8 @@ class test_timestamp09(wttest.WiredTigerTestCase, suite_subprocess):
                 timestamp_str(4)),
                 '/older than oldest timestamp/')
         self.session.begin_transaction('read_timestamp=' + timestamp_str(6))
+        self.assertTimestampsEqual(
+            self.conn.query_timestamp('get=oldest_reader'), timestamp_str(6))
         self.session.commit_transaction()
 
 if __name__ == '__main__':