SERVER-64797 Use `WT_SESSION::timestamp_transaction_uint`

(cherry picked from commit f9bbbfb86db15ac7e4111890447dc46caf5fe4b4)

2 files changed, 4 insertions, 5 deletions

diff --git a/src/mongo/db/storage/wiredtiger/wiredtiger_begin_transaction_block.cpp b/src/mongo/db/storage/wiredtiger/wiredtiger_begin_transaction_block.cpp
index 2307cff038b..45acf82f307 100644
--- a/src/mongo/db/storage/wiredtiger/wiredtiger_begin_transaction_block.cpp
+++ b/src/mongo/db/storage/wiredtiger/wiredtiger_begin_transaction_block.cpp
@@ -91,9 +91,8 @@ WiredTigerBeginTxnBlock::~WiredTigerBeginTxnBlock() {
 
 Status WiredTigerBeginTxnBlock::setReadSnapshot(Timestamp readTimestamp) {
     invariant(_rollback);
-    std::string readTSConfigString = "read_timestamp={:x}"_format(readTimestamp.asULL());
-
-    return wtRCToStatus(_session->timestamp_transaction(_session, readTSConfigString.c_str()));
+    return wtRCToStatus(
+        _session->timestamp_transaction_uint(_session, WT_TS_TXN_TYPE_READ, readTimestamp.asULL()));
 }
 
 void WiredTigerBeginTxnBlock::done() {
diff --git a/src/mongo/db/storage/wiredtiger/wiredtiger_recovery_unit.cpp b/src/mongo/db/storage/wiredtiger/wiredtiger_recovery_unit.cpp
index 995f880921b..11fbd699c1c 100644
--- a/src/mongo/db/storage/wiredtiger/wiredtiger_recovery_unit.cpp
+++ b/src/mongo/db/storage/wiredtiger/wiredtiger_recovery_unit.cpp
@@ -797,8 +797,8 @@ Status WiredTigerRecoveryUnit::setTimestamp(Timestamp timestamp) {
         return Status::OK();
     }
 
-    const std::string conf = "commit_timestamp=" + unsignedHex(timestamp.asULL());
-    auto rc = session->timestamp_transaction(session, conf.c_str());
+    auto rc =
+        session->timestamp_transaction_uint(session, WT_TS_TXN_TYPE_COMMIT, timestamp.asULL());
     if (rc == 0) {
         _isTimestamped = true;
     }