From: Peter van Dijk <peter.van.dijk@powerdns.com>
Date: Thu, 6 Apr 2023 10:19:59 +0000 (+0200)
Subject: lmdb indexops: avoid updating timestamp when there is no change
X-Git-Tag: auth-4.8.0-beta1~1^2~14
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=14b68fdb492bfcab47c786e56df511f7453e9b67;p=thirdparty%2Fpdns.git

lmdb indexops: avoid updating timestamp when there is no change
---

diff --git a/ext/lmdb-safe/lmdb-typed.hh b/ext/lmdb-safe/lmdb-typed.hh
index a0e2cefb0d..0e837a6091 100644
--- a/ext/lmdb-safe/lmdb-typed.hh
+++ b/ext/lmdb-safe/lmdb-typed.hh
@@ -162,7 +162,11 @@ struct LMDBIndexOps
     auto scombined = makeCombinedKey(keyConv(d_parent->getMember(t)), id);
     MDBInVal combined(scombined);
 
-    txn->put(d_idx, combined, empty, flags);
+    MDBOutVal currentvalue;
+
+    if (txn->get(d_idx, combined, currentvalue) == MDB_NOTFOUND) {
+      txn->put(d_idx, combined, empty, flags);
+    }
   }
 
   void del(MDBRWTransaction& txn, const Class& t, uint32_t id)