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Diffstat (limited to 'src/backend/replication/logical/snapbuild.c')
-rw-r--r--src/backend/replication/logical/snapbuild.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/backend/replication/logical/snapbuild.c b/src/backend/replication/logical/snapbuild.c
index 358ec289321..5d15e25fb5f 100644
--- a/src/backend/replication/logical/snapbuild.c
+++ b/src/backend/replication/logical/snapbuild.c
@@ -533,6 +533,18 @@ SnapBuildInitialSnapshot(SnapBuild *builder)
* mechanism. Due to that we can do this without locks, we're only
* changing our own value.
*/
+#ifdef USE_ASSERT_CHECKING
+ {
+ TransactionId safeXid;
+
+ LWLockAcquire(ProcArrayLock, LW_SHARED);
+ safeXid = GetOldestSafeDecodingTransactionId(true);
+ LWLockRelease(ProcArrayLock);
+
+ Assert(TransactionIdPrecedesOrEquals(safeXid, snap->xmin));
+ }
+#endif
+
MyPgXact->xmin = snap->xmin;
/* allocate in transaction context */