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-rw-r--r--src/include/access/multixact.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/access/multixact.h b/src/include/access/multixact.h
index c86aeee44ef..a96e6531ef8 100644
--- a/src/include/access/multixact.h
+++ b/src/include/access/multixact.h
@@ -15,6 +15,7 @@
#define InvalidMultiXactId ((MultiXactId) 0)
#define FirstMultiXactId ((MultiXactId) 1)
+#define MaxMultiXactId ((MultiXactId) 0xFFFFFFFF)
#define MultiXactIdIsValid(multi) ((multi) != InvalidMultiXactId)