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-rw-r--r--src/backend/executor/nodeMergeAppend.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/backend/executor/nodeMergeAppend.c b/src/backend/executor/nodeMergeAppend.c
index 43059664b93..fa0ecc81769 100644
--- a/src/backend/executor/nodeMergeAppend.c
+++ b/src/backend/executor/nodeMergeAppend.c
@@ -42,6 +42,7 @@
#include "executor/execdebug.h"
#include "executor/nodeMergeAppend.h"
#include "utils/lsyscache.h"
+#include "utils/rel.h"
/*
* It gets quite confusing having a heap array (indexed by integers) which