From bfa6bc3b0a5a2f6f9b4e317a7c2642eaf7907fdf Mon Sep 17 00:00:00 2001
From: Pxl <952130278@qq.com>
Date: Fri, 24 Dec 2021 21:27:01 +0800
Subject: [PATCH] [fix](function) fix aggregate function min() at type varchar
 (#7437)

---
 be/src/olap/aggregate_func.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/be/src/olap/aggregate_func.h b/be/src/olap/aggregate_func.h
index a64ed14836..f1996330f1 100644
--- a/be/src/olap/aggregate_func.h
+++ b/be/src/olap/aggregate_func.h
@@ -235,6 +235,7 @@ struct AggregateFuncTraits<OLAP_FIELD_AGGREGATION_MIN, OLAP_FIELD_TYPE_VARCHAR>
                 memory_copy(dst_slice->data, src_slice->data, src_slice->size);
                 dst_slice->size = src_slice->size;
             }
+            dst->set_is_null(false);
         }
     }
 };