From 6f1878b12adca9e4336be69c7a7f4a0e83a89de2 Mon Sep 17 00:00:00 2001
From: Alexey Milovidov <milovidov@clickhouse.com>
Date: Sun, 18 Sep 2022 01:17:22 +0200
Subject: [PATCH] Fix error

---
 .../AggregateFunctionCategoricalInformationValue.cpp           | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/AggregateFunctions/AggregateFunctionCategoricalInformationValue.cpp b/src/AggregateFunctions/AggregateFunctionCategoricalInformationValue.cpp
index fb03abe03fe..99ffc87e076 100644
--- a/src/AggregateFunctions/AggregateFunctionCategoricalInformationValue.cpp
+++ b/src/AggregateFunctions/AggregateFunctionCategoricalInformationValue.cpp
@@ -182,7 +182,8 @@ AggregateFunctionPtr createAggregateFunctionCategoricalIV(
 
 void registerAggregateFunctionCategoricalIV(AggregateFunctionFactory & factory)
 {
-    factory.registerFunction("categoricalInformationValue", createAggregateFunctionCategoricalIV);
+    AggregateFunctionProperties properties = { .returns_default_when_only_null = true };
+    factory.registerFunction("categoricalInformationValue", { createAggregateFunctionCategoricalIV, properties });
 }
 
 }