From 754ca1fa4608cc5a8574712735b3c03d6d4fadc2 Mon Sep 17 00:00:00 2001
From: morrySnow <101034200+morrySnow@users.noreply.github.com>
Date: Thu, 16 Nov 2023 14:08:38 +0800
Subject: [PATCH] [fix](Nereids) nested type coercion should not process struct
 (#27068)

---
 .../trees/expressions/functions/ComputeSignatureHelper.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/ComputeSignatureHelper.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/ComputeSignatureHelper.java
index 3f4ff6ab76..038bf0064e 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/ComputeSignatureHelper.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/ComputeSignatureHelper.java
@@ -393,6 +393,9 @@ public class ComputeSignatureHelper {
                 }
             }
         }
+        if (finalType == null) {
+            return signature;
+        }
         DateTimeV2Type argType = finalType;
         List<DataType> newArgTypes = signature.argumentsTypes.stream()
                 .map(at -> TypeCoercionUtils.replaceDateTimeV2WithTarget(at, argType))
@@ -440,6 +443,9 @@ public class ComputeSignatureHelper {
             }
         }
         DecimalV3Type argType = finalType;
+        if (finalType == null) {
+            return signature;
+        }
         List<DataType> newArgTypes = signature.argumentsTypes.stream()
                 .map(at -> TypeCoercionUtils.replaceDecimalV3WithTarget(at, argType))
                 .collect(Collectors.toList());