From 169d0ee13cd6451a11de9984707ea3b47e4f591a Mon Sep 17 00:00:00 2001
From: slzhou <shenglian_zhou@163.com>
Date: Tue, 28 Mar 2023 11:18:14 +0800
Subject: [PATCH] fix: scalar return and log error of udf execution

---
 source/libs/function/src/tudf.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/source/libs/function/src/tudf.c b/source/libs/function/src/tudf.c
index 611344063b..fad118297e 100644
--- a/source/libs/function/src/tudf.c
+++ b/source/libs/function/src/tudf.c
@@ -1070,8 +1070,15 @@ int32_t callUdfScalarFunc(char *udfName, SScalarParam *input, int32_t numOfCols,
   if (code != 0) {
     return code;
   }
+
   SUdfcUvSession *session = handle;
   code = doCallUdfScalarFunc(handle, input, numOfCols, output);
+  if (code != TSDB_CODE_SUCCESS) {
+    fnError("udfc scalar function execution failure");
+    releaseUdfFuncHandle(udfName);
+    return code;
+  }
+
   if (output->columnData == NULL) {
     fnError("udfc scalar function calculate error. no column data");
     code = TSDB_CODE_UDF_INVALID_OUTPUT_TYPE;