From a41312d5242f91f1ba80629ff3a317839080df33 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Thu, 19 Nov 2020 10:51:39 +0800
Subject: [PATCH] [TD-225]

---
 src/client/src/tscSql.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/client/src/tscSql.c b/src/client/src/tscSql.c
index ddff004f82..fa4dcd1a76 100644
--- a/src/client/src/tscSql.c
+++ b/src/client/src/tscSql.c
@@ -805,7 +805,7 @@ bool taos_is_null(TAOS_RES *res, int32_t row, int32_t col) {
     return true;
   }
 
-  return isNull(pSql->res.urow[col] + row * pInfo->field.bytes, pInfo->field.type);
+  return isNull(((char*) pSql->res.urow[col]) + row * pInfo->field.bytes, pInfo->field.type);
 }
 
 int taos_print_row(char *str, TAOS_ROW row, TAOS_FIELD *fields, int num_fields) {
-- 
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