From 51d9d54ddcea0c364e97cdba357f345bb461792f Mon Sep 17 00:00:00 2001
From: freemine <freemine@yeah.net>
Date: Sun, 7 Jun 2020 11:00:22 +0800
Subject: [PATCH] allocate enough space to holding null-terminator, especially
 in case of wchar_t

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

diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 2bde10f076..caf424080d 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -1153,7 +1153,7 @@ SColumnFilterInfo* tscFilterInfoClone(const SColumnFilterInfo* src, int32_t numO
   for (int32_t j = 0; j < numOfFilters; ++j) {
     
     if (pFilter[j].filterstr) {
-      size_t len = (size_t) pFilter[j].len + 1;
+      size_t len = (size_t) pFilter[j].len + 1 * TSDB_NCHAR_SIZE;
       pFilter[j].pz = (int64_t) calloc(1, len);
       
       memcpy((char*)pFilter[j].pz, (char*)src[j].pz, (size_t)len);
-- 
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