From c19535c24b8fe23712ac63f2c30ba554c627cb6f Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Wed, 29 Sep 2021 11:31:57 +0800
Subject: [PATCH] [TD-10445]<enhance>: convert JSON timestamp use strtoll
 instead strtod in cJSON lib to prevent inaccurate presicion issue

---
 src/client/src/tscParseOpenTSDB.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/client/src/tscParseOpenTSDB.c b/src/client/src/tscParseOpenTSDB.c
index 39301f1189..164e3affb2 100644
--- a/src/client/src/tscParseOpenTSDB.c
+++ b/src/client/src/tscParseOpenTSDB.c
@@ -492,7 +492,7 @@ static int32_t parseTimestampFromJSONObj(cJSON *root, int64_t *tsVal, SSmlLinesI
     return TSDB_CODE_TSC_INVALID_JSON;
   }
 
-  *tsVal = value->valueint;
+  *tsVal = strtoll(value->numberstring, NULL, 10);
   //if timestamp value is 0 use current system time
   if (*tsVal == 0) {
     *tsVal = taosGetTimestampNs();
@@ -540,7 +540,8 @@ static int32_t parseTimestampFromJSON(cJSON *root, TAOS_SML_KV **pTS, int *num_k
     if (timestamp->valueint == 0) {
       tsVal = taosGetTimestampNs();
     } else {
-      tsVal = convertTimePrecision(timestamp->valueint, TSDB_TIME_PRECISION_MICRO, TSDB_TIME_PRECISION_NANO);
+      tsVal = strtoll(timestamp->numberstring, NULL, 10);
+      tsVal = convertTimePrecision(tsVal, TSDB_TIME_PRECISION_MICRO, TSDB_TIME_PRECISION_NANO);
     }
   } else if (cJSON_IsObject(timestamp)) {
     int32_t ret = parseTimestampFromJSONObj(timestamp, &tsVal, info);
-- 
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