[TD-6443]<feature>: Support OpenTSDB HTTP JSON data import format

src/client/src/tscParseOpenTSDB.c

@@ -434,7 +434,7 @@ int32_t parseMetricFromJSON(cJSON *root, TAOS_SML_DATA_POINT* pSml, SSmlLinesInf
     return  TSDB_CODE_TSC_INVALID_JSON;
   }
 
-  uint64_t stableLen = strlen(metric->valuestring);
+  size_t stableLen = strlen(metric->valuestring);
   if (stableLen > TSDB_TABLE_NAME_LEN) {
       tscError("OTD:0x%"PRIx64" Metric cannot exceeds 193 characters in JSON", info->id);
       return TSDB_CODE_TSC_INVALID_TABLE_ID_LENGTH;
@@ -480,7 +480,7 @@ int32_t parseTimestampFromJSONObj(cJSON *root, int64_t *tsVal, SSmlLinesInfo* in
     return TSDB_CODE_SUCCESS;
   }
 
-  uint64_t typeLen = strlen(type->valuestring);
+  size_t typeLen = strlen(type->valuestring);
   if (typeLen == 1 && type->valuestring[0] == 's') {
     //seconds
     *tsVal = (int64_t)(*tsVal * 1e9);
@@ -786,8 +786,8 @@ int32_t parseTagsFromJSON(cJSON *root, TAOS_SML_KV **pKVs, int *num_kvs, char **
   //only pick up the first ID value as child table name
   cJSON *id = cJSON_GetObjectItem(tags, "ID");
   if (id != NULL) {
-    uint64_t idLen = strlen(id->valuestring);
-    ret = isValidChildTableName(id->valuestring, idLen);
+    size_t idLen = strlen(id->valuestring);
+    ret = isValidChildTableName(id->valuestring, (int16_t)idLen);
     if (ret != TSDB_CODE_SUCCESS) {
       return ret;
     }
@@ -816,7 +816,7 @@ int32_t parseTagsFromJSON(cJSON *root, TAOS_SML_KV **pKVs, int *num_kvs, char **
       return TSDB_CODE_TSC_INVALID_JSON;
     }
     //key
-    uint64_t keyLen = strlen(tag->string);
+    size_t keyLen = strlen(tag->string);
     pkv->key = tcalloc(keyLen + 1, sizeof(char));
     strncpy(pkv->key, tag->string, keyLen);
     //value