[TD-6645/enhance]: convert dots in OpenTSDB metric field to underscore

src/client/src/tscParseOpenTSDB.c

@@ -58,7 +58,13 @@ static int32_t parseTelnetMetric(TAOS_SML_DATA_POINT *pSml, const char **index,
       break;
     }
 
-    pSml->stableName[len] = *cur;
+    //convert dot to underscore for now, will be removed once dot is allowed in tbname.
+    if (*cur == '.') {
+      pSml->stableName[len] = '_';
+    } else {
+      pSml->stableName[len] = *cur;
+    }
+
     cur++;
     len++;
   }
@@ -455,6 +461,13 @@ int32_t parseMetricFromJSON(cJSON *root, TAOS_SML_DATA_POINT* pSml, SSmlLinesInf
     return TSDB_CODE_TSC_INVALID_JSON;
   }
 
+  //convert dot to underscore for now, will be removed once dot is allowed in tbname.
+  for (int i = 0; i < strlen(metric->valuestring); ++i) {
+    if (metric->valuestring[i] == '.') {
+      metric->valuestring[i] = '_';
+    }
+  }
+
   tstrncpy(pSml->stableName, metric->valuestring, stableLen + 1);
 
   return TSDB_CODE_SUCCESS;