fix(query): avg/stddev divide 0 handling

TD-16762

source/libs/function/src/builtinsimpl.c

@@ -1774,6 +1774,11 @@ int32_t stddevFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
     pStddevRes->result = sqrt(fabs(pStddevRes->quadraticDSum / ((double)pStddevRes->count) - avg * avg));
   }
 
+  // check for overflow
+  if (isinf(pStddevRes->result) || isnan(pStddevRes->result)) {
+    GET_RES_INFO(pCtx)->numOfRes = 0;
+  }
+
   return functionFinalize(pCtx, pBlock);
 }