type convert

src/common/src/tglobal.c

@@ -1627,7 +1627,7 @@ static void doInitGlobalConfig(void) {
   cfg.valType = TAOS_CFG_VTYPE_INT32;
   cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG | TSDB_CFG_CTYPE_B_SHOW;
   cfg.minValue = 0;
-  cfg.maxValue = 2147483647;
+  cfg.maxValue = (float)((1 << 30) - 1);  // N.B. not precise, buffer reserved
   cfg.ptrLength = 0;
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);