diff --git a/src/common/src/tglobal.c b/src/common/src/tglobal.c
index 786c612d612e3d683286f3ce3d0d302e0eb34f57..381d2804c1a2fa66cdef46232bdb9f2f05b2b6f1 100644
--- a/src/common/src/tglobal.c
+++ b/src/common/src/tglobal.c
@@ -817,6 +817,16 @@ static void doInitGlobalConfig(void) {
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);
 
+  cfg.option = "precision";
+  cfg.ptr = &tsTimePrecision;
+  cfg.valType = TAOS_CFG_VTYPE_INT8;
+  cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG | TSDB_CFG_CTYPE_B_SHOW;
+  cfg.minValue = TSDB_MIN_PRECISION;
+  cfg.maxValue = TSDB_MAX_PRECISION;
+  cfg.ptrLength = 0;
+  cfg.unitType = TAOS_CFG_UTYPE_NONE;
+  taosInitConfigOption(cfg);
+
   cfg.option = "comp";
   cfg.ptr = &tsCompression;
   cfg.valType = TAOS_CFG_VTYPE_INT8;
diff --git a/tests/pytest/functions/showOfflineThresholdIs864000.py b/tests/pytest/functions/showOfflineThresholdIs864000.py
index 6734df1fac8d88c36288e39f766eef332d7b855a..a7a1c2bf3f7d998b1ec0b0cd0e0747381e9bf4fa 100644
--- a/tests/pytest/functions/showOfflineThresholdIs864000.py
+++ b/tests/pytest/functions/showOfflineThresholdIs864000.py
@@ -25,7 +25,7 @@ class TDTestCase:
 
     def run(self):
         tdSql.query("show variables")
-        tdSql.checkData(52, 1, 864000)
+        tdSql.checkData(53, 1, 864000)
 
     def stop(self):
         tdSql.close()