diff --git a/deps/oblib/src/lib/trace/ob_trace.h b/deps/oblib/src/lib/trace/ob_trace.h
index 9b09efbbe..ad86bae11 100644
--- a/deps/oblib/src/lib/trace/ob_trace.h
+++ b/deps/oblib/src/lib/trace/ob_trace.h
@@ -118,7 +118,8 @@ public:
   union {
     uint8_t policy_;
     struct {
-      uint8_t level_ : 7;
+      uint8_t level_ : 6;
+      bool enable_show_trace_ : 1;
       bool auto_flush_ : 1;
     };
   };
@@ -270,9 +271,11 @@ struct ObTrace
   OB_INLINE UUID get_root_span_id() { return root_span_id_; }
   OB_INLINE uint8_t get_policy() { return policy_; }
   OB_INLINE uint8_t get_level() { return level_; }
-  OB_INLINE void set_level(uint8_t level) { level_ = 0x7f & level; }
+  OB_INLINE void set_level(uint8_t level) { level_ = 0x3f & level; }
   OB_INLINE void set_auto_flush(bool auto_flush) { auto_flush_ = auto_flush; }
   OB_INLINE bool is_auto_flush() { return auto_flush_; }
+  OB_INLINE void set_enable_show_trace(bool enable_show_trace) { enable_show_trace_ = enable_show_trace; }
+  OB_INLINE bool is_enable_show_trace() { return enable_show_trace_; }
   void check_leak_span();
   void reset();
   void dump_span();
@@ -341,7 +344,8 @@ private:
   union {
     uint8_t policy_;
     struct {
-      uint8_t level_ : 7;
+      uint8_t level_ : 6;
+      bool enable_show_trace_ : 1;
       bool auto_flush_ : 1;
     };
   };
diff --git a/src/sql/monitor/flt/ob_flt_utils.cpp b/src/sql/monitor/flt/ob_flt_utils.cpp
index 1db157fdb..b8d7c4588 100644
--- a/src/sql/monitor/flt/ob_flt_utils.cpp
+++ b/src/sql/monitor/flt/ob_flt_utils.cpp
@@ -133,7 +133,7 @@ namespace sql
       session.set_auto_flush_trace(false);
       session.set_trace_enable(false);
     }
-    OZ(ObFLTUtils::init_flt_show_trace_env(session));
+    OBTRACE->set_enable_show_trace(session.is_use_trace_log());
     return ret;
   }
 
@@ -412,7 +412,7 @@ namespace sql
         sid.deserialize(span_id.ptr(), span_id.length(), pos);
         OBTRACE->init(tid, sid);
         FLT_SET_TRACE_LEVEL(sess.get_control_info().level_);
-        FLT_SET_AUTO_FLUSH(sess.is_auto_flush_trace());
+        FLT_SET_AUTO_FLUSH(sess.is_auto_flush_trace() || sess.is_use_trace_log());
       }
     // update trace_id by server self
     } else {
@@ -429,7 +429,7 @@ namespace sql
         }
       }
       FLT_SET_TRACE_LEVEL(sess.get_control_info().level_);
-      FLT_SET_AUTO_FLUSH(sess.is_auto_flush_trace());
+      FLT_SET_AUTO_FLUSH(sess.is_auto_flush_trace() || sess.is_use_trace_log());
     }
 
     LOG_TRACE("flt init log", K(sess.is_trace_enable()),
@@ -501,6 +501,8 @@ namespace sql
 
     if (OB_ISNULL(flt_span_manager)) {
       // failed to get flt span manager, maybe tenant has been dropped, NOT NEED TO record;
+    } else if (!OBTRACE->is_enable_show_trace()) {
+      // do nothing
     } else {
       ObFLTSpanData data;
       ObArenaAllocator allocator;
diff --git a/src/sql/resolver/cmd/ob_show_resolver.cpp b/src/sql/resolver/cmd/ob_show_resolver.cpp
index 6d3a0c70d..f3fdf2085 100644
--- a/src/sql/resolver/cmd/ob_show_resolver.cpp
+++ b/src/sql/resolver/cmd/ob_show_resolver.cpp
@@ -2740,8 +2740,8 @@ DEFINE_SHOW_CLAUSE_SET(SHOW_INDEXES,
 
 DEFINE_SHOW_CLAUSE_SET(SHOW_TRACE,
                        NULL,
-                       "SELECT span_name as `Operation`, start_ts as `StartTime`, concat(elapse, ' µs')  as `ElapseTime` from %s.%s",
-                       R"(SELECT span_name as "OPERATION", to_char(start_ts,'yyyy/mm/dd hh24:mi:ss') as "START_TIME", concat(elapse, ' µs') as "ELAPSE_TIME" FROM %s.%s)",
+                       "SELECT span_name as `Operation`, start_ts as `StartTime`, concat(cast(elapse/1000 as number(20, 3)), ' ms')  as `ElapseTime` from %s.%s",
+                       R"(SELECT span_name as "OPERATION", to_char(start_ts,'yyyy/mm/dd hh24:mi:ss') as "START_TIME", concat(cast(elapse/1000 as number(20, 3)), ' ms') as "ELAPSE_TIME" FROM %s.%s)",
                        NULL);
 
 DEFINE_SHOW_CLAUSE_SET(SHOW_TRACE_JSON,