fix(slow-query): fix cannot show RU in slow query detail page

pkg/apiserver/slowquery/queries.go

@@ -111,10 +111,18 @@ func QuerySlowLogList(req *GetListRequest, sysSchema *utils.SysSchema, db *gorm.
 	return results, nil
 }
 
-func QuerySlowLogDetail(req *GetDetailRequest, db *gorm.DB) (*Model, error) {
+func QuerySlowLogDetail(req *GetDetailRequest, sysSchema *utils.SysSchema, db *gorm.DB) (*Model, error) {
 	var result Model
-	err := db.
-		Select("*, (UNIX_TIMESTAMP(Time) + 0E0) AS timestamp").
+	slowQueryColumns, err := sysSchema.GetTableColumnNames(db, SlowQueryTable)
+	if err != nil {
+		return nil, err
+	}
+	selectStmt, err := genSelectStmt(slowQueryColumns, []string{"*"})
+	if err != nil {
+		return nil, err
+	}
+	err = db.
+		Select(selectStmt).
 		Where("Digest = ?", req.Digest).
 		Where("Time = FROM_UNIXTIME(?)", req.Timestamp).
 		Where("Conn_id = ?", req.ConnectID).

pkg/apiserver/slowquery/service.go

@@ -94,7 +94,7 @@ func (s *Service) getDetails(c *gin.Context) {
 	}
 
 	db := utils.GetTiDBConnection(c)
-	result, err := QuerySlowLogDetail(&req, db.Table(SlowQueryTable))
+	result, err := QuerySlowLogDetail(&req, s.params.SysSchema, db.Table(SlowQueryTable))
 	if err != nil {
 		rest.Error(c, err)
 		return

tests/integration/slowquery/mock_db_test.go

@@ -52,7 +52,7 @@ func (s *testMockDBSuite) mustQuerySlowLogList(req *slowquery.GetListRequest) []
 }
 
 func (s *testMockDBSuite) mustQuerySlowLogDetail(req *slowquery.GetDetailRequest) (*slowquery.Model, error) {
-	d, err := slowquery.QuerySlowLogDetail(req, s.mockDBSession())
+	d, err := slowquery.QuerySlowLogDetail(req, s.sysSchema, s.mockDBSession())
 	return d, err
 }
 

ui/packages/tidb-dashboard-lib/src/apps/SlowQuery/translations/en.yaml

@@ -122,8 +122,8 @@ slow_query:
     ru_tooltip: request units
     resource_group: Resource Group
     resource_group_tooltip: The resource group that the query belongs to
-    time_queued_by_rc: Time Queued by RC
-    time_queued_by_rc_tooltip: The wait time spent in the resource queue
+    time_queued_by_rc: The total time queued by RC
+    time_queued_by_rc_tooltip: 'The total wait time spent in the resource queue (note: {{distro.tikv}} executes requests in parallel so that t this is not a wall time)'
 
   common:
     status:

ui/packages/tidb-dashboard-lib/src/apps/SlowQuery/translations/zh.yaml

@@ -124,8 +124,8 @@ slow_query:
     ru_tooltip: 资源单位(RU)
     resource_group: 资源组
     resource_group_tooltip: SQL 语句所属的资源组
-    time_queued_by_rc: RC 等待耗时
-    time_queued_by_rc_tooltip: SQL 语句在资源组队列中等待的时间
+    time_queued_by_rc: RC 等待累积耗时
+    time_queued_by_rc_tooltip: SQL 语句在资源组队列中等待的累积时间（注：{{distro.tikv}} 会并行等待任务，因此该时间不是自然流逝时间）
 
   common:
     status:

ui/packages/tidb-dashboard-lib/src/apps/Statement/translations/en.yaml

@@ -198,7 +198,7 @@ statement:
     sum_ru: Total RU
     sum_ru_tooltip: The total number of request units (RU) consumed by the statement
     avg_time_queued_by_rc: Mean RC Wait Time in Queue
-    avg_time_queued_by_rc_tooltip: The average time that the query waits in the resource control's queue
+    avg_time_queued_by_rc_tooltip: The average time that the query waits in the resource control's queue (not a wall time)
     max_time_queued_by_rc: Max RC Wait Time in Queue
-    max_time_queued_by_rc_tooltip: The maximum time that the query waits in the resource control's queue
-    rc_wait_time: Wait Time in Resource Control
+    max_time_queued_by_rc_tooltip: The maximum time that the query waits in the resource control's queue (not a wall time)
+    rc_wait_time_tooltip: 'The total wait time spent in the resource queue (note: {{distro.tikv}} executes requests in parallel so that t this is not a wall time)'

ui/packages/tidb-dashboard-lib/src/apps/Statement/translations/zh.yaml

@@ -205,7 +205,8 @@ statement:
     sum_ru: 累积 RU
     sum_ru_tooltip: 该 Statement 的 RU 累积值
     avg_time_queued_by_rc: RC 平均等待耗时
-    avg_time_queued_by_rc_tooltip: SQL 语句在资源组控制队列中平均等待的时间 (Resource Control)
+    avg_time_queued_by_rc_tooltip: SQL 语句在资源组控制队列中平均等待的时间 (Resource Control)（注：{{distro.tikv}} 会并行处理任务，因此该时间不是自然流逝时间）
     max_time_queued_by_rc: RC 最大等待耗时
-    max_time_queued_by_rc_tooltip: SQL 语句在资源组控制队列中最大等待的时间 (Resource Control)
-    rc_wait_time: RC 资源控制等待耗时
+    max_time_queued_by_rc_tooltip: SQL 语句在资源组控制队列中最大等待的时间 (Resource Control)（注：{{distro.tikv}} 会并行处理任务，因此该时间不是自然流逝时间）
+    rc_wait_time: RC 资源控制等待累积耗时
+    rc_wait_time_tooltip: SQL 语句在资源组队列中等待的累积时间（注：{{distro.tikv}} 会并行等待任务，因此该时间不是自然流逝时间）