fix: avoid full table scan when deleting

Author: fstagni

src/DIRAC/WorkloadManagementSystem/DB/JobDB.sql

@@ -198,8 +198,18 @@ BEGIN
     AND ApplicationStatus = OLD.ApplicationStatus
     AND MinorStatus = OLD.MinorStatus;
 
-  -- Optional cleanup (remove zero rows)
-  DELETE FROM JobsHistorySummary WHERE JobCount = 0;
+  -- Remove zero rows
+  DELETE FROM JobsHistorySummary
+  WHERE JobCount = 0
+    AND Status = OLD.Status
+    AND Site = OLD.Site
+    AND Owner = OLD.Owner
+    AND OwnerGroup = OLD.OwnerGroup
+    AND VO = OLD.VO
+    AND JobGroup = OLD.JobGroup
+    AND JobType = OLD.JobType
+    AND ApplicationStatus = OLD.ApplicationStatus
+    AND MinorStatus = OLD.MinorStatus;
 END;
 //
 
@@ -233,3 +243,5 @@ BEGIN
   END IF;
 END;
 //
+
+DELIMITER ;

src/DIRAC/WorkloadManagementSystem/DB/PilotAgentsDB.sql

@@ -106,8 +106,13 @@ BEGIN
     AND Status = OLD.Status
     AND VO = OLD.VO;
 
-  -- Optional cleanup (remove zero rows)
-  DELETE FROM PilotsHistorySummary WHERE PilotCount = 0;
+  -- Remove zero rows
+  DELETE FROM PilotsHistorySummary
+  WHERE PilotCount = 0
+    AND GridSite = OLD.GridSite
+    AND DestinationSite = OLD.DestinationSite
+    AND Status = OLD.Status
+    AND VO = OLD.VO;
 END;
 //
 
@@ -136,3 +141,5 @@ BEGIN
   END IF;
 END;
 //
+
+DELIMITER ;