Execution plan tab name fix (show plan number)

plugins/org.jkiss.dbeaver.core/src/org/jkiss/dbeaver/ui/views/session/SessionManagerViewer.java

@@ -256,16 +256,18 @@ public class SessionManagerViewer<SESSION_TYPE extends DBAServerSession>
     }
 
     private void createPlannerTab(CTabFolder previewFolder) {
-        planViewer = new ExplainPlanViewer(workbenchPart, sqlViewer, previewFolder);
+        planViewer = new ExplainPlanViewer(workbenchPart, sqlViewer, previewFolder, 0);
 
 //        planTree = new PlanNodesTree(previewFolder, SWT.SHEET, workbenchPart.getSite());
 //        planTree.substituteProgressPanel(getSessionListControl());
         planViewer.addSelectionChangedListener(event -> showPlanNode());
 
+
         CTabItem sqlPlanItem = new CTabItem(previewFolder, SWT.NONE);
         sqlPlanItem.setText(CoreMessages.viewer_sql_plan_item_execution_plan);
         sqlPlanItem.setImage(DBeaverIcons.getImage(UIIcon.SQL_PAGE_EXPLAIN_PLAN));
         sqlPlanItem.setControl(planViewer.getControl());
+        sqlPlanItem.setData(planViewer);
     }
 
     private void showPlanNode()

plugins/org.jkiss.dbeaver.ui.editors.sql/src/org/jkiss/dbeaver/ui/editors/sql/SQLEditor.java

@@ -1599,10 +1599,18 @@ public class SQLEditor extends SQLEditorBase implements
         }
 
         if (planView == null) {
-            planView = new ExplainPlanViewer(this, this, resultTabs);
+            int maxPlanNumber = 0;
+            for (CTabItem item : resultTabs.getItems()) {
+                if (item.getData() instanceof ExplainPlanViewer) {
+                    maxPlanNumber = Math.max(maxPlanNumber, ((ExplainPlanViewer) item.getData()).getPlanNumber());
+                }
+            }
+            maxPlanNumber++;
+
+            planView = new ExplainPlanViewer(this, this, resultTabs, maxPlanNumber);
             final CTabItem item = new CTabItem(resultTabs, SWT.CLOSE);
             item.setControl(planView.getControl());
-            item.setText(SQLEditorMessages.editors_sql_error_execution_plan_title);
+            item.setText(SQLEditorMessages.editors_sql_error_execution_plan_title + " - " + maxPlanNumber);
             if (sqlQuery != null) {
                 item.setToolTipText(sqlQuery.getText());
             }

plugins/org.jkiss.dbeaver.ui.editors.sql/src/org/jkiss/dbeaver/ui/editors/sql/plan/ExplainPlanViewer.java

@@ -96,15 +96,17 @@ public class ExplainPlanViewer extends Viewer implements IAdaptable
     private SQLQuery lastQuery;
     private Object lastQueryId;
     private DBCPlan lastPlan;
+    private int planNumber;
 
     private RefreshPlanAction refreshPlanAction;
     
     private String curFolder;
 
-    public ExplainPlanViewer(final IWorkbenchPart workbenchPart, DBPContextProvider contextProvider, Composite parent)
+    public ExplainPlanViewer(final IWorkbenchPart workbenchPart, DBPContextProvider contextProvider, Composite parent, int planNumber)
     {
         this.workbenchPart = workbenchPart;
         this.contextProvider = contextProvider;
+        this.planNumber = planNumber;
 
         this.refreshPlanAction = new RefreshPlanAction();
         this.refreshPlanAction.setEnabled(false);
@@ -170,8 +172,11 @@ public class ExplainPlanViewer extends Viewer implements IAdaptable
     public SQLQuery getQuery() {
         return lastQuery;
     }
-    
-  
+
+    public int getPlanNumber() {
+        return planNumber;
+    }
+
     public boolean loadQueryPlan(DBCQueryPlanner planner, Viewer viewer) {
         if (planner instanceof DBCQueryPlannerSerializable) {