Added selection for query explain plan

project/ui/qprof-ui.ipynb

@@ -615,9 +615,18 @@
    "source": [
     "button_run_explain_plan = widgets.Button(description=\"Run Explain Plan\")\n",
     "explain_output = widgets.Output()\n",
+    "explain_dropdown = widgets.Dropdown(\n",
+    "    options=[i for i in range(len(qprof.transactions))],\n",
+    "    description='Select Query Index',\n",
+    "    disabled=False,\n",
+    "    layout={'width': \"300px\"}\n",
+    ")\n",
+    "explain_dropdown.style.description_width = '130px'\n",
     "\n",
     "def on_button_clicked_run_explain_plan(b):\n",
+    "    explain_output.clear_output()\n",
     "    with explain_output:\n",
+    "        qprof.set_position(explain_dropdown.value)\n",
     "        qprof.get_qplan_explain()\n",
     "\n",
     "\n",
@@ -631,7 +640,7 @@
     "        display(widgets.HTML(run_query_result._repr_html_()))\n",
     "\n",
     "button_run_explain_plan.on_click(on_button_clicked_run_explain_plan)\n",
-    "explain_plan_widget = widgets.VBox([button_run_explain_plan, explain_output]) "
+    "explain_plan_widget = widgets.VBox([explain_dropdown, button_run_explain_plan, explain_output]) "
    ]
   },
   {