Add support for Trigger and JIT stats in the graphical query plan viewer. Fixes #3397

docs/en_US/release_notes_3_2.rst

@@ -10,7 +10,7 @@ This release contains a number of features and fixes reported since the release
 Features
 ********
 
-| `Feature #???? <https://redmine.postgresql.org/issues/????>`_ - Add support for foo!
+| `Feature #3397 <https://redmine.postgresql.org/issues/3397>`_ - Add support for Trigger and JIT stats in the graphical query plan viewer.
 
 
 Bug fixes

web/pgadmin/feature_tests/query_tool_tests.py

@@ -104,6 +104,16 @@ class QueryToolFeatureTest(BaseFeatureTest):
         self._query_tool_notify_statements()
         self._clear_query_tool()
 
+        # explain query with JIT stats
+        print("Explain query with JIT stats... ",
+              file=sys.stderr, end="")
+        if self._supported_jit_on_server():
+            self._query_tool_explain_check_jit_stats()
+            print("OK.", file=sys.stderr)
+            self._clear_query_tool()
+        else:
+            print("Skipped.", file=sys.stderr)
+
     def after(self):
         self.page.remove_server(self.server)
         connection = test_utils.get_db_connection(
@@ -660,9 +670,62 @@ SELECT 1, pg_sleep(300)"""
             wait.until(WaitForAnyElementWithText(
                 (By.CSS_SELECTOR, 'td.payload'), "Hello"))
             print("OK.", file=sys.stderr)
+            self._clear_query_tool()
         else:
             print("Skipped.", file=sys.stderr)
 
+    def _supported_jit_on_server(self):
+        connection = test_utils.get_db_connection(
+            self.server['db'],
+            self.server['username'],
+            self.server['db_password'],
+            self.server['host'],
+            self.server['port'],
+            self.server['sslmode']
+        )
+
+        pg_cursor = connection.cursor()
+        pg_cursor.execute('select version()')
+        version_string = pg_cursor.fetchone()
+
+        is_edb = False
+        if len(version_string) > 0:
+            is_edb = 'EnterpriseDB' in version_string[0]
+
+        connection.close()
+
+        return connection.server_version >= 110000 and not is_edb
+
+    def _query_tool_explain_check_jit_stats(self):
+        wait = WebDriverWait(self.page.driver, 10)
+
+        self.page.fill_codemirror_area_with("SET jit_above_cost=10;")
+        self.page.find_by_id("btn-flash").click()
+        self.page.wait_for_query_tool_loading_indicator_to_disappear()
+        self._clear_query_tool()
+
+        self.page.fill_codemirror_area_with("SELECT count(*) FROM pg_class;")
+        query_op = self.page.find_by_id("btn-query-dropdown")
+        query_op.click()
+        ActionChains(self.driver).move_to_element(
+            query_op.find_element_by_xpath(
+                "//li[contains(.,'Explain Options')]")).perform()
+
+        self.page.find_by_id("btn-explain-verbose").click()
+        self.page.find_by_id("btn-explain-costs").click()
+        self.page.find_by_id("btn-explain-analyze").click()
+
+        self.page.wait_for_query_tool_loading_indicator_to_disappear()
+        self.page.click_tab('Data Output')
+
+        canvas = wait.until(EC.presence_of_element_located(
+            (By.CSS_SELECTOR, "#datagrid .slick-viewport .grid-canvas"))
+        )
+        # Search for 'Output' word in result (verbose option)
+        canvas.find_element_by_xpath("//*[contains(string(), 'JIT')]")
+
+        self._clear_query_tool()
+
 
 class WaitForAnyElementWithText(object):
     def __init__(self, locator, text):

web/pgadmin/misc/static/explain/css/explain.css

@@ -17,6 +17,24 @@
    opacity: 1;
 }
 
+.pg-explain-stats-area {
+  position: absolute;
+  top: 5px;
+  right: 25px;
+  opacity: 0.5;
+}
+
+.pg-explain-stats-btn {
+  top: 5px;
+  min-width: 25px;
+  border: 1px solid transparent;
+  pointer-events: none;
+}
+
+.pg-explain-stats-area:hover {
+  opacity: 1;
+}
+
 .explain-tooltip {
   display: table-cell;
   text-align: left;
@@ -37,8 +55,6 @@ td.explain-tooltip-val {
 
 .pgadmin-explain-tooltip {
   position: absolute;
-  padding:5px;
-  border: 1px solid white;
   opacity:0;
   color: cornsilk;
   background-color: #010125;

web/pgadmin/misc/static/explain/js/explain.js

@@ -1,7 +1,7 @@
 define('pgadmin.misc.explain', [
   'sources/url_for', 'jquery', 'underscore', 'underscore.string',
-  'sources/pgadmin', 'backbone', 'snapsvg',
-], function(url_for, $, _, S, pgAdmin, Backbone, Snap) {
+  'sources/pgadmin', 'backbone', 'snapsvg', 'explain_statistics',
+], function(url_for, $, _, S, pgAdmin, Backbone, Snap, StatisticsModel) {
 
   pgAdmin = pgAdmin || window.pgAdmin || {};
 
@@ -615,6 +615,9 @@ define('pgadmin.misc.explain', [
         });
         toolTipContainer.css('left', toolTipX);
         toolTipContainer.css('top', toolTipY);
+
+        $('.pgadmin-explain-tooltip').css('padding', '5px');
+        $('.pgadmin-explain-tooltip').css('border', '1px solid white');
       });
 
       // Remove tooltip when mouse is out from node's area
@@ -696,6 +699,7 @@ define('pgadmin.misc.explain', [
     },
     initialize: function() {
       this.set('Plan', new PlanModel());
+      this.set('Statistics', new StatisticsModel());
     },
 
     // Parse the JSON data and fetch its children plans
@@ -718,6 +722,17 @@ define('pgadmin.misc.explain', [
         delete data['Plan'];
       }
 
+      var statistics = this.get('Statistics');
+      if (data && 'JIT' in data) {
+        statistics.set('JIT', data['JIT']);
+        delete data ['JIT'];
+      }
+
+      if (data && 'Triggers' in data) {
+        statistics.set('Triggers', data['Triggers']);
+        delete data ['Triggers'];
+      }
+
       return data;
     },
     toJSON: function() {
@@ -745,6 +760,10 @@ define('pgadmin.misc.explain', [
       plan.draw(
         g, xpos, ypos, undefined, undefined, graphContainer, toolTipContainer
       );
+
+      //Set the Statistics as tooltip
+      var statistics = this.get('Statistics');
+      statistics.set_statistics(toolTipContainer);
     },
   });
 
@@ -784,6 +803,21 @@ define('pgadmin.misc.explain', [
             class: 'fa fa-search-minus',
           }));
 
+      var statsArea = $('<div></div>', {
+        class: 'pg-explain-stats-area btn-group hidden',
+        role: 'group',
+      }).appendTo(container);
+
+      $('<button></button>', {
+        id: 'btn-explain-stats',
+        class: 'btn pg-explain-stats-btn badge',
+        title: 'Statistics',
+        tabindex: 0,
+      }).appendTo(statsArea).append(
+        $('<i></i>', {
+          class: 'fa fa-line-chart',
+        }));
+
       // Main div to be drawn all images on
       var planDiv = $('<div></div>', {
           class: 'pgadmin-explain-container',

web/pgadmin/misc/static/explain/js/explain_statistics.js

@@ -0,0 +1,90 @@
+import $ from 'jquery';
+import Backbone from 'backbone';
+
+// Backbone model for other statistics
+let StatisticsModel = Backbone.Model.extend({
+  defaults: {
+    JIT: [],
+    Triggers: [],
+  },
+
+  set_statistics: function(toolTipContainer) {
+    var jit_stats = this.get('JIT'),
+      triggers_stats = this.get('Triggers');
+
+    if (Object.keys(jit_stats).length > 0 ||
+        Object.keys(triggers_stats).length > 0) {
+      $('.pg-explain-stats-area').removeClass('hidden');
+    }
+
+    $('.pg-explain-stats-area').on('mouseover', () => {
+
+      // Empty the tooltip content if it has any and add new data
+      toolTipContainer.empty();
+      if (Object.keys(jit_stats).length == 0 &&
+        Object.keys(triggers_stats).length == 0) {
+        return;
+      }
+
+      var tooltip = $('<table></table>', {
+        class: 'pgadmin-tooltip-table',
+      }).appendTo(toolTipContainer);
+
+      if (Object.keys(jit_stats).length > 0){
+        tooltip.append('<tr><td class="label explain-tooltip">JIT:</td></tr>');
+        _.each(jit_stats, function(value, key) {
+          tooltip.append('<tr><td class="label explain-tooltip">&nbsp&nbsp'
+          + key + '</td><td class="label explain-tooltip-val">'
+          + value + '</td></tr>');
+        });
+      }
+
+      if (Object.keys(triggers_stats).length > 0){
+        tooltip.append('<tr><td class="label explain-tooltip">Triggers:</td></tr>');
+        _.each(triggers_stats, function(triggers, key_id) {
+          if (triggers instanceof Object) {
+            _.each(triggers, function(value, key) {
+              if (key === 'Trigger Name') {
+                tooltip.append('<tr><td class="label explain-tooltip">&nbsp;&nbsp;'
+                + key + '</td><td class="label explain-tooltip-val">'
+                + value + '</td></tr>');
+              } else {
+                tooltip.append('<tr><td class="label explain-tooltip">&nbsp;&nbsp;&nbsp;&nbsp;'
+                + key + '</td><td class="label explain-tooltip-val">'
+                + value + '</td></tr>');
+              }
+            });
+          }
+          else {
+            tooltip.append('<tr><td class="label explain-tooltip">&nbsp;&nbsp;'
+            + key_id + '</td><td class="label explain-tooltip-val">'
+            + triggers + '</td></tr>');
+          }
+        });
+      }
+
+      // Show toolTip at respective x,y coordinates
+      toolTipContainer.css({
+        'opacity': '0.8',
+        'left': '',
+        'right': '65px',
+        'top': '15px',
+      });
+
+      $('.pgadmin-explain-tooltip').css('padding', '5px');
+      $('.pgadmin-explain-tooltip').css('border', '1px solid white');
+    });
+
+    // Remove tooltip when mouse is out from node's area
+    $('.pg-explain-stats-area').on('mouseout', () => {
+      toolTipContainer.empty();
+      toolTipContainer.css({
+        'opacity': '0',
+        'left': 0,
+        'top': 0,
+      });
+    });
+  },
+});
+
+module.exports = StatisticsModel;

web/regression/javascript/misc/explain/explain_statistics_spec.js

@@ -0,0 +1,87 @@
+import StatisticsModel from '../../../../pgadmin/misc/static/explain/js/explain_statistics';
+import $ from 'jquery';
+
+describe('ExplainStatistics', () => {
+  let statsModel;
+  let statsDiv;
+  let tooltipContainer;
+
+  beforeEach(function() {
+    statsModel = new StatisticsModel();
+    statsDiv = '<div class="pg-explain-stats-area btn-group hidden"></div>';
+    tooltipContainer = $('<div></div>', {
+      id: 'toolTip',
+      class: 'pgadmin-explain-tooltip',
+    });
+  });
+
+  describe('No Statistics', () => {
+    it('Statistics button should be hidden', () => {
+      $('body').append(statsDiv);
+
+      statsModel.set('JIT', []);
+      statsModel.set('Triggers', []);
+      statsModel.set_statistics(tooltipContainer);
+
+      expect($('.pg-explain-stats-area').hasClass('hidden')).toBe(true);
+    });
+  });
+
+  describe('JIT Statistics', () => {
+    beforeEach(function() {
+      $('body').append(statsDiv);
+      statsModel.set('JIT', [{'cost': '100'}]);
+      statsModel.set('Triggers', []);
+      statsModel.set_statistics(tooltipContainer);
+    });
+
+    it('Statistics button should be visible', () => {
+      expect($('.pg-explain-stats-area').hasClass('hidden')).toBe(false);
+    });
+
+    it('Mouse over event should be trigger', () => {
+      // Trigger mouse over event
+      var hoverEvent = new $.Event('mouseover');
+      $('.pg-explain-stats-area').trigger(hoverEvent);
+
+      expect(tooltipContainer.css('opacity')).toBe('0.8');
+    });
+
+    it('Mouse out event should be trigger', () => {
+      // Trigger mouse out event
+      var hoverEvent = new $.Event('mouseout');
+      $('.pg-explain-stats-area').trigger(hoverEvent);
+
+      expect(tooltipContainer.css('opacity')).toBe('0');
+    });
+  });
+
+  describe('Triggers Statistics', () => {
+    beforeEach(function() {
+      $('body').append(statsDiv);
+      statsModel.set('JIT', []);
+      statsModel.set('Triggers', [{'name': 'test_trigger'}]);
+      statsModel.set_statistics(tooltipContainer);
+    });
+
+    it('Statistics button should be visible', () => {
+      expect($('.pg-explain-stats-area').hasClass('hidden')).toBe(false);
+    });
+
+    it('Mouse over event should be trigger', () => {
+      // Trigger mouse over event
+      var hoverEvent = new $.Event('mouseover');
+      $('.pg-explain-stats-area').trigger(hoverEvent);
+
+      expect(tooltipContainer.css('opacity')).toBe('0.8');
+    });
+
+    it('Mouse out event should be trigger', () => {
+      // Trigger mouse out event
+      var hoverEvent = new $.Event('mouseout');
+      $('.pg-explain-stats-area').trigger(hoverEvent);
+
+      expect(tooltipContainer.css('opacity')).toBe('0');
+    });
+  });
+});