grafana/public/app/plugins/datasource/influxdb/partials/query.editor.html

<div class="editor-row">

	<div ng-repeat="target in panel.targets" ng-controller="InfluxQueryCtrl" ng-init="init()" ng-class="{'tight-form-disabled': target.hide}" class="tight-form-container-no-item-borders" style="margin-bottom: 10px">
		<div  class="tight-form">
			<ul class="tight-form-list pull-right">
				<li ng-show="parserError" class="tight-form-item">
					<a bs-tooltip="parserError" style="color: rgb(229, 189, 28)" role="menuitem">
						<i class="fa fa-warning"></i>
					</a>
				</li>
				<li class="tight-form-item">
					<a class="pointer" tabindex="1" ng-click="toggleQueryMode()">
						<i class="fa fa-pencil"></i>
					</a>
				</li>
				<li class="tight-form-item">
					<div class="dropdown">
						<a  class="pointer dropdown-toggle"
							data-toggle="dropdown"
							tabindex="1">
							<i class="fa fa-bars"></i>
						</a>
						<ul class="dropdown-menu pull-right" role="menu">
							<li role="menuitem">
								<a  tabindex="1"
									ng-click="duplicate()">
									Duplicate
								</a>
							</li>
							<li role="menuitem">
								<a  tabindex="1"
									ng-click="moveMetricQuery($index, $index-1)">
									Move up
								</a>
							</li>
							<li role="menuitem">
								<a  tabindex="1"
									ng-click="moveMetricQuery($index, $index+1)">
									Move down
								</a>
							</li>
						</ul>
					</div>
				</li>
				<li class="tight-form-item last">
					<a class="pointer" tabindex="1" ng-click="removeDataQuery(target)">
						<i class="fa fa-remove"></i>
					</a>
				</li>
			</ul>

			<ul class="tight-form-list">
				<li>
					<a  class="tight-form-item"
						ng-click="target.hide = !target.hide; get_data();"
						role="menuitem">
						<i class="fa fa-eye"></i>
					</a>
				</li>
			</ul>

			<input  type="text" class="tight-form-clear-input span10" ng-model="target.query" focus-me="target.rawQuery" spellcheck='false' ng-model-onblur ng-change="targetTextChanged()" ng-show="target.rawQuery" />

			<ul class="tight-form-list" role="menu" ng-hide="target.rawQuery">
				<li class="tight-form-item query-keyword" style="width: 75px;">
					SELECT
				</li>
				<li class="dropdown tight-form-item">
					<a gf-dropdown="functionMenu" class="dropdown-toggle" data-toggle="dropdown">
						{{target.function}}<span>(value)</span>
					</a>
				</li>
			</ul>

			<div class="clearfix"></div>
		</div>

		<div class="tight-form" ng-hide="target.rawQuery">
			<ul class="tight-form-list">
				<li class="tight-form-item">
					<i class="fa fa-eye invisible"></i>
				</li>
				<li class="tight-form-item query-keyword" style="width: 75px;">
					FROM
				</li>
				<li>
					<metric-segment segment="measurementSegment" get-alt-segments="getMeasurements()" on-value-changed="measurementChanged()"></metric-segment>
				</li>
			</ul>

			<div class="clearfix"></div>
		</div>

		<div class="tight-form" ng-hide="target.rawQuery">
			<ul class="tight-form-list">
				<li class="tight-form-item">
					<i class="fa fa-eye invisible"></i>
				</li>

				<li class="tight-form-item query-keyword" style="width: 75px;">
					WHERE
				</li>

				<li ng-repeat="segment in tagSegments">
					<metric-segment segment="segment" get-alt-segments="getTagsOrValues(segment, $index)" on-value-changed="tagSegmentUpdated(segment, $index)"></metric-segment>
				</li>
			</ul>
			<div class="clearfix"></div>
		</div>

		<div class="tight-form" ng-hide="target.rawQuery">
			<ul class="tight-form-list">
				<li class="tight-form-item">
					<i class="fa fa-eye invisible"></i>
				</li>

				<li class="tight-form-item" >
					<span class="query-keyword">GROUP BY</span>
				</li>

				<li class="tight-form-item">
					time($interval)
				</li>

				<li ng-repeat="segment in groupBySegments">
					<metric-segment segment="segment" get-alt-segments="getGroupByTagSegments(segment, 0)" on-value-changed="groupByTagUpdated(segment, $index)"></metric-segment>
				</li>
				<li class="dropdown">
					<a class="tight-form-item pointer" data-toggle="dropdown" bs-tooltip="'Insert missing values, important when stacking'" data-placement="right">
						<span ng-show="target.fill">
							fill ({{target.fill}})
						</span>
						<span ng-show="!target.fill">
							no fill
						</span>
					</a>
					<ul class="dropdown-menu">
						<li><a ng-click="target.fill = ''">no fill</a></li>
						<li><a ng-click="target.fill = 'null'">fill (null)</a></li>
						<li><a ng-click="target.fill = '0'">fill (0)</a></li>
					</ul>
				</li>
			</ul>
			<ul class="tight-form-list pull-right">
				<li class="tight-form-item">
					Alias pattern
				</li>
				<li>
					<input type="text" class="input-medium tight-form-input" ng-model="target.alias" spellcheck='false' placeholder="alias" ng-blur="get_data()">
				</li>
			</ul>
			<div class="clearfix"></div>
		</div>

	</div>
</div>

<section class="grafana-metric-options">
	<div class="tight-form">
		<ul class="tight-form-list">
			<li class="tight-form-item tight-form-item-icon">
				<i class="fa fa-wrench"></i>
			</li>
			<li class="tight-form-item">
				 Group by time interval
			</li>
			<li>
				<input type="text" class="input-medium tight-form-input" ng-model="panel.interval" ng-blur="get_data();"
				spellcheck='false' placeholder="example: >10s">
			</li>
			<li class="tight-form-item">
				<i class="fa fa-question-circle" bs-tooltip="'Set a low limit by having a greater sign: example: >60s'" data-placement="right"></i>
			</li>
		</ul>
		<div class="clearfix"></div>
	</div>

	<div class="tight-form">
		<ul class="tight-form-list">
			<li class="tight-form-item tight-form-item-icon">
				<i class="fa fa-info-circle"></i>
			</li>
			<li class="tight-form-item">
				<a ng-click="toggleEditorHelp(1);" bs-tooltip="'click to show helpful info'" data-placement="bottom">
					alias patterns
				</a>
			</li>
			<li class="tight-form-item">
				<a ng-click="toggleEditorHelp(2)" bs-tooltip="'click to show helpful info'" data-placement="bottom">
					stacking &amp; and fill
				</a>
			</li>
			<li class="tight-form-item">
				<a ng-click="toggleEditorHelp(3)" bs-tooltip="'click to show helpful info'" data-placement="bottom">
					group by time
				</a>
			</li>
		</ul>
		<div class="clearfix"></div>
	</div>
</section>

<div class="editor-row">
	<div class="pull-left" style="margin-top: 30px;">

		<div class="grafana-info-box span6" ng-if="editorHelpIndex === 1">
			<h5>Alias patterns</h5>
			<ul>
				<li>$m = replaced with measurement name</li>
				<li>$measurement = replaced with measurement name</li>
				<li>$tag_hostname = replaced with the value of the hostname tag</li>
				<li>You can also use [[tag_hostname]] pattern replacement syntax</li>
			</ul>
		</div>

		<div class="grafana-info-box span6" ng-if="editorHelpIndex === 2">
			<h5>Stacking and fill</h5>
			<ul>
				<li>When stacking is enabled it important that points align</li>
				<li>If there are missing points for one series it can cause gaps or missing bars</li>
				<li>You must use fill(0), and select a group by time low limit</li>
				<li>Use the group by time option below your queries and specify for example &gt;10s if your metrics are written every 10 seconds</li>
				<li>This will insert zeros for series that are missing measurements and will make stacking work properly</li>
			</ul>
		</div>

		<div class="grafana-info-box span6" ng-if="editorHelpIndex === 3">
			<h5>Group by time</h5>
			<ul>
				<li>Group by time is important, otherwise the query could return many thousands of datapoints that will slow down Grafana</li>
				<li>Leave the group by time field empty for each query and it will be calculated based on time range and pixel width of the graph</li>
				<li>If you use fill(0) or fill(null) set a low limit for the auto group by time interval</li>
				<li>The low limit can only be set in the group by time option below your queries</li>
				<li>You set a low limit by adding a greater sign before the interval</li>
				<li>Example: &gt;60s if you write metrics to InfluxDB every 60 seconds</li>
			</ul>
		</div>


	</div>
</div>