Google Git
Sign in
apache / druid-website / refs/heads/20_release / . / docs / 0.14.2-incubating / development / geo.html
blob: 8c77942d6e1ac8263ca1921c419e592a335176f8 [file] [log] [blame]
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Apache Druid">
<meta name="keywords" content="druid,kafka,database,analytics,streaming,real-time,real time,apache,open source">
<meta name="author" content="Apache Software Foundation">
<title>Druid | Geographic Queries</title>
<link rel="alternate" type="application/atom+xml" href="/feed">
<link rel="shortcut icon" href="/img/favicon.png">
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.2/css/all.css" integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr" crossorigin="anonymous">
<link href='//fonts.googleapis.com/css?family=Open+Sans+Condensed:300,700,300italic|Open+Sans:300italic,400italic,600italic,400,300,600,700' rel='stylesheet' type='text/css'>
<link rel="stylesheet" href="/css/bootstrap-pure.css?v=1.1">
<link rel="stylesheet" href="/css/base.css?v=1.1">
<link rel="stylesheet" href="/css/header.css?v=1.1">
<link rel="stylesheet" href="/css/footer.css?v=1.1">
<link rel="stylesheet" href="/css/syntax.css?v=1.1">
<link rel="stylesheet" href="/css/docs.css?v=1.1">
<script>
(function() {
var cx = '000162378814775985090:molvbm0vggm';
var gcse = document.createElement('script');
gcse.type = 'text/javascript';
gcse.async = true;
gcse.src = (document.location.protocol == 'https:' ? 'https:' : 'http:') +
'//cse.google.com/cse.js?cx=' + cx;
var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(gcse, s);
})();
</script>
</head>
<body>
<!-- Start page_header include -->
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
<div class="top-navigator">
<div class="container">
<div class="left-cont">
<a class="logo" href="/"><span class="druid-logo"></span></a>
</div>
<div class="right-cont">
<ul class="links">
<li class=""><a href="/technology">Technology</a></li>
<li class=""><a href="/use-cases">Use Cases</a></li>
<li class=""><a href="/druid-powered">Powered By</a></li>
<li class=""><a href="/docs/latest/design/">Docs</a></li>
<li class=""><a href="/community/">Community</a></li>
<li class="header-dropdown">
<a>Apache</a>
<div class="header-dropdown-menu">
<a href="https://www.apache.org/" target="_blank">Foundation</a>
<a href="https://www.apache.org/events/current-event" target="_blank">Events</a>
<a href="https://www.apache.org/licenses/" target="_blank">License</a>
<a href="https://www.apache.org/foundation/thanks.html" target="_blank">Thanks</a>
<a href="https://www.apache.org/security/" target="_blank">Security</a>
<a href="https://www.apache.org/foundation/sponsorship.html" target="_blank">Sponsorship</a>
</div>
</li>
<li class=" button-link"><a href="/downloads.html">Download</a></li>
</ul>
</div>
</div>
<div class="action-button menu-icon">
<span class="fa fa-bars"></span> MENU
</div>
<div class="action-button menu-icon-close">
<span class="fa fa-times"></span> MENU
</div>
</div>
<script type="text/javascript">
var $menu = $('.right-cont');
var $menuIcon = $('.menu-icon');
var $menuIconClose = $('.menu-icon-close');
function showMenu() {
$menu.fadeIn(100);
$menuIcon.fadeOut(100);
$menuIconClose.fadeIn(100);
}
$menuIcon.click(showMenu);
function hideMenu() {
$menu.fadeOut(100);
$menuIconClose.fadeOut(100);
$menuIcon.fadeIn(100);
}
$menuIconClose.click(hideMenu);
$(window).resize(function() {
if ($(window).width() >= 840) {
$menu.fadeIn(100);
$menuIcon.fadeOut(100);
$menuIconClose.fadeOut(100);
}
else {
$menu.fadeOut(100);
$menuIcon.fadeIn(100);
$menuIconClose.fadeOut(100);
}
});
</script>
<!-- Stop page_header include -->
<div class="container doc-container">
<p> Looking for the <a href="/docs/0.20.0/">latest stable documentation</a>?</p>
<div class="row">
<div class="col-md-9 doc-content">
<p>
<a class="btn btn-default btn-xs visible-xs-inline-block visible-sm-inline-block" href="#toc">Table of Contents</a>
</p>
<!--
~ Licensed to the Apache Software Foundation (ASF) under one
~ or more contributor license agreements. See the NOTICE file
~ distributed with this work for additional information
~ regarding copyright ownership. The ASF licenses this file
~ to you under the Apache License, Version 2.0 (the
~ "License"); you may not use this file except in compliance
~ with the License. You may obtain a copy of the License at
~
~ http://www.apache.org/licenses/LICENSE-2.0
~
~ Unless required by applicable law or agreed to in writing,
~ software distributed under the License is distributed on an
~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
~ KIND, either express or implied. See the License for the
~ specific language governing permissions and limitations
~ under the License.
-->
<h1 id="geographic-queries">Geographic Queries</h1>
<p>Apache Druid (incubating) supports filtering specially spatially indexed columns based on an origin and a bound.</p>
<h1 id="spatial-indexing">Spatial Indexing</h1>
<p>In any of the data specs, there is the option of providing spatial dimensions. For example, for a JSON data spec, spatial dimensions can be specified as follows:</p>
<div class="highlight"><pre><code class="language-json" data-lang="json"><span></span><span class="p">{</span>
<span class="nt">&quot;type&quot;</span><span class="p">:</span> <span class="s2">&quot;hadoop&quot;</span><span class="p">,</span>
<span class="nt">&quot;dataSchema&quot;</span><span class="p">:</span> <span class="p">{</span>
<span class="nt">&quot;dataSource&quot;</span><span class="p">:</span> <span class="s2">&quot;DatasourceName&quot;</span><span class="p">,</span>
<span class="nt">&quot;parser&quot;</span><span class="p">:</span> <span class="p">{</span>
<span class="nt">&quot;type&quot;</span><span class="p">:</span> <span class="s2">&quot;string&quot;</span><span class="p">,</span>
<span class="nt">&quot;parseSpec&quot;</span><span class="p">:</span> <span class="p">{</span>
<span class="nt">&quot;format&quot;</span><span class="p">:</span> <span class="s2">&quot;json&quot;</span><span class="p">,</span>
<span class="nt">&quot;timestampSpec&quot;</span><span class="p">:</span> <span class="p">{</span>
<span class="nt">&quot;column&quot;</span><span class="p">:</span> <span class="s2">&quot;timestamp&quot;</span><span class="p">,</span>
<span class="nt">&quot;format&quot;</span><span class="p">:</span> <span class="s2">&quot;auto&quot;</span>
<span class="p">},</span>
<span class="nt">&quot;dimensionsSpec&quot;</span><span class="p">:</span> <span class="p">{</span>
<span class="nt">&quot;dimensions&quot;</span><span class="p">:</span> <span class="p">[],</span>
<span class="nt">&quot;spatialDimensions&quot;</span><span class="p">:</span> <span class="p">[{</span>
<span class="nt">&quot;dimName&quot;</span><span class="p">:</span> <span class="s2">&quot;coordinates&quot;</span><span class="p">,</span>
<span class="nt">&quot;dims&quot;</span><span class="p">:</span> <span class="p">[</span><span class="s2">&quot;lat&quot;</span><span class="p">,</span> <span class="s2">&quot;long&quot;</span><span class="p">]</span>
<span class="p">}]</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="p">}</span>
</code></pre></div>
<table><thead>
<tr>
<th>property</th>
<th>description</th>
<th>required?</th>
</tr>
</thead><tbody>
<tr>
<td>dimName</td>
<td>The name of the spatial dimension. A spatial dimension may be constructed from multiple other dimensions or it may already exist as part of an event. If a spatial dimension already exists, it must be an array of coordinate values.</td>
<td>yes</td>
</tr>
<tr>
<td>dims</td>
<td>A list of dimension names that comprise a spatial dimension.</td>
<td>no</td>
</tr>
</tbody></table>
<h1 id="spatial-filters">Spatial Filters</h1>
<p>The grammar for a spatial filter is as follows:</p>
<div class="highlight"><pre><code class="language-json" data-lang="json"><span></span><span class="s2">&quot;filter&quot;</span> <span class="err">:</span> <span class="p">{</span>
<span class="nt">&quot;type&quot;</span><span class="p">:</span> <span class="s2">&quot;spatial&quot;</span><span class="p">,</span>
<span class="nt">&quot;dimension&quot;</span><span class="p">:</span> <span class="s2">&quot;spatialDim&quot;</span><span class="p">,</span>
<span class="nt">&quot;bound&quot;</span><span class="p">:</span> <span class="p">{</span>
<span class="nt">&quot;type&quot;</span><span class="p">:</span> <span class="s2">&quot;rectangular&quot;</span><span class="p">,</span>
<span class="nt">&quot;minCoords&quot;</span><span class="p">:</span> <span class="p">[</span><span class="mf">10.0</span><span class="p">,</span> <span class="mf">20.0</span><span class="p">],</span>
<span class="nt">&quot;maxCoords&quot;</span><span class="p">:</span> <span class="p">[</span><span class="mf">30.0</span><span class="p">,</span> <span class="mf">40.0</span><span class="p">]</span>
<span class="p">}</span>
<span class="p">}</span>
</code></pre></div>
<h2 id="bounds">Bounds</h2>
<h3 id="rectangular">Rectangular</h3>
<table><thead>
<tr>
<th>property</th>
<th>description</th>
<th>required?</th>
</tr>
</thead><tbody>
<tr>
<td>minCoords</td>
<td>List of minimum dimension coordinates for coordinates [x, y, z, …]</td>
<td>yes</td>
</tr>
<tr>
<td>maxCoords</td>
<td>List of maximum dimension coordinates for coordinates [x, y, z, …]</td>
<td>yes</td>
</tr>
</tbody></table>
<h3 id="radius">Radius</h3>
<table><thead>
<tr>
<th>property</th>
<th>description</th>
<th>required?</th>
</tr>
</thead><tbody>
<tr>
<td>coords</td>
<td>Origin coordinates in the form [x, y, z, …]</td>
<td>yes</td>
</tr>
<tr>
<td>radius</td>
<td>The float radius value</td>
<td>yes</td>
</tr>
</tbody></table>
</div>
<div class="col-md-3">
<div class="searchbox">
<gcse:searchbox-only></gcse:searchbox-only>
</div>
<div id="toc" class="nav toc hidden-print">
</div>
</div>
</div>
</div>
<!-- Start page_footer include -->
<footer class="druid-footer">
<div class="container">
<div class="text-center">
<p>
<a href="/technology">Technology</a>&ensp;·&ensp;
<a href="/use-cases">Use Cases</a>&ensp;·&ensp;
<a href="/druid-powered">Powered by Druid</a>&ensp;·&ensp;
<a href="/docs/latest/">Docs</a>&ensp;·&ensp;
<a href="/community/">Community</a>&ensp;·&ensp;
<a href="/downloads.html">Download</a>&ensp;·&ensp;
<a href="/faq">FAQ</a>
</p>
</div>
<div class="text-center">
<a title="Join the user group" href="https://groups.google.com/forum/#!forum/druid-user" target="_blank"><span class="fa fa-comments"></span></a>&ensp;·&ensp;
<a title="Follow Druid" href="https://twitter.com/druidio" target="_blank"><span class="fab fa-twitter"></span></a>&ensp;·&ensp;
<a title="GitHub" href="https://github.com/apache/druid" target="_blank"><span class="fab fa-github"></span></a>
</div>
<div class="text-center license">
Copyright © 2020 <a href="https://www.apache.org/" target="_blank">Apache Software Foundation</a>.<br>
Except where otherwise noted, licensed under <a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">CC BY-SA 4.0</a>.<br>
Apache Druid, Druid, and the Druid logo are either registered trademarks or trademarks of The Apache Software Foundation in the United States and other countries.
</div>
</div>
</footer>
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-131010415-1"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'UA-131010415-1');
</script>
<script>
function trackDownload(type, url) {
ga('send', 'event', 'download', type, url);
}
</script>
<script src="//code.jquery.com/jquery.min.js"></script>
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<script src="/assets/js/druid.js"></script>
<!-- stop page_footer include -->
<script>
$(function() {
$(".toc").load("/docs/0.14.2-incubating/toc.html");
// There is no way to tell when .gsc-input will be async loaded into the page so just try to set a placeholder until it works
var tries = 0;
var timer = setInterval(function() {
tries++;
if (tries > 300) clearInterval(timer);
var searchInput = $('input.gsc-input');
if (searchInput.length) {
searchInput.attr('placeholder', 'Search');
clearInterval(timer);
}
}, 100);
});
</script>
</body>
</html>