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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-8667] about Geospatial Index(2d or 2dsphere)</title>
                <link>https://jira.mongodb.org/browse/SERVER-8667</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;usually,quardtree and rtree are the common spatail indexes using in GIS.&lt;br/&gt;
so what&apos;s the difference between quardtree/rtree and 2d/2dsphere,&lt;br/&gt;
and what&apos;s the difference between 2d and 2dsphere?&lt;/p&gt;</description>
                <environment></environment>
        <key id="66078">SERVER-8667</key>
            <summary>about Geospatial Index(2d or 2dsphere)</summary>
                <type id="6" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14720&amp;avatarType=issuetype">Question</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="9">Done</resolution>
                                        <assignee username="hari.khalsa@10gen.com">hari.khalsa@10gen.com</assignee>
                                    <reporter username="charmdx@126.com">charm dx</reporter>
                        <labels>
                            <label>geometry</label>
                            <label>geospatial</label>
                            <label>gis</label>
                    </labels>
                <created>Fri, 22 Feb 2013 06:36:53 +0000</created>
                <updated>Fri, 8 Mar 2013 15:55:59 +0000</updated>
                            <resolved>Mon, 4 Mar 2013 15:57:58 +0000</resolved>
                                    <version>2.3.2</version>
                                                    <component>Geo</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="280931" author="hari.khalsa@10gen.com" created="Mon, 4 Mar 2013 15:57:44 +0000"  >&lt;p&gt;2d and 2dsphere both use a Btree.  They each partition &quot;the world&quot; into buckets and index which buckets a geometry is in.  Then, when looking for geometry near/in a region, the query only has to look at things in that region&apos;s buckets.&lt;/p&gt;

&lt;p&gt;2dsphere is strictly on the sphere and offers increased functionality (polygons, lines, etc.).&lt;/p&gt;

&lt;p&gt;2d is on the plane with an option to treat points as on the sphere when calculating distance.&lt;/p&gt;</comment>
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