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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-54409] Extend SBE stage builder to support bounded collection scans for time series collections</title>
                <link>https://jira.mongodb.org/browse/SERVER-54409</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In-progress work will change time series collections so that the &lt;tt&gt;RecordStore&lt;/tt&gt; for the collection is clustered on the &lt;tt&gt;_id&lt;/tt&gt;. The &lt;tt&gt;_id&lt;/tt&gt; of a time series bucket collection encodes the min time of the bucket with second resolution. Therefore, if the query involves predicates on time, these predicates could end up rewritten as predicates on the bucket&apos;s &lt;tt&gt;_id&lt;/tt&gt; (see related ticket &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53758&quot; title=&quot;Map predicates on min time to a portion of _id&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53758&quot;&gt;&lt;del&gt;SERVER-53758&lt;/del&gt;&lt;/a&gt;). In turn, we will extend the data access planner to produce bounded collection scan plans, taking advantage of the clustering on &lt;tt&gt;_id&lt;/tt&gt;. Unlike traditional COLLSCAN plans, these plans will not have to examine the entire &lt;tt&gt;RecordStore&lt;/tt&gt;, but rather will be able to scan just some range of the &lt;tt&gt;RecordStore&lt;/tt&gt;. There is work tracked by &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54008&quot; title=&quot;Generalize CollectionScan node so it can perform bounded scans over time series bucket collections&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54008&quot;&gt;&lt;del&gt;SERVER-54008&lt;/del&gt;&lt;/a&gt; and &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54398&quot; title=&quot;Extend query planner to generate bounded collection scan plans for time series collections&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54398&quot;&gt;&lt;del&gt;SERVER-54398&lt;/del&gt;&lt;/a&gt; to make this work with the classic execution engine.&lt;/p&gt;

&lt;p&gt;In the long run, it will also have to work with SBE. Luckily, the SBE &lt;tt&gt;scan&lt;/tt&gt; operator already supports a generic concept of bounds. The work will be to ensure that given a &lt;tt&gt;QuerySolution&lt;/tt&gt; with a bounded COLLSCAN, the SBE stage builder can convert this to the correct SBE execution plan.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1616866">SERVER-54409</key>
            <summary>Extend SBE stage builder to support bounded collection scans for time series collections</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="kevin.cherkauer@mongodb.com">Kevin Cherkauer</assignee>
                                    <reporter username="david.storch@mongodb.com">David Storch</reporter>
                        <labels>
                            <label>sbe</label>
                    </labels>
                <created>Mon, 8 Feb 2021 21:39:26 +0000</created>
                <updated>Tue, 6 Feb 2024 19:43:30 +0000</updated>
                            <resolved>Tue, 6 Feb 2024 19:34:33 +0000</resolved>
                                                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="6072696" author="JIRAUSER1270811" created="Tue, 6 Feb 2024 19:34:33 +0000"  >&lt;p&gt;Closing as &quot;Done&quot; (with no code changes) as the work listed in the description as not covered by other already-finished tickets:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;In the long run, it will also have to work with SBE. Luckily, the SBE scan&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;operator already supports a generic concept of bounds. The work will&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;be to ensure that given a QuerySolution with a bounded COLLSCAN,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;the SBE stage builder can convert this to the correct SBE execution plan.&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
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&lt;/div&gt;
&lt;p/&gt;
&lt;p&gt;was already done by PM-3161 Support Clustered Collections in SBE.&lt;/p&gt;</comment>
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                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="1599102">SERVER-54008</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="1589144">SERVER-53758</issuekey>
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            <issuelink>
            <issuekey id="1616442">SERVER-54398</issuekey>
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