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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-68743] Reenable pushing down into column scan stage of $type match expression</title>
                <link>https://jira.mongodb.org/browse/SERVER-68743</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-68713&quot; title=&quot;Refactor expression generation out of filter stage builder&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68713&quot;&gt;&lt;del&gt;SERVER-68713&lt;/del&gt;&lt;/a&gt; refactored translation of a few (easy to do) match expressions into EExpressions, but for columnstore indexes we&apos;d like to also enable pushing down filters such as $in, $not, $type and $exists. After the translation is done will be able to re-enable splitting the corresponding predicates into per-path filters and pushing them down.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;Also, the refactor from &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-68713&quot; title=&quot;Refactor expression generation out of filter stage builder&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68713&quot;&gt;&lt;del&gt;SERVER-68713&lt;/del&gt;&lt;/a&gt; preserved the defensive wrappers, such as makeFillEmptyFalse, which are not needed when generating per-path filters in CSI. It would be nice to avoid injecting them.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2111777">SERVER-68743</key>
            <summary>Reenable pushing down into column scan stage of $type match expression</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="13201">Fixed</resolution>
                                        <assignee username="irina.yatsenko@mongodb.com">Irina Yatsenko</assignee>
                                    <reporter username="irina.yatsenko@mongodb.com">Irina Yatsenko</reporter>
                        <labels>
                    </labels>
                <created>Thu, 11 Aug 2022 17:04:47 +0000</created>
                <updated>Sun, 29 Oct 2023 21:34:38 +0000</updated>
                            <resolved>Thu, 27 Oct 2022 17:55:49 +0000</resolved>
                                                    <fixVersion>6.2.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="4933132" author="JIRAUSER1259274" created="Thu, 27 Oct 2022 17:55:49 +0000"  >&lt;p&gt;Implemented pushing down of $type and {$exists: true}&lt;/p&gt;</comment>
                            <comment id="4933103" author="xgen-internal-githook" created="Thu, 27 Oct 2022 17:50:59 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Irina Yatsenko&apos;, &apos;email&apos;: &apos;irina.yatsenko@mongodb.com&apos;, &apos;username&apos;: &apos;IrinaYatsenko&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-68743&quot; title=&quot;Reenable pushing down into column scan stage of $type match expression&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68743&quot;&gt;&lt;del&gt;SERVER-68743&lt;/del&gt;&lt;/a&gt; Push down $exits and $type&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c32ea289b77a3ec19651a0beb49d62275928355c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c32ea289b77a3ec19651a0beb49d62275928355c&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4820959" author="justin.seyster" created="Mon, 12 Sep 2022 22:53:03 +0000"  >&lt;p&gt;I split &lt;tt&gt;$not&lt;/tt&gt; into its own ticket to get this work started.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-69610&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/SERVER-69610&lt;/a&gt;&lt;/p&gt;</comment>
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                                                                <inwardlinks description="is depended on by">
                                        <issuelink>
            <issuekey id="2120534">SERVER-69105</issuekey>
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            <issuekey id="2143693">SERVER-69916</issuekey>
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            <issuelink>
            <issuekey id="2163184">SERVER-70726</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="2134588">SERVER-69610</issuekey>
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            <issuelink>
            <issuekey id="2142912">SERVER-69885</issuekey>
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