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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-62526] Implement a structured way to lower ABT FunctionCall nodes to SBE expressions</title>
                <link>https://jira.mongodb.org/browse/SERVER-62526</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;See the &quot;TODO&quot; comment in&#160;SBEExpressionLowering::transport(). The goal of this task is to design and implement a scheme for mapping ABT functions to SBE functions.&lt;/p&gt;</description>
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        <key id="1962108">SERVER-62526</key>
            <summary>Implement a structured way to lower ABT FunctionCall nodes to SBE expressions</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="1" iconUrl="https://jira.mongodb.org/images/icons/statuses/open.png" description="">Open</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-query-optimization">Backlog - Query Optimization</assignee>
                                    <reporter username="andrew.paroski@mongodb.com">Drew Paroski</reporter>
                        <labels>
                    </labels>
                <created>Tue, 11 Jan 2022 20:17:42 +0000</created>
                <updated>Tue, 17 Jan 2023 17:02:08 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5118119" author="davis.haupt" created="Tue, 17 Jan 2023 16:57:02 +0000"  >&lt;p&gt;The TODO in the code for this ticket specifically looks at the mapping of MQL-style names (e.g. &quot;$sum&quot;) to SBE function names (e.g. &quot;sum&quot;). This translation makes the most sense at the MQL-&amp;gt;ABT translation level, and ABT FunctionCalls should almost always map directly to SBE EFunctions. Most existing function calls are not a part of M2, so &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-72917&quot; title=&quot;Do not use $-prefixed function names for ABT FunctionCalls&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-72917&quot;&gt;&lt;del&gt;SERVER-72917&lt;/del&gt;&lt;/a&gt; will handle cleaning up the name mappings that are currently in the code, but this ticket will be moved to PM-2790 in case we want to introduce more structure as we support more agg operators in the optimizer.&lt;/p&gt;

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

&lt;p&gt;Feel free to close this ticket if we will stick with stringly-typed functions.&lt;/p&gt;</comment>
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