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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-71048] Remove one extra binary search iteration during QE query rewrite</title>
                <link>https://jira.mongodb.org/browse/SERVER-71048</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;If the contention max, &lt;em&gt;M&lt;/em&gt;, for a QE encrypted field is greater than 0, the query rewrite currently performs &lt;em&gt;M&lt;/em&gt; + 1 binary search iterations, whereas it should only be running &lt;em&gt;M&lt;/em&gt; iterations. See &lt;a href=&quot;https://github.com/10gen/mongo/blob/082a22c0addd26f8065693ba81d3507b26e02311/src/mongo/crypto/fle_tags.cpp#L215&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo/blob/082a22c0addd26f8065693ba81d3507b26e02311/src/mongo/crypto/fle_tags.cpp#L215&lt;/a&gt;. For a field with contention max &lt;em&gt;M&lt;/em&gt;, the valid contention factor values are 0 through &lt;em&gt;M&lt;/em&gt;-1, inclusive. The extra binary search iteration will lookup ESC entries for contention value &lt;em&gt;M&lt;/em&gt;, but will always end up with 0 entries.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2173777">SERVER-71048</key>
            <summary>Remove one extra binary search iteration during QE query rewrite</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="13202">Works as Designed</resolution>
                                        <assignee username="erwin.pe@mongodb.com">Erwin Pe</assignee>
                                    <reporter username="erwin.pe@mongodb.com">Erwin Pe</reporter>
                        <labels>
                    </labels>
                <created>Thu, 3 Nov 2022 01:16:43 +0000</created>
                <updated>Fri, 27 Oct 2023 13:51:51 +0000</updated>
                            <resolved>Tue, 8 Nov 2022 19:42:32 +0000</resolved>
                                                                    <component>Queryable Encryption</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4964625" author="JIRAUSER1261316" created="Tue, 8 Nov 2022 19:42:32 +0000"  >&lt;p&gt;Closing this as working as designed because (although misleading) with a max contention of N, we actually do indeed partition the field value into N+1 buckets, so the extra emuBinary search iteration is necessary.&lt;/p&gt;</comment>
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