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    <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-85034] Investigate data generation and loading into JS CE accuracy tests</title>
                <link>https://jira.mongodb.org/browse/SERVER-85034</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;CE accuracy testing requires a variety of datasets against which to test how accurate are different estimation methods.&lt;/p&gt;

&lt;p&gt;Currently there are two candidates to generate random datasets:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;buildscripts/cost_model/data_generator.py&lt;/li&gt;
	&lt;li&gt;src/mongo/db/query/ce/rand_utils.cpp, and rand_utils_new.cpp&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Both data generation tools cannot be called easily from a JS test script. The goal of this task is to investigate if and how we can use the Python data generator, so that a dataset is generated and stored as a JSON file in a way that allows later a JS test to load that file, and run various queries against it.&lt;/p&gt;

&lt;p&gt;It should be straightforward to regenerate those input datasets, or generate new ones. This could be achieved via a script that takes some dataset descriptor(s) and produces a JSON file, which is then stored in a well-known location to be used by the JS test.&lt;/p&gt;

&lt;p&gt;This task is about figuring out how do the above, and provide one-two examples. A subsequent&#160; task will implement the generation of a variety of datasets.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2179109">SERVER-85034</key>
            <summary>Investigate data generation and loading into JS CE accuracy tests</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="timour.katchaounov@mongodb.com">Timour Katchaounov</assignee>
                                    <reporter username="timour.katchaounov@mongodb.com">Timour Katchaounov</reporter>
                        <labels>
                            <label>M7</label>
                    </labels>
                <created>Wed, 9 Nov 2022 14:12:31 +0000</created>
                <updated>Fri, 12 Jan 2024 03:00:53 +0000</updated>
                            <resolved>Tue, 13 Dec 2022 15:10:49 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="5051136" author="JIRAUSER1258247" created="Tue, 13 Dec 2022 15:10:49 +0000"  >&lt;p&gt;The PR for this investigation ticked has been approved.&lt;/p&gt;

&lt;p&gt;It will be merged to master as &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-72036&quot; title=&quot;Implement data generation and loading into JS CE accuracy tests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-72036&quot;&gt;&lt;del&gt;SERVER-72036&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
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