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    <title>FOLIO Jira</title>
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        <build-number>100246</build-number>
        <build-date>07-02-2024</build-date>
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<item>
            <title>[FOLIO-2283] Compensation scripts in the schema migration guideline in the RMB</title>
                <link>https://folio-org.atlassian.net/browse/FOLIO-2283</link>
                <project id="10290" key="FOLIO">FOLIO</project>
                    <description>&lt;p&gt;Add details regarding compensation scripts and preferred approach to use for schema migration&lt;/p&gt;</description>
                <environment></environment>
        <key id="81437">FOLIO-2283</key>
            <summary>Compensation scripts in the schema migration guideline in the RMB</summary>
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                                            <priority id="10002" iconUrl="https://dev.folio.org/assets/jira-priority/jira-p3.svg">P3</priority>
                        <status id="6" iconUrl="https://folio-org.atlassian.net/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
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                                    <resolution id="10000">Won&apos;t Do</resolution>
                                                        <assignee accountid="557058:de4eac47-6d4e-4b50-9c3c-4a82ed705e52">Taras Spashchenko</assignee>
                                                                <reporter accountid="557058:de4eac47-6d4e-4b50-9c3c-4a82ed705e52">Taras Spashchenko</reporter>
                                    <labels>
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                <created>Wed, 25 Sep 2019 14:14:48 +0000</created>
                <updated>Thu, 8 Jun 2023 11:37:54 +0000</updated>
                            <resolved>Thu, 8 Jun 2023 11:37:54 +0000</resolved>
                                                                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                <comments>
                                                            <comment id="193592" author="5ee89462f7aa140abd82d11d" created="Thu, 4 Nov 2021 11:35:38 +0000"  >&lt;p&gt;RMB doesn&apos;t support migrating to a previous version. SysOps and DevOps need to dump the database before migration if they want to undo the migration.&lt;/p&gt;

&lt;p&gt;Liquibase has limited support for backward-compatible database migrations. For some change-types like &lt;tt&gt;create table&lt;/tt&gt;, &lt;tt&gt;rename column&lt;/tt&gt;, and &lt;tt&gt;add column&lt;/tt&gt; Liquibase automatically creates rollback statements. However, for change-types like &lt;tt&gt;drop table&lt;/tt&gt; and &lt;tt&gt;insert data&lt;/tt&gt; the developers need to create a changeset tag and write the rollback commands: &lt;a href=&quot;https://medium.com/podiihq/getting-started-with-liquibase-8965897092aa&quot; class=&quot;external-link&quot; rel=&quot;nofollow noreferrer&quot;&gt;https://medium.com/podiihq/getting-started-with-liquibase-8965897092aa&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;FOLIO has very limited developer capacity. Do we really want to spend development time for making database migrations backward-compatible and testing them when SysOps and DevOps can easily use their database dumps to undo a migration?&lt;/p&gt;</comment>
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