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badge--secondary">Version: Next</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>System Tables</h1></header><h2 class="anchor anchorWithStickyNavbar_LWe7" id="summary">Summary<a class="hash-link" href="#summary" title="Direct link to heading"></a></h2><p>This document describes Apache DevLake&#x27;s data models of its own entities. These tables are used and managed by the Devlake framework. </p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="use-cases">Use Cases<a class="hash-link" href="#use-cases" title="Direct link to heading"></a></h2><ol><li>As a user, you can check <code>_devlake_blueprints</code> and <code>_devlake_pipelines</code> when failing to collect data via DevLake&#x27;s blueprint.</li><li>As a contributor, you can check these tables to debug task concurrency or data migration features.</li></ol><h2 class="anchor anchorWithStickyNavbar_LWe7" id="data-models">Data Models<a class="hash-link" href="#data-models" title="Direct link to heading"></a></h2><p>These tables start with a prefix <code>_devlake</code>. Unlike raw or tool data tables, DevLake only contains one set of system tables. The naming convension of these tables is <code>_raw_{plugin}_{entity}</code>, such as </p><ul><li>_devlake_blueprints</li><li>_devlake_pipelines</li><li>_devlake_tasks</li><li>_devlake_subtasks</li><li>...</li></ul><p>Normally, you do not need to use these tables, unless you have one of the above use cases.</p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/apache/incubator-devlake-website/edit/main/docs/DataModels/SystemTables.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_vwxv"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"><a class="pagination-nav__link pagination-nav__link--prev" href="/docs/DataModels/RawLayerSchema"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Raw Layer Schema</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/docs/DeveloperManuals"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Developer Manuals</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#summary" class="table-of-contents__link toc-highlight">Summary</a></li><li><a href="#use-cases" class="table-of-contents__link toc-highlight">Use Cases</a></li><li><a href="#data-models" class="table-of-contents__link toc-highlight">Data Models</a></li></ul></div></div></div></div></main></div></div><footer class="footer footer--dark"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">Docs</div><ul class="footer__items clean-list"><li class="footer__item"><a class="footer__link-item" href="/docs/GettingStarted">Getting Started</a></li><li class="footer__item"><a class="footer__link-item" href="/docs/DataModels/DevLakeDomainLayerSchema">Data Models</a></li><li class="footer__item"><a class="footer__link-item" href="/docs/Metrics">Engineering Metrics</a></li></ul></div><div class="col footer__col"><div class="footer__title">Community</div><ul class="footer__items clean-list"><li class="footer__item"><a href="https://join.slack.com/t/devlake-io/shared_invite/zt-2ox842kuu-_6x3Lwdj88YpzKhMRpgnMg" target="_blank" rel="noopener noreferrer" class="footer__link-item">Slack</a></li><li class="footer__item"><a href="https://github.com/apache/incubator-devlake/issues" target="_blank" rel="noopener noreferrer" class="footer__link-item">GitHub Issue Tracker</a></li><li class="footer__item"><a href="https://github.com/apache/incubator-devlake-website/issues" target="_blank" rel="noopener noreferrer" class="footer__link-item">GitHub Issue Tracker For Docs</a></li></ul></div><div class="col footer__col"><div class="footer__title">More</div><ul class="footer__items clean-list"><li class="footer__item"><a href="https://github.com/apache/incubator-devlake" target="_blank" rel="noopener noreferrer" class="footer__link-item">GitHub</a></li><li class="footer__item"><a href="https://twitter.com/ApacheDevLake" target="_blank" rel="noopener noreferrer" class="footer__link-item">Twitter</a></li><li class="footer__item"><a class="footer__link-item" href="/community/trademark">Trademark Guidelines</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">
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