The Database Lab Engine is an open-source experimentation platform for PostgreSQL databases. Instantly create full-size clones of your production database and use them to test your database migrations, optimize SQL, or deploy full-size staging apps.
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Thin cloning is possible due to <a href="https://en.wikipedia.org/wiki/Copy-on-write" target="_blank" rel="noopener noreferrer">copy-on-write</a>&nbsp;capabilities provided by either&nbsp;<a href="https://en.wikipedia.org/wiki/ZFS" target="_blank" rel="noopener noreferrer">ZFS filesystem</a>&nbsp;or&nbsp;<a href="https://en.wikipedia.org/wiki/Logical_Volume_Manager_(Linux)" target="_blank" rel="noopener noreferrer">LVM2</a>. As an example, cloning of 10 TiB PostgreSQL database takes less than 2 seconds when a single user is using the Database Lab Engine instance, and up to 30 seconds when 15 users are working with it at the same time. 

The Database Lab Engine is an open-source experimentation platform for PostgreSQL databases. Instantly create full-size clones of your production database and use them to test your database migrations, optimize SQL, or deploy full-size staging apps.

Database Lab Engine - Thin database clones for faster development

pg_timetable is an advanced job scheduler for PostgreSQL, offering many advantages over traditional schedulers such as cron and others. It is completely database driven and provides a couple of advanced concepts.
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<ul>
<li>Tasks can be arranged in chains</li>
<li>A chain can consist of built-int commands, SQL and executables</li>
<li>Parameters can be passed to chains</li>
<li>Missed tasks (possibly due to downtime) can be retried automatically</li>
<li>Support for configurable repetitions</li>
<li>Built-in tasks such as sending emails, etc.</li>
<li>Fully database driven configuration</li>
<li>Full support for database driven logging</li>
<li>Cron-style scheduling at the PostgreSQL server time zone</li>
<li>Optional concurrency protection</li>
<li>Task and chain can have execution timeout settings</li>
</ul>

pg_timetable is an advanced job scheduler for PostgreSQL, offering many advantages over traditional schedulers such as cron and others. It is completely database driven and provides a couple of advanced concepts.

pg_timetable - Advanced scheduling for PostgreSQL

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