tetsuya

<ul>
<li><a href="https://devcenter.heroku.com/articles/managing-vacuum-on-heroku-postgres" target="_blank" rel="nofollow noopener noreferrer">Managing VACUUM on Heroku Postgres | Heroku Dev Center</a></li>
<li><a href="https://www.postgresql.org/docs/current/runtime-config-autovacuum.html" target="_blank" rel="nofollow noopener noreferrer">PostgreSQL: Documentation: 13: 19.10. Automatic Vacuuming</a></li>
</ul>

<blockquote>
Entries in pg_statistic are updated by the ANALYZE and VACUUM ANALYZE commands, and are always approximate even when freshly updated. 
<a href="https://www.postgresql.org/docs/12/planner-stats.html" target="_blank" rel="nofollow noopener noreferrer">PostgreSQL: Documentation: 12: 14.2. Statistics Used by the Planner</a>
</blockquote>
<blockquote>
VACUUM ANALYZE performs a VACUUM and then an ANALYZE for each selected table. 
<a href="https://www.postgresql.org/docs/13/sql-vacuum.html" target="_blank" rel="nofollow noopener noreferrer">PostgreSQL: Documentation: 13: VACUUM</a>
</blockquote>
<ul>
<li><a href="https://www.postgresql.org/docs/13/sql-analyze.html" target="_blank" rel="nofollow noopener noreferrer">PostgreSQL: Documentation: 13: ANALYZE</a></li>
</ul>

<ul>
<li><a href="https://docs.microsoft.com/en-au/azure/postgresql/howto-optimize-autovacuum" target="_blank" rel="nofollow noopener noreferrer">Optimize autovacuum - Azure Database for PostgreSQL - Single Server | Microsoft Docs</a></li>
</ul>