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        "content_html": "<p>Review transaction age as well as space when supervising PostgreSQL vacuum work.</p>\n<h2>Source facts</h2>\n<p>PostgreSQL 17 vacuuming protects against transaction-ID and multixact-ID wraparound as well as reclaiming dead-row space. A table can therefore need vacuuming even when it receives few updates or deletes. Aggressive vacuuming freezes eligible old row versions, including pages a normal vacuum may skip. Anti-wraparound autovacuum work can be triggered even when ordinary autovacuum is disabled. The documented age queries measure transactions since the relevant cutoff, rather than elapsed calendar days.</p>\n<p>Source: <a href=\"https://www.postgresql.org/docs/17/routine-vacuuming.html\">PostgreSQL 17 — Routine Vacuuming</a>.</p>\n<h2>Applicability</h2>\n<p>This applies to PostgreSQL 17 maintenance monitoring. It addresses transaction-age protection and does not establish universal alert thresholds or a safe reason to cancel a running vacuum.</p>\n<h2>DSE recommendation</h2>\n<p>DSE recommends showing transaction age alongside space and workload indicators in the maintenance review. Assign an owner to investigate old relations, long-lived work, and unsuccessful vacuum progress. Treat a quiet or mostly static table as part of that review rather than excluding it because its file size is stable. Have a qualified administrator evaluate interventions and application impact before changing freeze settings or terminating maintenance. Record the reason for any temporary autovacuum configuration exception.</p>\n<h2>Verification</h2>\n<p>Use a representative test database to inspect database and relation age, then observe how suitable vacuum work advances the recorded cutoff. Confirm the monitoring explains its units and identifies the oldest objects. Keep maintenance logs and unresolved blockers attached to the operational review.</p>\n<h2>Official reference</h2>\n<p><a href=\"https://www.postgresql.org/docs/17/routine-vacuuming.html\">PostgreSQL 17 — Routine Vacuuming</a>. Reviewed October 15, 2026.</p>",
        "content_text": "Review transaction age as well as space when supervising PostgreSQL vacuum work.\nSource facts\nPostgreSQL 17 vacuuming protects against transaction-ID and multixact-ID wraparound as well as reclaiming dead-row space. A table can therefore need vacuuming even when it receives few updates or deletes. Aggressive vacuuming freezes eligible old row versions, including pages a normal vacuum may skip. Anti-wraparound autovacuum work can be triggered even when ordinary autovacuum is disabled. The documented age queries measure transactions since the relevant cutoff, rather than elapsed calendar days.\nSource: PostgreSQL 17 — Routine Vacuuming.\nApplicability\nThis applies to PostgreSQL 17 maintenance monitoring. It addresses transaction-age protection and does not establish universal alert thresholds or a safe reason to cancel a running vacuum.\nDSE recommendation\nDSE recommends showing transaction age alongside space and workload indicators in the maintenance review. Assign an owner to investigate old relations, long-lived work, and unsuccessful vacuum progress. Treat a quiet or mostly static table as part of that review rather than excluding it because its file size is stable. Have a qualified administrator evaluate interventions and application impact before changing freeze settings or terminating maintenance. Record the reason for any temporary autovacuum configuration exception.\nVerification\nUse a representative test database to inspect database and relation age, then observe how suitable vacuum work advances the recorded cutoff. Confirm the monitoring explains its units and identifies the oldest objects. Keep maintenance logs and unresolved blockers attached to the operational review.\nOfficial reference\nPostgreSQL 17 — Routine Vacuuming. Reviewed October 15, 2026.",
        "content_markdown": "Review transaction age as well as space when supervising PostgreSQL vacuum work.\n\n## Source facts\n\nPostgreSQL 17 vacuuming protects against transaction-ID and multixact-ID wraparound as well as reclaiming dead-row space. A table can therefore need vacuuming even when it receives few updates or deletes. Aggressive vacuuming freezes eligible old row versions, including pages a normal vacuum may skip. Anti-wraparound autovacuum work can be triggered even when ordinary autovacuum is disabled. The documented age queries measure transactions since the relevant cutoff, rather than elapsed calendar days.\n\nSource: [PostgreSQL 17 — Routine Vacuuming](https://www.postgresql.org/docs/17/routine-vacuuming.html).\n\n## Applicability\n\nThis applies to PostgreSQL 17 maintenance monitoring. It addresses transaction-age protection and does not establish universal alert thresholds or a safe reason to cancel a running vacuum.\n\n## DSE recommendation\n\nDSE recommends showing transaction age alongside space and workload indicators in the maintenance review. Assign an owner to investigate old relations, long-lived work, and unsuccessful vacuum progress. Treat a quiet or mostly static table as part of that review rather than excluding it because its file size is stable. Have a qualified administrator evaluate interventions and application impact before changing freeze settings or terminating maintenance. Record the reason for any temporary autovacuum configuration exception.\n\n## Verification\n\nUse a representative test database to inspect database and relation age, then observe how suitable vacuum work advances the recorded cutoff. Confirm the monitoring explains its units and identifies the oldest objects. Keep maintenance logs and unresolved blockers attached to the operational review.\n\n## Official reference\n\n[PostgreSQL 17 — Routine Vacuuming](https://www.postgresql.org/docs/17/routine-vacuuming.html). Reviewed October 15, 2026."
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