ria-label="Direct link to TTL Granularity" title="Direct link to TTL Granularity">​</a></h3>
<p>Each feature group required an <strong>expiry timestamp</strong>, so that <strong>all features within it expired together</strong>—preserving consistency during reads.</p>
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<h3 class="anchor anchorWithStickyNavbar_LWe7" id="extensibility-across-databases">Extensibility Across Databases<a href="#extensibility-across-databases" class="hash-link" aria-label="Direct link to Extensibility Across Database