https://tech.ldas.jp/en/tags/sqlite/Recent content in Sqlite on Digital Archive Systems Tech BlogHugoenMon, 06 Apr 2026 22:00:00 +0900https://tech.ldas.jp/en/posts/elasticsearch-to-static-json-and-d1/Mon, 06 Apr 2026 22:00:00 +0900https://tech.ldas.jp/en/posts/elasticsearch-to-static-json-and-d1/<p>I implemented three search backends — Elasticsearch, Cloudflare D1 (SQLite), and Static JSON (in-memory) — for a Japanese text search API running on Cloudflare Pages, and compared their performance.</p> <h2 id="background">Background</h2> <p>I&rsquo;ve been running a full-text search API for classical Japanese texts. The existing setup used an external Elasticsearch cluster, but I wanted to explore alternatives for several reasons:</p> <ul> <li>Reduce external service dependencies</li> <li>Keep everything within Cloudflare Pages</li> <li>The dataset is small (~1,800 records) — a full-text search engine might be overkill</li> </ul> <h2 id="dataset">Dataset</h2> <div class="table-wrapper"> <table> <thead> <tr> <th>Metric</th> <th>Value</th> </tr> </thead> <tbody> <tr> <td>Records</td> <td>1,812</td> </tr> <tr> <td>Total text (UTF-8)</td> <td>~2.5 MB</td> </tr> <tr> <td>Average per record</td> <td>~1.4 KB</td> </tr> </tbody> </table> </div> <p>Each record contains classical Japanese text (a few to ~15 lines), a page number, volume name, and IIIF canvas URL.</p>