https://vchord.pgsty.com/docs/about/ Recent content in About Vchord & vchord.pgsty.com on Vchord Hugo en-US Tue, 03 Nov 2026 01:15:06 +0800 https://vchord.pgsty.com/docs/about/license/ Mon, 01 Jan 0001 00:00:00 +0000 https://vchord.pgsty.com/docs/about/license/ <h2 id="software-license-pgstyvchord--pgstyvchord_bm25">Software License (<code>pgsty/vchord</code> &amp; <code>pgsty/vchord_bm25</code>) </h2> <p><a href="https://github.com/pgsty/vchord"><code>pgsty/vchord</code></a> and <a href="https://github.com/pgsty/vchord_bm25"><code>pgsty/vchord_bm25</code></a> are licensed under the <strong><a href="https://www.gnu.org/licenses/agpl-3.0.html">GNU Affero General Public License v3.0 (<code>AGPL-3.0-only</code>)</a></strong>:</p> <ul> <li><strong><a href="https://github.com/pgsty/vchord/blob/main/LICENSE"><code>pgsty/vchord</code> <code>LICENSE</code></a></strong></li> <li><strong><a href="https://github.com/pgsty/vchord_bm25/blob/main/LICENSE"><code>pgsty/vchord_bm25</code> <code>LICENSE</code></a></strong></li> </ul> <h2 id="software-license-pgstypg_tokenizer">Software License (<code>pgsty/pg_tokenizer</code>) </h2> <p><a href="https://github.com/pgsty/pg_tokenizer"><code>pgsty/pg_tokenizer</code></a> is licensed under the <strong><a href="https://www.apache.org/licenses/LICENSE-2.0">Apache License 2.0 (<code>Apache-2.0</code>)</a></strong>:</p> <ul> <li><strong><a href="https://github.com/pgsty/pg_tokenizer/blob/main/LICENSE"><code>pgsty/pg_tokenizer</code> <code>LICENSE</code></a></strong></li> </ul> <hr> <h2 id="documentation-license-vchordpgstycom">Documentation License (<code>vchord.pgsty.com</code>) </h2> <p>The documentation and site adaptations in <a href="https://github.com/pgsty/vchord.pgsty.com"><code>pgsty/vchord.pgsty.com</code></a> are licensed under the <strong><a href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License (<code>CC-BY-4.0</code>)</a></strong>, with upstream materials adapted from <a href="https://github.com/tensorchord/pgvecto.rs-docs"><code>tensorchord/pgvecto.rs-docs</code></a> and <a href="https://blog.vectorchord.ai/"><code>blog.vectorchord.ai</code></a>.</p> https://vchord.pgsty.com/docs/about/attribution/ Mon, 01 Jan 0001 00:00:00 +0000 https://vchord.pgsty.com/docs/about/attribution/ <p><code>vchord.pgsty.com</code> is maintained by the <a href="https://pigsty.io/">PGSTY</a> community to provide a comprehensive, searchable documentation and engineering reference for the <strong>Vchord</strong> extension suite (<strong><code>vchord</code></strong>, <strong><code>vchord_bm25</code></strong>, and <strong><code>pg_tokenizer</code></strong>).</p> <h2 id="stewardship">Stewardship &amp; Maintenance Statement </h2> <p><strong>TensorChord Inc.</strong>, the original creator of <code>VectorChord</code>, <code>VectorChord-bm25</code>, and <code>pg_tokenizer.rs</code>, has wound down operations and ceased active maintenance of the upstream repositories. At the request of the original authors, the <strong><a href="https://pigsty.io/">PGSTY</a></strong> community took over maintenance of all three extensions:</p> https://vchord.pgsty.com/docs/about/trademark/ Mon, 01 Jan 0001 00:00:00 +0000 https://vchord.pgsty.com/docs/about/trademark/ <h2 id="statement-of-independence">Statement of Independence </h2> <p><code>pgsty/vchord</code>, <code>pgsty/vchord_bm25</code>, <code>pgsty/pg_tokenizer</code>, and <code>vchord.pgsty.com</code> are maintained by the <a href="https://pigsty.io/">Pigsty</a> community. None of these repositories or websites is affiliated with, endorsed by, or sponsored by <strong>TensorChord Inc.</strong></p> <h2 id="third-party-trademarks">Third-Party Trademarks </h2> <ul> <li><strong>VectorChord</strong>, <strong>pgvecto.rs</strong>, and <strong>TensorChord</strong> are names and marks associated with TensorChord Inc. They are used on this site solely for nominative fair use to identify the upstream open-source projects, extension names (<code>vchord</code>, <code>vchord_bm25</code>, <code>pg_tokenizer</code>, <code>vectors</code>), SQL access methods (<code>vchordrq</code>, <code>vchordg</code>, <code>bm25</code>), and historical engineering articles.</li> <li><strong>PostgreSQL</strong> and <strong>Postgres</strong> are registered trademarks of the PostgreSQL Community Association of Canada.</li> <li><strong>Linux</strong> is the registered trademark of Linus Torvalds in the U.S. and other countries.</li> <li><strong>Amazon Web Services (AWS)</strong>, <strong>Cloudflare</strong>, <strong>Docker</strong>, and other product or company names referenced in benchmarks and deployment guides are trademarks of their respective owners.</li> </ul>