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breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">PostgreSQL</span><meta itemprop="position" content="3"></li></ul></nav><div class="tocCollapsible__x4T theme-doc-toc-mobile tocMobile_uez7"><button type="button" class="clean-btn tocCollapsibleButton_I4hU">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>PostgreSQL 16</h1></header>
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<div class="theme-admonition theme-admonition-tip admonition_k1o9 alert alert--success"><div class="admonitionHeading_IAS2"><span class="admonitionIcon_lvl3"><svg viewBox="0 0 12 16"><path fill-rule="evenodd" d="M6.5 0C3.48 0 1 2.19 1 5c0 .92.55 2.25 1 3 1.34 2.25 1.78 2.78 2 4v1h5v-1c.22-1.22.66-1.75 2-4 .45-.75 1-2.08 1-3 0-2.81-2.48-5-5.5-5zm3.64 7.48c-.25.44-.47.8-.67 1.11-.86 1.41-1.25 2.06-1.45 3.23-.02.05-.02.11-.02.17H5c0-.06 0-.13-.02-.17-.2-1.17-.59-1.83-1.45-3.23-.2-.31-.42-.67-.67-1.11C2.44 6.78 2 5.65 2 5c0-2.2 2.02-4 4.5-4 1.22 0 2.36.42 3.22 1.19C10.55 2.94 11 3.94 11 5c0 .66-.44 1.78-.86 2.48zM4 14h5c-.23 1.14-1.3 2-2.5 2s-2.27-.86-2.5-2z"></path></svg></span>Tip</div><div class="admonitionContent_bkhY"><ul>
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<li>Operating System: Ubuntu 20.04 LTS</li>
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<li>Server Requirements: Minimum 2 cores 4GB RAM, Recommended 4 cores 8GB RAM</li>
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</ul></div></div>
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<h2 class="anchor anchorWithStickyNavbar_mZwI" id="installation">Installation<a href="#installation" class="hash-link" aria-label="Direct link to Installation" title="Direct link to Installation"></a></h2>
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<div class="language-bash codeBlockContainer_rCvc theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_T37s"><pre tabindex="0" class="prism-code language-bash codeBlock_swWw thin-scrollbar" style="color:#393A34;background-color:#f6f8fa"><code class="codeBlockLines_aEeN"><span class="token-line" style="color:#393A34"><span class="token plain"># ubuntu</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># https://www.postgresql.org/download/linux/ubuntu/</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">sudo apt install -y postgresql-common</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">sudo /usr/share/postgresql-common/pgdg/apt.postgresql.org.sh</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Import the repository signing key:</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">sudo apt install curl ca-certificates</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">sudo install -d /usr/share/postgresql-common/pgdg</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">sudo curl -o /usr/share/postgresql-common/pgdg/apt.postgresql.org.asc --fail https://www.postgresql.org/media/keys/ACCC4CF8.asc</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Create the repository configuration file:</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">sudo sh -c 'echo "deb [signed-by=/usr/share/postgresql-common/pgdg/apt.postgresql.org.asc] https://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Update the package lists:</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">sudo apt update</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Install the latest version of PostgreSQL:</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># If you want a specific version, use 'postgresql-16' or similar instead of 'postgresql'</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">sudo apt -y install postgresql</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Check version</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">psql --version</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Check if running</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">lsof -i:5432</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># If you need local client to connect to cloud service, open port 5432 in Tencent Cloud or Alibaba Cloud firewall</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Find configuration file path</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">locate postgresql.conf</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># /etc/postgresql/16/main/postgresql.conf</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Download all configuration files from /etc/postgresql/16/main/ for easier modification</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Enable external access, modify postgresql.conf file</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">listen_addresses = '*'</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Modify pg_hba.conf file, add the following at the end:</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">host all all 0.0.0.0/0 scram-sha-256</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Change password</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">sudo -u postgres psql</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">ALTER USER postgres WITH PASSWORD 'password'; # Change password https://suijimimashengcheng.bmcx.com/</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Press \q to exit</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Install pgvector</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">apt install postgresql-16-pgvector</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Upload modified configuration files to server, then restart</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">service postgresql restart</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># service postgresql stop</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Check port 5432</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">lsof -i:5432</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Or</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">netstat -tunlp | grep 5432</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Use pgadmin client, desktop client remote connection</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Create database bytedesk_im</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"># Add vector extension to the newly created database bytedesk_im (right click extensions, create->General->name: vector)</span><br></span></code></pre><div class="buttonGroup_Rp0T"><button type="button" aria-label="Copy code to clipboard" title="Copy" class="clean-btn"><span class="copyButtonIcons_d6OK" aria-hidden="true"><svg viewBox="0 0 24 24" class="copyButtonIcon_tfNw"><path fill="currentColor" d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg viewBox="0 0 24 24" class="copyButtonSuccessIcon_jBa9"><path fill="currentColor" d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div></div><footer class="theme-doc-footer 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