| import{_ as r,r as o,o as l,c as i,b as e,d as t,a as d,e as n}from"./app-Bx8hKGcu.js";const s={},c=n('<h1 id="quick-start" tabindex="-1"><a class="header-anchor" href="#quick-start"><span>Quick Start</span></a></h1><h2 id="priority-of-operators" tabindex="-1"><a class="header-anchor" href="#priority-of-operators"><span>Priority of Operators</span></a></h2><table><thead><tr><th style="text-align:center;">priority</th><th style="text-align:left;">operator</th><th style="text-align:left;">meaning</th></tr></thead><tbody><tr><td style="text-align:center;">1</td><td style="text-align:left;"><code>-</code></td><td style="text-align:left;">Unary operator negative</td></tr><tr><td style="text-align:center;">1</td><td style="text-align:left;"><code>+</code></td><td style="text-align:left;">Unary operator positive</td></tr><tr><td style="text-align:center;">1</td><td style="text-align:left;"><code>!</code></td><td style="text-align:left;">Unary operator negation</td></tr><tr><td style="text-align:center;">2</td><td style="text-align:left;"><code>*</code></td><td style="text-align:left;">Binary operator multiply</td></tr><tr><td style="text-align:center;">2</td><td style="text-align:left;"><code>/</code></td><td style="text-align:left;">Binary operator division</td></tr><tr><td style="text-align:center;">2</td><td style="text-align:left;"><code>%</code></td><td style="text-align:left;">Binary operator remainder</td></tr><tr><td style="text-align:center;">3</td><td style="text-align:left;"><code>+</code></td><td style="text-align:left;">Binary operator add</td></tr><tr><td style="text-align:center;">3</td><td style="text-align:left;"><code>-</code></td><td style="text-align:left;">Binary operator minus</td></tr><tr><td style="text-align:center;">4</td><td style="text-align:left;"><code>></code></td><td style="text-align:left;">Binary compare operator greater than</td></tr><tr><td style="text-align:center;">4</td><td style="text-align:left;"><code>>=</code></td><td style="text-align:left;">Binary compare operator greater or equal to</td></tr><tr><td style="text-align:center;">4</td><td style="text-align:left;"><code><</code></td><td style="text-align:left;">Binary compare operator less than</td></tr><tr><td style="text-align:center;">4</td><td style="text-align:left;"><code><=</code></td><td style="text-align:left;">Binary compare operator less or equal to</td></tr><tr><td style="text-align:center;">4</td><td style="text-align:left;"><code>==</code></td><td style="text-align:left;">Binary compare operator equal to</td></tr><tr><td style="text-align:center;">4</td><td style="text-align:left;"><code>!=</code>/<code><></code></td><td style="text-align:left;">Binary compare operator non-equal to</td></tr><tr><td style="text-align:center;">5</td><td style="text-align:left;"><code>REGEXP</code></td><td style="text-align:left;"><code>REGEXP</code> operator</td></tr><tr><td style="text-align:center;">5</td><td style="text-align:left;"><code>LIKE</code></td><td style="text-align:left;"><code>LIKE</code> operator</td></tr><tr><td style="text-align:center;">6</td><td style="text-align:left;"><code>IN</code></td><td style="text-align:left;"><code>IN</code> operator</td></tr><tr><td style="text-align:center;">7</td><td style="text-align:left;"><code>and</code>/<code>&</code>/<code>&&</code></td><td style="text-align:left;">Binary logic operator and</td></tr><tr><td style="text-align:center;">8</td><td style="text-align:left;"><code>or</code>/ | / ||</td><td style="text-align:left;">Binary logic operator or</td></tr></tbody></table><h2 id="about" tabindex="-1"><a class="header-anchor" href="#about"><span>About</span></a></h2><p>For applications based on time series data, data quality is vital.<br><strong>UDF Library</strong> is IoTDB User Defined Functions (UDF) about data quality, including data profiling, data quality evalution and data repairing.<br> It effectively meets the demand for data quality in the industrial field.</p><h2 id="quick-start-1" tabindex="-1"><a class="header-anchor" href="#quick-start-1"><span>Quick Start</span></a></h2><ol><li>Download the JAR with all dependencies and the script of registering UDF.</li><li>Copy the JAR package to <code>ext\\udf</code> under the directory of IoTDB system (Please put JAR to this directory of all DataNodes if you use Cluster).</li><li>Run <code>sbin\\start-server.bat</code> (for Windows) or <code>sbin\\start-server.sh</code> (for Linux or MacOS) to start IoTDB server.</li><li>Copy the script to the directory of IoTDB system (under the root directory, at the same level as <code>sbin</code>), modify the parameters in the script if needed and run it to register UDF.</li></ol><h2 id="download" tabindex="-1"><a class="header-anchor" href="#download"><span>Download</span></a></h2>',8),y={href:"https://thulab.github.io/iotdb-quality/en/Download.html",target:"_blank",rel:"noopener 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