| import{_ as a,C as d,O as o,P as n,ah as i,Q as e,U as t,ai as l,aW as s}from"./framework-62ad666a.js";const c={},y=s('<h1 id="quick-start" tabindex="-1"><a class="header-anchor" href="#quick-start" aria-hidden="true">#</a> Quick Start</h1><h2 id="priority-of-operators" tabindex="-1"><a class="header-anchor" href="#priority-of-operators" aria-hidden="true">#</a> Priority of Operators</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" aria-hidden="true">#</a> About</h2><p>For applications based on time series data, data quality is vital. <strong>UDF Library</strong> is IoTDB User Defined Functions (UDF) about data quality, including data profiling, data quality evalution and data repairing. 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" aria-hidden="true">#</a> Quick Start</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" aria-hidden="true">#</a> Download</h2>',8),h={href:"https://thulab.github.io/iotdb-quality/en/Download.html",target:"_blank",rel:"noopener noreferrer"};function g(f,p){const r=d("ExternalLinkIcon");return o(),n("div",null,[i(` |
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