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<h1 id="functions--page-root">Functions and operators<a class="headerlink" href="#functions--page-root" title="Permalink to this headline">#</a></h1>
<p>This chapter describes the built-in SQL functions and operators supported by
Trino. They allow you to implement complex functionality and behavior of the SQL
executed by Trino operating on the underlying data sources.</p>
<p>If you are looking for a specific function or operator, see the <a class="reference internal" href="functions/list.html"><span class="doc">full
alphabetical list</span></a> or the <a class="reference internal" href="functions/list-by-topic.html"><span class="doc">full list by
topic</span></a>. Using <a class="reference internal" href="sql/show-functions.html"><span class="doc">SHOW FUNCTIONS</span></a> returns a list of all available functions, including
custom functions, with all supported arguments and a short description.</p>
<p>Also see the <a class="reference internal" href="language.html"><span class="doc">SQL data types</span></a>
and the <a class="reference internal" href="sql.html"><span class="doc">SQL statement and syntax reference</span></a>.</p>
<div class="toctree-wrapper compound">
<ul>
<li class="toctree-l1"><a class="reference internal" href="functions/aggregate.html">Aggregate</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/array.html">Array</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/binary.html">Binary</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/bitwise.html">Bitwise</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/color.html">Color</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/comparison.html">Comparison</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/conditional.html">Conditional</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/conversion.html">Conversion</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/datetime.html">Date and time</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/decimal.html">Decimal</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/geospatial.html">Geospatial</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/hyperloglog.html">HyperLogLog</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/ipaddress.html">IP Address</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/json.html">JSON</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/lambda.html">Lambda</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/logical.html">Logical</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/ml.html">Machine learning</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/map.html">Map</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/math.html">Math</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/qdigest.html">Quantile digest</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/regexp.html">Regular expression</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/session.html">Session</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/setdigest.html">Set Digest</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/string.html">String</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/system.html">System</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/teradata.html">Teradata</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/tdigest.html">T-Digest</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/url.html">URL</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/uuid.html">UUID</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/window.html">Window</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/list.html">List of functions and operators</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions/list-by-topic.html">List of functions by topic</a></li>
</ul>
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