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<section id="user-guide">
<h1>User Guide<a class="headerlink" href="#user-guide" title="Link to this heading">#</a></h1>
<p>Apache DataFusion Java is a thin Java binding over the
<a class="reference external" href="https://datafusion.apache.org/">Apache DataFusion</a> query engine. SQL and
DataFrame queries execute in native Rust; results return to the JVM as
<a class="reference external" href="https://arrow.apache.org/">Apache Arrow</a> record batches over the Arrow C
Data Interface.</p>
<p>This guide covers installation, the <code class="docutils literal notranslate"><span class="pre">SessionContext</span></code> and <code class="docutils literal notranslate"><span class="pre">DataFrame</span></code> APIs,
and Parquet ingestion.</p>
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<blockquote>
<div><p>Early development: the API will change between releases. Bug reports
and contributions welcome.</p>
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