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layout: default
title: Apache ORC • High-Performance Columnar Storage for Hadoop
overview: true
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<section class="intro">
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    <div class="unit whole center-on-mobiles">
      <p class="first">the smallest, fastest columnar storage for Hadoop
          workloads.</p>
    </div>
  </div>
</section>
<section class="features">
  <div class="grid">
    <div class="unit one-third">
      <h2>ACID Support</h2>
      <p>Includes support for ACID transactions and snapshot
         isolation</p>
      <a href="/docs/acid.html">ACID support &rarr;</a>
    </div>
    <div class="unit one-third">
      <h2>Built-in Indexes</h2>
      <p>Jump to the right row with indexes including minimum, maximum,
	 and bloom filters for each column.</p>
      <a href="/docs/indexes.html">ORC's indexes &rarr;</a>
    </div>
    <div class="unit one-third">
      <h2>Complex Types</h2>
      <p>Supports all of Hive's types including the compound types:
         structs, lists, maps, and unions</p>
      <a href="/docs/types.html">ORC's types &rarr;</a>
    </div>
    <div class="clear"></div>
  </div>
</section>