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      <a name="innodb-compression">
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      17.9 InnoDB Table and Page Compression
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    <dt>
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      <a href="innodb-table-compression.html">
       17.9.1 InnoDB Table Compression
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     <span class="section">
      <a href="innodb-page-compression.html">
       17.9.2 InnoDB Page Compression
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  <p>
   This section provides information about the
   <code class="literal">
    InnoDB
   </code>
   table compression and
   <code class="literal">
    InnoDB
   </code>
   page compression features. The page
    compression feature is also referred to as
   <a class="link" href="glossary.html#glos_transparent_page_compression" title="transparent page compression">
    transparent page
    compression
   </a>
   .
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  <p>
   Using the compression features of
   <code class="literal">
    InnoDB
   </code>
   , you can
    create tables where the data is stored in compressed form.
    Compression can help to improve both raw performance and
    scalability. The compression means less data is transferred between
    disk and memory, and takes up less space on disk and in memory. The
    benefits are amplified for tables with
   <a class="link" href="glossary.html#glos_secondary_index" title="secondary index">
    secondary indexes
   </a>
   ,
    because index data is compressed also. Compression can be especially
    important for
   <a class="link" href="glossary.html#glos_ssd" title="SSD">
    SSD
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   storage devices,
    because they tend to have lower capacity than
   <a class="link" href="glossary.html#glos_hdd" title="HDD">
    HDD
   </a>
   devices.
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