Parquet is a columnar storage format that supports nested data. This provides the java implementation.
'com.twitter:parquet-encoding:1.3.0'
<dependency>
<groupId>com.twitter</groupId>
<artifactId>parquet-encoding</artifactId>
<version>1.3.0</version>
</dependency>
<dependency org="com.twitter" name="parquet-encoding" rev="1.3.0"/>
"com.twitter", "parquet-encoding", "1.3.0"