Data Access
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Optimized Row Columnar (ORC) Format

ORC-based tables are supported in Hive 0.14.0 and later. These tables can contain more than 1,000 columns.

For more information about how the ORC file format enhances Hive performance, see the Maximizing Storage Resources chapter in the HDP Apache Hive Performance Tuning Guide and LanguageManual ORC on the Apache site.