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The Optimized Row Columnar (ORC) file format provides a highly efficient way to store Hive data. It was designed to overcome limitations of the other Hive file formats. Using ORC files improves performance when Hive is reading, writing, and processing data.
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// Hive version 0.11 through 0.14: hive --orcfiledump <location-of-orc-file> // Hive version 1.1.0.15 and later: hive --orcfiledump [-d] [--rowindex <col_ids>] <location-of-orc-file> // Hive version 1.2.0 and later: hive --orcfiledump [-d] [-t] [--rowindex <col_ids>] <location-of-orc-file> // Hive version 1.3.0 and later: hive --orcfiledump [-j] [-p] [-d] [-t] [--rowindex <col_ids>] [--recover] [--skip-dump] [--backup-path <new-path>] <location-of-orc-file-or-directory> |
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The ORC specification has moved to ORC project.