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Data decompress during query time

  • April 9, 2013
  • 1 reply
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eli_revach
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Hi can you elaborate how vertica decompress the data during query ? Did it need to decompress the entire column file in the case of selecting small part of it or he has the ability a to decompress only partial ?

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    • Anonymous
    • Participating Frequently
    • April 9, 2013
    Vertica has capability to scan compressed data files. In case of selecting the small part entire column is not scanned but the limited part (specific ros containers) are scanned.
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