Chapter 4 – Compression

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Compression Types


The table above identifies the supported compression encodings and the data types that support the encoding. Compression reduces the size of data when it is stored, and it is a column-level operation. Compression conserves storage space and reduces the size of data that is read from storage, which will then reduce the amount of disk I/O, thus improving query performance. By default, Actian Matrix stores data in its raw, uncompressed format, but you can apply a compression type, or encoding, to the columns ...

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