Compression Mode
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MariaDB ColumnStore has the ability to compress data and is controlled through a compression mode. This compression mode may be set as a default for the instance or set at the session level.
To set the compression mode at the session level, the following command is used. Once the session has ended, any subsequent session will return to the default for the instance.
set infinidb_compression_type = n
where n is:
- 0) compression is turned off. Any subsequent table create statements run will have compression turned off for that table unless any statement overrides have been performed. Any alter statements run to add a column will have compression turned off for that column unless any statement override has been performed.
- 2) compression is turned on. Any subsequent table create statements run will have compression turned on for that table unless any statement overrides have been performed. Any alter statements run to add a column will have compression turned on for that column unless any statement override has been performed.
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