mariadb/sql/share
Sergey Vojtovich fdc4779235 MDEV-11371 - column compression
Storage engine independent support for column compression.

TINYBLOB, BLOB, MEDIUMBLOB, LONGBLOB, TINYTEXT, TEXT, MEDIUMTEXT, LONGTEXT,
VARCHAR and VARBINARY columns can be compressed.

New COMPRESSED column attribute added:
COMPRESSED[=<compression_method>]

System variables added:
column_compression_threshold
column_compression_zlib_level
column_compression_zlib_strategy
column_compression_zlib_wrap

Status variables added:
Column_compressions
Column_decompressions

Limitations:
- the only supported method currently is zlib
- CSV storage engine stores data uncompressed on-disk even if COMPRESSED
  attribute is present
- it is not possible to create indexes over compressed columns.
2017-08-31 15:44:17 +04:00
..
charsets MDEV-9711 NO PAD collations 2016-09-06 12:50:02 +04:00
CMakeLists.txt Support for server error messages in Hindi. 2017-08-03 15:40:23 +04:00
errmsg-utf8.txt MDEV-11371 - column compression 2017-08-31 15:44:17 +04:00