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| author | Sergey Vojtovich <svoj@mariadb.org> | 2017-04-24 17:54:18 +0400 |
|---|---|---|
| committer | Sergey Vojtovich <svoj@mariadb.org> | 2017-08-31 15:44:17 +0400 |
| commit | fdc47792354c820aa4a8542d7c00d434424a63fb (patch) | |
| tree | 0a0cf61b7ef8fe0dc7008a32155df5fa31f0ed7f /include/mysql.h.pp | |
| parent | dd4e9cddeddaa391765ca259d95c66f3cb5f9b75 (diff) | |
| download | mariadb-git-fdc47792354c820aa4a8542d7c00d434424a63fb.tar.gz | |
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.
Diffstat (limited to 'include/mysql.h.pp')
| -rw-r--r-- | include/mysql.h.pp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/mysql.h.pp b/include/mysql.h.pp index d061df71944..4a196b3c772 100644 --- a/include/mysql.h.pp +++ b/include/mysql.h.pp @@ -66,6 +66,8 @@ enum enum_field_types { MYSQL_TYPE_DECIMAL, MYSQL_TYPE_TINY, MYSQL_TYPE_TIMESTAMP2, MYSQL_TYPE_DATETIME2, MYSQL_TYPE_TIME2, + MYSQL_TYPE_BLOB_COMPRESSED= 140, + MYSQL_TYPE_VARCHAR_COMPRESSED= 141, MYSQL_TYPE_NEWDECIMAL=246, MYSQL_TYPE_ENUM=247, MYSQL_TYPE_SET=248, |