delta/mariadb-git.git - github.com: MariaDB/server.git

	Commit message (Collapse)	Author	Age	Files	Lines
*	MDEV-23497 Make ROW_FORMAT=COMPRESSED read-only by default	Marko Mäkelä	2020-11-11	1	-0/+4
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	Let us introduce the parameter innodb_read_only_compressed that is ON by default, making any ROW_FORMAT=COMPRESSED tables read-only. I developed the ROW_FORMAT=COMPRESSED format based on Heikki Tuuri's rough design between 2005 and 2008. It might have been a good idea back then, but no proper benchmarks were ever run to validate the design or the implementation. The format has been more or less obsolete for years. It limits innodb_page_size to 16384 bytes (the default), and instant ALTER TABLE is not supported. This is the first step towards deprecating and removing write support for ROW_FORMAT=COMPRESSED tables.
*	MDEV-13134 Introduce ALTER TABLE attributes ALGORITHM=NOCOPY and ↵	Thirunarayanan Balathandayuthapani	2018-05-07	1	-0/+11
	ALGORITHM=INSTANT Introduced new alter algorithm type called NOCOPY & INSTANT for inplace alter operation. NOCOPY - Algorithm refuses any alter operation that would rebuild the clustered index. It is a subset of INPLACE algorithm. INSTANT - Algorithm allow any alter operation that would modify only meta data. It is a subset of NOCOPY algorithm. Introduce new variable called alter_algorithm. The values are DEFAULT(0), COPY(1), INPLACE(2), NOCOPY(3), INSTANT(4) Message to deprecate old_alter_table variable and make it alias for alter_algorithm variable. alter_algorithm variable for slave is always set to default.