Jan Lindström a4fa940bad MDEV-11336: Enable defragmentation on 10.2 when tests pass ...

Problem was that we could take page latches on different
order than wat is entitled with SX-lock. To follow the
latching order defined in WL#6326, acquire index->lock X-latch.
This entitles us to acquire page latches in any order for the index.

btr0btr.cc
	Document latch rules before and after MariaDB 10.2.2

sync0rw.cc
	Document latch compatibility rules better.

btr_defragment_merge_pages
	Fix parameter value.

btr_defragment_thread
	Acquire X-lock to dict_index_t::lock before restoring
	cursor position and continuing defragmentation.

ha_innobase::optimize
	Restore defragment feature.

Testing
	Add GIS-index and FT-index to table being defragmented.

	Defragmentation is not done to GIS-indexes and FT auxiliary
	tables.

2017-10-12 12:56:20 +03:00

3.9 KiB

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