Viewing all changes in revision 2502.1195.28.
- Committer: Marko Mäkelä
- Date: 2012-08-16 14:45:39 UTC
- mto: (2502.1198.2 mysql-5.1) (2643.137.22 5.1-merge-all)
- mto: This revision was merged to the branch mainline in revision 3182.
- Revision ID: marko.makela@oracle.com-20120816144539-t056ogwqkwm33wgu
Bug#12595091 POSSIBLY INVALID ASSERTION IN BTR_CUR_PESSIMISTIC_UPDATE()
Facebook got a case where the page compresses really well so that
btr_cur_optimistic_update() returns DB_UNDERFLOW, but when a record
gets updated, the compression rate radically changes so that
btr_cur_insert_if_possible() can not insert in place despite
reorganizing/recompressing the page, leading to the assertion failing.
rb:1220 approved by Sunny Bains
Facebook got a case where the page compresses really well so that
btr_cur_optimistic_update() returns DB_UNDERFLOW, but when a record
gets updated, the compression rate radically changes so that
btr_cur_insert_if_possible() can not insert in place despite
reorganizing/recompressing the page, leading to the assertion failing.
rb:1220 approved by Sunny Bains
- files modified:
- storage/innodb_plugin/ChangeLog
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