Marko Mäkelä aed6b87145 Bug#14636528 INNODB CHANGE BUFFERING IS NOT ENTIRELY CRASH-SAFE ... Delete-mark change buffer records when resorting to a pessimistic delete from the change buffer B-tree. Skip delete-marked records in the change buffer merge and when estimating whether an operation can be buffered. Without this fix, we could try to apply the same buffered changes multiple times if the server was killed at the right moment. In MySQL 5.5 and later: ibuf_get_volume_buffered_count_func(): Ignore delete-marked (already processed) records. ibuf_delete_rec(): Add a crash point before optimistic delete. If the optimistic delete fails, flag the record processed before mtr_commit(). ibuf_merge_or_delete_for_page(): Ignore delete-marked (already processed) records. Backport to 5.1: Rename btr_cur_del_unmark_for_ibuf() to btr_cur_set_deleted_flag_for_ibuf() and add a parameter. rb:1307 approved by Jimmy Yang		2012-09-19 22:35:38 +03:00
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ibuf0ibuf.c	Bug#14636528 INNODB CHANGE BUFFERING IS NOT ENTIRELY CRASH-SAFE	2012-09-19 22:35:38 +03:00