![]() ![]() Now if a crash occurs at the precise moment when the column data is being transferred, the transfer will not be re-run during crash recovery. The fix corrects the order of operations for moving the column data off the original page and replacing it with a pointer. A related issue was that during such an UPDATE operation, or an INSERT operation that reused a delete-marked record, other transactions could see invalid data for the affected column, regardless of isolation level. Still, the problem could occur with any combination of InnoDB version, file format, and row format. The problem was more common with tables using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED along with the Barracuda file format, particularly with the innodb_file_per_table setting enabled, because page allocation operations are more common as the. The pointer to the new allocated off-page data was not set up until the pages were allocated and written, potentially leading to lost data if the system crashed while the column was being moved out of the page. ![]() Important Change: InnoDB Storage Engine: When a row grew in size due to an UPDATE operation, other (non-updated) columns could be moved to off-page storage so that information about the row still fit within the constraints of the InnoDB page size. yaSSL was upgraded from version 1.7.2 to 2.2.0. InnoDB Storage Engine: A deprecation warning is now issued when -ignore-builtin-innodb is used. ![]()
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