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Displaying posts with tag: SYS_COLUMNS (reset)

How to recover table structure from InnoDB dictionary
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To recover a dropped or corrupt table with Percona Data Recovery Tool for InnoDB you need two things: media with records(ibdata1, *.ibd, disk image, etc.) and a table structure. Indeed, there is no information about the table structure in an InnoDB page. Normally we either recover the structure from .frm files or take it from some old backup.

A new tool sys_parser can recover the table structure from InnoDB dictionary.

Why do we need a new tool anyway? It is absolutely critical to have an accurate table definition to ensure a successful recovery. Even an unnoticeable difference like NULL or NOT NULL can shift all

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