Comment 1 for bug 622406

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Yasufumi Kinoshita (yasufumi-kinoshita) wrote :

INNODB_SYS_TABLES is raw dump of the intrenal table "SYS_TABLES".
If it is as it is in the table, it is not bug.

I think SYS_TABLES doesn't have information of "number of columns" at all.
("N_COLS" seems to be used only for row format flag)
Because keeping it is bad for performance, it is transactional database.
What is the "number of columns" at the time?
Should it be updated for each INSERT/DELETE and conflict all INSERT and DELETE for the table?