[Akonadi] [Bug 460172] New: Very frequent SQL errors dumped in .local/share/akonadi/db_data/mysql.err

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https://bugs.kde.org/show_bug.cgi?id=460172

            Bug ID: 460172
           Summary: Very frequent SQL errors dumped in
                    .local/share/akonadi/db_data/mysql.err
    Classification: Frameworks and Libraries
           Product: Akonadi
           Version: 5.21.1
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: flyos at mailoo.org
  Target Milestone: ---

SUMMARY
Since a few days (sorry, can't be more precise), Akonadi started filling the
SQL error log with the following every few minutes (lots of error each time,
but repeat of those exact two lines) :
[ERROR] Incorrect definition of table mysql.column_stats: expected column
'histogram' at position 10 to have type longblob, found type varbinary(255).
[ERROR] Incorrect definition of table mysql.column_stats: expected column
'hist_type' at position 9 to have type
enum('SINGLE_PREC_HB','DOUBLE_PREC_HB','JSON_HB'), found type
enum('SINGLE_PREC_HB','DOUBLE_PREC_HB').
I first noticed the issue because my hard drive was full, and mysql.err.old was
several Gb large!

STEPS TO REPRODUCE
I don't know how to reproduce, sorry, but the behaviour is the same on two
computers of mine, both installed with openSUSE Tumbleweed, up-to-date, and
both with Akonadi accounts (several IMAP, CalDAV, CardDAV).

SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20221006
KDE Plasma Version: 5.25.5
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.6
Kernel Version: 5.19.10-1-default (64-bit)
Graphics Platform: X11
Processors: 12 × Intel® Core™ i5-10400F CPU @ 2.90GHz
Memory: 15.6 Gio of RAM
Graphics Processor: AMD CAICOS

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