MDEV-31558 adds InnoDB engine stats into the slow query log.
It would be nice to include it into ANALYZE FORMAT=JSON output, too.
User interface: Extra info is printed in ANALYZE FORMAT=JSON output.
It is printed on per-table basis. table.r_engine_stats will is an object with member counters.
In current patch, it looks like this:
Only non-zero members are printed.
mysql-test/include/analyze-format.inc is adjusted to mask the entire contents of r_engine_stats.