failed in compare_table_with_partition().
However, this execution should not be allowed since executing 'exchange partition' requires the identical structure of the two tables.
To fix the problem, I deleted the assertion code and added code that returns an error that indicates tables have different definitions.
MDEV-28537 Unused or useless InnoDB counters num_index_pages_written, num_non_index_pages_written
The counters were added in commit 5e55d1ced52c52fb2f0508e1346059901a85960f
and any code to update them was
inadvertently removed in commit 2e814d4702d71a04388386a9f591d14a35980bfe
when applying InnoDB changes from MySQL 5.7.
Let us remove these counters that never reported anything useful. If such
statistics are really needed in a special case, they can be obtained by
instrumenting the code by some means, such as eBPF or a source code patch.
- In best_extension_by_limited_search(), do not check for
"(remaining_tables & real_table_bit)", it is guaranteed to be true.
Make it an assert.
- In (!idx || check_interleaving_with_nj())", remove the !idx part.
This check made sense only in the original version of this function.
- "micro optimization" in check_interleaving_with_nj().
can't use Item_default_value as a field if it's an expression OR a blob
Fixed failing main.default on Windows
(to trigger an assert the test needed a debug build without
safemalloc, as 0xa5 happened to have the important bit set "correctly")