The function dict_disable_redo_if_temporary() was supposed to
disable redo logging for temporary tables. It was invoked
unnecessarily for two read-only operations:
row_undo_search_clust_to_pcur() and
dict_stats_update_transient_for_index().

When a table is not temporary and not in the system tablespace,
the tablespace should be flagged for MLOG_FILE_NAME logging.
We do not need this overhead for temporary tables. Therefore,
either mtr_t::set_log_mode() or mtr_t::set_named_space() should
be invoked.

dict_table_t::is_temporary(): Determine if a table is temporary.

dict_table_is_temporary(): Redefined as a macro wrapper for
dict_table_t::is_temporary().

dict_disable_redo_if_temporary(): Remove.

The method handlerton::replace_native_transaction_in_thd was added
into MySQL 5.7 in WL#6860, Binlogging XA-prepared transaction.
In MariaDB we do not have that change yet.

The field dict_table_t::big_rows was only used for determining if
the adaptive hash index should be used when the internal InnoDB SQL
parser is used. That parser is only used for modifying the InnoDB
data dictionary, updating persistent tables, and for fulltext indexes.

btr_cur_pessimistic_delete(): Discard a possible record lock also in
the case when the record was the only one in the page. Failure to
do this would corrupt the record lock data structures in a partial
rollback (ROLLBACK TO SAVEPOINT or rolling back a row operation due
to some error, such as a duplicate key in a unique secondary index).

MySQL 5.7 allows the creation of InnoDB tables in a user-created
tablespace, but MariaDB does not. Remove the remaining references.

This is a non-functional change.

warning

Only microsoft compiler, which can be correctly
tested with #ifdef _MSC_VER) has __declspec(noreturn)

Prior to this patch, creating or even opening any innodb file in 10.2
would set a sparse flag on file. The file extension was done by setting
end of file, without writing zeros. This technique is fine, however
due to sparsedness, it created a hole at the end of the file, which
lead to much higher fragmentation subsequently.

The fix is only to use sparse flag for compressed tables, where holes
are actually wanted, but not for normal tables.

'version' variables.

The warnings occur on Windows build, yet they are also are valid
on 32bit Unix.

Fix is to consistently use 64bit integer on all platforms.

some ulonglong variables were printed as %lu

upd_field_set_field_no(): Remove the unused parameter trx, and
remove a debug message. In debug builds, the out-of-bounds access
would still be caught by dict_index_get_nth_col().

trx_undo_update_rec_get_update(): Remove the unnecessary parameter trx.

The InnoDB native partitioning (ha_innopart) is a MySQL 5.7
code refactoring exercise that was not merged to MariaDB.

Patch contibuted by Gordon Fisher. Thank you for your contribution!

Fixes some warnings in popular headers.

- Fix win64 pointer truncation warnings
(usually coming from misusing 0x%lx and long cast in DBUG)

- Also fix printf-format warnings

Make the above mentioned warnings fatal.

- fix pthread_join on Windows to set return value.

After review cleanup.

- The line was accidently removed by dd8474b1
- The effect of the missing test was just a few extra malloc when creating
  internal temporary tables. Nothing critical, but better got get fixed.

Update.rdiff fle

Also, introduce my_popen()/my_fgets() wrapper function for popen()/fgets()
in mysqltest to workaround a popen() bug in Windows C runtime,
mentioned in MDEV-9409

This workaround was used previously for "exec". From now on, it is also
used are used also for "perl" snippets.

reapply 6192f0bf

TSAN warnings count decreased from 206 to 195

fix some old bad merge

avoid a function call for a commonly used one-liner.
followup for 0627929f

remove copy-pasted code, fix meaningless comparison.
followup for ea2162b6

Problem:- This crash happens because of thd = NULL , and while checking
for wsrep_on , we no longer check for thd != NULL (MDEV-7955). So this
problem is regression of MDEV-7955. However this patch not only solves
this regression , It solves all regression caused by MDEV-7955 patch.

To get all possible cases when thd can be null , assert(thd)/
assert(trx->mysql_thd) is place just before all wsrep_on and innodb test
suite is run. And the assert which caused failure are removed with a physical
check for thd != NULL. Rest assert are removed. Hopefully this method will
remove all current/potential regression of MDEV-7955.

- Clean up formulas and comments for host_cache_size and back_log
- Added test of autoset (for host_cache_size)
- Marked open_files_limit as auto_set

Ensure that no adaptive hash index exists for any system tables,
so that the blocked TRUNCATE TABLE t1 will not block the concurrent
TRUNCATE TABLE t2.