MDEV-13953 mariadb-10.2.9/storage/innobase/row/row0import.cc:3602: possible cut'n'paste error ?
MDEV-13955 mariadb-10.2.9/sql/log_event.cc:7671: possible wrong operator ?

update engine tests

functions.

There is no reason to export IO this functionality from server, if it can
be easily implemented with CRT.

Note: for the sake of compatibility, we do not use _open() on Windows,
but open file with CreateFile, with FILE_SHARE_DELETE flag,
so it can be renamed or deleted when open. Also atomic append flag is used.

Fixes some warnings.

fix --ps-protocol

move binlog-dependent part (~6%) into a separate file, to be able
to run the rest of multi_update with embedded server

(include/have_log_bin.inc disables embedded)

fil_space_extend_must_retry(): If the table is being truncated,
do not call fil_flush_low(). The operation is covered by the
truncate log. File extension during TRUNCATE only occurs
if there are many indexes on the table. With smaller innodb_page_size,
the file extension occurs already with fewer indexes on the table.

This is error-prone and causes warnings on Windows

wrep_sst_common and wsrep_sst_xtrabackup-v2 bugfixes to read sst parameters from configs

Fixing the data type for the "fuzzydate" parameter to
Item_func_hybrid_field_type::date_op() from uint to ulonglong,
for consistency with Item::get_date().

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.

Fix truncation warning on Windows, in a populart header, with a cast.

Changing datatypes for:
- Item_spvar_args::m_table
- sp_rcontext::m_var_table
- return value of create_virtual_tmp_table()
from TABLE* to Virtual_tmp_table*

Advantages:
- Stricter data type control
- Removing the duplicate code (a loop with free_blobs)
  from destructors ~sp_rcontext() and ~Item_spvar_args(),
  using "delete m_(var_)table" in both instead.
- Using Virtual_tmp_table::delete makes the code call Field::delete,
  which calls TRASH() for the freed fields,
  which is good for valgrind test runs.

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.

This is regression caused by patch of mdev-10767.

1st problem :- mktmp is invoked without '-t' or specifing tmp directory.
2nd problem :- Since eval_log_error redirect stderr to stdout  '2>' will
return nothing. and hence $wr_logfile will be empty.

Patch Credit:- Andrii Nikitin

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.

wrep_sst_common: Setting "-c ''" for my_print_defaults just takes no values from config at all. $MY_PRINT_DEFAULTS is already set at the top of the script to have --defaults-file and --defaults-extra-file. If WSREP_SST_OPT_CONF if set to "--defaults-file=/etc/my.cnf --defaults-extra-file=/etc/my.extra.cnf", then "my_print_defaults -c "" --defaults-file=/etc/my.cnf" succeeds, but if WSREP_SST_OPT_CONF is empty - no default values are taken at all.
wsrep_sst_xtrabackup-v2: innobackupex does not support --defaults-extra-file, so ${WSREP_SST_OPT_CONF} cannot be used as an argument, it has been changed to ${WSREP_SST_OPT_DEFAULT}. Removed --defaults-file= from INNOMOVE line, because WSREP_SST_OPT_CONF already includes it (INNOBACKUP was fine, INNOMOVE - not).

- Implementing stricter data type control for Item_long_func descendants
- Cleanup: renaming Type_handler::can_return_str_ascii() to can_return_text()
  (a better name).

warning