Make the slave options --replicate-* dynamic variables so that these
options can be changed dynamically while the server is running,
which enables users to modify replication filtering rules without
having to stop and restart the server.

This is accomplished by just requiring that the slave threads are
stopped when these options are set dynamically. Since filtering
rules are only used by the SQL slave thread, setting them while the
thread is not running avoids the need for locking.

Fix race condition in rpl_stop_start_slave. after kill connection, wait until it is gone in processlist

 - Avoid needless load/stores in my_hash_sort_simple due to possible aliasing
 - Avoid expensive Join_plan_state constructor in choose_subquery_plan when no subquery
 - Avoid calling update_virtual_fields for every row when no virtual fields.

No commit message

Fixed lp:947474 "Assertion `table->file->stats.records > 0 || error' failed in join_read_const_table on concurrent SELECT and ALTER, constant Aria table"
Remove Aria state history for drop/rename

mysql-test/suite/maria/r/maria-recovery2.result:
  Updated old (wrong) test result
sql/handler.cc:
  Fixed wrong argument to implict_commit
storage/maria/ha_maria.cc:
  Ensure that we don't use file->trn if THD_TRN is 0. (This means that implict_commit() has been called and the trn object is not ours anymore)
storage/maria/ma_extra.c:
  Remove Aria state history for drop/rename
storage/maria/ma_rename.c:
  Remove Aria state history for rename
storage/maria/ma_state.c:
  More DBUG_PRINT

- Don't use SAFEMALLOC on valgrind builds (slows things down)
- Added back lost option from 5.3: debug-mutex-deadlock-detector
- Flush pages before taking lock mutex (speeds up closing of Aria tables).

BUILD/SETUP.sh:
  - Don't use SAFEMALLOC on valgrind builds (slows things down)
sql/lock.cc:
  Make default argument explicit (improves readability)
sql/mysqld.cc:
  Removed compiler warnings
  Sorted debug options alphabetically
  Added back lost option from 5.3: debug-mutex-deadlock-detector
storage/maria/ma_close.c:
  Flush pages before taking lock mutex (speeds up closing of Aria tables).
storage/maria/ma_open.c:
  More DBUG_PRINT
storage/maria/maria_def.h:
  Better DBUG_PRINT
storage/maria/trnman.c:
  Better DBUG_PRINT

- Mark test components, plugins etc with COMPONENT Test, to get them excluded from the MSI
- Only include debug symbols for client and embedded libs and also
  mysqld.exe and server plugins (so we can still can get a callstack in case of crash)

The rest (all *.pdbs, test components, MTR) can be obtained from the big ZIP distribution, if required.

- do not attempt loading federatedx dynamically - does not work on Windows embedded
- race condition in rpl_start_stop_slave
- fix exclusion rule to catch warning in partition test

The file uses external variables defined in another (C++) source file. Since MSVC mangles variables and not only functions, either variables in question should be extern "C", or  sql_logger should be made C++ for link to succeed.

Fixed by renaming sql_logger.c to sql_logger.cc

        mysys/my_logger.c was moved to sql/sql_logger.c
        Logger service was rewritten with file functions instead of stream, so it
        can handle huge files.

              Added the logger service that provides us with the rotating logs.
              The plugin SQL_ERROR_LOG added. It logs the errors using the 'logger service'
                      for the rotating log files.
              the example record from the log:
                2012-03-09 15:07:29 root[root] @ localhost [] ERROR 1146: Table 'test.xyz' doesn't exist : select * from test.xyz

Do not call, directly or indirectly, SQL_SELECT::test_quick_select()
for derived materialized tables / views when optimizing joins referring
to these tables / views to get cost estimates of materialization.
The current code does not create B-tree indexes for materialized 
derived tables / views. So now it's not possible to get any estimates
for ranges conditions over the results of the materialization.

The function mysql_derived_create() must take into account the fact
that array of the KEY structures specifying the keys over a derived
table / view may be moved after the optimization phase if the
derived table / view  is materialized.

Added 'from_end' as extra parameter to Field::unpack() to detect wrong from data.
Change ha_archive::unpack_row() to detect wrong field lengths.
Replication code changed to detect wrong field information in events.


mysql-test/r/archive.result:
  dded test case for lp:917689
sql/field.cc:
  Added 'from_end' as extra parameter to Field::unpack() to detect wrong from data.
  Removed not used 'unpack_key' functions.
sql/field.h:
  Added 'from_end' as extra parameter to Field::unpack() to detect wrong from data.
  Removed not used 'unpack_key' functions.
  Removed some not needed unpack() functions.
sql/filesort.cc:
  Added buffer end parameter to unpack_addon_fields()
sql/log_event.h:
  Added end of buffer argument to unpack_row()
sql/log_event_old.cc:
  Added end of buffer argument to unpack_row()
sql/log_event_old.h:
  Added end of buffer argument to unpack_row()
sql/records.cc:
  Added buffer end parameter to unpack_addon_fields()
sql/rpl_record.cc:
  Added end of buffer argument to unpack_row()
  Added detection of wrong field information in events
sql/rpl_record.h:
  Added end of buffer argument to unpack_row()
sql/rpl_record_old.cc:
  Added end of buffer argument to unpack_row()
  Added detection of wrong field information in events
sql/rpl_record_old.h:
  Added end of buffer argument to unpack_row()
sql/table.h:
  Added buffer end parameter to unpack()
storage/archive/ha_archive.cc:
  Change ha_archive::unpack_row() to detect wrong field lengths.
  This fixes lp:917689

don't link with libbfd, exec addr2line, if it's available at run time

and collateral changes

- The bug would show up 
   - when using PS (so that we get re-execution)
   - the left_expr of the subquery is a reference to viewname.column_name, so that it crashes
      when one tries to use it without having called fix_fields for it.
   - when using SJ-Materialization, which makes use of sj_subq_pred->left_expr expression

- The fix is to have setup_conds() fix sj_subq_pred->left_expr for semi-join nests it finds.

https://mariadb.atlassian.net/browse/MDEV-28
  
This task implements a new clause LIMIT ROWS EXAMINED <num>
as an extention to the ANSI LIMIT clause. This extension
allows to limit the number of rows and/or keys a query
would access (read and/or write) during query execution.

This bug was introduced into mariadb 5.2 in the December 2010 with
the patch that added a new engine property: the ability to support
virtual columns.    
As a result of this bug the information from frm files for tables 
that contained virtual columns did not appear in the information schema
tables.

Added test case for lp:905782 "Assertion `pageno < ((1ULL) << 40)' failed at ma_pagecache.c:3438: pagecache_read or table corruption on INSERT into a ucs2 table"
The orignal bug has been fixed earlier