add --mysqld option to my_print_defaults
change server-postin script to use that

close (and auto-drop) temporary tables before
rolling back the last transaction in the connection.

        The bug was found by Alyssa Milburn.
        If the number of points of a geometry feature read from
        binary representation is greater than 0x10000000, then
        the (uint32) (num_points * 16) will cut the higher byte,
        which leads to various errors.
        Fixed by additional check if (num_points > max_n_points).

sql/sql_table.cc:
  Don't call allow_access_to_protected_table() if we haven't protected table against usage.
  Table is mainly protected against usage when one disables keys with alter table.

sql/sql_table.cc:
  Remove version protection from share when repair has been done.
  Without this one can't run SHOW commands on the table if it was locked until it's unlocked.
sql/table.h:
  Allow one to remove version protection with allow_access_to_protected_table()

This bug is a regression bug. The regression was introduced by
the patch for mdev-3851, that tried to weaken the condition when
a ref access with an extended key can be converted to an eq_ref
access. The patch incorrectly formed this condition. As a result,
while improving performance for some queries, the patch caused 
worse performance for another queries.

MDEV-4216 : export additional functions  mysql_get_timeout_value(),mysql_get_timeout_value_ms(),  mysql_get_socket() from shared client library. They are documented as part of async API.

Also, remove  functions mysql_close_slow_part_start() and mysql_close_slow_part_cont() from exports - they are not documented anywhere.

Removed the obsolete instructions from the MySQL 5.1 manual. Instead provide a link to https://kb.askmonty.org/en/compiling-mariadb-from-source/

The issue was that there was that SHOW commands could open the table in the store engine, even in cases
where it should not be allowed to do that (ie, the storage engines meta data for that table was under big changes).

The cases where this should not be allowed are:
- ALTER TABLE DISABLE KEYS
- ALTER TABLE ENABLE KEYS
- REPAIR TABLE
- OPTIMIZE TABLE
- DROP TABLE

This patch adds a new mode, protected_against_usage(). If this is used then the SHOW command will wait until the table
is accessable. This is implemented by re-using the already exising 'version' flag for TABLE_SHARE.
It also added functions to be used to change TABLE_SHARE->version instead of changing it directly.
	


mysql-test/r/myisam-metadata.result:
  Added test case
mysql-test/t/myisam-metadata.test:
  Added test case
sql/mysqld.cc:
  Start from refresh_version 2 as 0 and 1 are reserved.
sql/sql_admin.cc:
  Added MYSQL_OPEN_FOR_REPAIR
  Updated call to wait_while_table_is_used()
sql/sql_base.cc:
  Updated call to wait_while_table_is_used()
  - Allow one to specify how the table should be removed (for all commands except show or for all commands).
  - Don't allow one to reopen the table if one has called share->protect_against_usage()
sql/sql_base.h:
  Added TDC_RT_REMOVE_NOT_OWN_AND_MARK_NOT_USABLE, which is used to mark that no one can reopen this table, except with MYSQL_OPEN_FOR_REPAIR .
  - Added MYSQL_OPEN_FOR_REPAIR
  - Updated prototype for wait_while_table_is_used()
sql/sql_table.cc:
  Updated call to wait_while_table_is_used()
  Use MYSQL_OPEN_FOR_REPAIR for open tables that where repaired.
sql/sql_truncate.cc:
  Updated call to wait_while_table_is_used()
sql/table.cc:
  Use set_refresh_version()
sql/table.h:
  Added functions to be used to change TABLE_SHARE->version instead of changing it directly

Do not include BLOB fields into the key to access the temporary
table created for a materialized view/derived table.
BLOB components are not allowed in keys. 

  revid:georgi.kodinov@oracle.com-20120309130449-82e3bs5v3et1x0ef
  committer: Georgi Kodinov <Georgi.Kodinov@Oracle.com>
  timestamp: Fri 2012-03-09 15:04:49 +0200
  message:
    Bug #12408412: GROUP_CONCAT + ORDER BY + INPUT/OUTPUT SAME 
    USER VARIABLE = CRASH
    Moved the preparation of the variables that receive the output from 
    SELECT INTO from execution time (JOIN:execute) to compile time 
    (JOIN::prepare). This ensures that if the same variable is used in the
    SELECT part of SELECT INTO it will be properly marked as non-const
    for this query.
    Test case added.
    Used proper fast iterator.

a better fix (much smaller and without regressions) is coming from 5.1

Replace with an auto_increment primary key and another unique key didn't replicate correctly with REPLACE

MySQL Bug #12408412: GROUP_CONCAT + ORDER BY + INPUT/OUTPUT SAME USER VARIABLE = CRASH
and
MySQL Bug#14664077 SEVERE PERFORMANCE DEGRADATION IN SOME CASES WHEN USER VARIABLES ARE USED


sql/item_func.cc:
  don't use anything from Item_func_set_user_var::fix_fields()
  in Item_func_set_user_var::save_item_result()
sql/sql_class.cc:
  Call suv->save_item_result(item) *before* doing suv->fix_fields(), because
  the former evaluates the item (and caches its value), while the latter marks
  the user variable as non-const. The problem is that the item was fix_field'ed
  when the user variable was const, and it doesn't expect it to change to non-const
  in the middle of the execution.

mysys/errors.c:
  revert upstream's fix. use a much simpler one
mysys/my_write.c:
  revert upstream's fix. use a simpler one
sql/item_xmlfunc.cc:
  useless, but ok
sql/mysqld.cc:
  simplify upstream's fix
storage/heap/hp_delete.c:
  remove upstream's fix.
  we'll use a much less expensive approach.

Trivial cleanup

scripts/mysqld_safe.sh:
  Added support for --crash-script.
  Don't remove socket file (not needed as server will re-create it if needed)
  Patch by Eric Bergen
storage/maria/ha_maria.h:
  Removed not existing variable.

The function remove_eq_cond removes the parts of a disjunction
for which it has been proved that they are always true. In the
result of this removal the disjunction may be converted into a 
formula without OR that must be merged into the the AND formula
that contains the disjunction.
The merging of two AND conditions must take into account the
multiple equalities that may be part of each of them.
These multiple equality must be merged and become part of the
and object built as the result of the merge of the AND conditions.
Erroneously the function remove_eq_cond lacked the code that 
would merge multiple equalities of the merged AND conditions.
This could lead to confusing situations when at the same AND 
level there were two multiple equalities with common members
and the list of equal items contained only some of these 
multiple equalities.
This, in its turn, could lead to an incorrect work of the
function substitute_for_best_equal_field when it tried to optimize
ref accesses. This resulted in forming invalid TABLE_REF objects
that were used to build look-up keys when materialized subqueries
were exploited.
   

Compilation : fix oqgraph's system check, in case where boost header aren't in standard include directory.

This bug in the legacy code could manifest itself in queries with
semi-join materialized subqueries.
When a subquery is materialized all conditions that are imposed
only on the columns belonging to the tables from the subquery 
are taken into account.The code responsible for subquery optimizations
that employes subquery materialization  makes sure to remove these
conditions from the WHERE conditions of the query obtained after
it has transformed the original query into a query with a semi-join.
If the condition to be removed is an equality condition it could
be added to ON expressions and/or conditions from disjunctive branches
(parts of OR conditions) in an attempt to generate better access keys
to the tables of the query. Such equalities are supposed to be removed
later from all the formulas where they have been added to.
However, erroneously, this was not done in some cases when an ON
expression and/or a disjunctive part of the OR condition could
be converted into one multiple equality. As a result some equality
predicates over columns belonging to the tables of the materialized
subquery remained in the ON condition and/or the a disjunctive 
part of the OR condition, and the excuter later, when trying to
evaluate them, returned wrong answers as the values of the fields
from these equalities were not valid.  
This happened because any standalone multiple equality (a multiple
equality that are not ANDed with any other predicates) lacked
the information about equality predicates inherited from upper
levels (in particular, inherited from the WHERE condition).
The fix adds a reference to such information to any standalone
multiple equality. 

Prior to this patch, _getch() was used to read password input from console. getch() has a property that it reads Ctrl-C as character with ASCII code 0x03, and disregards Ctrl-C handler for  current process. 
The fix is to use ReadConsole() API instead of getch() , after setting console mode to ENABLE_PROCESSED_INPUT - this mode allows current process to handle Ctrl-C events.