GitLab

- Added empty constructors and virtual destructors to many classes and structs
- Removed some usage of the offsetof() macro to instead use C++ class pointers


configure.in:
  Added comment
ndb/include/ndbapi/NdbDictionary.hpp:
  Fixed compiler warnings from gcc 4.0.2
sql/field.cc:
  Fixed compiler warnings from gcc 4.0.2
sql/handler.h:
  Fixed compiler warnings from gcc 4.0.2
sql/item.h:
  Fixed compiler warnings from gcc 4.0.2
sql/item_cmpfunc.h:
  Fixed compiler warnings from gcc 4.0.2
sql/log_event.h:
  Fixed compiler warnings from gcc 4.0.2
sql/mysql_priv.h:
  Fixed compiler warnings from gcc 4.0.2
  For find_table_in_list I fixed it to use proper C++ class pointers instead of C style pointers
sql/opt_range.cc:
  Fixed compiler warnings from gcc 4.0.2
sql/parse_file.h:
  Fixed compiler warnings from gcc 4.0.2
sql/sp_rcontext.h:
  Fixed compiler warnings from gcc 4.0.2
sql/spatial.h:
  Fixed compiler warnings from gcc 4.0.2
sql/sql_base.cc:
  Fixed compiler warnings from gcc 4.0.2
sql/sql_cache.h:
  Fixed compiler warnings from gcc 4.0.2
sql/sql_class.h:
  Fixed compiler warnings from gcc 4.0.2
sql/sql_parse.cc:
  Fixed compiler warnings from gcc 4.0.2
  (Not pretty, but seams to work...)
sql/sql_select.h:
  Fixed compiler warnings from gcc 4.0.2
sql/sql_update.cc:
  Fixed compiler warnings from gcc 4.0.2
sql/table.h:
  Fixed compiler warnings from gcc 4.0.2
sql/tztime.cc:
  Fixed compiler warnings from gcc 4.0.2
sql/tztime.h:
  Fixed compiler warnings from gcc 4.0.2

If item->cached_table is set, find_field_in_tables() returns found field
even if it doesn't belong to current select. Because Item_field::fix_fields
doesn't expect such behaviour, reported bug occurs.

Item_field::fix_fields() was modifed to detect when find_field_in_tables() 
can return field from outer select and process such fields accordingly.
In order to ease this code which was searching and processing outed fields was
moved into separate function called Item_field::fix_outer_field().


sql/item_subselect.h:
  Fixed bug #15706: find_field_in_tables() returns field from outer select
  Item_field::fix_outer_field() was marked as friend to Item_subselect class.
sql/item.h:
  Fixed bug #15706: find_field_in_tables() returns field from outer select
  fix_outer_field() function is added to the Item_field class.
sql/item.cc:
  Fixed bug #15706: find_field_in_tables() returns field from outer select
  
  Item_ref::fix_fields() and Item_field::fix_fields() were modifed to detect when
  find_field_in_tables() can return field from outer select and process such
  fields accordingly.
  In order to ease this, code Item_field::fix_fields() which was searching and
  processing outer fields was moved into separate function called
  Item_field::fix_outer_field().
  To the Item_field::fix_field() added a loop for finding context for found field.
mysql-test/t/disabled.def:
  Fixed bug #15706: find_field_in_tables() returns field from outer select
  Enable subselect test

  - BUG#15166: Wrong update permissions required to execute triggers
  - BUG#15196: Wrong select permission required to execute triggers

The idea of the fix is to check necessary privileges
in Item_trigger_field::fix_fields(), instead of having "special variables"
technique. To achieve this, we should pass to an Item_trigger_field instance
a flag, which will indicate the usage/access type of this trigger variable.


mysql-test/r/trigger-grant.result:
  Update the result file.
mysql-test/t/trigger-grant.test:
  Add test cases for BUG#15166 and BUG#15196
sql/item.cc:
  Item_trigger_field: check appropriate (SELECT/UPDATE) privilege in fix_fields().
sql/item.h:
  Add a flag to specify access type for trigger field.
sql/sql_trigger.cc:
  "Special variable" technique of checking privileges for NEW/OLD variables
  was replaced by checking table- and column-level privileges in
  Item_trigger_field::fix_fields().
sql/sql_trigger.h:
  "Special variable" technique of checking privileges for NEW/OLD variables
  was replaced by checking table- and column-level privileges in
  Item_trigger_field::fix_fields().
sql/sql_yacc.yy:
  Specify access type for trigger fields.

- Fixed tests
- Optimized new code
- Fixed some unlikely core dumps
- Better bug fixes for:
  - #14397 - OPTIMIZE TABLE with an open HANDLER causes a crash
  - #14850 (ERROR 1062 when a quering a view using a Group By on a column that can be null


mysql-test/r/create.result:
  Update results after removing wrong warnings for CREATE ... SELECT
  New tests
mysql-test/r/handler.result:
  Drop used tables
mysql-test/r/kill.result:
  Make test portable
mysql-test/r/mysqlshow.result:
  Drop tables used by previous test
mysql-test/r/trigger.result:
  Reuse old procedure name
mysql-test/r/view.result:
  Extra tests
mysql-test/t/create.test:
  New tests to test fix of removing wrong warnings for CREATE ... SELECT
mysql-test/t/disabled.def:
  Enable 'kill' test (should now be portable)
mysql-test/t/handler.test:
  Drop used tables
mysql-test/t/kill.test:
  Make test portable even if kill doesn't work at once
mysql-test/t/mysqlshow.test:
  Drop tables used by previous test
mysql-test/t/trigger.test:
  Reuse old procedure name
mysql-test/t/view.test:
  Extra tests
sql/field.cc:
  Removed compiler warning
sql/ha_federated.cc:
  my_snprintf -> strmake()
  (Simple optimization)
sql/ha_ndbcluster.cc:
  Indentation cleanups and trival optimization
sql/item.cc:
  Moved save_org_in_field() to item.cc to make it easier to test
  Remove setting of null_value as this is not needed
sql/item.h:
  Moved save_org_in_field() to item.cc to make it easier to test
sql/log_event.cc:
  Remove inline of slave_load_file_stem()
  Added 'extension' parameter to slave_load_file_stem() to get smaller code
  Removed not critical (or needed) DBUG_ASSERT()'s
  Cleaned up usage of slave_load_file_stem() to not depend on constant string lengths
  Indentation fixes
sql/opt_range.cc:
  Moved code from declaration to function body
  (To make it more readable)
sql/parse_file.cc:
  Fixed DBUG_PRINT
sql/sp.cc:
  Simple cleanups
  - Removed not needed {} level
  - Ensure saved variables starts with old_
sql/sp_head.cc:
  Indentation fixes
  Remove core dump when using --debug when m_next_cached_sp == 0
  Fixed compiler warnings
  Trivial optimizations
sql/sp_head.h:
  Changed argument to set_definer() to const
  Added THD argument to recursion_level_error() to avoid call to current_thd
sql/sql_acl.cc:
  Removed not needed test (first_not_own_table is the guard)
sql/sql_base.cc:
  Removed extra empty line
sql/sql_handler.cc:
  Don't test table version in mysql_ha_read() as this is already tested in lock_tables()
  Moved call to insert_fields to be after lock_table() to guard aganst reopen of tables
  (Better fix for Bug#14397 - OPTIMIZE TABLE with an open HANDLER causes a crash)
sql/sql_insert.cc:
  Mark fields that are set in CREATE ... SELECT as used
  (Removed wrong warnings about field not having a default value)
sql/sql_parse.cc:
  Removed not needed test of 'tables' (first_not_own_table is the guard)
  Simplify code
sql/sql_select.cc:
  Use group->field to check if value is null instead of item called by 'save_org_in_field'
  This is a better bug fix for #14850 (ERROR 1062 when a quering a view using a Group By on a column that can be null)
sql/sql_trigger.cc:
  Move sql_modes_parameters outside of function
  Indentation fixes
  Fixed compiler warning
  Ensure that thd->lex->query_tables_own_last is set properly before calling check_table_access()
  (This allows us to remove the extra test in check_grant() and check_table_access())

to Crash": the bug was that due to non-standard name
resolution precedence in stored procedures (See Bug#5967)
a stored procedure variable took precedence over a table column
when the arguments for VALUES() function were resolved.
The implementation of VALUES() function was not designed to work
with Item_splocal and crashed.
VALUES() function is non-standard. It can refer to, and
is meaningful for, table columns only. The patch disables SP 
variables as possible arguments of VALUES() function.


mysql-test/r/sp.result:
  Test results fixed (Bug#15441).
  Also make sure that the recently added test cases follow sp.test
  internal tests standard.
mysql-test/t/sp.test:
  Add a test case for Bug#15441 "Running SP causes Server to Crash".
sql/item.cc:
  Cleanup Item_insert_value::fix_fields().
sql/item.h:
  Add a comment for Item_insert_value.
sql/sql_yacc.yy:
  Actual fix for Bug#15441 "Running SP causes Server to Crash":
  we should not allow VALUES() function to reference SP variables.

according to the standard.

The idea is to use Field-classes to implement stored routines
variables. Also, we should provide facade to Item-hierarchy
by Item_field class (it is necessary, since SRVs take part
in expressions).

The patch fixes the following bugs:
  - BUG#8702: Stored Procedures: No Error/Warning shown for inappropriate data 
    type matching; 
 
  - BUG#8768: Functions: For any unsigned data type, -ve values can be passed 
    and returned; 
 
  - BUG#8769: Functions: For Int datatypes, out of range values can be passed 
    and returned; 
 
  - BUG#9078: STORED PROCDURE: Decimal digits are not displayed when we use 
    DECIMAL datatype; 
 
  - BUG#9572: Stored procedures: variable type declarations ignored; 
 
  - BUG#12903: upper function does not work inside a function; 
 
  - BUG#13705: parameters to stored procedures are not verified; 
 
  - BUG#13808: ENUM type stored procedure parameter accepts non-enumerated
    data; 
 
  - BUG#13909: Varchar Stored Procedure Parameter always BINARY string (ignores 
    CHARACTER SET); 
 
  - BUG#14161: Stored procedure cannot retrieve bigint unsigned;

  - BUG#14188: BINARY variables have no 0x00 padding;

  - BUG#15148: Stored procedure variables accept non-scalar values;


mysql-test/r/ctype_ujis.result:
  Explicitly specify correct charset.
mysql-test/r/schema.result:
  Drop our test database to not affect this test if some test
  left it cause of failure.
mysql-test/r/show_check.result:
  Drop our test database to not affect this test if some test
  left it cause of failure.
mysql-test/r/skip_name_resolve.result:
  Ignore columns with unpredictable values.
mysql-test/r/sp-big.result:
  Add cleanup statement.
mysql-test/r/sp-dynamic.result:
  Add cleanup statements.
mysql-test/r/sp.result:
  Update result file.
mysql-test/r/sum_distinct-big.result:
  Update result file.
mysql-test/r/type_newdecimal-big.result:
  Update result file.
mysql-test/t/ctype_ujis.test:
  Explicitly specify correct charset.
mysql-test/t/schema.test:
  Drop our test database to not affect this test if some test
  left it cause of failure.
mysql-test/t/show_check.test:
  Drop our test database to not affect this test if some test
  left it cause of failure.
mysql-test/t/skip_name_resolve.test:
  Ignore columns with unpredictable values.
mysql-test/t/sp-big.test:
  Add cleanup statement.
mysql-test/t/sp-dynamic.test:
  Add cleanup statements.
mysql-test/t/sp.test:
  Non-scalar values prohibited for assignment to SP-vars;
  polishing.
mysql-test/t/type_newdecimal-big.test:
  Update type specification so that the variables
  can contain the large values used in the test.
sql/field.cc:
  Extract create_field::init() to initialize an existing
  instance of create_field from new_create_field().
sql/field.h:
  Extract create_field::init() to initialize an existing
  instance of create_field from new_create_field().
sql/item.cc:
  - Introduce a new class: Item_sp_variable -- a base class
    of stored-routine-variables classes;
  - Introduce Item_case_expr -- an Item, which is used to access
    to the expression of CASE statement;
sql/item.h:
  - Introduce a new class: Item_sp_variable -- a base class
    of stored-routine-variables classes;
  - Introduce Item_case_expr -- an Item, which is used to access
    to the expression of CASE statement;
sql/item_func.cc:
  Pass the Field (instead of Item) for the return value of
  a function to the function execution routine.
sql/item_func.h:
  Pass the Field (instead of Item) for the return value of
  a function to the function execution routine.
sql/mysql_priv.h:
  Move create_virtual_tmp_table() out of sql_select.h.
sql/sp.cc:
  Use create_result_field() instead of make_field().
sql/sp_head.cc:
  - Add a function to map enum_field_types to Item::Type;
  - Add sp_instr_push_case_expr instruction -- an instruction
    to push CASE expression into the active running context;
  - Add sp_instr_pop_case_expr instruction -- an instruction
    to pop CASE expression from the active running context;
  - Adapt the SP-execution code to using Fields instead of Items
    for SP-vars;
  - Use create_field structure for field description instead of
    a set of members.
sql/sp_head.h:
  - Add a function to map enum_field_types to Item::Type;
  - Add sp_instr_push_case_expr instruction -- an instruction
    to push CASE expression into the active running context;
  - Add sp_instr_pop_case_expr instruction -- an instruction
    to pop CASE expression from the active running context;
  - Adapt the SP-execution code to using Fields instead of Items
    for SP-vars;
  - Use create_field structure for field description instead of
    a set of members.
sql/sp_pcontext.cc:
  - Change rules to assign an index of SP-variable: use
    transparent index;
  - Add an operation to retrieve a list of defined SP-vars
    from the processing context recursively.
sql/sp_pcontext.h:
  - Change rules to assign an index of SP-variable: use
    transparent index;
  - Add an operation to retrieve a list of defined SP-vars
    from the processing context recursively.
sql/sp_rcontext.cc:
  - Change rules to assign an index of SP-variable: use
    transparent index;
  - Use a tmp virtual table to store SP-vars instead of Items;
  - Provide operations to work with CASE expresion.
sql/sp_rcontext.h:
  - Change rules to assign an index of SP-variable: use
    transparent index;
  - Use a tmp virtual table to store SP-vars instead of Items;
  - Provide operations to work with CASE expresion.
sql/sql_class.cc:
  - Reflect Item_splocal ctor changes;
  - Item_splocal::get_offset() has been renamed to get_var_idx().
sql/sql_class.h:
  Polishing.
sql/sql_parse.cc:
  Extract create_field::init() to initialize an existing
  instance of create_field from new_create_field().
sql/sql_select.cc:
  Take care of BLOB columns in create_virtual_tmp_table().
sql/sql_select.h:
  Move create_virtual_tmp_table() out of sql_select.h.
sql/sql_trigger.cc:
  Use boolean constants for boolean type instead of numerical ones.
sql/sql_yacc.yy:
  Provide an instance of create_field for each SP-var.
mysql-test/include/sp-vars.inc:
  The definitions of common-procedures, which are created
  under different circumstances.
mysql-test/r/sp-vars.result:
  Result file for the SP-vars test.
mysql-test/sp-vars.test:
  A new test for checking SP-vars functionality.

- use rint() in some other val_int() methods as well.

Post-review fixes according to Monty's review.


sql/item.h:
  Unite all code that stores and restores the state of a name resolution context
  into a class to represent the state, and methods to save/restore that
  state.
sql/mysql_priv.h:
  Reorder parameters so that length is after the name of a field,
  and database is before table name.
sql/sql_acl.cc:
  Reorder parameters so that length is after the name of a field,
  and database is before table name.
sql/sql_base.cc:
  * Reorder parameters so that length is after the name of a field,
    and database is before table name.
  * Added new method - Field_iterator_table_ref::get_natural_column_ref
    to avoid unnecessary code when it is knwon that no new columns will
    be created when accessing natural join columns.
sql/sql_insert.cc:
  Unite all code that stores and restores the state of a name resolution context
  into a class to represent the state, and methods to save/restore that
  state.
sql/sql_lex.cc:
  Removed obsolete comment.
sql/sql_lex.h:
  Return error from push_contex() if there is no memory.
sql/sql_list.h:
  Extended base_list_iterator, List_iterator, and List_iterator_fast with an
  empty constructor, and init() methods, so that one doesn't have to construct
  a new iterator object every time one needs to iterate over a new list.
sql/sql_parse.cc:
  Moved common functionality from the parser into one function, and renamed
  the function to better reflect what it does.
sql/sql_yacc.yy:
  Moved common functionality from the parser into one function, and renamed
  the function to better reflect what it does.
sql/table.cc:
  * Extended base_list_iterator, List_iterator, and List_iterator_fast with an
    empty constructor, and init() methods, so that one doesn't have to construct
    a new iterator object every time one needs to iterate over a new list.
  * Added new method Field_iterator_table_ref::get_natural_column_ref to be
    used in cases when it is known for sure that no new columns should be
    created.
sql/table.h:
  - column_ref_it no longer allocated for each new list of columns
  - new method get_natural_join_column for faster/simpler access
    to natural join columns.

  Fixing Item_param::safe_charset_converter to do less "new"s.


sql/item.h:
  Fixing Item_param::safe_charset_converter to do less "new"s.
sql/item.cc:
  Fixing Item_param::safe_charset_converter to do less "new"s.

if inner routine has more local variables than outer one, and
one of its last variables was used as argument to NOT operator".

THD::spcont was non-0 when we were parsing stored routine/trigger
definition during execution of another stored routine. This confused
methods of Item_splocal and forced them use wrong runtime context.
Fix ensures that we always have THD::spcont equal to zero during
routine/trigger body parsing. This also allows to avoid problems
with errors which occur during parsing and SQL exception handlers.


mysql-test/r/sp.result:
  Test suite for bug#13549.
mysql-test/r/trigger.result:
  Test suite for bug#13549.
mysql-test/t/sp.test:
  Test suite for bug#13549.
mysql-test/t/trigger.test:
  Test suite for bug#13549.
sql/item.cc:
  Protection against using wrong context by SP local variable.
sql/item.h:
  Protection against using wrong context by SP local variable.
sql/protocol.cc:
  An incorrect macro name fixed.
sql/protocol.h:
  An incorrect macro name fixed.
sql/sp.cc:
  Do not allow SP which we are parsing to use other SP
  context (BUG#13549).
sql/sp_head.cc:
  Protection against using wrong context by SP local variable.
sql/sp_rcontext.h:
  Protection against using wrong context by SP local variable.
sql/sql_cache.h:
  An incorrect macro name fixed.
sql/sql_class.cc:
  Protection against using wrong context by SP local variable.
sql/sql_class.h:
  Protection against using wrong context by SP local variable.
sql/sql_trigger.cc:
  Do not allow Trigger which we are parsing to use
  other SP context (BUG#13549).
sql/sql_yacc.yy:
  Protection against using wrong context by SP local variable.

Bad examples of usage of a string with its length fixed.
The incorrect length in the trigger file configuration descriptor
  fixed (BUG#14090).
A hook for unknown keys added to the parser to support old .TRG files.


sql/field.cc:
  Inefficient usage of String::append() fixed.
  Bad examples of usage of a string with its length fixed.
sql/ha_berkeley.cc:
  A bad example of usage of a string with its length fixed.
sql/ha_federated.cc:
  Inefficient usage of String::append() fixed.
sql/ha_myisammrg.cc:
  Bad examples of usage of a string with its length fixed.
sql/handler.cc:
  Inefficient usage of String::append() fixed.
sql/item.cc:
  Bad examples of usage of a string with its length fixed.
sql/item.h:
  A bad example of usage of a string with its length fixed.
sql/item_cmpfunc.cc:
  Bad examples of usage of a string with its length fixed.
sql/item_func.cc:
  Bad examples of usage of a string with its length fixed.
sql/item_strfunc.cc:
  Bad examples of usage of a string with its length fixed.
sql/item_subselect.cc:
  Bad examples of usage of a string with its length fixed.
sql/item_sum.cc:
  Bad examples of usage of a string with its length fixed.
  Inefficient usage of String::append() fixed.
sql/item_timefunc.cc:
  Inefficient using of String::append() fixed.
  Bad examples of usage of a string with its length fixed.
sql/item_uniq.h:
  Bad examples of usage of a string with its length fixed.
sql/key.cc:
  Bad examples of usage of a string with its length fixed.
sql/log.cc:
  Bad examples of usage of a string with its length fixed.
sql/log_event.cc:
  Bad examples of usage of a string with its length fixed.
sql/mysqld.cc:
  The dummy parser hook allocated.
sql/opt_range.cc:
  Inefficient usage of String::append() fixed.
sql/parse_file.cc:
  Bad examples of usage of a string with its length fixed.
  A hook for unknown keys added to the parser.
sql/parse_file.h:
  A hook for unknown keys added to the parser.
sql/protocol.cc:
  A bad example of usage of a string with its length fixed.
sql/repl_failsafe.cc:
  Bad examples of usage of a string with its length fixed.
sql/share/errmsg.txt:
  A warning for old format config file.
sql/slave.cc:
  Bad examples of usage of a string with its length fixed.
sql/sp.cc:
  Bad examples of usage of a string with its length fixed.
sql/sp_head.cc:
  Bad examples of usage of a string with its length fixed.
sql/spatial.cc:
  A bad example of usage of a string with its length fixed.
sql/sql_acl.cc:
  Bad examples of usage of a string with its length fixed.
sql/sql_analyse.cc:
  Bad examples of usage of a string with its length fixed.
  Inefficient usage of String::append() fixed.
sql/sql_lex.cc:
  Bad examples of usage of a string with its length fixed.
sql/sql_load.cc:
  A bad example of usage of a string with its length fixed.
sql/sql_parse.cc:
  Bad examples of usage of a string with its length fixed.
sql/sql_prepare.cc:
  A bad example of usage of a string with its length fixed.
sql/sql_select.cc:
  Bad examples of usage of a string with its length fixed.
sql/sql_show.cc:
  Bad examples of usage of a string with its length fixed.
sql/sql_string.cc:
  Bad examples of usage of a string with its length fixed.
sql/sql_string.h:
  The macro definition moved to sql_string.h to
    be accessible in all parts of server.
sql/sql_table.cc:
  Bad examples of usage of a string with its length fixed.
sql/sql_trigger.cc:
  Bad examples of usage of a string with its length fixed.
  The incorrect length in the trigger file configuration descriptor
    fixed (BUG#14090).
  The hook for processing incorrect sql_mode record added.
sql/sql_view.cc:
  A dummy  hook used for parsing views.
sql/structs.h:
  The macro definition moved to sql_string.h to be
    accessible in all parts of server.
sql/table.cc:
  A bad example of usage of a string with its length fixed.
sql/tztime.cc:
  A bad example of usage of a string with its length fixed.

Item_ref's null_value wasn't updated in save_org_in_field() causing reported
error.


sql/item.h:
  Fix bug #14850 Item_ref's null_value wasn't updated
  Make save_org_in_field() update Item_ref's null_value.
mysql-test/r/view.result:
  Test case for bug #14850 Item_ref's null_value wasn't updated
mysql-test/t/view.test:
   Test case for bug #14850 Item_ref's null_value wasn't updated

Invalid date like 2000-02-32 wasn't converted to int, which lead to not
using index and comparison with field as astring, which results in slow
query execution.

convert_constatn_item() and get_mm_leaf() now forces MODE_INVALID_DATES to
allow such conversion.


sql/item.h:
  Fix bug #14093 Query takes a lot of time when date format is not valid
  To Item_int_with_ref added method real_item() which returns ref.
sql/item_cmpfunc.cc:
   Fix bug #14093 Query takes a lot of time when date format is not valid
  convert_constant_item() now allows conversion of invalid dates like 2000-01-32 to int to make it possible to use index when comparing fields with such dates.
sql/opt_range.cc:
   Fix bug #14093 Query takes a lot of time when date format is not valid
  get_mm_leaf() modified so it allows index usage for comparing fields with invalid dates like 2000-01-32.
mysql-test/r/select.result:
  Test case for bug#14093 Query takes a lot of time when date format is not valid
mysql-test/t/select.test:
  Test case for bug#14093 Query takes a lot of time when date format is not valid

mysql-test/r/information_schema.result:
  error message changed
mysql-test/r/sp.result:
  error message changed
mysql-test/r/sql_mode.result:
  fixed test suite
mysql-test/r/view.result:
  error message changed
mysql-test/r/view_grant.result:
  test of underlying view tables check
mysql-test/t/sql_mode.test:
  fixed test suite
mysql-test/t/view_grant.test:
  test of underlying view tables check
sql/item.cc:
  check of underlying tables privilege added
sql/item.h:
  Name the resolution context points to the security  context of view (if item belong to the view)
sql/item_func.cc:
  a view error hiding for execution of prepared function belonged to a view
  fixed checking privileges if stored functions belonds to some view
sql/mysql_priv.h:
  refult of derived table processing functions changed to bool
  Security_context added as an argument to find_field_in_table()
sql/share/errmsg.txt:
  error message fixed
sql/sql_acl.cc:
  Storing requested privileges of tables added
  View underlying tables privilege check added
sql/sql_base.cc:
  View underlying tables privilege check added
sql/sql_cache.cc:
  Code cleunup: we should not register underlying tables of view second time
sql/sql_delete.cc:
  ancestor -> merge_underlying_list renaming
sql/sql_derived.cc:
  refult of derived table processing functions changed to bool
  do not give SELECT_ACL for TEMPTABLE views
sql/sql_lex.h:
  The comment added
sql/sql_parse.cc:
  registration of requested privileges added
sql/sql_prepare.cc:
  registration of requested privileges added
sql/sql_update.cc:
  manipulation of requested privileges for underlying tables made the same as for table which we are updating
sql/sql_view.cc:
  underlying tables of view security check support added
sql/table.cc:
  renaming and fixing view preparation methods, methods for checking underlyoing tables security context added
sql/table.h:
  storege for reuested privileges added

ctype_utf8.test, ctype_utf8.result:
  Adding test case.
item.h:
item.cc:
  Adding Item_param::safe_charset_converter


sql/item.cc:
   Bug#12371: executing prepared statement fails (illegal mix of collations)
  Adding Item_param::safe_charset_converter
sql/item.h:
  Adding Item_param::safe_charset_converter
mysql-test/r/ctype_utf8.result:
  Adding test case.
mysql-test/t/ctype_utf8.test:
  Adding test case.

allowed set functions aggregated in outer subqueries, allowed nested set functions.


mysql-test/r/func_gconcat.result:
  Changed a query when fixing bug #12762.
mysql-test/r/subselect.result:
  Added test cases for bug #12762.
  Allowed set functions aggregated in outer subqueries. Allowed nested set functions.
mysql-test/t/func_gconcat.test:
  Changed a query when fixing bug #12762.
mysql-test/t/subselect.test:
  Added test cases for bug #12762.
  Allowed set functions aggregated in outer subqueries. Allowed nested set functions.
sql/item.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Added a parameter to Item::split_sum_func2 aliowing to defer splitting for set functions
  aggregated in outer subquries.
  Changed Item_field::fix_fields to calculate attributes used when checking context conditions
  for set functions.
  Allowed alliases for set functions defined in outer subqueries.
sql/item.h:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Added a parameter to Item::split_sum_func2 aliowing to defer splitting for set functions
  aggregated in outer subquries.
sql/item_cmpfunc.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Added a parameter to Item::split_sum_func2 aliowing to defer splitting for set functions
  aggregated in outer subquries.
sql/item_func.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Added a parameter to Item::split_sum_func2 aliowing to defer splitting for set functions
  aggregated in outer subquries.
sql/item_row.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Added a parameter to Item::split_sum_func2 aliowing to defer splitting for set functions
  aggregated in outer subquries.
sql/item_strfunc.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Added a parameter to Item::split_sum_func2 aliowing to defer splitting for set functions
  aggregated in outer subquries.
sql/item_subselect.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Introduced next levels for subqueries and a bitmap of nesting levels showing
  in what subqueries a set function can be aggregated.
sql/item_sum.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Added Item_sum methods to check context conditions imposed on set functions.
sql/item_sum.h:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Added Item_sum methods to check context conditions imposed on set functions.
sql/mysql_priv.h:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Introduced a type of bitmaps to be used for nesting constructs.
sql/sql_base.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Introduced next levels for subqueries and a bitmap of nesting levels showing
  in what subqueries a set function can be aggregated.
sql/sql_class.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Introduced a bitmap of nesting levels showing in what subqueries a set function can be aggregated.
sql/sql_class.h:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Introduced a bitmap of nesting levels showing in what subqueries a set function can be aggregated.
sql/sql_delete.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Introduced a bitmap of nesting levels showing in what subqueries a set function can be aggregated.
sql/sql_lex.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Introduced next levels for subqueries and a bitmap of nesting levels showing
  in what subqueries a set function can be aggregated.
sql/sql_lex.h:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Introduced next levels for subqueries and a bitmap of nesting levels showing
  in what subqueries a set function can be aggregated.
sql/sql_parse.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Introduced next levels for subqueries.
sql/sql_prepare.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Introduced a bitmap of nesting levels showingin what subqueries a set function can be aggregated.
sql/sql_select.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Introduced next levels for subqueries and a bitmap of nesting levels showing
  in what subqueries a set function can be aggregated.
sql/sql_update.cc:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Introduced a bitmap of nesting levels showing in what subqueries a set function can be aggregated.
sql/sql_yacc.yy:
  Fixed bug #12762:
  allowed set functions aggregated in outer subqueries, allowed nested set functions.
  Introduced next levels for subqueries.

- CHAR() now returns binary string as default
- CHAR(X*65536+Y*256+Z) is now equal to CHAR(X,Y,Z) independent of the character set for CHAR()
- Test for both ETIMEDOUT and ETIME from pthread_cond_timedwait()
  (Some old systems returns ETIME and it's safer to test for both values
   than to try to write a wrapper for each old system)
- Fixed new introduced bug in NOT BETWEEN X and X
- Ensure we call commit_by_xid or rollback_by_xid for all engines, even if one engine has failed
- Use octet2hex() for all conversion of string to hex
- Simplify and optimize code


client/mysqldump.c:
  Simple optimizations of new code
  Indentation fixes
client/mysqltest.c:
  Removed not needed variable
include/mysql_com.h:
  Made octec2hex() more usable
mysql-test/r/ctype_utf8.result:
  CHAR() now returns binary string as default
mysql-test/r/func_str.result:
  CHAR() now returns binary string as default
mysql-test/r/range.result:
  Added test to verify new introduced bug in NOT BETWEEN X and X
mysql-test/r/user_var-binlog.result:
  CHAR() now returns binary string as default
mysql-test/r/view.result:
  More tests of view rename
mysql-test/t/ctype_utf8.test:
  CHAR() now returns binary string as default
mysql-test/t/func_str.test:
  CHAR() now returns binary string as default
mysql-test/t/range.test:
  Added test to verify new introduced bug in NOT BETWEEN X and X
mysql-test/t/view.test:
  More tests of view rename
mysys/mf_keycache.c:
  Indentation changes
  Test for both ETIMEDOUT and ETIME from pthread_cond_timedwait()
mysys/my_os2cond.c:
  Fix to MySQL coding style
  Optimized functions
mysys/thr_lock.c:
  Test for both ETIMEDOUT and ETIME from pthread_cond_timedwait()
mysys/thr_mutex.c:
  Test for both ETIMEDOUT and ETIME from pthread_cond_timedwait()
server-tools/instance-manager/instance.cc:
  Test for both ETIMEDOUT and ETIME from pthread_cond_timedwait()
server-tools/instance-manager/thread_registry.cc:
  Test for both ETIMEDOUT and ETIME from pthread_cond_timedwait()
sql/ha_federated.cc:
  Use octet2hex()
sql/ha_ndbcluster.cc:
  Removed not used variable
sql/handler.cc:
  Simplify code
  Use *NONE* instead of 'none' for not existing storage engine
  Ensure we call commit_by_xid or rollback_by_xid for all engines, even if one engine has failed
sql/item.h:
  Remove not needed test for *ref.  (If ref is set, it should never point at 0)
sql/item_func.cc:
  Test for both ETIMEDOUT and ETIME from pthread_cond_timedwait()
  Simplify code
  More comments
  Require that last argument to find_and_check_access() is given
  (Made code shorter and faster)
sql/item_strfunc.cc:
  Changed CHAR() to return result in binary collation
  CHAR(X*65536+Y*256+Z) is now equal to CHAR(X,Y,Z) independent of the character set for CHAR()
  
  Bar will shortly add the following syntax:
  CHAR(.... USING character_set)
  and ensure that
  CONVERT(CHAR(....) USING utf8) cuts not legal utf8 strings
  Use ocet2hex()
sql/item_strfunc.h:
  CHAR() now returns a binary string
sql/log_event.cc:
  Use octet2hex()
  Simplify code
sql/parse_file.cc:
  Indentation fixes
  Use for() instead of while()
sql/password.c:
  Make octet2hex() more generally usable by returning pointer to end 0
sql/slave.cc:
  Test for both ETIMEDOUT and ETIME from pthread_cond_timedwait()
sql/sql_base.cc:
  Indentation fixes
sql/sql_insert.cc:
  Test for both ETIMEDOUT and ETIME from pthread_cond_timedwait()
sql/sql_manager.cc:
  Test for both ETIMEDOUT and ETIME from pthread_cond_timedwait()
sql/sql_parse.cc:
  Don't check thd->db when checking for function privileges
sql/sql_prepare.cc:
  Fixed wrong merge
sql/sql_select.cc:
  Fixed new bug for NOT BETWEEN X and X
sql/sql_show.cc:
  Removed not used variable
sql/sql_table.cc:
  Indentation fixed
  Removed DBUG_PRINT that is obvious from context
sql/sql_view.cc:
  Simplify code
sql/unireg.cc:
  Use octet2hex()

Ensure that ccache is also used for C programs
mysql: Ensure that 'delimiter' works the same way in batch mode as in normal mode
mysqldump: Change to use ;; (instead of //) as a stored procedure/trigger delimiter
Fixed test cases by adding missing DROP's and rename views to be of type 'v#'
Removed MY_UNIX_PATH from fn_format()
Removed current_db_used from TABLE_LIST
Removed usage of 'current_thd' in Item_splocal
Removed some compiler warnings
A bit faster longlong2str code



BUILD/FINISH.sh:
  Ensure that ccache is also used for C programs
BUILD/SETUP.sh:
  Ensure that ccache is also used for C programs
client/mysql.cc:
  More debugging
  Ensure that 'delimiter' works the same way in batch mode as in normal mode.
  Compare 'delimiter' command case-insensitive.
  The above fixes the delimiter bugs so that we can now use ;; as a trigger/SP function delimiter in mysqldump.
client/mysqldump.c:
  Indentation fixes
  Use ;; as a delmimiter for stored procedures and triggers instead of //
client/mysqltest.c:
  Indentation fixes
include/my_sys.h:
  Remove not needed MY_UNIX_PATH parameter
mysql-test/r/alter_table.result:
  Better to reuse mysqltest database (test didn't properly delete mysqltest1 at start)
mysql-test/r/func_str.result:
  More testing of CONV() (to ensure that longlong2str() works correctly)
mysql-test/r/information_schema.result:
  Drop all used tables and views
  Rename view tables to 'v#' to ensure that if this test fails, not a lot of other test fails
mysql-test/r/information_schema_inno.result:
  Drop all used tables
mysql-test/r/multi_statement.result:
  Drop used tables
mysql-test/r/mysql.result:
  Add error messages to result
mysql-test/r/mysqldump.result:
  ;; is now used as SP/trigger delimiter
mysql-test/r/mysqlshow.result:
  Drop used tables
mysql-test/r/temp_table.result:
  Drop used views
  Rename views to v#
mysql-test/t/alter_table.test:
  Better to reuse mysqltest database (test didn't properly delete mysqltest1 at start)
mysql-test/t/func_str.test:
  More testing of CONV() (to ensure that longlong2str() works correctly)
mysql-test/t/information_schema.test:
  Drop all used tables and views
  Rename view tables to 'v#' to ensure that if this test fails, not a lot of other test fails
mysql-test/t/information_schema_inno.test:
  Drop all used tables
mysql-test/t/multi_statement.test:
  Drop used tables
mysql-test/t/mysql.test:
  Add error messages to result
mysql-test/t/mysqlshow.test:
  Drop used tables
mysql-test/t/temp_table.test:
  Drop used views
  Rename views to v#
mysys/mf_format.c:
  Remove not needed MY_UNIX_PATH parameter
  (This goes against how fn_format() is supposed to work and also conflicts with other options like MY_RETURN_REAL_PATH)
sql/ha_federated.cc:
  Removed extra empty line
sql/item.cc:
  Use 'str_value' instead of 'str_value_ptr' to hold result for Item_splocal
  Remove some calls to 'thd' in Item_splocal by making 'thd' a class variable
  One doesn't have to set 'null_value' when calling 'is_null()'
sql/item.h:
  Add THD as a class variable to Item_splocal
  Use 'str_value' instead of 'str_value_ptr' to hold temp result
  Fixed bug in Item_hex when used in CAST()
sql/item_func.cc:
  Optimize new code
sql/log_event.cc:
  Move 'to_unix_path()' out of fn_format()
sql/opt_range.cc:
  Simplify code
sql/sp_head.cc:
  Ensure that Item_splocal has thd set before we call '->this_item()'
sql/sql_class.cc:
  Return error if Statement::insert() fails in either hash_insert()
sql/sql_parse.cc:
  Remove 'current_db_used' as we can trivially check if db table qualifier was used without this.
  Simplify code
sql/sql_prepare.cc:
  Use enum instead of const int, to avoid ugly code for VC++
sql/structs.h:
  Remove compiler warnings when using STRING_WITH_LEN() with constant strings.
sql/table.cc:
  Fixed indentation
sql/table.h:
  Remove not needed current_db_used
strings/decimal.c:
  Simplify code
strings/longlong2str-x86.s:
  A bit faster longlong2str.
  (Took some ideas from Peter Gulutzan's code)
strings/my_strtoll10.c:
  Simplify code for MetroWerks compiler

The problem was then when a column reference was resolved to a view column, the new Item
created for this column contained the name of the view, and not the view alias.


mysql-test/r/view.result:
  Additional test for BUG#13410.
mysql-test/t/view.test:
  Additional test for BUG#13410.
sql/item.cc:
  Correctly cast 'cur_field' to Item_ident because if the original item is
  an Item_field, the cur_field is either an Item_field or an Item_ref.
  Thus we have to cast cur_field to a common super-class of both.
sql/item.h:
  - real_item() may be called before Item_ref::ref is set
    (i.e. the Item_ref object was resolved).
  - To avoid a crash and to return some meaningful value
    in such cases we return 'this'.
sql/sql_base.cc:
  - 'item' may be an Item_ref, so we test for the type of the actual
    referenced item.
  - Correctly cast 'cur_field' to Item_ident because if the original
    item is an Item_field, the cur_field is either an Item_field or an
    Item_ref. Thus we have to cast cur_field to a common super-class
    of both.
sql/table.cc:
  - When creating a new Item for a reference to a view column, use the view alias,
    and not the real view name.
  - Removed old code

Intel compiler.


client/mysqltest.c:
  Fixed a warning from using reference to a memory area,
  which is outside an object. This is just a minor
  clean-up, not a bug fix.
server-tools/instance-manager/buffer.cc:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/buffer.h:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/command.cc:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/command.h:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/guardian.cc:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/guardian.h:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/instance.cc:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/instance.h:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/instance_map.cc:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/instance_map.h:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/instance_options.cc:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/instance_options.h:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/listener.cc:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/listener.h:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/mysql_connection.cc:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/mysql_connection.h:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/options.cc:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/options.h:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/parse_output.cc:
  Removed unused goto.
server-tools/instance-manager/thread_registry.cc:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/thread_registry.h:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/user_map.cc:
  Fixed pragma warning for those compilers that do
  not support it.
server-tools/instance-manager/user_map.h:
  Fixed pragma warning for those compilers that do
  not support it.
sql/field.cc:
  Fixed a warning about overflow.
sql/item.h:
  Fixed implicit function declaration warning.
sql/item_sum.cc:
  Fixed implicit function declaration warning.

mysql-test/r/cast.result:
  Update results
mysql-test/t/cast.test:
  Add regression test
sql/item.h:
  Cap Item_real::val_int() to LONGLONG_MIN and LONGLONG_MAX.

This fixes the new report for bug #7036


mysql-test/t/cast.test:
  Added test for cast(hex-value to signed/unsigned)
sql/item.h:
  Ensure that hex strings are used as integers in cast(... signed/unsigned)

(recommit with the right Bug#)


mysql-test/r/sp.result:
  result file modified to reflect new test
mysql-test/t/sp.test:
  added test for the bug
sql/item.cc:
  protect Item_splocal value from modification by CONCAT() et al
sql/item.h:
  added a buffer to save Item_splocal string pointer
sql/sp_head.cc:
  don't employ reuse mechanism to save var into itself

Fields of view represented by Item_direct_view_ref. When complex expression
such as if(sum()>...,...) is splited in simpler parts by refs was ignored.
Beside this direct ref doesn't use it's result_field and thus can't store
it's result in tmp table which is needed for sum() ... group.
All this results in reported bug.

Item::split_sum_func2() now converts Item_direct_view_ref to Item_ref to
make fields from view being storable in tmp table.


sql/item.h:
  Fix bug #12922 if(sum(),...) with group from view returns wrong results
  Added function ref_type() to distinguish Item_ref subclasses
sql/item.cc:
  Fix bug #12922 if(sum(),...) with group from view returns wrong results
   Item::split_sum_func2() now converts Item_direct_view_ref to Item_ref to make fields from view being storable in tmp table.
mysql-test/t/view.test:
  Test case for bug#12922 if(sum(),...) with group from view returns wrong results
mysql-test/r/view.result:
  Test case for bug#12922 if(sum(),...) with group from view returns wrong results

sql/item.cc:
  Code cleanup
sql/item.h:
  Code cleanup
sql/log.cc:
  Added comments
sql/sp_head.cc:
  Code cleanup patch from Monty: 
  in subst_spvars()
  - Move local variables first in block
  - Use res|= instead of res |=
  - Use strmake() instead of alloc + memcpy
  Added:
  - Fail the query if we don't have enough memory to produce a binlog-suitable query string: 
    if we're so low on memory we're likely to fail the query anyway, and failing now removes
    the need for hack with THD::query_str_binlog_suitable.
sql/sql_class.cc:
  Remove THD::query_str_binlog_unsuitable
sql/sql_class.h:
  Remove THD::query_str_binlog_unsuitable
sql/sql_delete.cc:
  Remove THD::query_str_binlog_unsuitable
sql/sql_insert.cc:
  Remove THD::query_str_binlog_unsuitable
sql/sql_parse.cc:
  Code cleanup
sql/sql_update.cc:
  Remove THD::query_str_binlog_unsuitable

"Interleaved SPs execution is now binlogged properly, "SELECT spfunc()" is binlogged too.
The known remaining issue is binlogging/replication of "a routine is deleted while it is executed" scenario.


mysql-test/r/rpl_sp.result:
  Fix for BUG#12335: updated test cases/results
mysql-test/t/rpl_sp.test:
  Fix for BUG#12335: updated test cases/results
sql/item.cc:
  Fix for BUG#12335 (SP replication): 
   - Added Item_name_const 'function'
   - Addede 'delete reuse' to call dtor on item reuse
sql/item.h:
  Fix for BUG#12335 (SP replication) : Added Item_name_const 'function' + code cleanup
sql/item_create.cc:
   Fix for BUG#12335 (SP replication) : Added Item_name_const 'function'
sql/item_create.h:
   Fix for BUG#12335 (SP replication) : Added Item_name_const 'function'
sql/item_func.cc:
  Fix for BUG#12335 (SP replication) : binary log is now constrolled from within execute_function.
sql/lex.h:
  Fix for BUG#12335 (SP replication) : Added Item_name_const 'function'
sql/log.cc:
  Fix for BUG#12335 (SP replication) : Added MYSQL_LOG::{start|stop}_union_events to allow
  one to temporary disable binlogging but collect a 'union' information about binlog write
  calls.
sql/mysql_priv.h:
  Fix for BUG#12335 (SP replication)
sql/sp_head.cc:
  Fix for BUG#12335 (SP replication) : Now we use different SP binlogging strategy, grep for 
  StoredRoutinesBinlogging for details
sql/sp_head.h:
  Comments added
sql/sp_pcontext.h:
  Comments added
sql/sp_rcontext.h:
  Comments added
sql/sql_class.cc:
  Fix for BUG#12335 (SP replication) : Now we use different SP binlogging strategy, grep for 
  StoredRoutinesBinlogging for details
sql/sql_class.h:
  Fix for BUG#12335 (SP replication) : Added MYSQL_LOG::{start|stop}_union_events to allow
  one to temporary disable binlogging but collect a 'union' information about binlog write
  calls.
sql/sql_delete.cc:
  Fix for BUG#12335: check THD::query_str_binlog_unsuitable when writing to binlog.
sql/sql_insert.cc:
  Fix for BUG#12335: check THD::query_str_binlog_unsuitable when writing to binlog.
sql/sql_lex.cc:
  Fix for BUG#12335 (SP replication): Add ability to extract previous returned token from
  the tokenizer.
sql/sql_lex.h:
  Fix for BUG#12335 (SP replication): Add ability to extract previous returned token from
  the tokenizer.
sql/sql_parse.cc:
  Fix for BUG#12335 (SP replication) : Now we use different SP binlogging strategy, grep for 
  StoredRoutinesBinlogging for details
sql/sql_update.cc:
  Fix for BUG#12335: check THD::query_str_binlog_unsuitable when writing to binlog.
sql/sql_yacc.yy:
  Fix for BUG#12335 (SP replication) : When creating Item_splocal, remember where it is located
  in the query.

mysql-test/r/sp.result:
  update result
mysql-test/t/sp.test:
  Add test for Bug #11333 "Stored Procedure: Memory blow up on repeated SELECT ... INTO query"
sql/item.cc:
  we should call destructors for Items before reuse
sql/item.h:
  Add new method and constructor for Item_string.
sql/sp_head.cc:
  String allocation should be done on the system heap for now.

include/my_sys.h:
  Fixes from review (use version in log_event.cc instead)
mysql-test/r/ctype_cp932.result:
  Updated test for bug#11338 (logging of prepared statement w/ blob type)
mysql-test/t/ctype_cp932.test:
  udpated test for bug#11338 (logging of prepared statement w/ blob type)
mysys/charset.c:
  Fixes from review (use version in log_event.cc instead)
sql/item.cc:
  Fixes from review (store character_set_client differently so that
  fix can be merged forward to 5.0)
sql/item.h:
  Fixes from review
sql/log_event.cc:
  Fixes from review, str_to_hex is now used by item.cc
sql/log_event.h:
  Added prototype for str_to_hex (now used by item.cc)
sql/sql_prepare.cc:
  Fixes from review, store character_set_client differently so that 
  Item_param::query_val_str can use it.

- Corrected problem with N-way nested natural joins in PS mode.
- Code cleanup
- More asserts to check consistency of name resolution contexts
- Fixed potential memory leak of name resolution contexts


mysql-test/r/join.result:
  - Corrected problem with N-way nested natural joins in PS mode.
mysql-test/t/join.test:
  - Corrected problem with N-way nested natural joins in PS mode.
sql/item.h:
  - Fixed potential memory leak.
sql/sql_base.cc:
  - the local context of Item_fields that participate in TABLE_LIST::on_cond for
    natural joins is correctly set to the tables where the corresponding fields
    originate from.
  - removed unused variables
  - correct allocation of contexts
sql/sql_parse.cc:
  - correct allocation of contexts for JOIN ON conditions.
sql/table.cc:
  - added asserts to check the consistency of name resolution contexts
sql/table.h:
  - added asserts to check the consistency of name resolution contexts

In cp932, '\' character can be the second byte in a 
multi-byte character stream. This makes it difficult to use
mysql_escape_string. Added flag to indicate which languages allow
'\' as second byte of multibyte sequence so that when putting a prepared
statement into the binlog we can decide at runtime whether hex encoding
is really needed.


include/m_ctype.h:
  Added bool to indicate character sets which allow '\' as the second
  byte of a multibyte character set (currently only cp932). For these
  character sets, escaping with '\' is dangerous and leads to corruption
  in replication.
include/my_sys.h:
  Add function to enocde a string as hex with no prefix (bare)
mysys/charset.c:
  Add function to encode string as hex with no prefix (bare).
sql/item.cc:
  Check the connection character set to see if escape_string_for_mysql
  is safe, or if character set requires unambiguous (hex) encoding
sql/item.h:
  Pass thd to query_val_str for access to charset()
sql/sql_prepare.cc:
  Pass thd to query_val_str.
strings/ctype-big5.c:
  Add escape_with_backslash_is_dangerous flag.
strings/ctype-bin.c:
  Add escape_with_backslash_is_dangerous flag
strings/ctype-cp932.c:
  Add escape_with_backslash_is_dangerous flag.
strings/ctype-czech.c:
  Add escape_with_backslash_is_dangerous flag.
strings/ctype-euc_kr.c:
  Add escape_with_backslash_is_dangerous flag.
strings/ctype-extra.c:
  Add escape_with_backslash_is_dangerous flag.
strings/ctype-gb2312.c:
  Add escape_with_backslash_is_dangerous flag.
strings/ctype-gbk.c:
  Added escape_with_backslash_is_dangerous flag.
strings/ctype-latin1.c:
  Added escape_with_backslash_is_dangerous flag.
strings/ctype-sjis.c:
  Added escape_with_backslash_is_dangerous flag.
strings/ctype-tis620.c:
  Added esacpe_with_backslash_character_is_dangerous flag.
strings/ctype-uca.c:
  Added escape_with_backslash_is_dangerous flag.
strings/ctype-ucs2.c:
  Added escape_with_backslash_is_dangerous.
strings/ctype-ujis.c:
  Added escape_with_backslash_is_dangerous flag.
strings/ctype-utf8.c:
  Added escape_with_backslash_is_dangerous.
strings/ctype-win1250ch.c:
  Added escape_with_backslash_is_dangerous.

mysql-test/r/subselect.result:
  testst of IN subqueries with row
mysql-test/t/subselect.test:
  tests of ion subqueries with row
sql/item.h:
  add method to prevent of removing Item_ref_null_helper from HAVING
sql/item_cmpfunc.h:
  Prevented removing of Item_test_isnotnull from HAVING
sql/item_subselect.cc:
  fixed converting row IN subqueries
sql/sql_select.cc:
  fixed debug print

"Process NATURAL and USING joins according to SQL:2003".

* Some of the main problems fixed by the patch:
  - in "select *" queries the * expanded correctly according to
    ANSI for arbitrary natural/using joins
  - natural/using joins are correctly transformed into JOIN ... ON
    for any number/nesting of the joins.
  - column references are correctly resolved against natural joins
    of any nesting and combined with arbitrary other joins.

* This patch also contains a fix for name resolution of items
  inside the ON condition of JOIN ... ON - in this case items must
  be resolved only against the JOIN operands. To support such
  'local' name resolution, the patch introduces a stack of
  name resolution contexts used at parse time.

NOTICE:
- This patch is not complete in the sense that
  - there are 2 test cases that still do not pass -
    one in join.test, one in select.test. Both are marked
    with a comment "TODO: WL#2486".
  - it does not include a new test specific for the task


mysql-test/include/ps_query.inc:
  Adjusted according to standard NATURAL/USING join semantics.,
mysql-test/r/bdb.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/derived.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/errors.result:
  The column as a whole cannot be resolved, so different error message.
mysql-test/r/fulltext.result:
  Adjusted according to standard JOIN ... ON semantics =>
  the ON condition can refer only to the join operands.
mysql-test/r/fulltext_order_by.result:
  More detailed error message.
mysql-test/r/innodb.result:
  Adjusted according to standard NATURAL/USING join semantics.
  This test doesn't pass completetly yet!
mysql-test/r/insert_select.result:
  More detailed error message.
mysql-test/r/join.result:
  Adjusted according to standard NATURAL/USING join semantics.
  
  NOTICE: there is one test case that still fails, and it is
  commeted out and marked with WL#2486 in the test file.
mysql-test/r/join_crash.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/join_nested.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/join_outer.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/multi_update.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/null_key.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/order_by.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_2myisam.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_3innodb.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_4heap.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_5merge.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_6bdb.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/ps_7ndb.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/select.result:
  Adjusted according to standard NATURAL/USING join semantics.
  
  NOTICE: there is one failing test case which is commented with
  WL#2486 in the test file.
mysql-test/r/subselect.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/type_ranges.result:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/r/union.result:
  More detailed error message.
mysql-test/t/bdb.test:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/errors.test:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/fulltext.test:
  Adjusted according to standard JOIN ... ON semantics =>
  the ON condition can refer only to the join operands.
mysql-test/t/fulltext_order_by.test:
  More detailed error message.
mysql-test/t/innodb.test:
  Adjusted according to standard NATURAL/USING join semantics.
  This test doesn't pass completetly yet!
mysql-test/t/insert_select.test:
  More detailed error message.
mysql-test/t/join.test:
  Adjusted according to standard NATURAL/USING join semantics.
  
  NOTICE: there is one test case that still fails, and it is
  commeted out and marked with WL#2486 in the test file.
mysql-test/t/join_crash.test:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/join_nested.test:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/join_outer.test:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/null_key.test:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/order_by.test:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/select.test:
  Adjusted according to standard NATURAL/USING join semantics.
  
  NOTICE: there is one test case that still fails, and it is
  commeted out and marked with WL#2486 in the test file.
mysql-test/t/subselect.test:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/type_ranges.test:
  Adjusted according to standard NATURAL/USING join semantics.
mysql-test/t/union.test:
  More detailed error message.
sql/item.cc:
  - extra parameter to find_field_in_tables
  - find_field_in_real_table renamed to find_field_in_table
  - fixed comments/typos
sql/item.h:
  - added [first | last]_name_resolution_table to class
    Name_resolution_context
  - commented old code
  - standardized formatting
sql/mysql_priv.h:
  - refactored the find_field_in_XXX procedures,
  - added a new procedure for natural join table references,
  - renamed the find_field_in_XXX procedures to clearer names
sql/sp.cc:
  - pass the top-most list of the FROM clause to setup_tables
  - extra parameter to find_field_in_tables
sql/sql_acl.cc:
  - renamed find_field_in_table => find_field_in_table_ref
  - extra parameter to find_field_in_table_ref
  - commented old code
sql/sql_base.cc:
  This file contains the core of the implementation of the processing
  of NATURAL/USING joins (WL#2486).
  - added many comments to old code
  - refactored the group of find_field_in_XXX procedures, and added a
    new procedure for natural joins. There is one find_field_in_XXX procedure
    per each type of table reference (stored table, merge view, or natural
    join); one meta-procedure that selects the correct one depeneding on the
    table reference; and one procedure that goes over a list of table
    referenes.
  - NATURAL/USING joins are processed through the procedures:
      mark_common_columns, store_natural_using_join_columns,
      store_top_level_join_columns, setup_natural_join_row_types.
    The entry point to processing NATURAL/USING joins is the
    procedure 'setup_natural_join_row_types'.
  - Replaced the specialized Field_iterator_XXX iterators with one
    generic iterator over the fields of a table reference.
  - Simplified 'insert_fields' and 'setup_conds' due to encapsulation of
    the processing of natural joins in a separate set of procedures.
sql/sql_class.h:
  - Commented old code.
sql/sql_delete.cc:
  - Pass the FROM clause to setup_tables.
sql/sql_help.cc:
  - pass the end name resolution table to find_field_in_tables
  - adjust the list of tables for name resolution
sql/sql_insert.cc:
  - Changed the code that saves and restores the current context to
    support the list of tables for name resolution -
    context->first_name_resolution_table, and
    table_list->next_name_resolution_table.
    Needed to support an ugly trick to resolve inserted columns only in
    the first table.
  - Added Name_resolution_context::[first | last]_name_resolution_table.
  - Commented old code
sql/sql_lex.cc:
  - set select_lex.parent_lex correctly
  - set correct state of the current name resolution context
sql/sql_lex.h:
  - Added a stack of name resolution contexts to support local
    contexts for JOIN ... ON conditions.
  - Commented old code.
sql/sql_load.cc:
  - Pass the FROM clause to setup_tables.
sql/sql_olap.cc:
  - Pass the FROM clause to setup_tables.
sql/sql_parse.cc:
  - correctly set SELECT_LEX::parent_lex
  - set the first table of the current name resoltion context
  - added support for NATURAL/USING joins
  - commented old code
sql/sql_select.cc:
  - Pass the FROM clause to setup_tables.
  - Pass the end table to find_field_in_tables
  - Improved comments
sql/sql_show.cc:
  - Set SELECT_LEX::parent_lex.
sql/sql_update.cc:
  - Pass the FROM clause to setup_tables.
sql/sql_yacc.yy:
  - Added support for a stack of name resolution contexts needed to
    implement name resolution for JOIN ... ON. A context is pushed
    for each new JOIN ... ON, and popped afterwards.
  - Added support for NATURAL/USING joins.
sql/table.cc:
  - Added new class Natural_join_column to hide the heterogeneous
    representation of column references for stored tables and for
    views.
  - Added a new list TABLE_LIST::next_name_resolution_table to
    support name resolution with NATURAL/USING joins. Also added
    other members to TABLE_LIST to support NATURAL/USING joins.
  - Added a generic iterator over the fields of table references
    of various types - class Field_iterator_table_ref
sql/table.h:
  - Added new class Natural_join_column to hide the heterogeneous
    representation of column references for stored tables and for
    views.
  - Added a new list TABLE_LIST::next_name_resolution_table to
    support name resolution with NATURAL/USING joins. Also added
    other members to TABLE_LIST to support NATURAL/USING joins.
  - Added a generic iterator over the fields of table references
    of various types - class Field_iterator_table_ref
tests/mysql_client_test.c:
  Adjusted according to standard NATURAL JOIN syntax.

item.cc:
item.h:
  Adding Item_param::safe_charset_converter,
  not to return collation mix error if
  parameter can be converted into operation
  character set.

ctype_utf8.result:
  adding test case
ctype_utf8.test:
  adding test case


sql/item.h:
  Bug #12371 executing prepared statement fails (illegal mix of collations)
  Adding Item_param::safe_charset_converter,
  not to returm collation mix error if
  parameter can be converted into operation
  character set.
sql/item.cc:
  Bug #12371 executing prepared statement fails (illegal mix of collations)
mysql-test/t/ctype_utf8.test:
  adding test case
mysql-test/r/ctype_utf8.result:
  adding

Change bool in C code to my_bool
Added to mysqltest --enable_parsning and --disable_parsing to avoid to have to comment parts of tests
Added comparison of LEX_STRING's and use this to compare file types for view and trigger files.


client/client_priv.h:
  Added OPT_TRIGGERS (to get rid of compiler warning)
client/mysql.cc:
  Added cast to get rid of compiler warning
client/mysqldump.c:
  Added OPT_TRIGGERS (to get rid of compiler warning)
  Abort if we can't write to outfile (even if --ignore-errors is given)
client/mysqltest.c:
  Added --enable_parsning and --disable_parsing to avoid to have to comment parts of tests
include/my_sys.h:
  Make my_progname const
include/my_time.h:
  Avoid using 'bool' in C programs
mysql-test/lib/init_db.sql:
  Align with mysql_create_system_tables
  (Ideally this file should be auto-generated from the above script)
mysql-test/r/mysqltest.result:
  Test for --enable_parsing
mysql-test/r/variables.result:
  Update results after fix for overflow checking of max_heap_table_size
mysql-test/t/information_schema.test:
  USe --enable/disable parsing instead of comments
mysql-test/t/mysqltest.test:
  Test for --enable_parsing
mysql-test/t/sp.test:
  USe --enable/disable parsing instead of comments
mysql-test/t/variables.test:
  Portability fix for 64 bit systems
mysql-test/t/view.test:
  USe --enable/disable parsing instead of comments
mysys/my_init.c:
  May my_progname const
mysys/my_static.c:
  May my_progname const
mysys/thr_lock.c:
  Remove not needed casts
sql-common/my_time.c:
  Change bool -> my_bool as bool is not portable in C programs
sql/field.cc:
  Test number_to_datetime() for -1 instead of < 0 (Safety fix)
  New prototype for TIME_to_timestamp()
sql/item.h:
  Don't have prototypes for both uint32 and ulong as these 'may' be the same thing
sql/item_timefunc.cc:
  New prototype for TIME_to_timestamp()
sql/log.cc:
  Remove compiler warnings
sql/mysql_priv.h:
  New prototype for TIME_to_timestamp()
  Added function for comparing LEX_STRING
sql/set_var.cc:
  Added overflow checking when setting ulong variable
sql/sql_base.cc:
  Added function is_equal()
  Changed strncmp -> is_equal() as strncmp() to not match "V" (instead of "VIEW")
sql/sql_class.cc:
  Added comment
sql/sql_select.cc:
  Portability fixes
  After review fixes
sql/sql_trigger.cc:
  Use 'tables_alias_charset' for comparing database name
  Use 'is_equal()' to compare file type. (Old code didn't do the comparison correctly)
sql/sql_view.cc:
  Use 'is_equal()' to compare file type. (Old code didn't do the comparison correctly)
sql/time.cc:
  New prototype for TIME_to_timestamp() to allow easyer mapping to C function
sql/tztime.cc:
  bool -> my_bool (to allow calling C code from C++ code)
sql/tztime.h:
  bool -> my_bool (to allow calling C code from C++ code)

  Post review change in Item_ref::get_tmp_table_field (bug #11412).


sql/item.h:
  Post review change in Item_ref::get_tmp_table_field (bug #11412).

  Adding test
item_sum.cc:
  Adding a call for collation/charset aggregation,
      to collect attributes from the arguments. The actual bug fix.
item_func.h, item_func.cc, item.h, item.cc:
  - Removing collation aggrgation functions from Item_func class
      in item.cc, and adding it as non-class functions in item.cc
      to be able to reuse this code for group_concat.
      - Adding replacement for these functions into Item_func class
      as wrappers for moved functions, to minizize patch size,


sql/item.cc:
  - Removing collation aggrgation functions from Item_func class
      in item.cc, and adding it as non-class functions in item.cc
      to be able to reuse this code for group_concat.
      - Adding replacement for these functions into Item_func class
      as wrappers for moved functions, to minizize patch size,
sql/item.h:
  - Removing collation aggrgation functions from Item_func class
      in item.cc, and adding it as non-class functions in item.cc
      to be able to reuse this code for group_concat.
      - Adding replacement for these functions into Item_func class
      as wrappers for moved functions, to minizize patch size,
sql/item_func.cc:
  - Removing collation aggrgation functions from Item_func class
      in item.cc, and adding it as non-class functions in item.cc
      to be able to reuse this code for group_concat.
      - Adding replacement for these functions into Item_func class
      as wrappers for moved functions, to minizize patch size,
sql/item_func.h:
  - Removing collation aggrgation functions from Item_func class
      in item.cc, and adding it as non-class functions in item.cc
      to be able to reuse this code for group_concat.
      - Adding replacement for these functions into Item_func class
      as wrappers for moved functions, to minizize patch size,
sql/item_sum.cc:
  Adding a call for collation/charset aggregation,
      to collect attributes from the arguments. The actual bug fix.
mysql-test/t/func_gconcat.test:
  Adding test
mysql-test/r/func_gconcat.result:
  Adding test

  Fixed bug #11412.
  Reversed the patch of cs 1.1934 for the function 
  create_tmp_table. Modified the function to support
  tem_ref objects created for view fields.
item_buff.cc:
  Fixed bug #11412.
  Modified implementation of new_Cached_item to support
  cacheing of view fields.
item.h:
  Fixed bug #11412.
  Changed implementation of Item_ref::get_tmp_table_field and
  added Item_ref::get_tmp_table_item to support Item_ref objects
  created for view fields.
view.test, view.result:
  Added a test case for bug #11412.


mysql-test/r/view.result:
  Added a test case for bug #11412.
mysql-test/t/view.test:
  Added a test case for bug #11412.
sql/item.h:
  Fixed bug #11412.
  Changed implementation of Item_ref::get_tmp_table_field and
  added Item_ref::get_tmp_table_item to support Item_ref objects
  created for view fields.
sql/item_buff.cc:
  Fixed bug #11412.
  Modified implementation of new_Cached_item to support
  cacheing of view fields.
sql/sql_select.cc:
  Fixed bug #11412.
  Reverse...

variables. (Bug #10351)


mysql-test/r/variables.result:
  Update results
mysql-test/t/variables.test:
  Add regression test
sql/item.h:
  Add Item_uint(ulong) constructor
sql/mysqld.cc:
  Fix default/max max_seeks_for_key to UINT_MAX32
sql/set_var.cc:
  Use correct Item_uint() constructors in sys_var::item()

  "Triggers have the wrong namespace"
  "Triggers: duplicate names allowed"
  "Triggers: CREATE TRIGGER does not accept fully qualified names"
  "SHOW TRIGGERS"


mysql-test/r/information_schema.result:
  Added tests for new INFORMATION_SCHEMA.TRIGGERS view and SHOW TRIGGERS command.
mysql-test/r/information_schema_db.result:
  INFORMATION_SCHEMA.TRIGGERS view was added.
mysql-test/r/rpl_sp.result:
  Now DROP TRIGGER interprets first part of trigger identifier as database
  name and not as table name. Adjusted tests properly.
mysql-test/r/trigger.result:
  Now DROP TRIGGER interprets first part of trigger identifier as database
  name and not as table name. Adjusted tests properly.
  Added test checking that triggers have database wide namespace.
  Added test for bug #8791 "Triggers: Allowed to create triggers on a subject
  table in a different DB".
mysql-test/r/view.result:
  Now DROP TRIGGER interprets first part of trigger identifier as database
  name and not as table name. Adjusted tests properly.
mysql-test/t/information_schema.test:
  Added tests for new INFORMATION_SCHEMA.TRIGGERS view and SHOW TRIGGERS command.
mysql-test/t/rpl_sp.test:
  Now DROP TRIGGER interprets first part of trigger identifier as database
  name and not as table name. Adjusted tests properly.
mysql-test/t/trigger.test:
  Now DROP TRIGGER interprets first part of trigger identifier as database
  name and not as table name. Adjusted tests properly.
  Added test checking that triggers have database wide namespace.
  Added test for bug #8791 "Triggers: Allowed to create triggers on a subject
  table in a different DB".
mysql-test/t/view.test:
  Now DROP TRIGGER interprets first part of trigger identifier as database
  name and not as table name. Adjusted tests properly.
sql/handler.cc:
  Added .TRN tho the list of known file extensions assoicated with tables.
sql/item.h:
  trg_action_time_type/trg_event_type enums:
    Added TRG_ACTION_MAX/TRG_EVENT_MAX elements which should be used instead of
    magical values in various loops where we iterate through all types of trigger
    action times or/and trigger event types.
sql/lex.h:
  Added new symbol "TRIGGERS".
sql/mysql_priv.h:
  Added declaration of constant holding extension for trigger name (.TRN) files.
sql/mysqld.cc:
  Added statistical variable for SHOW TRIGGERS command.
sql/share/errmsg.txt:
  Added error message saying that one attempts to create trigger in wrong schema.
sql/sp.cc:
  Replaced magical values with TRG_EVENT_MAX/TRG_ACTION_MAX constants.
sql/sql_base.cc:
  open_unireg_entry():
    Now Table_triggers_list::check_n_load() has one more argument which
    controls whether we should prepare Table_triggers_list with fully functional
    triggers or load only their names.
sql/sql_lex.h:
  Added element for new SHOW TRIGGERS command to enum_sql_command enum.
sql/sql_parse.cc:
  prepare_schema_table():
    Added support for SHOW TRIGGERS statement.
sql/sql_show.cc:
  Added new INFORMATION_SCHEMA.TRIGGERS view and SHOW TRIGGERS command.
sql/sql_table.cc:
  mysql_rm_table_part2():
    Replaced simple deletion of .TRG file with call to
    Table_triggers_list::drop_all_triggers which will also delete .TRN files
    for all triggers associated with table.
sql/sql_trigger.cc:
  Now triggers have database wide namespace. To support it we create special .TRN
  file with same name as trigger for each trigger. This file contains name of
  trigger's table so one does not need to specify it explicitly in DROP TRIGGER.
  Moreover DROP TRIGGER treats first part of trigger identifier as database name
  now. Updated mysql_create_or_drop_trigger() routine and
  Table_triggers_list::create_trigger()/drop_trigger()/check_n_load() methods
  accordingly. Added add_table_for_trigger() routine and
  Table_triggers_list::drop_all_triggers() method.
  
  Added Table_triggers_list::get_trigger_info() for obtaining trigger metadata.
sql/sql_trigger.h:
  Table_triggers_list:
    Use TRG_EVENT_MAX, TRG_ACTION_MAX instead of magic values.
    Added get_trigger_info() method for obtaining trigger's meta-data.
    Added drop_all_triggers() method which drops all triggers for table.
    Added declarations of trg_action_time_type_names/trg_event_type_names
    arrays which hold names of triggers action time types  and event types.
sql/sql_yacc.yy:
  Changed grammar for CREATE/DROP TRIGGER to support database wide trigger
  namespace. Added new SHOW TRIGGERS statement.
sql/table.h:
  enum enum_schema_tables:
    Added constant for new INFORMATION_SCHEMA.TRIGGERS view.