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
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
displays error
When returning to the old database (which may be ""), don't do
access check - mysql_change_db() would then generate the error
"No database selected".
Note: No test case added; it seems a db is always selected when running
tests.
sql/sp_head.cc:
Don't do access check when returning to db after a call.
displays error
When returning to the old database (which may be ""), don't do
access check - mysql_change_db() would then generate the error
"No database selected".
Note: No test case added; it seems a db is always selected when running
tests.
Search the chain of sp_rcontexts recursively for handlers. If one is found,
it will be detected in the sp_head::execute() method at the corresponding
level.
mysql-test/r/sp.result:
New test case for BUG#7049.
Note that the spurious warnings in the BUG#12379 test now are gone (as expected).
mysql-test/t/sp.test:
New test case for BUG#7049.
sql/sp_head.cc:
Link sp_rcontexts to allow catching errors across invokation boundaries.
(Also fixed print method for the hreturn instruction.)
sql/sp_rcontext.cc:
Link sp_rcontexts to allow catching errors across invokation boundaries.
If a handler is not found in the current sp_rcontext, recurse into the previous ones (if any).
sql/sp_rcontext.h:
Link sp_rcontexts to allow catching errors across invokation boundaries.
Search the chain of sp_rcontexts recursively for handlers. If one is found,
it will be detected in the sp_head::execute() method at the corresponding
level.
Replaced the dumb in-handler/not-in-handler check with a proper recursion
check of handlers being executed.
(Re-commit in a different tree, to make push possible.)
mysql-test/r/sp.result:
New test case for BUG#6127.
mysql-test/t/sp.test:
New test case for BUG#6127.
sql/sp_head.cc:
Replaced the setting of ctx->in_handler with a enter/exit handler methods.
sql/sp_rcontext.cc:
Replaced the boolean in_handler flag with a stack of handlers being exectuted, for proper recursion check.
sql/sp_rcontext.h:
Replaced the boolean in_handler flag with a stack of handlers being exectuted, for proper recursion check.
(And added some comments in the sp_rcontext class.)
Replaced the dumb in-handler/not-in-handler check with a proper recursion
check of handlers being executed.
(Re-commit in a different tree, to make push possible.)
into mysql.com:/opt/local/work/mysql-5.0-root
BitKeeper/etc/ignore:
auto-union
include/my_sys.h:
Auto merged
mysql-test/r/information_schema.result:
Auto merged
mysql-test/t/ctype_ujis.test:
Auto merged
sql/ha_federated.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/item_func.h:
Auto merged
sql/log.cc:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sp_head.h:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_prepare.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_view.cc:
Auto merged
sql/table.cc:
Auto merged
cursor is interpreted latin1 character and Bug#9819 "Cursors: Mysql Server
Crash while fetching from table with 5 million records."
A fix for a possible memory leak when fetching into an SP cursor
in a long loop.
The patch uses a common implementation of cursors in the binary protocol and
in stored procedures and implements materialized cursors.
For implementation details, see comments in sql_cursor.cc
include/my_sys.h:
- declaration for multi_alloc_root
libmysqld/Makefile.am:
- drop protocol_cursor.cc, add sql_cursor.cc (replaces the old
implementation of cursors with a new one)
mysql-test/r/ctype_ujis.result:
- test results fixed (a test case for Bug#6513)
mysql-test/r/sp-big.result:
- test results fixed (a test case for Bug#9819)
mysql-test/t/ctype_ujis.test:
Add a test case for Bug#6513 "Test Suite: Values inserted by using cursor is
interpreted latin1 character"
mysql-test/t/sp-big.test:
Add a restricted test case for Bug#9819 "Cursors: Mysql Server Crash
while fetching from table with 5 million records."
mysys/my_alloc.c:
- an implementation of multi_alloc_root; this is largely a copy-paste
from mulalloc.c, but the function is small and there is no easy way
to reuse the existing C function.
sql/Makefile.am:
- add sql_cursor.h, sql_cursor.cc (a new implementation of stored procedure
cursors) and drop protocol_cursor.cc (the old one)
sql/handler.cc:
- now TABLE object has its mem_root always initialized.
Adjust the implementation handler::ha_open
sql/item_subselect.cc:
- adjust to the changed declaration of st_select_lex_unit::prepare
sql/protocol.h:
- drop Protocol_cursor
sql/sp_head.cc:
- move juggling with Query_arena::free_list and Item::next to
sp_eval_func_item, as this is needed in 3 places already.
sql/sp_head.h:
- declare a no-op implementation for cleanup_stmt in sp_instr_cpush.
This method is needed for non-materializing cursors, which are yet not
used in stored procedures.
- declaration for sp_eval_func_item
sql/sp_rcontext.cc:
- reimplement sp_cursor using the new implementation of server side cursors.
- use sp_eval_func_item to assign values of SP variables from the
row fetched from a cursor. This should fix a possible memory leak in
the old implementation of sp_cursor::fetch
sql/sp_rcontext.h:
- reimplement sp_cursor using the new implementation of server side cursors.
sql/sql_class.cc:
- disable the functionality that closes transient cursors at commit/rollback;
transient cursors are not used in 5.0, instead we use materialized ones.
To be enabled in a later version.
sql/sql_class.h:
- adjust to the rename Cursor -> Server_side_cursor
- additional declarations of select_union used in materialized cursors
sql/sql_derived.cc:
- reuse bits of tmp table code in UNION, derived tables, and materialized
cursors
- cleanup comments
sql/sql_lex.h:
- declarations of auxiliary methods used by materialized cursors
- a cleanup in st_select_lex_unit interface
sql/sql_list.h:
- add an array operator new[] to class Sql_alloc
sql/sql_prepare.cc:
- split the tight coupling of cursors and prepared statements to reuse
the same implementation in stored procedures
- cleanups of error processing in Prepared_statement::{prepare,execute}
sql/sql_select.cc:
- move the implementation of sensitive (non-materializing) cursors to
sql_cursor.cc
- make temporary tables self-contained: the table, its record and fields
are allocated in TABLE::mem_root. This implementation is not clean
and resets thd->mem_root several times because of the way create_tmp_table
works (many additional things are done inside it).
- adjust to the changed declaration of st_select_lex_unit::prepare
sql/sql_select.h:
- move the declaration of sensitive (non-materializing) cursors to
sql_cursor.cc
sql/sql_union.cc:
- move pieces of st_select_unit::prepare to select_union and st_table
methods to be able to reuse code in the implementation of materialized
cursors
sql/sql_view.cc:
- adjust to the changed signature of st_select_lex_unit::prepare
sql/table.cc:
- implement auxiliary st_table methods for use with temporary tables
sql/table.h:
- add declarations for auxiliary methods of st_table used to work with
temporary tables
tests/mysql_client_test.c:
- if cursors are materialized, a parallel update of the table used
in the cursor may go through: update the test.
sql/sql_cursor.cc:
New BitKeeper file ``sql/sql_cursor.cc'' -- implementation of server side
cursors
sql/sql_cursor.h:
New BitKeeper file ``sql/sql_cursor.h'' - declarations for
server side cursors.
cursor is interpreted latin1 character and Bug#9819 "Cursors: Mysql Server
Crash while fetching from table with 5 million records."
A fix for a possible memory leak when fetching into an SP cursor
in a long loop.
The patch uses a common implementation of cursors in the binary protocol and
in stored procedures and implements materialized cursors.
For implementation details, see comments in sql_cursor.cc
Part 2 postreview fixes.
sql/ha_innodb.cc:
Renamed structure st_security_context to class Security_context
sql/item_func.cc:
Renamed structure st_security_context to class Security_context
sql/item_strfunc.cc:
fixed USER() function
sql/log.cc:
variable used to optimize access to security context
sql/mysql_priv.h:
Renamed structure st_security_context to class Security_context
sql/mysqld.cc:
main security context used direcly
sql/sp_head.cc:
Renamed structure st_security_context to class Security_context
removed unneed variable
sql/sp_head.h:
Comment inmroved
Renamed structure st_security_context to class Security_context
sql/sql_acl.cc:
Renamed structure st_security_context to class Security_context
fixed function comment and return value
variable used to optimize access to security context
Renamed method of Security_ontext
sql/sql_acl.h:
fixed return value type
sql/sql_class.cc:
Renamed structure st_security_context to class Security_context
sql/sql_class.h:
Renamed structure st_security_context to class Security_context
Method renamed
sql/sql_db.cc:
Renamed structure st_security_context to class Security_context
fixed layout
sql/sql_parse.cc:
registration of wanted access for underlying tables
sql/sql_show.cc:
Renamed structure st_security_context to class Security_context
fixed layout
sql/sql_yacc.yy:
Renamed structure st_security_context to class Security_context
into mysql.com:/home/dlenev/src/mysql-5.0-bg12704-2
sql/mysql_priv.h:
Auto merged
sql/sp.cc:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_prepare.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_update.cc:
Auto merged
This bug occurs when some trigger for table used by DML statement is created
or changed while statement was waiting in lock_tables(). In this situation
prelocking set which we have calculated becames invalid which can easily lead
to errors and even in some cases to crashes.
With proposed patch we no longer silently reopen tables in lock_tables(),
instead caller of lock_tables() becomes responsible for reopening tables and
recalculation of prelocking set.
mysql-test/t/trigger.test:
Added tests for bug #12704 "Server crashes during trigger execution".
Unfortunately these tests rely on the order in which tables are locked
by statement so they are non-determenistic and therefore should be disabled.
sql/lock.cc:
mysql_lock_tables():
Now instead of always reopening altered or dropped tables by itself
mysql_lock_tables() can notify upper level and rely on caller doing this.
sql/mysql_priv.h:
Now mysql_lock_tables() can either reopen deleted or altered tables by itself
or notify caller about such situation through 'need_reopen' argument and rely
on it in this.
Also lock_tables() has new 'need_reopen' out parameter through which it
notifies caller that some tables were altered or dropped so he needs to reopen
them (and rebuild prelocking set some triggers may change or simply appear).
sql/sp.cc:
sp_add_used_routine():
To be able to restore LEX::sroutines_list to its state right after parsing
we now adjust LEX::sroutines_list_own_last/sroutines_list_own_elements when
we add directly used routine.
sp_remove_not_own_routines():
Added procedure for restoring LEX::sroutines/sroutines_list to their state
right after parsing (by throwing out non-directly used routines).
sp_cache_routines_and_add_tables_for_view()/sp_update_stmt_used_routines():
We should use LEX::sroutines_list instead of LEX::sroutines as source of
routines used by view, since LEX::sroutines is not availiable for view
on second attempt to open it (see comment in open_tables() about it).
sql/sp.h:
sp_remove_not_own_routines():
Added procedure for restoring LEX::sroutines/sroutines_list to their state
right after parsing (by throwing out non-directly used routines).
sql/sp_head.cc:
Removed assert which is no longer always true.
sql/sql_base.cc:
reopen_table():
When we re-open table and do shallow copy of TABLE object we should adjust
pointers to it in associated Table_triggers_list object. Removed nil
operation.
open_tables():
Now this function is able to rebuild prelocking set for statement if it is
needed. It also correctly handles FLUSH TABLES which may occur during its
execution.
lock_tables():
Instead of allowing mysql_lock_tables() to silently reopen altered or dropped
tables let us notify caller and rely on that it will do reopen itself.
This solves the problem when trigger suddenly appears or changed during
mysq_lock_tables().
close_tables_for_reopen():
Added routine for properly preparing for reopening of tables and recalculation
of set of prelocked tables.
sql/sql_handler.cc:
Here we let mysql_lock_tables() to reopen dropped or altered tables by itself.
sql/sql_insert.cc:
Here we let mysql_lock_tables() to reopen dropped or altered tables by itself.
sql/sql_lex.cc:
LEX:
Added 'sroutines_list_own_last' and 'sroutines_list_own_elements' members
which are used for keeping state in which 'sroutines_list' was right after
statement parsing (and for restoring of this list to this state).
sql/sql_lex.h:
LEX:
Added 'sroutines_list_own_last' and 'sroutines_list_own_elements' members
which are used for keeping state in which 'sroutines_list' was right after
statement parsing (and for restoring of this list to this state).
Added chop_off_not_own_tables() method to simplify throwing away list
of implicitly used (prelocked) tables.
sql/sql_prepare.cc:
Now instead of silently reopening altered or dropped tables in
lock_tables() we notify caller and rely on that the caller will
reopen tables.
sql/sql_table.cc:
Here we let mysql_lock_tables() to reopen dropped or altered tables by itself.
sql/sql_trigger.cc:
Added Table_triggers_list::set_table() method to adjust Table_triggers_list
to new pointer to TABLE instance.
sql/sql_trigger.h:
Added Table_triggers_list::set_table() method to adjust Table_triggers_list
to new pointer to TABLE instance.
sql/sql_update.cc:
Now instead of silently reopening altered or dropped tables in
lock_tables() we notify caller and rely on that the caller will
reopen tables.
This bug occurs when some trigger for table used by DML statement is created
or changed while statement was waiting in lock_tables(). In this situation
prelocking set which we have calculated becames invalid which can easily lead
to errors and even in some cases to crashes.
With proposed patch we no longer silently reopen tables in lock_tables(),
instead caller of lock_tables() becomes responsible for reopening tables and
recalculation of prelocking set.
Have to init. all local variables in their frames, not just once at the beginning
of invocation.
mysql-test/r/sp.result:
New test case for BUG#13133.
mysql-test/t/sp.test:
New test case for BUG#13133.
sql/sp_head.cc:
Just init. local variable slots in the fram to NULL. (Real init. will be done
in each block.)
sql/sp_pcontext.cc:
Removed isset flag, since it's not used.
sql/sp_pcontext.h:
Removed isset flag, since it's not used.
sql/sql_yacc.yy:
Initialize local variables in the block to null, or the default value, given.
(Untabifed block too.)
thd->user_var_events_alloc (and so get binlog events to be allocated on its pool),
clean the binlog events after the execution of this SP statement is finished.
thd->user_var_events_alloc (and so get binlog events to be allocated on its pool),
clean the binlog events after the execution of this SP statement is finished.
into mysql.com:/home/psergey/mysql-5.0-bug12943
mysql-test/r/sp.result:
Auto merged
mysql-test/t/sp.test:
Auto merged
sql/item_func.cc:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
(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
* Allocate thd->user_var_events elements on appropriate mem_root
* If several SP statements are binlogged as a single statement, collect all user var
accesses they make (grep for StoredRoutinesBinlogging for details)
mysql-test/r/rpl_sp_effects.result:
Testcase for BUG#12637
mysql-test/r/sp.result:
re-enabled test case for BUG#12297
mysql-test/t/rpl_sp_effects.test:
Testcase for BUG#12637
mysql-test/t/sp.test:
re-enabled test case for BUG#12297
sql/item_func.cc:
Fix for BUG#12637: Make SPs+user variables replication work:
* Allocate thd->user_var_events elements on appropriate mem_root
* If several SP statements are binlogged as a single statement, collect all user var
accesses they make.
sql/log.cc:
Fix for BUG#12637: Make SPs+user variables replication work:
* Allocate thd->user_var_events elements on appropriate mem_root
* If several SP statements are binlogged as a single statement, collect all user var
accesses they make.
sql/sp_head.cc:
Fix for BUG#12637: Make SPs+user variables replication work:
* Allocate thd->user_var_events elements on appropriate mem_root
* If several SP statements are binlogged as a single statement, collect all user var
accesses they make.
sql/sp_head.h:
Remove compiler warning.
sql/sql_class.h:
Fix for BUG#12637: Make SPs+user variables replication work.
sql/sql_parse.cc:
Fix for BUG#12637: Make SPs+user variables replication work.
* Allocate thd->user_var_events elements on appropriate mem_root
* If several SP statements are binlogged as a single statement, collect all user var
accesses they make (grep for StoredRoutinesBinlogging for details)
The idea of the patch is to separate statement processing logic,
such as parsing, validation of the parsed tree, execution and cleanup,
from global query processing logic, such as logging, resetting
priorities of a thread, resetting stored procedure cache, resetting
thread count of errors and warnings.
This makes PREPARE and EXECUTE behave similarly to the rest of SQL
statements and allows their use in stored procedures.
This patch contains a change in behaviour:
until recently for each SQL prepared statement command, 2 queries
were written to the general log, e.g.
[Query] prepare stmt from @stmt_text;
[Prepare] select * from t1 <-- contents of @stmt_text
The chagne was necessary to prevent [Prepare] commands from being written
to the general log when executing a stored procedure with Dynamic SQL.
We should consider whether the old behavior is preferrable and probably
restore it.
This patch refixes Bug#7115, Bug#10975 (partially), Bug#10605 (various bugs
in Dynamic SQL reported before it was disabled).
mysql-test/r/not_embedded_server.result:
Since we don't want to log Dynamic SQL in stored procedures,
now the general log gets only one log entry per SQL statement.
mysql-test/r/sp-error.result:
- remove obsolete tests
- a better error message for the case when a stored procedure that
returns a result set is called from a function
mysql-test/r/trigger.result:
- a better error message for the case when a stored procedure that
returns a result set is called from a trigger
mysql-test/t/sp-error.test:
- a better error message for the case when a stored procedure that
returns a result set is called from a function.
- move the comment to its place (end of file).
mysql-test/t/trigger.test:
- a better error message for the case when a stored procedure that
returns a result set is called from a trigger
sql/item_func.cc:
- we need to pass sql_command explicitly to get_var_with_binlog, because
when creating a query for SQL prepared statement thd->lex->sql_command
points at SQLCOM_EXECUTE, which is not listed in the list of update
queries.
sql/log_event.h:
- remove an extra copy of the previous sentence
sql/mysql_priv.h:
- fix declarations of sql_prepare.cc API
sql/share/errmsg.txt:
- a new error message, when one attempts to execute a prepared statement
which is currently being executed (this can happen only in Dynamic SQL
at the moment).
sql/sp_head.cc:
- extend sp_multi_results_command to return different flags for a
command (and rename it)
- add support for SQLCOM_PREPARE,SQLCOM_EXECUTE, SQLCOM_DEALLOCATE
to sp_get_flags_for_command
- replace multiple boolean sp_head members with uint m_flags
- a fix for a crash when user variables are used in a stored procedure
and binlog is on. A temporary fix for Bug#12637 "SP crashes the server
if it has update query with user var & binlog is enabled", which actually
stands for stored functions: now instead of a crash we break
replication if a user variable is used in a stored function which
is executed in prelocked mode.
sql/sp_head.h:
- replace multiple boolean flags of sp_head with uint m_flags;
- add flag CONTAINS_DYNAMIC_SQL
- use this flag to error if a stored procedure with Dynamic SQL is
called from a function or trigger.
sql/sql_class.cc:
- Statement_map::insert should not delete a statement if it exists,
now it's done externally to be able to handle the case when the
statement being deleted is in use.
- remove extra code (free_list is already reset in free_items)
sql/sql_lex.cc:
- add lex->stmt_prepare_mode; we can't rely on thd->command any more,
because we don't reset it any more (Dynamic SQL requirement is that
PS are as little intrusive as possible).
sql/sql_lex.h:
- declare bool LEX::stmt_prepare_mode
sql/sql_parse.cc:
- move prepared statement code to sql_prepare.cc
- change declarations (refactored code)
- better error message when one attempts to use Dynamic SQL or a
stored procedure that returns a result set in a function or trigger.
sql/sql_prepare.cc:
- major refactoring to ensure PREPARE/EXECUTE commands do not reset global THD
state and allow their use in stored procedures.
- add Prepared_statement::flags and use it to ensure no recursive execution
of a prepared statement is possible
- better comments
sql/sql_yacc.yy:
- enable PREPARE/EXECUTE/DEALLOCATE in stored procedures
- produce an error message on attempt to use PREPARE/EXECUTE/DEALLOCATE
in a stored function or trigger
mysql-test/r/sp-dynamic.result:
- sp-dynamic.test results
mysql-test/t/sp-dynamic.test:
- a new test for PREPARE/EXECUTE/DEALLOCATE in stored procedures.
The idea of the patch is to separate statement processing logic,
such as parsing, validation of the parsed tree, execution and cleanup,
from global query processing logic, such as logging, resetting
priorities of a thread, resetting stored procedure cache, resetting
thread count of errors and warnings.
This makes PREPARE and EXECUTE behave similarly to the rest of SQL
statements and allows their use in stored procedures.
This patch contains a change in behaviour:
until recently for each SQL prepared statement command, 2 queries
were written to the general log, e.g.
[Query] prepare stmt from @stmt_text;
[Prepare] select * from t1 <-- contents of @stmt_text
The chagne was necessary to prevent [Prepare] commands from being written
to the general log when executing a stored procedure with Dynamic SQL.
We should consider whether the old behavior is preferrable and probably
restore it.
This patch refixes Bug#7115, Bug#10975 (partially), Bug#10605 (various bugs
in Dynamic SQL reported before it was disabled).
- current_arena to stmt_arena: the thread may have more than one
'current' arenas: one for runtime data, and one for the parsed
tree of a statement. Only one of them is active at any moment.
- set_item_arena -> set_query_arena, because Item_arena was renamed to
Query_arena a while ago
- set_n_backup_item_arena -> set_n_backup_active_arena;
the active arena is the arena thd->mem_root and thd->free_list
are currently pointing at.
- restore_backup_item_arena -> restore_active_arena (with the same
rationale)
- change_arena_if_needed -> activate_stmt_arena_if_needed; this
method sets thd->stmt_arena active if it's not done yet.
sql/item.cc:
Rename.
sql/item_cmpfunc.cc:
Rename.
sql/item_func.cc:
Rename.
sql/item_subselect.cc:
Rename.
sql/item_subselect.h:
Remove an unused forward declaration.
sql/item_sum.h:
Remove an unused forward declaration.
sql/mysql_priv.h:
Remove an unused forward declaration.
sql/sp.cc:
Rename.
sql/sp_head.cc:
Rename.
sql/sql_base.cc:
Rename.
sql/sql_class.cc:
Rename.
sql/sql_class.h:
Rename.
sql/sql_lex.cc:
Rename.
sql/sql_parse.cc:
Rename.
sql/sql_prepare.cc:
Rename.
sql/sql_select.cc:
Rename.
sql/sql_show.cc:
Rename.
sql/sql_union.cc:
Rename.
sql/sql_view.cc:
Rename.
sql/table.cc:
Rename.
- current_arena to stmt_arena: the thread may have more than one
'current' arenas: one for runtime data, and one for the parsed
tree of a statement. Only one of them is active at any moment.
- set_item_arena -> set_query_arena, because Item_arena was renamed to
Query_arena a while ago
- set_n_backup_item_arena -> set_n_backup_active_arena;
the active arena is the arena thd->mem_root and thd->free_list
are currently pointing at.
- restore_backup_item_arena -> restore_active_arena (with the same
rationale)
- change_arena_if_needed -> activate_stmt_arena_if_needed; this
method sets thd->stmt_arena active if it's not done yet.
Fix crash reported in bug 12849.
It doesn't fix the whole problem though.
Let Pem fix it later.
sql/sp_head.cc:
Fix crash reported in bug 12849.
It doesn't fix the whole problem though.
Let Pem fix it later.
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
