open a file that already existed. The problem was that end_io_cache()
was called even if init_io_cache() was not. This affected both
OUTFILE and DUMPFILE (both fixed). Sometimes wrongly aligned pointer was freed,
sometimes mysqld core dumped.
Other problem was that select_dump::send_error removed the dumpfile,
even if it was created by an earlier run, or by some other program, if
the file permissions just permitted it. Fixed it so that the file will
only be deleted, if an error occurred, but the file was created by mysqld
just a moment ago, in that thread.
On the other hand, select_export did not handle the corresponding garbage
file at all. Both fixed.
After these fixes, a big part of the select_export::prepare and select_dump::prepare
code became identical. Merged the code into a new function called create_file(),
which is now called by the two latter functions.
Regards,
Jani
mysys/mf_iocache.c:
Fixed a bug in comment.
open a file that already existed. The problem was that end_io_cache()
was called even if init_io_cache() was not. This affected both
OUTFILE and DUMPFILE (both fixed). Sometimes wrongly aligned pointer was freed,
sometimes mysqld core dumped.
Other problem was that select_dump::send_error removed the dumpfile,
even if it was created by an earlier run, or by some other program, if
the file permissions just permitted it. Fixed it so that the file will
only be deleted, if an error occurred, but the file was created by mysqld
just a moment ago, in that thread.
On the other hand, select_export did not handle the corresponding garbage
file at all. Both fixed.
After these fixes, a big part of the select_export::prepare and select_dump::prepare
code became identical. Merged the code into a new function called create_file(),
which is now called by the two latter functions.
Regards,
Jani
(BUG#2089)
mysql-test/r/subselect_innodb.result:
correct results
sql/mysql_priv.h:
new parameter for setup_tables()
sql/sql_base.cc:
new parameter for setup_tables() added to avoid dropping query_id of fields during reinitialization subquery
sql/sql_class.cc:
layout fixed
sql/sql_help.cc:
new parameter for setup_tables()
sql/sql_insert.cc:
new parameter for setup_tables()
sql/sql_lex.cc:
removed incorrect code
sql/sql_load.cc:
new parameter for setup_tables()
sql/sql_olap.cc:
new parameter for setup_tables()
sql/sql_prepare.cc:
new parameter for setup_tables()
sql/sql_select.cc:
new parameter for setup_tables()
sql/sql_update.cc:
new parameter for setup_tables()
broken with recent changes' (attempt 2).
Adding Statement_core is better because:
- set_statement() code is shorter and you don't need to modify it when adding
new members to Statement_core
- a bit faster (you don't have virtual call and don't free_root() twice)
Do that short patch instead in hope that set_statement() will be sooner or
later removed entirely
sql/sql_class.cc:
short patch for bug #2184 'Prepared statements in embedded library was
broken with recent changes'
sql/sql_class.h:
short patch for bug #2184 'Prepared statements in embedded library
was broken with recent changes'
broken with recent changes' (attempt 2).
Adding Statement_core is better because:
- set_statement() code is shorter and you don't need to modify it when adding
new members to Statement_core
- a bit faster (you don't have virtual call and don't free_root() twice)
Do that short patch instead in hope that set_statement() will be sooner or
later removed entirely
(Fixed project files, compiler warnings etc..)
BitKeeper/etc/ignore:
added mysql_priv.h
VC++Files/libmysqld/libmysqld.dsp:
Update for VC++to
VC++Files/sql/mysqld.dsp:
Update for VC++
client/mysqlbinlog.cc:
Remove not used variable
sql-common/client.c:
Fix for compilation with VC++
sql/filesort.cc:
Remove not used variable
sql/item_timefunc.cc:
Fixed compiler warnings
sql/log_event.cc:
Fixed compiler warnings
- One can't portable allocate an stack-array dynamicly
- Changed sql_mode to ulong to match THD.variables.sql_mode (If they are not the same we get a lot of compiler warnings)
sql/log_event.h:
Changed sql_mode to ulong to match THD.variables.sql_mode (If they are not the same we get a lot of compiler warnings)
sql/sp.cc:
sql_mode to ulong
Don't use strcpy
Replaced sprintf() with strmov
sql/sp_cache.cc:
Fixed compiler warning
sql/sp_head.cc:
Removed not used variable
sql/sp_rcontext.cc:
Removed not used variable
sql/sp_rcontext.h:
Fixed compiler warning
sql/sql_class.cc:
Portability fix
sql/sql_delete.cc:
Fixed compiler warning
sql/sql_insert.cc:
Fixed compiler warning
sql/sql_update.cc:
Fixed compiler warning
libmysqld/lib_sql.cc:
Prepared_statement now resides entirely in sql_prepare.cc
Embedded versions of setup_params_data moved to sql_prepare.cc
sql/mysql_priv.h:
removed declarations for non-existing functions
sql/slave.cc:
no thd->init_for_queries() any more
sql/sql_class.cc:
added Statement and Statement_map classes.
PREP_STMT replaced with Statement (Prepared_statement) and moved to
sql_prepare.cc
sql/sql_class.h:
added Statement and Statement_map classes.
PREP_STMT replaced with Statement (Prepared_statement) and moved to
sql_prepare.cc
sql/sql_parse.cc:
thd->init_for_queries() doesn't exist any more
comment moved to proper place
sql/sql_prepare.cc:
PREP_STMT replaced with Prepared_statement
minor code cleanups
tests/client_test.c:
Later in the test we rely on order of rows, which normally is not defined.
My patch changes the order.
All tests pass (client_test included)
libmysqld/lib_sql.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/filesort.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/ha_innodb.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/ha_myisam.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/item.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/item_cmpfunc.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/item_create.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/item_func.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/item_subselect.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/item_sum.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/mysql_priv.h:
THD::lex now points to THD::main_lex like in 5.0
sql/mysqld.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/protocol.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/repl_failsafe.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/slave.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_acl.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_base.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_cache.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_class.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_class.h:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_delete.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_error.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_insert.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_lex.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_lex.h:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_parse.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_prepare.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_repl.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_select.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_table.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_union.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_update.cc:
THD::lex now points to THD::main_lex like in 5.0
sql/sql_yacc.yy:
THD::lex now points to THD::main_lex like in 5.0
This is the main commit for Worklog tasks:
* A more dynamic binlog format which allows small changes (1064)
* Log session variables in Query_log_event (1063)
Below 5.0 means 5.0.0.
MySQL 5.0 is able to replicate FOREIGN_KEY_CHECKS, UNIQUE_KEY_CHECKS (for speed),
SQL_AUTO_IS_NULL, SQL_MODE. Not charsets (WL#1062), not some vars (I can only think
of SQL_SELECT_LIMIT, which deserves a special treatment). Note that this
works for queries, except LOAD DATA INFILE (for this it would have to wait
for Dmitri's push of WL#874, which in turns waits for the present push, so...
the deadlock must be broken!). Note that when Dmitri pushes WL#874 in 5.0.1,
5.0.0 won't be able to replicate a LOAD DATA INFILE from 5.0.1.
Apart from that, the new binlog format is designed so that it can tolerate
a little variation in the events (so that a 5.0.0 slave could replicate a
5.0.1 master, except for LOAD DATA INFILE unfortunately); that is, when I
later add replication of charsets it should break nothing. And when I later
add a UID to every event, it should break nothing.
The main change brought by this patch is a new type of event, Format_description_log_event,
which describes some lengthes in other event types. This event is needed for
the master/slave/mysqlbinlog to understand a 5.0 log. Thanks to this event,
we can later add more bytes to the header of every event without breaking compatibility.
Inside Query_log_event, we have some additional dynamic format, as every Query_log_event
can have a different number of status variables, stored as pairs (code, value); that's
how SQL_MODE and session variables and catalog are stored. Like this, we can later
add count of affected rows, charsets... and we can have options --don't-log-count-affected-rows
if we want.
MySQL 5.0 is able to run on 4.x relay logs, 4.x binlogs.
Upgrading a 4.x master to 5.0 is ok (no need to delete binlogs),
upgrading a 4.x slave to 5.0 is ok (no need to delete relay logs);
so both can be "hot" upgrades.
Upgrading a 3.23 master to 5.0 requires as much as upgrading it to 4.0.
3.23 and 4.x can't be slaves of 5.0.
So downgrading from 5.0 to 4.x may be complicated.
Log_event::log_pos is now the position of the end of the event, which is
more useful than the position of the beginning. We take care about compatibility
with <5.0 (in which log_pos is the beginning).
I added a short test for replication of SQL_MODE and some other variables.
TODO:
- after committing this, merge the latest 5.0 into it
- fix all tests
- update the manual with upgrade notes.
client/Makefile.am:
mysqlbinlog.cc depends slightly on sql/mysql_priv.h
client/mysqlbinlog.cc:
Make mysqlbinlog able to read the new binlog format,
by seeking to the start and reading the first few events, to
detect the format of the binlog.
include/my_sys.h:
a correct tell() for SEQ_READ_APPEND caches.
mysys/mf_iocache2.c:
a correct tell() for SEQ_READ_APPEND caches
(my_b_tell() is not working for such caches).
sql/ha_innodb.cc:
we are getting rid of event lengthes here and there, which is good.
sql/log.cc:
Start events will have created==0 if generated by rotation (like in 3.23).
In 5.0 we always write a Format_description_log_event at the beginning of
every master's binary log and of every slave's relay log.
We also add Rotate and Stop to relay logs (like there already was in
master's binary logs).
When we rotate a relay log, we write the previous relay log's Start event
(the one which was sent from the master) to the beginning of the new log,
so that we don't need the previous relay log to understand the new one;
that's the purpose of MYSQL_LOG::description_event_for_queue.
Removed logging of SET FOREIGN_KEY_CHECKS, because we handle it as flags
in the Query event now.
sql/log_event.cc:
New event type: Format_description_log_event, to describe the log's format.
read_log_event() needs to be passed this event to be able to read 5.0 events.
Query_log_event has new members flags2 and sql_mode for replication of session
variables (except charsets which are WL#1062) and SQL_MODE.
flags2 is in fact a kind of copy of thd->options (&'d with a mask).
Now with this replication of FOREIGN_KEY_CHECKS, SQL_AUTO_IS_NULL, UNIQUE_CHECKS
and SQL_MODE work; with mysqlbinlog too.
sql/log_event.h:
Binlog version is changed to 4.
New classes (details in sql/log_event.cc).
Removing some useless #defines.
sql/mysql_priv.h:
Definition of SELECT_DISTINCT and others must be visible in client/mysqlbinlog.cc,
so adding #ifdefs.
sql/mysqld.cc:
update for prototype change
sql/slave.cc:
When the slave opens a relay log, it reads the first few events to know the format.
When slave I/O thread receives a Rotate from the master, it rotates its relay log
(to avoid mixed format in the relay log).
sql/slave.h:
in the slave we avoid lengthes and rely on absolute positions instead;
hence the introduction of future_group_master_log_pos and future_event_relay_log_pos
(explained in code).
sql/sql_class.cc:
catalog in THD
sql/sql_class.h:
catalog, and new members in MYSQL_LOG
sql/sql_repl.cc:
When the master starts sending binlog to slave, it must
first read the first few events to detect the binlog's format.
Same for SHOW BINLOG EVENTS.
This is the main commit for Worklog tasks:
* A more dynamic binlog format which allows small changes (1064)
* Log session variables in Query_log_event (1063)
Below 5.0 means 5.0.0.
MySQL 5.0 is able to replicate FOREIGN_KEY_CHECKS, UNIQUE_KEY_CHECKS (for speed),
SQL_AUTO_IS_NULL, SQL_MODE. Not charsets (WL#1062), not some vars (I can only think
of SQL_SELECT_LIMIT, which deserves a special treatment). Note that this
works for queries, except LOAD DATA INFILE (for this it would have to wait
for Dmitri's push of WL#874, which in turns waits for the present push, so...
the deadlock must be broken!). Note that when Dmitri pushes WL#874 in 5.0.1,
5.0.0 won't be able to replicate a LOAD DATA INFILE from 5.0.1.
Apart from that, the new binlog format is designed so that it can tolerate
a little variation in the events (so that a 5.0.0 slave could replicate a
5.0.1 master, except for LOAD DATA INFILE unfortunately); that is, when I
later add replication of charsets it should break nothing. And when I later
add a UID to every event, it should break nothing.
The main change brought by this patch is a new type of event, Format_description_log_event,
which describes some lengthes in other event types. This event is needed for
the master/slave/mysqlbinlog to understand a 5.0 log. Thanks to this event,
we can later add more bytes to the header of every event without breaking compatibility.
Inside Query_log_event, we have some additional dynamic format, as every Query_log_event
can have a different number of status variables, stored as pairs (code, value); that's
how SQL_MODE and session variables and catalog are stored. Like this, we can later
add count of affected rows, charsets... and we can have options --don't-log-count-affected-rows
if we want.
MySQL 5.0 is able to run on 4.x relay logs, 4.x binlogs.
Upgrading a 4.x master to 5.0 is ok (no need to delete binlogs),
upgrading a 4.x slave to 5.0 is ok (no need to delete relay logs);
so both can be "hot" upgrades.
Upgrading a 3.23 master to 5.0 requires as much as upgrading it to 4.0.
3.23 and 4.x can't be slaves of 5.0.
So downgrading from 5.0 to 4.x may be complicated.
Log_event::log_pos is now the position of the end of the event, which is
more useful than the position of the beginning. We take care about compatibility
with <5.0 (in which log_pos is the beginning).
I added a short test for replication of SQL_MODE and some other variables.
TODO:
- after committing this, merge the latest 5.0 into it
- fix all tests
- update the manual with upgrade notes.
BitKeeper/etc/ignore:
auto-union
BitKeeper/etc/logging_ok:
auto-union
configure.in:
Auto merged
client/mysql.cc:
Auto merged
client/mysqltest.c:
Auto merged
include/my_global.h:
Auto merged
include/my_pthread.h:
Auto merged
include/mysql_com.h:
Auto merged
libmysql/libmysql.c:
Auto merged
myisam/mi_check.c:
Auto merged
myisam/myisamchk.c:
Auto merged
myisam/myisamdef.h:
Auto merged
myisam/sort.c:
Auto merged
mysql-test/install_test_db.sh:
Auto merged
mysql-test/r/subselect.result:
Auto merged
mysql-test/r/symlink.result:
Auto merged
mysql-test/t/subselect.test:
Auto merged
sql/ha_innodb.cc:
Auto merged
sql/ha_myisam.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/handler.h:
Auto merged
sql/item.cc:
Auto merged
sql/item.h:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/log.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/opt_range.cc:
Auto merged
sql/protocol.cc:
Auto merged
sql/protocol.h:
Auto merged
sql/protocol_cursor.cc:
Auto merged
sql/repl_failsafe.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_db.cc:
Auto merged
sql/sql_derived.cc:
Auto merged
sql/sql_error.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_list.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_prepare.cc:
Auto merged
sql/sql_repl.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_select.h:
Auto merged
sql/sql_show.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_test.cc:
Auto merged
sql/sql_update.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
Fixed compiler warnings (a lot of hidden variables detected by the Forte compiler)
Added a lot of 'version_xxx' strings to 'show variables'
Prevent copying of TMP_TABLE_PARAM (This caused core dump bug on Solaris)
Fixed problem with printing sub selects to debug log
Docs/mysqld_error.txt:
Updated error messages
Makefile.am:
Added missing SSL library (Should be in source distribution)
configure.in:
Added missing SSL library
include/sql_common.h:
Move duplicated prototypes
innobase/os/os0file.c:
Added comment for line that could be removed
innobase/srv/srv0srv.c:
Added comment for line that could be removed
innobase/srv/srv0start.c:
Added comment for line that could be removed
innobase/trx/trx0sys.c:
Added cast to remove compiler warning
isam/isamchk.c:
Fixed compiler warning
libmysql/conf_to_src.c:
Include files in proper order
myisam/mi_check.c:
Removed else part that caused compiler warning
myisam/mi_delete.c:
Added cast
myisam/mi_page.c:
Added cast
myisam/mi_preload.c:
Added cast
myisam/mi_write.c:
Added cast
myisam/myisampack.c:
changed 'byte' to 'current_byte' to avoid compiler warnings
mysql-test/mysql-test-run.sh:
Removed start-from as test '<' is not portable and this can easily be done from command line
mysys/hash.c:
Added cast
mysys/mf_wcomp.c:
Removed not reached line
mysys/my_append.c:
Fixed include file order to get this more portable
mysys/my_copy.c:
Fixed include file order to get this more portable
mysys/my_redel.c:
Fixed include file order to get this more portable
sql-common/client.c:
More DBUG_PRINT
sql-common/pack.c:
Added casts becasue Fortre compiler apparently compares (ulonglong) < (longlong) as signed
sql/ha_heap.cc:
Changed variable names to not cause hidden variables
sql/ha_innodb.cc:
Changed variable names to not cause hidden variables
sql/item.cc:
Changed variable names to not cause hidden variables
sql/item.h:
Changed variable names to not cause hidden variables
sql/item_cmpfunc.h:
Changed variable names to not cause hidden variables
sql/item_func.cc:
Changed variable names to not cause hidden variables
sql/item_subselect.cc:
Changed variable names to not cause hidden variables
sql/item_subselect.h:
Changed variable names to not cause hidden variables
sql/item_sum.cc:
Changed variable names to not cause hidden variables
sql/item_timefunc.cc:
Changed variable names to not cause hidden variables
sql/log.cc:
Changed variable names to not cause hidden variables
sql/protocol.cc:
Changed variable names to not cause hidden variables
sql/protocol.h:
Changed variable names to not cause hidden variables
Remove function not declared in protocol.cc
sql/protocol_cursor.cc:
Changed variable names to not cause hidden variables
sql/set_var.cc:
Added a lot of 'version_xxx' strings
Changed 'bdb_version' to 'version_bdb'
sql/sql_class.cc:
Changed variable names to not cause hidden variables
Add TMP_TABLE_PARAM::init() to allow one to initialize structure several times
sql/sql_class.h:
Prevent copying of TMP_TABLE_PARAM (This caused core dump bug on Solaris)
sql/sql_derived.cc:
Avoid copying TMP_TABLE_PARAM (Use class version instead)
sql/sql_error.cc:
More DBUG
sql/sql_help.cc:
Fixed compiler warning
sql/sql_lex.cc:
Changed variable names to not cause hidden variables
sql/sql_list.h:
Changed variable names to not cause hidden variables
sql/sql_parse.cc:
Changed variable names to not cause hidden variables
sql/sql_select.cc:
Changed variable names to not cause hidden variables
Ensure that you don't send NULL to printf() for %s
Fixed problem with printing sub selects to debug log
sql/sql_select.h:
Changed variable names to not cause hidden variables
sql/sql_union.cc:
Changed variable names to not cause hidden variables
Don't use local copy of TMP_TABLE_PARAM (Caused core dump on Solaris)
sql/sql_update.cc:
Indentation cleanup
sql/sql_yacc.yy:
Remove warning
strings/conf_to_src.c:
Fixed include file order
Fixed compiler warnings (a lot of hidden variables detected by the Forte compiler)
Added a lot of 'version_xxx' strings to 'show variables'
Prevent copying of TMP_TABLE_PARAM (This caused core dump bug on Solaris)
Fixed problem with printing sub selects to debug log
"You can always mysql_real_query a query with placeholders
after mysql_prepare()"
sql/sql_class.cc:
prepare_command removed
sql/sql_class.h:
prepare_command removed
sql/sql_prepare.cc:
prepare_command removed
sql/sql_yacc.yy:
prepare_command removed
tests/client_test.c:
added test for bug #1946: "You can always
mysql_real_query a query with placeholders after mysql_prepare()"
- unused variable THD::con_root removed
- we don't need to bzero(&warn_root) just before init_alloc_root(&warn_root)
- we don't need to bzero(&transaction.mem_root) because we
bzero(&transaction) later in THD::THD
- we don't need to free thd->mem_root thd->transaction.mem_root
in handle_one_connection because they are freed in THD::~THD
which is called in end_thread later
sql/sql_class.cc:
Cleanups:
- unused variable THD::con_root removed
- we don't need to bzero(&warn_root) just before init_alloc_root(&warn_root)
- we don't need to bzero(&transaction.mem_root) because we
bzero(&transaction) later in THD::THD
sql/sql_class.h:
Unused variable THD::con_root removed
sql/sql_parse.cc:
we don't need to free thd->mem_root and thd->transaction.mem_root
because they are freed in THD::~THD
- unused variable THD::con_root removed
- we don't need to bzero(&warn_root) just before init_alloc_root(&warn_root)
- we don't need to bzero(&transaction.mem_root) because we
bzero(&transaction) later in THD::THD
- we don't need to free thd->mem_root thd->transaction.mem_root
in handle_one_connection because they are freed in THD::~THD
which is called in end_thread later
