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500 commits

Author SHA1 Message Date
Alfranio Correia
6f7929b143 merge mysql-5.1-rep+2-delivery1 --> mysql-5.1-rpl-merge
Conflicts:

Text conflict in .bzr-mysql/default.conf
Text conflict in mysql-test/extra/rpl_tests/rpl_loaddata.test
Text conflict in mysql-test/r/mysqlbinlog2.result
Text conflict in mysql-test/suite/binlog/r/binlog_stm_mix_innodb_myisam.result
Text conflict in mysql-test/suite/binlog/r/binlog_unsafe.result
Text conflict in mysql-test/suite/rpl/r/rpl_insert_id.result
Text conflict in mysql-test/suite/rpl/r/rpl_loaddata.result
Text conflict in mysql-test/suite/rpl/r/rpl_stm_auto_increment_bug33029.result
Text conflict in mysql-test/suite/rpl/r/rpl_udf.result
Text conflict in mysql-test/suite/rpl/t/rpl_slow_query_log.test
Text conflict in sql/field.h
Text conflict in sql/log.cc
Text conflict in sql/log_event.cc
Text conflict in sql/log_event_old.cc
Text conflict in sql/mysql_priv.h
Text conflict in sql/share/errmsg.txt
Text conflict in sql/sp.cc
Text conflict in sql/sql_acl.cc
Text conflict in sql/sql_base.cc
Text conflict in sql/sql_class.h
Text conflict in sql/sql_db.cc
Text conflict in sql/sql_delete.cc
Text conflict in sql/sql_insert.cc
Text conflict in sql/sql_lex.cc
Text conflict in sql/sql_lex.h
Text conflict in sql/sql_load.cc
Text conflict in sql/sql_table.cc
Text conflict in sql/sql_update.cc
Text conflict in sql/sql_view.cc
Conflict adding files to storage/innobase.  Created directory.
Conflict because storage/innobase is not versioned, but has versioned children.  Versioned directory.
Conflict adding file storage/innobase.  Moved existing file to storage/innobase.moved.
Conflict adding files to storage/innobase/handler.  Created directory.
Conflict because storage/innobase/handler is not versioned, but has versioned children.  Versioned directory.
Contents conflict in storage/innobase/handler/ha_innodb.cc
2010-01-07 15:39:11 +00:00
Luis Soares
0597dc7c9c merge: 5.1-bugteam bug branch --> 5.1 bugteam latest. 2010-01-07 10:34:27 +00:00
Luis Soares
b85a186c66 BUG#49836: Replication of geometric fields is broken after WL#5151
Metadata for geometric fields was not being properly stored by
the slave in its the table definition. This happened because
MYSQL_TYPE_GEOMETRY was not included in the 'switch... case' that
handles field metadata according to the field type. Therefore, it
would default to 0, leading to always have a mismatch between
master's field and slave fields'. 

We fix this by deploying the missing 'case MYSQL_TYPE_GEOMETRY:'.
2009-12-24 01:07:35 +00:00
Alfranio Correia
62b10996f2 merge mysql-5.1-rep+2 --> mysql-5.1-rep+2-delivery1 2009-12-23 12:02:57 +00:00
Sergei Golubchik
ae2768ce9c WL#4738 streamline/simplify @@variable creation process
Bug#16565 mysqld --help --verbose does not order variablesBug#20413 sql_slave_skip_counter is not shown in show variables
Bug#20415 Output of mysqld --help --verbose is incomplete
Bug#25430 variable not found in SELECT @@global.ft_max_word_len;
Bug#32902 plugin variables don't know their names
Bug#34599 MySQLD Option and Variable Reference need to be consistent in formatting!
Bug#34829 No default value for variable and setting default does not raise error
Bug#34834 ? Is accepted as a valid sql mode
Bug#34878 Few variables have default value according to documentation but error occurs  
Bug#34883 ft_boolean_syntax cant be assigned from user variable to global var.
Bug#37187 `INFORMATION_SCHEMA`.`GLOBAL_VARIABLES`: inconsistent status
Bug#40988 log_output_basic.test succeeded though syntactically false.
Bug#41010 enum-style command-line options are not honoured (maria.maria-recover fails)
Bug#42103 Setting key_buffer_size to a negative value may lead to very large allocations 
Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled
Bug#44797 plugins w/o command-line options have no disabling option in --help
Bug#46314 string system variables don't support expressions
Bug#46470 sys_vars.max_binlog_cache_size_basic_32 is broken
Bug#46586 When using the plugin interface the type "set" for options caused a crash.
Bug#47212 Crash in DBUG_PRINT in mysqltest.cc when trying to print octal number
Bug#48758 mysqltest crashes on sys_vars.collation_server_basic in gcov builds
Bug#49417 some complaints about mysqld --help --verbose output
Bug#49540 DEFAULT value of binlog_format isn't the default value
Bug#49640 ambiguous option '--skip-skip-myisam' (double skip prefix)
Bug#49644 init_connect and \0
Bug#49645 init_slave and multi-byte characters
Bug#49646 mysql --show-warnings crashes when server dies
2009-12-22 10:35:56 +01:00
Mats Kindahl
51dc566eb6 Merging with mysql-5.1-rep+2 2009-12-21 20:55:40 +01:00
Mats Kindahl
a22bc99ff6 WL#5151: Conversion between different types when replicating
Bug#49836 reports that the geometry type does not work
with WL#5151 applied.

The GEOMETRY type inherits the blob comparison function,
which read the pack length from the metadata. The GEOMETRY
type does not fill in the metadata with anything sensible,
so it is always zero, meaning that the pack length for the
source type is considered zero, rendering it always "smaller"
than the target type which has pack length 4 (without pointer).

This patch fixes the problem by defining
Field_geom::pack_length_from_metadata() to always use the
same as Field_geom::row_pack_length().
2009-12-21 19:50:25 +01:00
Alfranio Correia
8342a400d9 merge mysql-5.1-rep+2 --> mysql-5.1-rep+2-delivery1 2009-12-21 06:33:32 +00:00
Mats Kindahl
d78e5ff060 Merging with mysql.5.1-rep+2 2009-12-18 13:09:08 +01:00
Mats Kindahl
3f607c47d3 Merging with mysql-5.1-rep+2 2009-12-18 11:16:18 +01:00
Mats Kindahl
b524f272d4 WL#5151: Conversion between different types
when replicating

The function create_virtual_tmp_table does not
set db_low_byte_first in the same way as
create_tmp_table does, causing copying from
the virtual table to a real table to get strange
values for SET types on big-endian machines.
2009-12-18 11:12:27 +01:00
Alfranio Correia
3476b15af9 merge mysql-5.1-rep+3 --> mysql-5.1-rep+2-delivery1 2009-12-17 21:43:35 +00:00
Alfranio Correia
013cc668df merging from 5.1 to rep+2 starting at gca(5.1, next-mr) == build@mysql.com-20091208092611-pbno5awyb0v38hs7
Fixed conflicts in:

- binlog.binlog_unsafe
- rpl.rpl_slow_query_log
2009-12-17 00:09:52 +00:00
Alexander Nozdrin
09942fe8e8 Manual merge from mysql-trunk-merge.
Conflicts:
  - include/my_no_pthread.h
  - mysql-test/r/sp-ucs2.result
  - sql/log.cc
  - sql/sql_acl.cc
  - sql/sql_yacc.yy
2009-12-16 21:02:21 +03:00
Alexey Kopytov
efe6195858 Manual merge of mysql-5.1-bugteam into mysql-trunk-merge. 2009-12-16 16:47:07 +03:00
Mats Kindahl
2511f3c4b3 Merging with mysql-5.1-rep+2 2009-12-15 21:21:00 +01:00
Konstantin Osipov
e931ef415a Merge next-mr -> next-4284. 2009-12-15 22:59:07 +03:00
aa38825287 Bug #34628 LOAD DATA CONCURRENT INFILE drops CONCURRENT in binary log
'LOAD DATA CONCURRENT [LOCAL] INFILE ...' statment only is binlogged as
'LOAD DATA [LOCAL] INFILE ...' in SBR and MBR.  As a result, if replication is on, 
queries on slaves will be blocked by the replication SQL thread.

This patch write code to write 'CONCURRENT' into the log event if 'CONCURRENT' option
is in the original statement in SBR and MBR.
2009-12-15 13:14:14 +08:00
Sven Sandberg
0758893afe Post-push fixes after wrong merge from 5.1->rep+2->rep+3.
Problem: The test was written before BUG#45827 was fixed.
The test contained code that assumed the wrong behavior,
pre-BUG#45827. Then, the fix for BUG#45827 was merged
from 5.1-rep+2 to 5.1-rep+3. Since the test case assumed
the wrong behavior, it failed. This should have been fixed
by making the test assume the correct behavior, but was
fixed by updating the result file to assert failure.
Fix 1: fix the test to assume correct behavior
(post-BUG#45827), update result file.
Fix 2: make test fail with 'die' instead of 'exit' when
wrong behavior is detected. Thus, the test cannot be
silenced with a wrong result file in case the behavior
will change again.
2009-12-14 15:33:03 +01:00
Mats Kindahl
c63df11f37 WL#5151: Conversion between different types when replicating
Row-based replication requires the types of columns on the
master and slave to be approximately the same (some safe
conversions between strings are allowed), but does not
allow safe conversions between fields of similar types such
as TINYINT and INT.

This patch implement type conversions between similar fields
on the master and slave.

The conversions are controlled using a new variable
SLAVE_TYPE_CONVERSIONS of type SET('ALL_LOSSY','ALL_NON_LOSSY').

Non-lossy conversions are any conversions that do not run the
risk of losing any information, while lossy conversions can
potentially truncate the value. The column definitions are
checked to decide if the conversion is acceptable.

If neither conversion is enabled, it is required that the
definitions of the columns are identical on master and slave.

Conversion is done by creating an internal conversion table,
unpacking the master data into it, and then copy the data to
the real table on the slave.
2009-12-14 12:04:55 +01:00
Alexander Nozdrin
bc2d4e620a Manual merge from mysql-trunk-merge.
Conflicts:
  - extra/comp_err.c
  - mysql-test/collections/default.experimental
  - mysql-test/r/archive.result
  - mysql-test/r/select.result
  - mysql-test/suite/binlog/r/binlog_unsafe.result
  - mysql-test/suite/binlog/t/binlog_unsafe.test
  - mysql-test/suite/rpl/t/disabled.def
  - mysql-test/t/archive.test
  - mysql-test/t/select.test
  - sql/item.cc
  - sql/item.h
  - sql/item_timefunc.cc
  - sql/sql_base.cc
  - sql/sql_delete.cc
  - sql/sql_load.cc
  - sql/sql_partition.cc
  - sql/sql_table.cc
  - storage/innobase/handler/ha_innodb.cc
  - vio/vio.c
2009-12-12 23:38:59 +03:00
Alexander Nozdrin
69cfd5c8ec Manual merge from mysql-trunk.
Conflicts:
  - client/mysqltest.cc
  - mysql-test/collections/default.experimental
  - mysql-test/suite/rpl/t/disabled.def
  - sql/mysqld.cc
  - sql/opt_range.cc
  - sql/sp.cc
  - sql/sql_acl.cc
  - sql/sql_partition.cc
  - sql/sql_table.cc
2009-12-11 12:39:38 +03:00
Luis Soares
d0a24b1367 BUG#49479: Slave stops with syntax error: LOAD DATA event without
escaped field names

When in mixed or statement mode, the master logs LOAD DATA
queries by resorting to an Execute_load_query_log_event. This
event does not contain the original query, but a rewritten
version of it, which includes the table field names. However, the
rewrite does not escape the field names. If these names match a
reserved keyword, then the slave will stop with a syntax error
when executing the event.

We fix this by escaping the fields names as it happens already
for the table name.
2009-12-06 01:11:32 +00:00
Konstantin Osipov
0b39c189ba Backport of revno ## 2617.31.1, 2617.31.3, 2617.31.4, 2617.31.5,
2617.31.12, 2617.31.15, 2617.31.15, 2617.31.16, 2617.43.1
- initial changeset that introduced the fix for 
Bug#989 and follow up fixes for all test suite failures
introduced in the initial changeset. 
------------------------------------------------------------
revno: 2617.31.1
committer: Davi Arnaut <Davi.Arnaut@Sun.COM>
branch nick: 4284-6.0
timestamp: Fri 2009-03-06 19:17:00 -0300
message:
Bug#989: If DROP TABLE while there's an active transaction, wrong binlog order
WL#4284: Transactional DDL locking

Currently the MySQL server does not keep metadata locks on
schema objects for the duration of a transaction, thus failing
to guarantee the integrity of the schema objects being used
during the transaction and to protect then from concurrent
DDL operations. This also poses a problem for replication as
a DDL operation might be replicated even thought there are
active transactions using the object being modified.

The solution is to defer the release of metadata locks until
a active transaction is either committed or rolled back. This
prevents other statements from modifying the table for the
entire duration of the transaction. This provides commitment
ordering for guaranteeing serializability across multiple
transactions.

- Incompatible change:

If MySQL's metadata locking system encounters a lock conflict,
the usual schema is to use the try and back-off technique to
avoid deadlocks -- this schema consists in releasing all locks
and trying to acquire them all in one go.

But in a transactional context this algorithm can't be utilized
as its not possible to release locks acquired during the course
of the transaction without breaking the transaction commitments.
To avoid deadlocks in this case, the ER_LOCK_DEADLOCK will be
returned if a lock conflict is encountered during a transaction.

Let's consider an example:

A transaction has two statements that modify table t1, then table
t2, and then commits. The first statement of the transaction will
acquire a shared metadata lock on table t1, and it will be kept
utill COMMIT to ensure serializability.

At the moment when the second statement attempts to acquire a
shared metadata lock on t2, a concurrent ALTER or DROP statement
might have locked t2 exclusively. The prescription of the current
locking protocol is that the acquirer of the shared lock backs off
-- gives up all his current locks and retries. This implies that
the entire multi-statement transaction has to be rolled back.

- Incompatible change:

FLUSH commands such as FLUSH PRIVILEGES and FLUSH TABLES WITH READ
LOCK won't cause locked tables to be implicitly unlocked anymore.
2009-12-05 02:02:48 +03:00
Alexander Nozdrin
f26ac4ba7a Manual merge from mysql-next-mr.
Conflicts:
  - sql/sql_yacc.yy
2009-12-02 18:50:14 +03:00
Andrei Elkin
9b8e816fd1 merging 5.1->rep+2->rep+3 2009-12-02 14:17:07 +02:00
Andrei Elkin
070d190906 mergin 5.1 -> rep+2 -> rep+3. create_table_from_dump issue will be merged on the next step 2009-11-30 20:20:26 +02:00
Andrei Elkin
a6f2076c03 merging from 5.1 to rep+2 starting at gca(5.1, next-mr) == build@mysql.com-20091104182209-iui387z35159aoyw 2009-11-30 14:34:39 +02:00
Serge Kozlov
71a1b1e755 WL#3894, post-push fix. 2009-11-28 17:53:48 +03:00
Serge Kozlov
f9156610b0 Backport for WL#4416 2009-11-27 02:32:01 +03:00
Alfranio Correia
7c9503b75e merge 5.1-bugteam (local) --> 5.1-bugteam 2009-11-21 13:02:18 +00:00
Sven Sandberg
349f48e10a BUG#47995: Mark system functions as unsafe
Problem: Some system functions that could return different values on
master and slave were not marked unsafe. In particular:
 GET_LOCK
 IS_FREE_LOCK
 IS_USED_LOCK
 MASTER_POS_WAIT
 RELEASE_LOCK
 SLEEP
 SYSDATE
 VERSION
Fix: Mark these functions unsafe.
2009-11-18 15:50:31 +01:00
Luis Soares
27b1c660e3 manual merge: mysql-5.1-rep+2 (bug tree) --> mysql-5.1-rep+2 (latest)
CONFLICTS
=========

Text conflict in sql/sql_yacc.yy
1 conflicts encountered.
2009-11-13 10:17:53 +00:00
794ccfc378 Backport Bug #45827 Stmt using two autoinc values does not produce unsafe warning
One statement that have more than one different tables to update with 
autoinc columns just was marked as unsafe in mixed mode, so the unsafe 
warning can't be produced in statement mode.
      
To fix the problem, mark the statement as unsafe in statement mode too.
2009-11-13 16:29:35 +08:00
Alfranio Correia
a6ca6b991e Post-fix for WL#2687 WL#5072 BUG#40278 BUG#47175
Create a set of test cases to see if some DDL statements implicitly commit
a transaction on the NDB and are written directly to the binary log without
going through either the Statement- or Transactional-Cache.
2009-11-13 00:17:10 +00:00
Alexander Nozdrin
3c0c7e9576 Auto-merge from mysql-next-mr. 2009-11-12 15:13:43 +03:00
Alfranio Correia
a0e606cb82 Post-fix after mysql-5.1-rep+2 --> mysql-5.1-rep+3. 2009-11-11 16:35:58 +00:00
Alfranio Correia
ada4ae340a Post-fix for merge mysql-5.1-rep+2 --> mysql-5.1-rep+3 2009-11-11 13:51:49 +00:00
Andrei Elkin
d09bded416 merging 5.1 main -> 5.1-rep+2 -> 5.1-rep+3; binlog_unsafe , rpl_mysql_upgrade fail and are under treatment 2009-11-10 20:45:15 +02:00
Andrei Elkin
69d6fcbd3b merging 5.1 main -> rpl+2. Some manual work required mostly due to bug46640 2009-11-06 18:35:04 +02:00
Alexander Nozdrin
2ca5b2c791 Manual merge from mysql-trunk-merge. 2009-11-06 17:20:27 +03:00
Luis Soares
6e068a9cf8 BUG#48048: Deprecated constructs need removal in Betony
NOTE: Backport of:

bzr log -r revid:sp1r-serg@sergbook.mysql.com-20070505200319-38337
------------------------------------------------------------
revno: 2469.263.4
committer: serg@sergbook.mysql.com
timestamp: Sat 2007-05-05 13:03:19 -0700
message:
  Removing deprecated features:
  --master-XXX command-line options
  log_bin_trust_routine_creators
  table_type
  BACKUP TABLE ...
  RESTORE TABLE ...
  SHOW PLUGIN
  LOAD TABLE ... FROM MASTER
  LOAD DATA FROM MASTER
  SHOW INNODB STATUS
  SHOW MUTEX STATUS
  SHOW TABLE TYPES
  ... TIMESTAMP(N)
  ... TYPE=engine
  
  RESET SLAVE don't reset connection parameters anymore
  LOAD DATA: check opt_secure_file_priv before access(filename)
  improved WARN_DEPRECATED macro
2009-11-04 12:28:20 +00:00
Alfranio Correia
60d4662496 WL#2687 WL#5072 BUG#40278 BUG#47175
Non-transactional updates that take place inside a transaction present problems
for logging because they are visible to other clients before the transaction
is committed, and they are not rolled back even if the transaction is rolled
back. It is not always possible to log correctly in statement format when both
transactional and non-transactional tables are used in the same transaction.

In the current patch, we ensure that such scenario is completely safe under the
ROW and MIXED modes.
2009-11-03 19:02:56 +00:00
Alexey Botchkov
567bf9d37c Bug#41371 Select returns 1 row with condition "col is not null and col is null"
For application compatibility reasons  MySQL converts "<autoincrement_column> IS NULL"
    predicates to "<autoincrement_column> = LAST_INSERT_ID()" in the first SELECT following an
    INSERT regardless of whether they're top level predicates or not. This causes wrong and
    obscure results when these predicates are combined with others on the same columns. Fixed
    by only doing the transformation on a single top-level predicate if a special SQL mode is
    turned on (sql_auto_is_null).
    Also made sql_auto_is_null off by default.

per-file comments:
  mysql-test/r/func_isnull.result
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
    test result updated

  mysql-test/t/func_isnull.test
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
    test case added

  sql/mysqld.cc
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
    sql_auto_is_null now is OFF by default.

  sql/sql_select.cc
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
    remove_eq_conds() split in two parts - one only checks the upper condition,
    the req_remove_eq_conds() recursively checks all the condition tree.

  mysql-test/extra/rpl_tests/rpl_insert_id.test
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
        test fixed (set the sql_auto_is_null variable)

  mysql-test/r/mysqlbinlog.result
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
        result updated

  mysql-test/r/mysqlbinlog2.result
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
        result updated

  mysql-test/r/odbc.result
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
        result updated

  mysql-test/r/query_cache.result
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
        result updated

  mysql-test/r/user_var-binlog.result
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
        result updated

  mysql-test/suite/binlog/r/binlog_row_ctype_ucs.result
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
        result updated

  mysql-test/suite/binlog/r/binlog_stm_ctype_ucs.result
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
        result updated

  mysql-test/suite/rpl/r/rpl_insert_id.result
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
        result updated

  mysql-test/suite/rpl/r/rpl_row_mysqlbinlog.result
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
        result updated

  mysql-test/suite/rpl/r/rpl_sp.result
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
        result updated

  mysql-test/t/odbc.test
Bug#41371      Select returns 1 row with condition "col is not null and col is null"
        test fixed (set the sql_auto_is_null variable)
2009-11-03 17:54:41 +04:00
c3345f3e47 Manual Merge 2009-11-03 18:20:08 +08:00
Luis Soares
520795fa2a BUG#48297: Schema name is ignored when LOAD DATA is written into
binlog, replication aborts

In SBR or MBR, the schema name is not being written to the binlog
when executing a LOAD DATA statement. This becomes a problem when
the current database (lets call it db1) is different from the
table's schema (lets call it db2). For instance, take the
following statements:
  
  use db1;
  load data local infile 'infile.txt' into table db2.t

Should this statement be logged without t's schema (db2), when
replaying it, one can get db1.t populated instead of db2.t (if
db1.t exists). On the other hand, if there is no db1.t at all,
replication will stop.

We fix this by always logging the table (in load file) with fully
qualified name when its schema is different from the current
database or when no default database was selected.
2009-10-27 15:15:53 +00:00
Luis Soares
58e2fde011 manual merge: mysql-5.1-rep+2-delivery1 --> mysql-5.1-rpl-merge
Conflicts
=========

Text conflict in .bzr-mysql/default.conf
Text conflict in libmysqld/CMakeLists.txt
Text conflict in libmysqld/Makefile.am
Text conflict in mysql-test/collections/default.experimental
Text conflict in mysql-test/extra/rpl_tests/rpl_row_sp006.test
Text conflict in mysql-test/suite/binlog/r/binlog_tmp_table.result
Text conflict in mysql-test/suite/rpl/r/rpl_loaddata.result
Text conflict in mysql-test/suite/rpl/r/rpl_loaddata_fatal.result
Text conflict in mysql-test/suite/rpl/r/rpl_row_create_table.result
Text conflict in mysql-test/suite/rpl/r/rpl_row_sp006_InnoDB.result
Text conflict in mysql-test/suite/rpl/r/rpl_stm_log.result
Text conflict in mysql-test/suite/rpl_ndb/r/rpl_ndb_circular_simplex.result
Text conflict in mysql-test/suite/rpl_ndb/r/rpl_ndb_sp006.result
Text conflict in mysql-test/t/mysqlbinlog.test
Text conflict in sql/CMakeLists.txt
Text conflict in sql/Makefile.am
Text conflict in sql/log_event_old.cc
Text conflict in sql/rpl_rli.cc
Text conflict in sql/slave.cc
Text conflict in sql/sql_binlog.cc
Text conflict in sql/sql_lex.h
21 conflicts encountered.

NOTE
====
 mysql-5.1-rpl-merge has been made a mirror of mysql-next-mr:
 - "mysql-5.1-rpl-merge$ bzr pull ../mysql-next-mr"

 This is the first cset (merge/...) committed after pulling 
 from mysql-next-mr.
2009-10-22 23:30:28 +01:00
Alfranio Correia
9f768be5ef BUG#48091 valgrind errors when slave has double not null and master has double null
Backporting BUG#47741 to mysql-5.1-bugteam
2009-10-22 01:21:50 +01:00
Alfranio Correia
762b39f8b1 BUG#48091 valgrind errors when slave has double not null and master has double null
Backporting BUG#43789 to mysql-5.1-bugteam

Post-fix for BUG#43789.
2009-10-22 01:19:52 +01:00
Alfranio Correia
4f164c4c5a BUG#48091 valgrind errors when slave has double not null and master has double null
Backporting BUG#43789 to mysql-5.1-bugteam
                              
The replication was generating corrupted data, warning messages on Valgrind
and aborting on debug mode while replicating a "null" to "not null" field.
Specifically the unpack_row routine, was considering the slave's table
definition and trying to retrieve a field value, where there was nothing to be
retrieved, ignoring the fact that the value was defined as "null" by the master.
                              
To fix the problem, we proceed as follows:
                              
1 - If it is not STRICT sql_mode, implicit default values are used, regardless
if it is multi-row or single-row statement.
                              
2 - However, if it is STRICT mode, then a we do what follows:
                              
2.1 If it is a transactional engine, we do a rollback on the first NULL that is
to be set into a NOT NULL column and return an error.
                              
2.2 If it is a non-transactional engine and it is the first row to be inserted
with multi-row, we also return the error. Otherwise, we proceed with the
execution, use implicit default values and print out warning messages.
                        
Unfortunately, the current patch cannot mimic the behavior showed by the master
for updates on multi-tables and multi-row inserts. This happens because such
statements are unfolded in different row events. For instance, considering the
following updates and strict mode:
                        
(master)
create table t1 (a int);
create table t2 (a int not null);
insert into t1 values (1);
insert into t2 values (2);
update t1, t2 SET t1.a=10, t2.a=NULL;
                        
t1 would have (10) and t2 would have (0) as this would be handled as a
multi-row update. On the other hand, if we had the following updates:
                        
(master)
create table t1 (a int);
create table t2 (a int);
                        
(slave)
create table t1 (a int);
create table t2 (a int not null);
                        
(master)
insert into t1 values (1);
insert into t2 values (2);
update t1, t2 SET t1.a=10, t2.a=NULL;
                        
On the master t1 would have (10) and t2 would have (NULL). On
the slave, t1 would have (10) but the update on t1 would fail.
2009-10-22 01:15:45 +01:00