Commit graph

224 commits

Author SHA1 Message Date
Mats Kindahl
e409d6f69c WL#5030: Split and remove mysql_priv.h
This patch:

- Moves all definitions from the mysql_priv.h file into
  header files for the component where the variable is
  defined
- Creates header files if the component lacks one
- Eliminates all include directives from mysql_priv.h
- Eliminates all circular include cycles
- Rename time.cc to sql_time.cc
- Rename mysql_priv.h to sql_priv.h
2010-03-31 16:05:33 +02:00
Alexey Kopytov
f10885675c Manual merge of mysql-trunk into mysql-trunk-merge.
Conflicts:

Text conflict in client/mysqlbinlog.cc
Text conflict in mysql-test/Makefile.am
Text conflict in mysql-test/collections/default.daily
Text conflict in mysql-test/r/mysqlbinlog_row_innodb.result
Text conflict in mysql-test/suite/rpl/r/rpl_typeconv_innodb.result
Text conflict in mysql-test/suite/rpl/t/rpl_get_master_version_and_clock.test
Text conflict in mysql-test/suite/rpl/t/rpl_row_create_table.test
Text conflict in mysql-test/suite/rpl/t/rpl_slave_skip.test
Text conflict in mysql-test/suite/rpl/t/rpl_typeconv_innodb.test
Text conflict in mysys/charset.c
Text conflict in sql/field.cc
Text conflict in sql/field.h
Text conflict in sql/item.h
Text conflict in sql/item_func.cc
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/mysqld.cc
Text conflict in sql/rpl_utility.cc
Text conflict in sql/rpl_utility.h
Text conflict in sql/set_var.cc
Text conflict in sql/share/Makefile.am
Text conflict in sql/sql_delete.cc
Text conflict in sql/sql_plugin.cc
Text conflict in sql/sql_select.cc
Text conflict in sql/sql_table.cc
Text conflict in storage/example/ha_example.h
Text conflict in storage/federated/ha_federated.cc
Text conflict in storage/myisammrg/ha_myisammrg.cc
Text conflict in storage/myisammrg/myrg_open.c
2010-03-24 18:03:44 +03:00
Alexey Kopytov
acc2b9e366 Manual merge of mysql-5.1-bugteam to mysql-trunk-merge.
Conflicts:

Text conflict in mysql-test/r/partition_innodb.result
Text conflict in sql/field.h
Text conflict in sql/item.h
Text conflict in sql/item_cmpfunc.h
Text conflict in sql/item_sum.h
Text conflict in sql/log_event_old.cc
Text conflict in sql/protocol.cc
Text conflict in sql/sql_select.cc
Text conflict in sql/sql_yacc.yy
2010-03-20 23:23:42 +03:00
Staale Smedseng
3f4d8edb84 Bug #49829 Many "hides virtual function" warnings with
SunStudio
      
SunStudio compilers of late warn about methods that might hide
methods in base classes due to the use of overloading combined
with overriding. SunStudio also warns about variables defined
in local socpe or method arguments that have the same name as
a member attribute of the class.
      
This patch renames methods that might hide base class methods,
to make it easier both for humans and compilers to see what is
actually called. It also renames variables in local scope.
2010-03-14 17:01:45 +01:00
Alexander Barkov
1094ffd572 WL#2649 Number-to-string conversions
added:
  include/ctype_numconv.inc
  mysql-test/include/ctype_numconv.inc
  mysql-test/r/ctype_binary.result
  mysql-test/t/ctype_binary.test
  Adding tests

modified:

  mysql-test/r/bigint.result
  mysql-test/r/case.result
  mysql-test/r/create.result
  mysql-test/r/ctype_cp1251.result
  mysql-test/r/ctype_latin1.result
  mysql-test/r/ctype_ucs.result
  mysql-test/r/func_gconcat.result
  mysql-test/r/func_str.result
  mysql-test/r/metadata.result
  mysql-test/r/ps_1general.result
  mysql-test/r/ps_2myisam.result
  mysql-test/r/ps_3innodb.result
  mysql-test/r/ps_4heap.result
  mysql-test/r/ps_5merge.result
  mysql-test/r/show_check.result
  mysql-test/r/type_datetime.result
  mysql-test/r/type_ranges.result
  mysql-test/r/union.result
  mysql-test/suite/ndb/r/ps_7ndb.result
  mysql-test/t/ctype_cp1251.test
  mysql-test/t/ctype_latin1.test
  mysql-test/t/ctype_ucs.test
  mysql-test/t/func_str.test
    Fixing tests


  @ sql/field.cc
     - Return str result using my_charset_numeric.
     - Using real multi-byte aware str_to_XXX functions
       to handle tricky charset values propely (e.g. UCS2)
  @ sql/field.h
     - Changing derivation of non-string field types to DERIVATION_NUMERIC.
     - Changing binary() for numeric/datetime fields to always
     return TRUE even if charset is not my_charset_bin. We need
     this to keep ha_base_keytype() return HA_KEYTYPE_BINARY.
     - Adding BINARY_FLAG into some fields, because it's not
     being set automatically anymore with
     "my_charset_bin to my_charset_numeric" change.
    - Changing derivation for numeric/datetime datatypes to a weaker
      value, to make "SELECT concat('string', field)" use character
      set of the string literal for the result of the function.
  @ sql/item.cc
     - Implementing generic val_str_ascii().
     - Using max_char_length() instead of direct read of max_length
       to make "tricky" charsets like UCS2 work.
       NOTE: in the future we'll possibly remove all direct reads of max_length
     - Fixing Item_num::safe_charset_converter().
       Previously it alligned binary string to
       character string (for example by adding leading 0x00
       when doing binary->UCS2 conversion). Now it just
       converts from my_charset_numbner to "tocs".
     - Using val_str_ascii() in Item::get_time() to make UCS2 arguments work.
     - Other misc changes
  @ sql/item.h
     - Changing MY_COLL_CMP_CONV and MY_COLL_ALLOW_CONV to
       bit operations instead of hard-coded bit masks.
     - Addding new method DTCollation.set_numeric().
     - Adding new methods to Item.
     - Adding helper functions to make code look nicer:
       agg_item_charsets_for_string_result()
       agg_item_charsets_for_comparison()
     - Changing charset for Item_num-derived items
       from my_charset_bin to my_charset_numeric
       (which is an alias for latin1).
  @ sql/item_cmpfunc.cc
     - Using new helper functions
     - Other misc changes
  @ sql/item_cmpfunc.h
     - Fixing strcmp() to return max_length=2.
       Previously it returned 1, which was wrong,
       because it did not fit '-1'.
  @ sql/item_func.cc
     - Using new helper functions
     - Other minor changes
  @ sql/item_func.h
     - Removing unused functions
     - Adding helper functions
       agg_arg_charsets_for_string_result()
       agg_arg_charsets_for_comparison()
     - Adding set_numeric() into constructors of numeric items.
     - Using fix_length_and_charset() and fix_char_length()
       instead of direct write to max_length.
  @ sql/item_geofunc.cc
     - Changing class for Item_func_geometry_type and
       Item_func_as_wkt from Item_str_func to
       Item_str_ascii_func, to make them return UCS2 result
       properly (when character_set_connection=ucs2).
  @ sql/item_geofunc.h
     - Changing class for Item_func_geometry_type and
       Item_func_as_wkt from Item_str_func to
       Item_str_ascii_func, to make them return UCS2 result
       properly (when @@character_set_connection=ucs2).
  @ sql/item_strfunc.cc
     - Implementing Item_str_func::val_str().
     - Renaming val_str to val_str_ascii for some items,
       to make them work with UCS2 properly.
     - Using new helper functions
     - All single-argument functions that expect string
       result now call this method:
       agg_arg_charsets_for_string_result(collation, args, 1);
       This enables character set conversion to @@character_set_connection
       in case of pure numeric input.
  @ sql/item_strfunc.h
     - Introducing Item_str_ascii_func - for functions
       which return pure ASCII data, for performance purposes,
       as well as for the cases when the old implementation
       of val_str() was heavily 8-bit oriented and implementing
       a UCS2-aware version is tricky.
  @ sql/item_sum.cc
     - Using new helper functions.
  @ sql/item_timefunc.cc
     - Using my_charset_numeric instead of my_charset_bin.
     - Using fix_char_length(), fix_length_and_charset()
       and fix_length_and_charset_datetime()
       instead of direct write to max_length.
     - Using tricky-charset aware function str_to_time_with_warn()
  @ sql/item_timefunc.h
     - Using new helper functions for charset and length initialization.
     - Changing base class for Item_func_get_format() to make
       it return UCS2 properly (when character_set_connection=ucs2).
  @ sql/item_xmlfunc.cc
     - Using new helper function
  @ sql/my_decimal.cc
     - Adding a new DECIMAL to CHAR converter
       with real multibyte support (e.g. UCS2)

  @ sql/mysql_priv.h
     - Introducing a new derivation level for numeric/datetime data types.
     - Adding macros for my_charset_numeric and MY_REPERTOIRE_NUMERIC.
     - Adding prototypes for str_set_decimal()
     - Adding prototypes for character-set aware str_to_xxx() functions.
  @ sql/protocol.cc
     - Changing charsetnr to "binary" client-side metadata for
       numeric/datetime data types.
  @ sql/time.cc
     - Adding to_ascii() helper function, to convert a string
       in any character set to ascii representation. In the
       future can be extended to understand digits written
       in various non-Latin word scripts.
     - Adding real multy-byte character set aware versions for str_to_XXXX,
       to make these these type of queries work correct:
         INSERT INTO t1 SET datetime_column=ucs2_expression;
   @  strings/ctype-ucs2.c
     - endptr was not calculated correctly. INSERTing of UCS2
       values into numeric columns returned warnings about
       truncated wrong data.
2010-02-11 08:17:25 +04:00
Mattias Jonsson
a39a91112e merge (and including the fix for bug#48939 since that was not included in mysql-trunk-bugfixing). 2009-12-15 23:47:04 +01:00
Tor Didriksen
0fe17677d8 Bug #49130 Running mtr tests with valgrind and debug produces lots of warnings
Use safe output formats for strings that are not null terminated.
2009-12-02 11:00:44 +01:00
Alexander Nozdrin
a8d553e0e3 Manual merge/pull from mysql-next-mr.
Conflicts:
  - sql/sql_insert.cc
2009-11-25 18:03:05 +03:00
Konstantin Osipov
4cff617c25 Backport of:
----------------------------------------------------------------------
ChangeSet@1.2571, 2008-04-08 12:30:06+02:00, vvaintroub@wva. +122 -0
  Bug#32082 : definition of VOID in my_global.h conflicts with Windows
  SDK headers
  
  VOID macro is now removed. Its usage is replaced with void cast.
  In some cases, where cast does not make much sense (pthread_*, printf, 
  hash_delete, my_seek), cast is ommited.
2009-11-24 16:54:59 +03:00
Mattias Jonsson
f52280cc42 merge of bug#35765 into mysql-next-mr-bugfixing 2009-11-24 12:08:04 +01:00
Alexander Nozdrin
069d78c067 Merge from mysql-next-mr. 2009-10-23 15:22:21 +04:00
Konstantin Osipov
d4632dff5a Backport of revno 2630.28.10, 2630.28.31, 2630.28.26, 2630.33.1,
2630.39.1, 2630.28.29, 2630.34.3, 2630.34.2, 2630.34.1, 2630.29.29,
2630.29.28, 2630.31.1, 2630.28.13, 2630.28.10, 2617.23.14 and
some other minor revisions.

This patch implements: 

WL#4264 "Backup: Stabilize Service Interface" -- all the
server prerequisites except si_objects.{h,cc} themselves (they can
be just copied over, when needed).

WL#4435: Support OUT-parameters in prepared statements.

(and all issues in the initial patches for these two
tasks, that were discovered in pushbuild and during testing).

Bug#39519: mysql_stmt_close() should flush all data
associated with the statement.

After execution of a prepared statement, send OUT parameters of the invoked
stored procedure, if any, to the client.

When using the binary protocol, send the parameters in an additional result
set over the wire.  When using the text protocol, assign out parameters to
the user variables from the CALL(@var1, @var2, ...) specification.

The following refactoring has been made:
  - Protocol::send_fields() was renamed to Protocol::send_result_set_metadata();
  - A new Protocol::send_result_set_row() was introduced to incapsulate
    common functionality for sending row data.
  - Signature of Protocol::prepare_for_send() was changed: this operation
    does not need a list of items, the number of items is fully sufficient.

The following backward incompatible changes have been made:
  - CLIENT_MULTI_RESULTS is now enabled by default in the client;
  - CLIENT_PS_MULTI_RESUTLS is now enabled by default in the client.
2009-10-22 00:02:06 +04:00
Sergey Glukhov
7741d9b50d WL#751 Error message construction, backport 2009-10-15 17:23:43 +05:00
Konstantin Osipov
62672568bd Backport to 5.4 the following changesets:
revno: 2476.785.24
committer: kostja@bodhi.(none)
timestamp: Tue 2007-10-16 20:19:00 +0400
message:
  Reflect a rename of a member in the client ABI (a compatible change).
----------------------------------------------------------
revno: 2476.423.26
committer: kostja@bodhi.(none)
timestamp: Tue 2007-10-16 20:12:37 +0400
message:
  Update the client ABI to reflect member rename
  (this is a backward-compatible change).
----------------------------------------------------------
revno: 2476.785.22
committer: kostja@bodhi.(none)
timestamp: Tue 2007-10-16 19:37:25 +0400
message:
  Remove some remains of support of 3.22 protocol. This was in fact dead code,
  since the option to talk 3.22 protocol was removed in 4.1 and there
  is no other protocol negotiation mechanism besides this option.
2009-10-09 13:06:41 +04:00
Alexander Barkov
482d3bfd80 Backporting WL#3759 Optimize identifier conversion in client-server protocol
This patch provides performance improvements:
- send_fields() when character_set_results = latin1
  is now about twice faster for column/table/database
  names, consisting on ASCII characters.

Changes:

- Protocol doesn't use "convert" temporary buffer anymore,
  and converts strings directly to "packet".

- General conversion optimization: quick conversion
  of ASCII strings was added.

modified files:

include/m_ctype.h
- Adding a new flag.
- Adding a new function prototype

libmysqld/lib_sql.cc
- Adding quick conversion method for embedded library:
  conversion is now done directly to result buffer,
  without using a temporary buffer.

mysys/charset.c
- Mark all dynamic ucs2 character sets as non-ASCII
- Mark some dymamic 7bit and 8bit charsets as non-ASCII
  (for example swe7 is not fully ASCII compatible).

sql/protocol.cc
- Adding quick method to convert a string directly
  into protocol buffer, without using a temporary buffer.

sql/protocol.h
- Adding a new method prototype

sql/sql_string.cc
  Optimization for conversion between two ASCII-compatible charsets:
- quickly convert ASCII strings,
  switch to mc_wc->wc_mb method only when a non-ASCII character is met.
- copy four ASCII characters at once on i386

strings/conf_to_src.c
- Marking non-ASCII character sets with a flag.

strings/ctype-extra.c
- Regenerating ctype-extra.c by running "conf_to_src".

strings/ctype-uca.c
- Marking UCS2 character set as non-ASCII.

strings/ctype-ucs2.c
- Marking UCS2 character set as non-ASCII.

strings/ctype.c
- A new function to detect if a 7bit or 8bit character set
  is ascii compatible.
2009-09-30 10:09:28 +05:00
Marc Alff
d5fd452d7c WL#2110 (SIGNAL)
WL#2265 (RESIGNAL)

Manual merge of SIGNAL and RESIGNAL to mysql-trunk-signal,
plus required dependencies.
2009-09-10 03:18:29 -06:00
Kristofer Pettersson
d480b64f5b Bug#44521 Executing a stored procedure as a prepared statement can sometimes cause
an assertion in a debug build.

The reason is that the C API doesn't support multiple result sets for prepared
statements and attempting to execute a stored routine which returns multiple result
sets sometimes lead to a network error. The network error sets the diagnostic area
prematurely which later leads to the assert when an attempt is made to set a second
server state.

This patch fixes the issue by changing the scope of the error code returned by
sp_instr_stmt::execute() to include any error which happened during the execution.
To assure that Diagnostic_area::is_sent really mean that the message was sent all
network related functions are checked for return status.
2009-07-29 22:07:08 +02:00
Georgi Kodinov
32a48f06a2 merged 5.0-bugteam -> 5.1-bugteam.
Fixed a warning in 5.1 caused by missing type cast.
2009-02-27 10:03:47 +02:00
Ramil Kalimullin
3a29b7afaa Auto-merge 2009-02-26 16:14:33 +04:00
Ramil Kalimullin
c8e908ffcc Fix for bug#19829:make test Failed in mysql_client_test
*with --with-charset=utf8*

Problem: wrong LONG TEXT field length is sent to a client 
when multibyte server character set used.

Fix: always limit field length sent to a client to 2^32,
as we store it in 4 byte slot.

Note: mysql_client_test changed accordingly.
2009-02-26 12:34:15 +04:00
Mattias Jonsson
07e9a6dc2a Bug#20129: ALTER TABLE ... REPAIR PARTITION ... complains that
partition is corrupt

The main problem was that ALTER TABLE t ANALYZE/CHECK/OPTIMIZE/REPAIR
PARTITION took another code path (over mysql_alter_table instead of
mysql_admin_table) which differs in two ways:
1) alter table opens the tables in a different way than admin tables do
   resulting in returning with error before it tried the command
2) alter table does not start to send any diagnostic rows to the client
   which the lower admin functions continue to use -> resulting in
   assertion crash

The fix:
Remapped ALTER TABLE t ANALYZE/CHECK/OPTIMIZE/REPAIR PARTITION to use
the same code path as ANALYZE/CHECK/OPTIMIZE/REPAIR TABLE t.
Adding check in mysql_admin_table to setup the partition list for
which partitions that should be used.


Partitioned tables will still not work with
REPAIR TABLE/PARTITION USE_FRM, since that requires moving partitions
to tables, REPAIR TABLE t USE_FRM, and check that the data still
fulfills the partitioning function and then move the table back to
being a partition.

NOTE: I have removed the following functions from the handler
interface:
analyze_partitions, check_partitions, optimize_partitions,
repair_partitions
Since they are not longer needed.
THIS ALTERS THE STORAGE ENGINE API
2008-08-11 20:02:03 +02:00
kostja@dipika.(none)
f106d9738a Rename send_ok to my_ok. Similarly to my_error, it only records the status,
does not send it to the client.
2008-02-19 15:45:21 +03:00
serg@janus.mylan
d9ca7b670e Merge bk-internal.mysql.com:/home/bk/mysql-5.1-maint
into  janus.mylan:/usr/home/serg/Abk/mysql-5.1
2007-12-20 22:11:37 +01:00
cmiller@zippy.cornsilk.net
c940d64a69 Merge bk-internal.mysql.com:/home/bk/mysql-5.1-maint
into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-maint
2007-12-14 10:52:10 -05:00
anozdrin/alik@station.
151444c626 Merge station.:/mnt/raid/alik/MySQL/devel/5.1
into  station.:/mnt/raid/alik/MySQL/devel/5.1-rt
2007-12-14 16:30:22 +03:00
gluh@eagle.(none)
4f5868114a Merge mysql.com:/home/gluh/MySQL/Merge/5.1
into  mysql.com:/home/gluh/MySQL/Merge/5.1-opt
2007-12-13 15:56:04 +04:00
kostja@bodhi.(none)
098832c5ca Fix a compilation error. 2007-12-13 04:19:23 +03:00
kostja@bodhi.(none)
ebb9c5d983 Bug#12713 "Error in a stored function called from a SELECT doesn't
cause ROLLBACK of statement", part 1. Review fixes.

Do not send OK/EOF packets to the client until we reached the end of 
the current statement.
This is a consolidation, to keep the functionality that is shared by all 
SQL statements in one place in the server.
Currently this functionality includes:
- close_thread_tables()
- log_slow_statement().

After this patch and the subsequent patch for Bug#12713, it shall also include:
- ha_autocommit_or_rollback()
- net_end_statement()
- query_cache_end_of_result().

In future it may also include:
- mysql_reset_thd_for_next_command().
2007-12-12 18:21:01 +03:00
tnurnberg@white.intern.koehntopp.de
b445a5443e Merge tnurnberg@bk-internal.mysql.com:/home/bk/mysql-5.1-opt
into  mysql.com:/misc/mysql/32707/51-32707
2007-12-01 13:10:59 +01:00
tnurnberg@white.intern.koehntopp.de
3900e55aa8 Merge tnurnberg@bk-internal.mysql.com:/home/bk/mysql-5.0-opt
into  mysql.com:/misc/mysql/32707/50-32707
2007-12-01 13:09:16 +01:00
holyfoot/hf@hfmain.(none)
34de307073 Merge mysql.com:/home/hf/work/mrg/my50-mrg
into  mysql.com:/home/hf/work/mrg/my51-mrg
2007-12-01 00:46:44 +04:00
anozdrin/alik@ibm.
8377c71f41 A patch for BUG#32148: killing a query may be ineffective.
The problem was that THD::killed was reset after a command was
read from the socket, but before it was actually handled. That lead
to a race: if another KILL statement was issued for this connection
in the middle of reading from the socket and processing a command,
THD::killed state would be cleaned.

The fix is to move this cleanup into net_send_error() function.

A sample test case exists in binlog_killed.test:
  - connection 1: start a new transaction on table t1;
  - connection 2: send query to the server (w/o waiting for the
    result) to update data in table t1 -- this query will be blocked
    since there is unfinished transaction;
  - connection 1: kill query in connection 2 and finish the transaction;
  - connection 2: get result of the previous query -- it should be
    the "query-killed" error.

This test however contains race condition, which can not be fixed
with the current protocol: there is no way to guarantee, that the
server will receive and start processing the query in connection 2
(which is intended to get blocked) before the KILL command (sent in
the connection 1) will arrive. In other words, there is no way to
ensure that the following sequence will not happen:

  - connection 1: start a new transaction on table t1;
  - connection 1: kill query in connection 2 and finish the transaction;
  - connection 2: send query to the server (w/o waiting for the
    result) to update data in table t1 -- this query will be blocked
    since there is unfinished transaction;
  - connection 2: get result of the previous query -- the query will
    succeed.

So, there is no test case for this bug, since it's impossible
to write a reliable test case under the current circumstances.
2007-11-30 16:12:20 +03:00
tnurnberg@white.intern.koehntopp.de
a7949e1141 Merge mysql.com:/misc/mysql/32707/50-32707
into  mysql.com:/misc/mysql/32707/51-32707
2007-11-30 12:48:03 +01:00
tnurnberg@white.intern.koehntopp.de
beee8954e1 Merge mysql.com:/misc/mysql/32707/41-32707
into  mysql.com:/misc/mysql/32707/50-32707
2007-11-30 12:44:28 +01:00
holyfoot/hf@mysql.com/hfmain.(none)
9786ccd0a0 Bug #32624 Error with multi queries in MySQL embedded server 5.1.22.
server status wasn't properly sent to the client after the error
by the embedded server. Wasn't noticed before as one usually stopped
retrieving results after he gets an error.
2007-11-29 10:37:07 +04:00
tnurnberg@mysql.com/white.intern.koehntopp.de
46ee271e8f Bug#32707: misdimensioned buffer in protocol layer
Miscalculation in protocol-layer: size buffer correctly so
even really long error messages cannot overflow our buffer.
2007-11-27 18:24:24 +01:00
kostja@bodhi.(none)
c0bb7f8682 Remove net_printf_error(). Do not talk to network directly in
check_user()/check_connection()/check_for_max_user_connections().

This is a pre-requisite patch for the fix for Bug#12713 "Error in a stored 
function called from a SELECT doesn't cause ROLLBACK of statem"

Implement review comments.
2007-11-01 00:10:58 +03:00
malff@lambda.weblab
0909d1f8cb Merge lambda.weblab:/home/malff/TREE/mysql-5.1-base
into  lambda.weblab:/home/malff/TREE/mysql-5.1-rt-merge
2007-10-29 08:07:27 -06:00
gluh@eagle.(none)
17acda6ca8 Merge mysql.com:/home/gluh/MySQL/Merge/5.1
into  mysql.com:/home/gluh/MySQL/Merge/5.1-opt
2007-10-23 19:08:21 +05:00
kostja@bodhi.(none)
7c00f8a3b4 Rename: query_error -> is_slave_error.
Add comments.
2007-10-20 01:20:38 +04:00
kostja@bodhi.(none)
227e13c4ca Remove an unused variable that was there since the first implementation
of the stored procedure cursors (materialized on disk).
2007-10-15 15:45:20 +04:00
cmiller@zippy.cornsilk.net
2d615a6169 Doxygenized comments. 2007-10-11 14:37:45 -04:00
evgen@sunlight.local
4fd6de8b1a Merge sunlight.local:/local_work/27216-bug-5.0-opt-mysql
into  sunlight.local:/local_work/merge-5.1-opt-mysql
2007-09-24 17:23:40 +04:00
evgen@sunlight.local
36bf417b40 Bug#27216: functions with parameters of different date types may return wrong
type of the result.

There are several functions that accept parameters of different types.
The result field type of such functions was determined based on
the aggregated result type of its arguments. As the DATE and the DATETIME
types are represented by the STRING type, the result field type
of the affected functions was always STRING for DATE/DATETIME arguments.
The affected functions are COALESCE, IF, IFNULL, CASE, LEAST/GREATEST, CASE.

Now the affected functions aggregate the field types of their arguments rather
than their result types and return the result of aggregation as their result
field type.
The cached_field_type member variable is added to the number of classes to
hold the aggregated result field type.
The str_to_date() function's result field type now defaults to the
MYSQL_TYPE_DATETIME.
The agg_field_type() function is added. It aggregates field types with help
of the Field::field_type_merge() function.
The create_table_from_items() function now uses the 
item->tmp_table_field_from_field_type() function to get the proper field
when the item is a function with a STRING result type.
2007-09-22 11:49:27 +04:00
msvensson@pilot.blaudden
a65d12a830 Backport of TIME->MYSQL_TIME / Y2K fixset
Made year 2000 handling more uniform
Removed year 2000 handling out from calc_days()
The above removes some bugs in date/datetimes with year between 0 and 200
Now we get a note when we insert a datetime value into a date column
For default values to CREATE, don't give errors for warning level NOTE
Fixed some compiler failures
Added library ws2_32 for windows compilation (needed if we want to compile with IOCP support)
Removed duplicate typedef TIME and replaced it with MYSQL_TIME

Better (more complete) fix for: Bug#21103 "DATE column not compared as DATE"
Fixed properly Bug#18997 "DATE_ADD and DATE_SUB perform year2K autoconversion magic on 4-digit year value"
Fixed Bug#23093 "Implicit conversion of 9912101 to date does not match cast(9912101 as date)"
2007-05-16 10:44:59 +02:00
monty@mysql.com/narttu.mysql.fi
088e2395f1 WL#3817: Simplify string / memory area types and make things more consistent (first part)
The following type conversions was done:

- Changed byte to uchar
- Changed gptr to uchar*
- Change my_string to char *
- Change my_size_t to size_t
- Change size_s to size_t

Removed declaration of byte, gptr, my_string, my_size_t and size_s. 

Following function parameter changes was done:
- All string functions in mysys/strings was changed to use size_t
  instead of uint for string lengths.
- All read()/write() functions changed to use size_t (including vio).
- All protocoll functions changed to use size_t instead of uint
- Functions that used a pointer to a string length was changed to use size_t*
- Changed malloc(), free() and related functions from using gptr to use void *
  as this requires fewer casts in the code and is more in line with how the
  standard functions work.
- Added extra length argument to dirname_part() to return the length of the
  created string.
- Changed (at least) following functions to take uchar* as argument:
  - db_dump()
  - my_net_write()
  - net_write_command()
  - net_store_data()
  - DBUG_DUMP()
  - decimal2bin() & bin2decimal()
- Changed my_compress() and my_uncompress() to use size_t. Changed one
  argument to my_uncompress() from a pointer to a value as we only return
  one value (makes function easier to use).
- Changed type of 'pack_data' argument to packfrm() to avoid casts.
- Changed in readfrm() and writefrom(), ha_discover and handler::discover()
  the type for argument 'frmdata' to uchar** to avoid casts.
- Changed most Field functions to use uchar* instead of char* (reduced a lot of
  casts).
- Changed field->val_xxx(xxx, new_ptr) to take const pointers.

Other changes:
- Removed a lot of not needed casts
- Added a few new cast required by other changes
- Added some cast to my_multi_malloc() arguments for safety (as string lengths
  needs to be uint, not size_t).
- Fixed all calls to hash-get-key functions to use size_t*. (Needed to be done
  explicitely as this conflict was often hided by casting the function to
  hash_get_key).
- Changed some buffers to memory regions to uchar* to avoid casts.
- Changed some string lengths from uint to size_t.
- Changed field->ptr to be uchar* instead of char*. This allowed us to
  get rid of a lot of casts.
- Some changes from true -> TRUE, false -> FALSE, unsigned char -> uchar
- Include zlib.h in some files as we needed declaration of crc32()
- Changed MY_FILE_ERROR to be (size_t) -1.
- Changed many variables to hold the result of my_read() / my_write() to be
  size_t. This was needed to properly detect errors (which are
  returned as (size_t) -1).
- Removed some very old VMS code
- Changed packfrm()/unpackfrm() to not be depending on uint size
  (portability fix)
- Removed windows specific code to restore cursor position as this
  causes slowdown on windows and we should not mix read() and pread()
  calls anyway as this is not thread safe. Updated function comment to
  reflect this. Changed function that depended on original behavior of
  my_pwrite() to itself restore the cursor position (one such case).
- Added some missing checking of return value of malloc().
- Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid 'long' overflow.
- Changed type of table_def::m_size from my_size_t to ulong to reflect that
  m_size is the number of elements in the array, not a string/memory
  length.
- Moved THD::max_row_length() to table.cc (as it's not depending on THD).
  Inlined max_row_length_blob() into this function.
- More function comments
- Fixed some compiler warnings when compiled without partitions.
- Removed setting of LEX_STRING() arguments in declaration (portability fix).
- Some trivial indentation/variable name changes.
- Some trivial code simplifications:
  - Replaced some calls to alloc_root + memcpy to use
    strmake_root()/strdup_root().
  - Changed some calls from memdup() to strmake() (Safety fix)
  - Simpler loops in client-simple.c
2007-05-10 12:59:39 +03:00
monty@mysql.com/narttu.mysql.fi
1933603647 Removed not used define YY_MAGIC_BELOW
Made year 2000 handling more uniform
Removed year 2000 handling out from calc_days()
The above removes some bugs in date/datetimes with year between 0 and 200
Now we get a note when we insert a datetime value into a date column
For default values to CREATE, don't give errors for warning level NOTE
Fixed some compiler failures
Added library ws2_32 for windows compilation (needed if we want to compile with IOCP support)
Removed duplicate typedef TIME and replaced it with MYSQL_TIME

Better (more complete) fix for: Bug#21103 "DATE column not compared as DATE"
Fixed properly Bug#18997 "DATE_ADD and DATE_SUB perform year2K autoconversion magic on 4-digit year value"
Fixed Bug#23093 "Implicit conversion of 9912101 to date does not match cast(9912101 as date)"
2007-03-23 22:08:31 +02:00
guilhem@gbichot3.local
eaf7728d9f Fix for BUG#735 "Prepared Statements: there is no support for Query
Cache".
WL#1569 "Prepared Statements: implement support of Query Cache".
Prepared SELECTs did not look up in the query cache, and their results
were not stored in the query cache. This made them slower than
non-prepared SELECTs in some cases.
The fix is to re-use the expanded query (the prepared query where
"?" placeholders are replaced by their values, at execution time)
for searching/storing in the query cache.
It works fine for statements prepared via mysql_stmt_prepare(), which
are the most commonly used and were the scope of this bugfix and WL.
It works less fine for statements prepared via the SQL command
PREPARE...FROM, which are still not using the query cache if they
have at least one parameter (because then the expanded query contains
names of user variables, and user variables don't work with the
query cache, even in non-prepared queries).
Note that results from prepared SELECTs, which are in the binary
protocol, and results from normal SELECTs, which are in the text
protocol, ignore each other in the query cache, because a result in the
binary protocol should never be served to a SELECT expecting the text
protocol and vice-versa.
Note, after this patch, bug 25843 starts applying to query cache
("changing default database between PREPARE and EXECUTE of statement
breaks binlog"), we need to fix it.
2007-03-09 18:09:57 +01:00
guilhem@gbichot3.local
8efe1b1fae manual merge 2007-03-09 16:06:08 +01:00
guilhem@gbichot3.local
be389f62de Mechanical class renaming:
Protocol_simple->Protocol_text; Protocol_prep->Protocol_binary
and also THD::protocol_simple->THD::protocol_text,
THD::protocol_prep->THD::protocol_binary.
Reason: the binary protocol is not bound to be used only with
prepared statements long term (see WL#3559 "Decouple binary protocol
from prepared statements"). Renaming now is pressing because
the fix for BUG#735 "Prepared Statements: there is
no support for Query Cache" will introduce a new member
in class Query_cache_flags telling about the protocol's nature.
Other reason: "simple" is less accurate than "text".
Future patches for BUG#735 will rely on this cset.
2007-01-30 22:48:05 +01:00