Commit graph

1683 commits

Author SHA1 Message Date
unknown
2e3e6ef15c Merge zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.0-maint
into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-maint


mysql-test/r/ctype_utf8.result:
  Auto merged
mysql-test/t/ctype_utf8.test:
  Auto merged
sql/sql_select.cc:
  Auto merged
2006-09-05 17:09:52 -04:00
unknown
b128cfa851 Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.1
into  moonbone.local:/work/tmp_merge-5.1-opt-mysql


sql/ha_innodb.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sql_delete.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
2006-08-31 12:14:27 +04:00
unknown
f57382196b Merge moonbone.local:/work/tmp_merge-5.0-mysql
into  moonbone.local:/work/tmp_merge-5.1-opt-mysql


BUILD/check-cpu:
  Auto merged
include/config-netware.h:
  Auto merged
mysql-test/r/func_time.result:
  Auto merged
mysql-test/r/group_by.result:
  Auto merged
mysql-test/r/join_outer.result:
  Auto merged
mysql-test/r/ndb_condition_pushdown.result:
  Auto merged
mysql-test/r/range.result:
  Auto merged
mysql-test/r/select.result:
  Auto merged
mysql-test/r/subselect.result:
  Auto merged
mysql-test/r/type_datetime.result:
  Auto merged
mysql-test/r/user_var.result:
  Auto merged
mysql-test/r/view.result:
  Auto merged
mysql-test/t/func_time.test:
  Auto merged
mysql-test/t/range.test:
  Auto merged
mysql-test/t/select.test:
  Auto merged
mysql-test/t/type_datetime.test:
  Auto merged
mysql-test/t/view.test:
  Auto merged
sql/ha_innodb.cc:
  Auto merged
sql/item.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_func.h:
  Auto merged
sql/item_subselect.cc:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/opt_range.h:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_delete.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_load.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_update.cc:
  Auto merged
storage/innobase/btr/btr0btr.c:
  Auto merged
storage/innobase/buf/buf0buf.c:
  Auto merged
storage/innobase/dict/dict0dict.c:
  Auto merged
storage/innobase/fil/fil0fil.c:
  Auto merged
storage/innobase/fsp/fsp0fsp.c:
  Auto merged
storage/innobase/include/buf0buf.ic:
  Auto merged
storage/innobase/log/log0log.c:
  Auto merged
storage/innobase/log/log0recv.c:
  Auto merged
storage/innobase/os/os0file.c:
  Auto merged
storage/innobase/row/row0sel.c:
  Auto merged
storage/innobase/srv/srv0start.c:
  Auto merged
storage/innobase/ut/ut0dbg.c:
  Auto merged
tests/mysql_client_test.c:
  Auto merged
client/mysqltest.c:
  Manual merge
mysql-test/r/innodb_mysql.result:
  Manual merge
mysql-test/t/innodb_mysql.test:
  Manual merge
mysql-test/t/join_outer.test:
  Manual merge
sql/item_cmpfunc.cc:
  Manual merge
sql/mysql_priv.h:
  Manual merge
sql/opt_range.cc:
  Manual merge
sql/sql_base.cc:
  Manual merge
storage/innobase/include/btr0cur.ic:
  Manual merge
storage/innobase/row/row0mysql.c:
  Manual merge
2006-08-29 18:58:50 +04:00
unknown
2592d4a139 Merge lamia.home:/home/timka/mysql/src/5.0-bug-21456
into  lamia.home:/home/timka/mysql/src/5.1-bug-21456


mysql-test/r/distinct.result:
  Auto merged
sql/sql_select.cc:
  Auto merged
2006-08-29 16:39:09 +03:00
unknown
f121994de8 Fixed bug #21390: wrong estimate of rows after elimination of
const tables. This resulted in choosing extremely inefficient
execution plans in same cases when distribution of data in
joined were skewed (see the customer test case for the bug).



mysql-test/r/select.result:
  Added a test case for bug #21390: wrong estimate of rows
  after elimination of const tables.
  Includded a test case that checks the code added by the patch
  that handles outer joins with no matches after substitution of
  a const table in an efficient way.
mysql-test/t/select.test:
  Added a test case for bug #21390: wrong estimate of rows
  after elimination of const tables.
  Included a test case that checks the code added by the patch
  that handles outer joins with no matches after substitution of
  a const table in an efficient way.
sql/sql_select.cc:
  Fixed bug #21390: wrong estimate of rows after elimination of
  const tables. This resulted in choosing extremely inefficient
  execution plans in same cases when distribution of data in
  joined were skewed (see the customer test case for the bug).
  Also added the code to handle outer joins with no matches after
  substitution of a const table in an efficient way. 
  Corrected calculation of the null rejecting key conditions.
2006-08-25 02:17:41 -07:00
unknown
e3181c59e7 Merge lamia.home:/home/timka/mysql/src/4.1-bug-21456
into  lamia.home:/home/timka/mysql/src/5.0-bug-21456


mysql-test/r/distinct.result:
  Merge the fix for BUG#21456
mysql-test/t/distinct.test:
  Merge the fix for BUG#21456
sql/sql_select.cc:
  Merge the fix for BUG#21456
2006-08-23 18:22:53 +03:00
unknown
2baf2fdf13 Bug #21456: SELECT DISTINCT(x) produces incorrect results when using order by
GROUP BY/DISTINCT pruning optimization must be done before ORDER BY 
optimization because ORDER BY may be removed when GROUP BY/DISTINCT
sorts as a side effect, e.g. in 
  SELECT DISTINCT <non-key-col>,<pk> FROM t1
  ORDER BY <non-key-col> DISTINCT
must be removed before ORDER BY as if done the other way around
it will remove both.


mysql-test/r/distinct.result:
  Test for BUG#21456.
mysql-test/t/distinct.test:
  Test for BUG#21456.
sql/sql_select.cc:
  Bug #21456: SELECT DISTINCT(x) produces incorrect results when using order by
  
  GROUP BY/DISTINCT pruning optimization must be done before ORDER BY 
  optimization because ORDER BY may be removed when GROUP BY/DISTINCT
  sorts as a side effect.
2006-08-23 16:46:57 +03:00
unknown
3a23139aa4 Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.0-opt
into  sunlight.local:/local_work/16861-bug-5.0-mysql


sql/sql_select.cc:
  Auto merged
2006-08-22 17:39:18 +04:00
unknown
c623e54fb8 Fixed bug#16861: User defined variable can have a wrong value if a tmp table was
used.

Sorting by RAND() uses a temporary table in order to get a correct results.
User defined variable was set during filling the temporary table and later
on it is substituted for its value from the temporary table. Due to this
it contains the last value stored in the temporary table.

Now if the result_field is set for the Item_func_set_user_var object it 
updates variable from the result_field value when being sent to a client.

The Item_func_set_user_var::check() now accepts a use_result_field
parameter. Depending on its value the result_field or the args[0] is used
to get current value.


mysql-test/r/user_var.result:
  Added a test case for bug#16861: User defined variable can have a wrong value if a tmp table was used.
mysql-test/t/user_var.test:
  Added a test case for bug#16861: User defined variable can have a wrong value if a tmp table was used.
sql/item_func.cc:
  Fixed bug#16861: User defined variable can have a wrong value if a tmp table was used.
  Now if the result_field is set for the Item_func_set_user_var object it 
  updates variable from the result_field value when being sent to a client.
  
  The Item_func_set_user_var::check() now accepts a use_result_field
  parameter. Depending on its value the result_field or the args[0] is used
  to get current value.
sql/item_func.h:
  Fixed bug#16861: User defined variable can have a wrong value if a tmp table was used.
  Added a new SUSERVAR_FUNC function type.
  Updated the Item_func_set_user_var::check() function declaration.
  Added the Item_func_set_user_var::send() member function.
sql/set_var.cc:
  Fixed bug#16861: User defined variable can have a wrong value if a tmp table was used.
  Modified to use updated Item_func_set_user_var::check() function.
sql/sql_class.cc:
  Fixed bug#16861: User defined variable can have a wrong value if a tmp table was used.
  Modified to use updated Item_func_set_user_var::check() function.
sql/sql_select.cc:
  Fixed bug#16861: User defined variable can have a wrong value if a tmp table was used.
  Now an Item_func_set_user_var object isn't substituted for an Item_field object after filling a temporary table.
2006-08-22 17:37:41 +04:00
unknown
992aceaf71 Fix for bug#19403/12212 "Crash that happens during removing of database name
from cache" and #21216 "Simultaneous DROP TABLE and SHOW OPEN TABLES causes
server to crash".

Crash happened when one ran DROP DATABASE or SHOW OPEN TABLES statements
while concurrently doing DROP TABLE (or RENAME TABLE, CREATE TABLE LIKE
or any other command that takes name-lock) in other connection.

This problem was caused by the fact that table placeholders which were
added to table cache in order to obtain name-lock on table had
TABLE_SHARE::db and table_name set to 0. Therefore they broke assumption
that these members are non-0 for all tables in table cache on which some
of our code relies.

The fix sets these members for such placeholders to appropriate value making
this assumption true again. As attempt to avoid such problems in future
we introduce auxiliary TABLE_SHARE::set_table_cache_key() methods which
should be used when one wants to set TABLE_SHARE::table_cache_key and which
ensure that TABLE_SHARE::table_name/db are set properly.

Test cases for these bugs were added to 5.0 test-suite (with 5.0-specific
fix for bug #21216).


sql/lock.cc:
  Our code assumes that TABLE_SHARE::table_name/db for objects in table cache
  is set properly (and is non-NULL). For example look in list_open_tables()
  and remove_db_from_cache(). This was not true for table placeholders that
  were added to table cache for name-locking. Changed lock_table_name() to
  preserve this assumption (now it uses TABLE_SHARE::set_table_cache_key()
  to set all three table_cache_key/db/table_name members at once).
  Also now we use my_multi_malloc() to allocate memory for TABLE and
  TABLE_SHARE objects instead of using my_malloc() + summing sizes as
  it automatically provides proper alignment for memory allocated.
sql/sql_base.cc:
  Now we use TABLE_SHARE::set_table_cache_key() auxiliary methods to set
  TABLE_SHARE::table_cache_key/db/table_name members at once.
  We also use multi_alloc_root() instead of alloc_root() for allocating
  memory for several objects as it is less error prone.
  Finally, we also got rid of unused code in reopen_name_locked_table().
sql/sql_select.cc:
  Got rid of redundant code. TABLE_SHARE::db/table_cache_key are both set to
  empty string by the call to init_tmp_table_share() routine.
sql/table.cc:
  Now alloc_table_share() uses auxiliary TABLE_SHARE::set_table_cache_key()
  method to properly set TABLE_SHARE::table_cache_key/db/table_name members.
  Also now we use multi_alloc_root() instead of alloc_root() for allocating
  memory for several objects as it is more clear/less error-prone.
sql/table.h:
  Added comment about importance of apropriate setting of
  TABLE_SHARE::table_name/db/table_cache_key for tables in table cache.
  Introduced two auxiliary TABLE_SHARE::set_table_cache_key() methods which
  allow to set these three members at once.
2006-08-21 19:02:11 +04:00
unknown
7a11df8c93 Fixed bug#21475: Wrongly applied constant propagation leads to a false comparison.
A date can be represented as an int (like 20060101) and as a string (like
"2006.01.01"). When a DATE/TIME field is compared in one SELECT against both
representations the constant propagation mechanism leads to comparison
of DATE as a string and DATE as an int. In this example it compares 2006 and
20060101 integers. Obviously it fails comparison although they represents the
same date.


Now the Item_bool_func2::fix_length_and_dec() function sets the comparison
context for items being compared. I.e. if items compared as strings the
comparison context is STRING.
The constant propagation mechanism now doesn't mix items used in different
comparison contexts. The context check is done in the
Item_field::equal_fields_propagator() and in the change_cond_ref_to_const() 
functions.

Also the better fix for bug 21159 is introduced.


mysql-test/t/type_datetime.test:
  Added a test case for bug#21475: Wrongly applied constant propagation leads to a false comparison.
mysql-test/r/type_datetime.result:
  Added a test case for bug#21475: Wrongly applied constant propagation leads to a false comparison.
sql/sql_select.cc:
  Fixed bug#21475: Wrongly applied constant propagation leads to a false comparison.
  The constant propagation mechanism now doesn't mix items used in different
  comparison contexts. The check is done in the change_cond_ref_to_const() function.
sql/item_cmpfunc.cc:
  Fixed bug#21475: Wrongly applied constant propagation leads to a false comparison.
  Now the Item_bool_func2::fix_length_and_dec() function sets the comparison
  context for items being compared.
sql/item.h:
  Fixed bug#21475: Wrongly applied constant propagation leads to a false comparison.
  To the Item class a new field called cmp_context is added.
  It represents the comparison context of an item.
sql/item.cc:
  Fixed bug#21475: Wrongly applied constant propagation leads to a false comparison.
  The constant propagation mechanism now doesn't mix items used in different
  comparison contexts. The context check is done in the
  Item_field::equal_fields_propagator() function.
2006-08-21 00:23:57 +04:00
unknown
5a76d76007 Merge ibabaev@bk-internal.mysql.com:/home/bk/mysql-5.0-opt
into  rurik.mysql.com:/home/igor/mysql-5.0-opt


sql/sql_select.cc:
  Auto merged
2006-08-16 10:21:23 -07:00
unknown
c8cafde703 Fixed bug #18165.
Made [NOT]BETWEEN predicates SARGable in respect to the second and 
the third arguments.


mysql-test/r/range.result:
  Added a test case to bug #18165.
mysql-test/t/range.test:
  Added a test case to bug #18165.
sql/opt_range.cc:
  Fixed bug #18165.
  Made [NOT]BETWEEN predicates SARGable in respect to the second and 
  the third arguments.
  Put in a separate function called get_full_func_mm_tree the functionality
  that builds a conjunction of all SEL_TREEs for a simple predicate of the
  form (f op c), where f was a field and c was a constant, applying different
  equalities f=f' with f' being another field.
2006-08-16 09:37:19 -07:00
unknown
c234aaa0ed Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.0-opt
into  sunlight.local:/local_work/21261-bug-5.0-mysql


sql/sql_select.cc:
  Auto merged
sql/sql_update.cc:
  Auto merged
mysql-test/r/view.result:
  SCCS merged
mysql-test/t/view.test:
  SCCS merged
2006-08-16 18:17:58 +04:00
unknown
c55b9f5069 Merge mysql.com:/usr/home/bar/mysql-4.1
into  mysql.com:/usr/home/bar/mysql-4.1.b9509


mysql-test/r/ctype_utf8.result:
  Auto merged
mysql-test/t/ctype_utf8.test:
  Auto merged
sql/sql_select.cc:
  Auto merged
2006-08-16 09:31:24 +05:00
unknown
a23d1792bc Fixed bug#21261: Wrong access rights was required for an insert into a view
SELECT right instead of INSERT right was required for an insert into to a view.
This wrong behaviour appeared after the fix for bug #20989. Its intention was
to ask only SELECT right for all tables except the very first for a complex
INSERT query. But that patch has done it in a wrong way and lead to asking 
a wrong access right for an insert into a view.

The setup_tables_and_check_access() function now accepts two want_access
parameters. One will be used for the first table and the second for other
tables.


mysql-test/t/view.test:
  Added a test case for bug#21261: Wrong access rights was required for an insert into a view
mysql-test/r/view.result:
  Added a test case for bug#21261: Wrong access rights was required for an insert into a view
sql/sql_update.cc:
  Fixed bug#21261: Wrong access rights was required for an insert into a view
  Modified to use updated setup_tables_and_check_access() function.
sql/sql_select.cc:
  Fixed bug#21261: Wrong access rights was required for an insert into a view
  Modified to use updated setup_tables_and_check_access() function.
sql/sql_load.cc:
  Fixed bug#21261: Wrong access rights was required for an insert into a view
  Modified to use updated setup_tables_and_check_access() function.
sql/sql_insert.cc:
  Fixed bug#21261: Wrong access rights was required for an insert into a view
  Modified to use updated setup_tables_and_check_access() function.
sql/sql_delete.cc:
  Fixed bug#21261: Wrong access rights was required for an insert into a view
  Modified to use updated setup_tables_and_check_access() function.
sql/sql_base.cc:
  Fixed bug#21261: Wrong access rights was required for an insert into a view
  The setup_tables_and_check_access() function now accepts two want_access
  parameters. One will be used for the first table and the second for other
  tables.
sql/mysql_priv.h:
  Fixed bug#21261: Wrong access rights was required for an insert into a view
  The setup_tables_and_check_access() function now accepts two want_access
  parameters.
2006-08-15 21:45:24 +04:00
unknown
5bf943a95d Merge gkodinov@bk-internal.mysql.com:/home/bk/mysql-5.0-opt
into  rakia.(none):/home/kgeorge/mysql/autopush/B21159-5.0-opt


sql/sql_select.cc:
  Auto merged
2006-08-15 12:54:02 +03:00
unknown
fd65e53a8a Merge gkodinov@bk-internal.mysql.com:/home/bk/mysql-5.0-opt
into  rakia.(none):/home/kgeorge/mysql/autopush/B21174-5.0-opt


sql/sql_select.cc:
  Auto merged
2006-08-15 10:31:34 +03:00
unknown
a0474a811c Merge gkodinov@bk-internal.mysql.com:/home/bk/mysql-5.0-opt
into  rakia.(none):/home/kgeorge/mysql/autopush/B21159-5.0-opt


sql/sql_select.cc:
  Auto merged
2006-08-15 10:25:56 +03:00
unknown
3915c3d94c Bug #21159: Optimizer: wrong result after AND with different data types
Disable const propagation for Item_hex_string.
This must be done because Item_hex_string->val_int() is not
the same as (Item_hex_string->val_str() in BINARY column)->val_int().
We cannot simply disable the replacement in a particular context (
e.g. <bin_col> = <int_col> AND <bin_col> = <hex_string>) since
Items don't know the context they are in and there are functions like 
IF (<hex_string>, 'yes', 'no').
Note that this will disable some valid cases as well 
(e.g. : <bin_col> = <hex_string> AND <bin_col2> = <bin_col>) but 
there's no way to distinguish the valid cases without having the
Item's parent say something like : Item->set_context(Item::STRING_RESULT)
and have all the Items that contain other Items do that consistently.


mysql-test/r/compare.result:
  Bug #21159: Optimizer: wrong result after AND with different data types
   - test case
mysql-test/t/compare.test:
  Bug #21159: Optimizer: wrong result after AND with different data types
   - test case
sql/sql_select.cc:
  Bug #21159: Optimizer: wrong result after AND with different data types
   - disable const propagation for Item_hex_string.
2006-08-15 10:13:17 +03:00
unknown
6675c2c2d3 Bug #21174: Index degrades sort performance and
optimizer does not honor IGNORE INDEX
 - Allow an index to be used for sorting the table 
   instead of filesort only if it is not disabled by
   IGNORE INDEX.


mysql-test/r/group_by.result:
  Bug #21174: Index degrades sort performance and 
               optimizer does not honor IGNORE INDEX
   - test case
mysql-test/t/group_by.test:
  Bug #21174: Index degrades sort performance and 
               optimizer does not honor IGNORE INDEX
   - test case
2006-08-14 18:19:29 +03:00
unknown
06a302eff2 Bug #21302: Result not properly sorted when using an ORDER BY on a second
table in a join
 The optimizer removes redundant columns in ORDER BY. It is considering 
redundant every reference to const table column, e.g b in :
create table t1 (a int, b int, primary key(a)); 
select 1 from t1 order by b where a = 1

But it must not remove references to const table columns if the 
const table is an outer table because there still can be 2 values :
the const value and NULL. e.g.:
create table t1 (a int, b int, primary key(a));
select t2.b c from t1 left join t1 t2 on (t1.a = t2.a and t2.a = 5) 
  order by c;


mysql-test/r/join_outer.result:
  Bug #21302: Result not properly sorted when using an ORDER BY on a second 
              table in a join
   - don't remove columns of const tables in ORDER BY if the const table 
     is an outer table.
mysql-test/r/order_by.result:
  Bug #21302: Result not properly sorted when using an ORDER BY on a second 
              table in a join
   - test case
mysql-test/t/order_by.test:
  Bug #21302: Result not properly sorted when using an ORDER BY on a second 
              table in a join
   - test case
sql/sql_select.cc:
  Bug #21302: Result not properly sorted when using an ORDER BY on a second 
              table in a join
   - don't remove columns of const tables in ORDER BY if the const table 
     is an outer table.
2006-08-14 15:45:48 +03:00
unknown
22b92457fc Merge moonlight.intranet:/home/tomash/src/mysql_ab/tmp_merge
into  moonlight.intranet:/home/tomash/src/mysql_ab/mysql-5.1-merge


BitKeeper/deleted/.del-mysys.vcproj~40a49d09c4184822:
  Auto merged
configure.in:
  Auto merged
mysql-test/mysql-test-run.pl:
  Auto merged
mysql-test/r/func_time.result:
  Auto merged
mysql-test/r/warnings.result:
  Auto merged
mysql-test/t/func_time.test:
  Auto merged
mysql-test/t/mysqlbinlog.test:
  Auto merged
mysql-test/t/udf.test:
  Auto merged
mysql-test/t/warnings.test:
  Auto merged
BitKeeper/deleted/.del-mysqld.vcproj~6aa7b3f9c3e28fcb:
  Auto merged
sql/field.cc:
  Auto merged
sql/handler.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sp.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
support-files/mysql.spec.sh:
  Auto merged
mysql-test/r/sp.result:
  Manual merge.  Place 5.0 test before 5.1 test.
mysql-test/t/sp.test:
  Manual merge.  Place 5.0 test before 5.1 test.
mysys/my_bitmap.c:
  Manual merge.
scripts/make_binary_distribution.sh:
  Manual merge.
sql/Makefile.am:
  Manual merge.
sql/slave.cc:
  Manual merge.
sql/sql_class.h:
  Manual merge.
sql/sql_parse.cc:
  Manual merge.
sql/sql_select.cc:
  Manual merge.
tests/mysql_client_test.c:
  Manual merge.
2006-08-09 13:37:20 +04:00
unknown
c102fe94ad Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.0
into  moonbone.local:/work/tmp_merge-5.0-opt-mysql


client/mysql.cc:
  Auto merged
mysql-test/r/date_formats.result:
  Auto merged
mysql-test/r/func_str.result:
  Auto merged
mysql-test/t/date_formats.test:
  Auto merged
mysql-test/t/func_str.test:
  Auto merged
mysql-test/t/udf.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/field.h:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/time.cc:
  Auto merged
mysql-test/r/sp.result:
  Manual merge
mysql-test/t/sp.test:
  Manual merge
2006-08-02 16:44:56 +04:00
unknown
84ece59cef Merge moonbone.local:/work/tmp_merge-4.1
into  moonbone.local:/work/tmp_merge-4.1-opt-mysql


sql/item_strfunc.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
2006-08-02 16:10:52 +04:00
unknown
deee3a30d6 Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.1-opt
into  sunlight.local:/local_work/tmp_merge-5.1-opt-mysql


mysql-test/r/auto_increment.result:
  Auto merged
mysql-test/r/binlog_row_blackhole.result:
  Auto merged
mysql-test/r/binlog_stm_blackhole.result:
  Auto merged
mysql-test/r/date_formats.result:
  Auto merged
mysql-test/r/func_compress.result:
  Auto merged
mysql-test/r/func_gconcat.result:
  Auto merged
mysql-test/r/func_group.result:
  Auto merged
mysql-test/r/func_math.result:
  Auto merged
mysql-test/r/func_str.result:
  Auto merged
mysql-test/r/func_system.result:
  Auto merged
mysql-test/r/func_time.result:
  Auto merged
mysql-test/r/gis.result:
  Auto merged
mysql-test/r/group_by.result:
  Auto merged
mysql-test/r/group_min_max.result:
  Auto merged
mysql-test/r/myisam.result:
  Auto merged
mysql-test/r/olap.result:
  Auto merged
mysql-test/r/partition_pruning.result:
  Auto merged
mysql-test/r/query_cache.result:
  Auto merged
mysql-test/r/rpl_get_lock.result:
  Auto merged
mysql-test/r/rpl_master_pos_wait.result:
  Auto merged
mysql-test/r/select.result:
  Auto merged
mysql-test/r/subselect.result:
  Auto merged
mysql-test/r/type_blob.result:
  Auto merged
mysql-test/r/union.result:
  Auto merged
mysql-test/r/variables.result:
  Auto merged
mysql-test/r/view.result:
  Auto merged
mysql-test/t/group_min_max.test:
  Auto merged
mysql-test/t/partition_pruning.test:
  Auto merged
sql/opt_range.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/table.h:
  Auto merged
2006-08-01 09:24:19 +04:00
unknown
f75e79e0fc After merge fix 2006-08-01 08:49:43 +04:00
unknown
749091a9ec Merge sunlight.local:/local_work/tmp_merge-5.0-opt-mysql
into  sunlight.local:/local_work/tmp_merge-5.1-opt-mysql


mysql-test/r/func_group.result:
  Auto merged
sql/sql_select.cc:
  Auto merged
mysql-test/r/select.result:
  SCCS merged
2006-07-31 23:49:52 +04:00
unknown
45871dbfd9 select.result, func_group.result, sql_select.cc:
After merge fix


mysql-test/r/select.result:
  After merge fix
mysql-test/r/func_group.result:
  After merge fix
sql/sql_select.cc:
  After merge fix
2006-07-31 23:05:54 +04:00
unknown
ddb91478e8 Merge sunlight.local:/local_work/tmp_merge-5.0-opt-mysql
into  sunlight.local:/local_work/tmp_merge-5.1-opt-mysql


client/mysql.cc:
  Auto merged
mysql-test/r/date_formats.result:
  Auto merged
mysql-test/r/func_gconcat.result:
  Auto merged
mysql-test/r/func_group.result:
  Auto merged
mysql-test/r/func_str.result:
  Auto merged
mysql-test/r/group_min_max.result:
  Auto merged
BitKeeper/deleted/.del-make_win_src_distribution.sh~f80d8fca44e4e5f1:
  Auto merged
BitKeeper/deleted/.del-mysqld.dsp~ffdbf2d234e23e56:
  Auto merged
BitKeeper/deleted/.del-mysqld_ia64.dsp~7f8cf84d81ee04e2:
  Auto merged
BitKeeper/deleted/.del-mysqldump.dsp~a8bd23547d3fc27e:
  Auto merged
BitKeeper/deleted/.del-mysqldump_ia64.dsp~a2aabe898be35b31:
  Auto merged
mysql-test/r/innodb.result:
  Auto merged
mysql-test/r/innodb_mysql.result:
  Auto merged
mysql-test/r/ps_7ndb.result:
  Auto merged
mysql-test/r/type_ranges.result:
  Auto merged
mysql-test/r/udf.result:
  Auto merged
mysql-test/r/union.result:
  Auto merged
mysql-test/r/view.result:
  Auto merged
mysql-test/t/date_formats.test:
  Auto merged
mysql-test/t/func_gconcat.test:
  Auto merged
mysql-test/t/func_group.test:
  Auto merged
mysql-test/t/group_min_max.test:
  Auto merged
mysql-test/t/innodb.test:
  Auto merged
mysql-test/t/innodb_mysql.test:
  Auto merged
mysql-test/t/mysql.test:
  Auto merged
mysql-test/t/select.test:
  Auto merged
mysql-test/t/sp.test:
  Auto merged
mysql-test/t/view.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_func.h:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/item_subselect.cc:
  Auto merged
sql/item_subselect.h:
  Auto merged
sql/opt_range.h:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/time.cc:
  Auto merged
storage/ndb/test/ndbapi/Makefile.am:
  Auto merged
strings/decimal.c:
  Auto merged
mysql-test/r/analyse.result:
  Manual merge
mysql-test/r/bigint.result:
  Manual merge
mysql-test/r/create.result:
  Manual merge
mysql-test/r/information_schema.result:
  Manual merge
mysql-test/r/ps_2myisam.result:
  Manual merge
mysql-test/r/ps_3innodb.result:
  Manual merge
mysql-test/r/ps_4heap.result:
  Manual merge
mysql-test/r/ps_5merge.result:
  Manual merge
mysql-test/r/ps_6bdb.result:
  Manual merge
mysql-test/r/rpl_insert_id.result:
  Manual merge
mysql-test/r/select.result:
  Manual merge
mysql-test/r/sp.result:
  Manual merge
mysql-test/r/subselect.result:
  Manual merge
mysql-test/t/information_schema.test:
  Manual merge
mysql-test/t/rpl_insert_id.test:
  Manual merge
sql/field.h:
  Manual merge
sql/item.cc:
  Manual merge
sql/item.h:
  Manual merge
sql/item_strfunc.h:
  Manual merge
sql/item_sum.cc:
  Manual merge
sql/mysql_priv.h:
  Manual merge
sql/share/errmsg.txt:
  Manual merge
sql/sql_class.h:
  Manual merge
sql/sql_select.cc:
  Manual merge
2006-07-30 00:33:24 +04:00
unknown
08be4e96a9 Merge sunlight.local:/local_work/tmp_merge-4.1-opt-mysql
into  sunlight.local:/local_work/tmp_merge-5.0-opt-mysql


mysql-test/t/select.test:
  Auto merged
sql/sql_select.cc:
  Auto merged
mysql-test/r/func_group.result:
  Manual merge
mysql-test/r/select.result:
  Manual merge
mysql-test/r/subselect.result:
  Manual merge
2006-07-29 23:59:53 +04:00
unknown
fc466665b7 Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.1
into  sunlight.local:/local_work/tmp_merge-5.1-opt-mysql


mysql-test/r/partition_pruning.result:
  Auto merged
mysql-test/t/partition_pruning.test:
  Auto merged
sql/sql_partition.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
2006-07-29 23:54:55 +04:00
unknown
ba718a45fc Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.1-opt
into  sunlight.local:/home/evgen/bk-trees/mysql-5.1-opt


sql/sql_select.cc:
  Auto merged
2006-07-29 23:44:40 +04:00
unknown
74214b8635 Merge moonlight.intranet:/home/tomash/src/mysql_ab/tmp_merge
into  moonlight.intranet:/home/tomash/src/mysql_ab/mysql-5.0-merge


configure.in:
  Auto merged
man/Makefile.am:
  Auto merged
mysys/my_bitmap.c:
  Auto merged
scripts/make_binary_distribution.sh:
  Auto merged
sql/field.cc:
  Auto merged
sql/sql_locale.cc:
  Auto merged
support-files/mysql.spec.sh:
  Auto merged
mysql-test/t/mysqlbinlog.test:
  Manual merge.
sql/sql_select.cc:
  Manual merge.
2006-07-29 13:43:34 +04:00
unknown
8d73c0b392 sql_select.cc:
Renamed variable, to avoid name clash with macro "rem_size"
  on AIX 5.3 and "/usr/include/sys/xmem.h" (bug#17648)
asn.cpp, asn.hpp:
  Avoid name clash with NAME_MAX


sql/sql_select.cc:
  Renamed variable, to avoid name clash with macro "rem_size"
  on AIX 5.3 and "/usr/include/sys/xmem.h" (bug#17648)
extra/yassl/taocrypt/src/asn.cpp:
  Avoid name clash with NAME_MAX
extra/yassl/taocrypt/include/asn.hpp:
  Avoid name clash with NAME_MAX
2006-07-28 21:26:46 +02:00
unknown
ef452e19bf BUG#14940 "MySQL choose wrong index", v.2
- Make the range-et-al optimizer produce E(#table records after table 
                                           condition is applied),
- Make the join optimizer use this value,
- Add "filtered" column to EXPLAIN EXTENDED to show 
  fraction of records left after table condition is applied
- Adjust test results, add comments


mysql-test/r/archive_gis.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/auto_increment.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/bdb_gis.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/bench_count_distinct.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/binlog_stm_blackhole.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/case.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/cast.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/compress.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/ctype_collate.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/ctype_cp1250_ch.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/date_formats.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/distinct.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/fulltext.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_compress.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_crypt.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_default.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_encrypt.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_gconcat.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_group.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_if.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_in.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_like.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_math.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_op.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_regexp.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_set.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_str.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_system.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_test.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/func_time.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/gis.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/group_by.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/group_min_max.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/having.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/heap.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/heap_hash.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/index_merge.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/index_merge_innodb.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/index_merge_ror.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/innodb_gis.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/insert_update.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/join.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/join_nested.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/key_diff.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/myisam.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/ndb_gis.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/negation_elimination.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/null.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/olap.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/partition_pruning.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/query_cache.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/row.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/rpl_get_lock.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/rpl_master_pos_wait.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/select.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/ssl.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/ssl_compress.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/subselect.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/type_blob.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/union.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/varbinary.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/variables.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/r/view.result:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/t/ctype_cp1250_ch.test:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/t/func_like.test:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/t/group_min_max.test:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/t/index_merge_ror.test:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/t/index_merge_ror_cpk.test:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/t/join.test:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
mysql-test/t/partition_pruning.test:
  BUG#14940: Adjust the test results: EXPLAIN EXTENDED now has extra "filtered" column
sql/opt_range.cc:
  BUG#14940: Make range/index_merge/group-min-max optimizer produce TABLE::quick_condition_rows -
    estimate of #records that will match the table condition.
sql/sql_class.cc:
  BUG#14940: Add "filtered" column to output of EXPLAIN EXTENDED
sql/sql_select.cc:
  BUG#14940: 
  - Make the join optimizer to use TABLE::quick_condition_rows=
    = E(#table records after filtering with table condition) 
  - Add "filtered" column to output of EXPLAIN EXTENDED
sql/sql_select.h:
  BUG#14940: Added comments
sql/table.h:
  BUG#14940: Added comments
2006-07-28 21:27:01 +04:00
unknown
667c73be65 Merge gkodinov@bk-internal.mysql.com:/home/bk/mysql-5.0-opt
into  rakia.(none):/home/kgeorge/mysql/autopush/B21019-5.0-opt


sql/sql_select.cc:
  Auto merged
2006-07-27 10:11:13 +03:00
unknown
9c7a329eba Merge gkodinov@bk-internal.mysql.com:/home/bk/mysql-4.1-opt
into  rakia.(none):/home/kgeorge/mysql/autopush/B20792-4.1-opt


sql/sql_select.cc:
  Auto merged
2006-07-27 10:06:37 +03:00
unknown
d81d6e7430 Merge gkodinov@bk-internal.mysql.com:/home/bk/mysql-5.0-opt
into  rakia.(none):/home/kgeorge/mysql/autopush/B20792-5.0-opt


sql/sql_select.cc:
  Auto merged
2006-07-27 10:05:03 +03:00
unknown
1150869c4a item_func.h, item_func.cc, sql_select.cc, item.h:
Post review changes for bug#19862.


sql/sql_select.cc:
  Post review changes for bug#19862.
sql/item_func.h:
  Post review changes for bug#19862.
sql/item_func.cc:
  Post review changes for bug#19862.
sql/item.h:
  Post review changes for bug#19862.
2006-07-26 21:36:03 +04:00
unknown
bb81f6ac2d Merge gkodinov@bk-internal.mysql.com:/home/bk/mysql-4.1-opt
into  rakia.(none):/home/kgeorge/mysql/autopush/B20792-4.1-opt


sql/sql_select.cc:
  Auto merged
2006-07-26 19:55:33 +03:00
unknown
c7c8c33c5b Merge macbook.gmz:/Users/kgeorge/mysql/work/B20792-4.1-opt
into  macbook.gmz:/Users/kgeorge/mysql/work/B20792-5.0-opt


mysql-test/r/subselect2.result:
  Auto merged
sql/sql_select.cc:
  Auto merged
2006-07-26 19:23:44 +03:00
unknown
6b75e24b73 * Bug #20792: Incorrect results from aggregate subquery
When processing aggregate functions all tables values are reset
to NULLs at the end of each group. 
When doing that if there are no rows found for a group
the const tables must not be reset as they are not recalculated 
by do_select()/sub_select() for each group.


mysql-test/r/subselect2.result:
  * Bug #20792: Incorrect results from aggregate subquery
   - test suite for the bug. This is dependent on InnoDB despite
     the fact that the bug and the fix are not InnoDB specific.
     This is because of the table flag HA_NOT_EXACT_COUNT.
     When this flag is off (as in MyISAM) both t2 and t3 become of
     join type 'system' as they are estimated to have 1 record and
     and this statistics can be trusted (according to the absence of
     HA_NOT_EXACT_COUNT).
mysql-test/t/subselect2.test:
  * Bug #20792: Incorrect results from aggregate subquery
   - test suite for the bug
sql/sql_select.cc:
  * Bug #20792: Incorrect results from aggregate subquery
   - when clearing results if there are not rows found for group
     the const tables must not be reset as they are not recalculated
     for each group.
2006-07-26 19:19:30 +03:00
unknown
70d27b3503 Merge gkodinov@bk-internal.mysql.com:/home/bk/mysql-4.1-opt
into  rakia.(none):/home/kgeorge/mysql/autopush/B21019-4.1-opt


sql/sql_select.cc:
  Auto merged
mysql-test/r/select.result:
  SCCS merged
mysql-test/t/select.test:
  SCCS merged
2006-07-26 18:49:26 +03:00
unknown
048fbb845d Merge macbook.gmz:/Users/kgeorge/mysql/work/B21019-4.1-opt
into  macbook.gmz:/Users/kgeorge/mysql/work/B21019-5.0-opt


mysql-test/t/select.test:
  Auto merged
sql/sql_select.cc:
  Auto merged
mysql-test/r/select.result:
  SCCS merged
2006-07-26 17:31:34 +03:00
unknown
35945019ea BUG#21206: memory corruption when too many cursors are opened at once
Too many cursors (more than 1024) could lead to memory corruption.
This affects both, stored routines and C API cursors, and the
threshold is per-server, not per-connection.  Similarly, the
corruption could happen when the server was under heavy load
(executing more than 1024 simultaneous complex queries), and this is
the reason why this bug is fixed in 4.1, which doesn't support
cursors.

The corruption was caused by a bug in the temporary tables code, when
an attempt to create a table could lead to a write beyond allocated
space.  Note, that only internal tables were affected (the tables
created internally by the server to resolve the query), not tables
created with CREATE TEMPORARY TABLE.  Another pre-condition for the
bug is TRUE value of --temp-pool startup option, which, however, is a
default.

The cause of a bug was that random memory was overwritten in
bitmap_set_next() due to out-of-bound memory access.


mysys/my_bitmap.c:
  Local 'bitmap_size' is measured in bytes, no need to multiply it by 8.
sql/sql_select.cc:
  Clear the temp_pool_slot bit only if we have set it previously.
2006-07-26 16:23:07 +04:00
unknown
5ca1ee5eea Bug #21019: First result of SELECT COUNT(*) different than consecutive runs
When optimizing conditions like 'a = <some_val> OR a IS NULL' so that they're
 united into a single condition on the key and checked together the server must 
 check which value is the NULL value in a correct way : not only using ->is_null 
 but also check if the expression doesn't depend on any tables referenced in the 
 current statement. 
 This additional check must be performed because that optimization takes place 
 before the actual execution of the statement, so if the field was initialized 
 to NULL from a previous statement the optimization would be applied incorrectly.


mysql-test/r/select.result:
  Bug #21019: First result of SELECT COUNT(*) different than consecutive runs
   - test case
mysql-test/t/select.test:
  Bug #21019: First result of SELECT COUNT(*) different than consecutive runs
   - test case. 
     Note that ALTER TABLE is important here : it happens to
     leave the Field instance for t1.b set to NULL, witch is vital for
     demonstrating the problem fixed by this changeset.
sql/sql_select.cc:
  Bug #21019: First result of SELECT COUNT(*) different than consecutive runs
   - check whether a value is null taking into account its table dependency.
2006-07-26 13:32:28 +03:00
unknown
585b5bbc92 Fix for BUG#20954: avg(keyval) retuns 0.38 but max(keyval) returns an empty set
The problem was in that opt_sum_query() replaced MIN/MAX functions
with the corresponding constant found in a key, but due to imprecise
representation of float numbers, when evaluating the where clause,
this comparison failed.

When MIN/MAX optimization detects that all tables can be removed,
also remove all conjuncts in a where clause that refer to these
tables. As a result of this fix, these conditions are not evaluated
twice, and in the case of float number comparisons we do not discard
result rows due to imprecise float representation.

As a side-effect this fix also corrects an unnoticed problem in
bug 12882.


mysql-test/r/func_group.result:
  BUG#20954 - test result adjustment.
  Adjusted the test result of bug 12882 which was not preperly fixed.
  The current patch corrects the problem that was fully corrected by the
  patch for 12882.
  
  The problem was that opt_sum_query() indicated that the optimizer may
  remove all tables because all MIN/MAX/COUNT functions are constants,
  but this lead to an empty result instead of NULL because the WHERE
  clause was still evaluated.
  
  The current fix removes all conjuncts in the where clause that
  reference the removed tables, and thus corrects the problem.
mysql-test/r/select.result:
  BUG#20954 - added test
mysql-test/r/subselect.result:
  BUG#20954 - test result adjustment.
  
  The fix removes those conditions in a where clause that refer to
  tables optimized away by MIN/MAX optimization (opt_sum_query()).
mysql-test/t/select.test:
  BUG#20954 - added test
sql/sql_select.cc:
  Fix for BUG#20954: avg(keyval) retuns 0.38 but max(keyval) returns an empty set
  
  When MIN/MAX optimization detects that all tables can be removed,
  also remove all conjuncts in a where clause that refer to these
  tables. As a result of this fix, these conditions are not evaluated
  twice, and in the case of float number comparisons we do not discard
  result rows due to imprecise float representation.
  
  As a side-effect this fix also corrects an unnoticed problem in
  bug 12882.
2006-07-26 01:11:19 +03:00
unknown
beb6f57c41 Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.0-opt
into  moonbone.local:/work/19862-bug-5.0-opt-mysql


sql/item_func.h:
  Auto merged
sql/sql_select.cc:
  Auto merged
2006-07-26 00:37:35 +04:00
unknown
9a63adc8fd Fixed bug#19862: Sort with filesort by function evaluates function twice
When there is no index defined filesort is used to sort the result of a
query. If there is a function in the select list and the result set should be
ordered by it's value then this function will be evaluated twice. First time to
get the value of the sort key and second time to send its value to a user.
This happens because filesort when sorts a table remembers only values of its
fields but not values of functions.
All functions are affected. But taking into account that SP and UDF functions
can be both expensive and non-deterministic a temporary table should be used 
to store their results and then sort it to avoid twice SP evaluation and to 
get a correct result.

If an expression referenced in an ORDER clause contains a SP or UDF 
function, force the use of a temporary table.

A new Item_processor function called func_type_checker_processor is added
to check whether the expression contains a function of a particular type.


mysql-test/t/udf.test:
  Added test case for bug#19862: Sort with filesort by function evaluates function twice
mysql-test/t/sp.test:
  Added test case for bug#19862: Sort with filesort by function evaluates function twice
mysql-test/r/sp.result:
  Added test case for bug#19862: Sort with filesort by function evaluates function twice
mysql-test/r/udf.result:
  Added test case for bug#19862: Sort with filesort by function evaluates function twice
sql/sql_select.cc:
  Fixed bug#19862: Sort with filesort by function evaluates function twice
  If an expression referenced in an ORDER clause contains a SP or UDF
  function, force the use of a temporary table.
sql/item_func.h:
  Fixed bug#19862: Sort with filesort by function evaluates function twice
  A new Item_processor function called func_type_checker_processor is added
  to check whether the expression contains a function of a particular type.
sql/item.h:
  Fixed bug#19862: Sort with filesort by function evaluates function twice
  A new Item_processor function called func_type_checker_processor is added
  to check whether the expression contains a function of a particular type.
sql/item_func.cc:
  Fixed bug#19862: Sort with filesort by function evaluates function twice
  A new Item_processor function called func_type_checker_processor is added
  to check whether the expression contains a function of a particular type.
2006-07-26 00:31:29 +04:00