Commit graph

1532 commits

Author SHA1 Message Date
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
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
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
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
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
unknown
bc6fd749b7 Merge gkodinov@bk-internal.mysql.com:/home/bk/mysql-5.0-opt
into  rakia.(none):/home/kgeorge/mysql/autopush/B16712-5.0-opt


sql/item_sum.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
2006-07-25 11:56:22 +03:00
unknown
4e7121c07b Bug#16712: group_concat returns odd srting insead of intended result
when calculating GROUP_CONCAT all blob fields are transformed
  to varchar when making the temp table.
  However a varchar has at max 2 bytes for length. 
  This fix makes the conversion only for blobs whose max length 
  is below that limit. 
  Otherwise blob field is created by make_string_field() call.


mysql-test/r/func_gconcat.result:
  Bug#16712: group_concat returns odd srting insead of intended result
    * testsuite for the bug
mysql-test/t/func_gconcat.test:
  Bug#16712: group_concat returns odd srting insead of intended result
    * testsuite for the bug
sql/item_sum.cc:
  Bug#16712: group_concat returns odd srting insead of intended result
    * force blob->varchar conversion for small enough blobs only
sql/sql_select.cc:
  Bug#16712: group_concat returns odd srting insead of intended result
    * force blob->varchar conversion for small enough blobs only
2006-07-25 11:45:10 +03:00
unknown
8a596b0237 Merge office:mysql/autopush/B20466-5.0-opt
into  macbook.mshome.net:/Users/kgeorge/mysql/work/B20466-5.0-opt


sql/sql_select.cc:
  Auto merged
2006-07-22 15:18:30 +03:00
unknown
7118c2523c Bug #20466: a view is mixing data when there's a trigger on the table
When making a place to store field values at the start of each group
  the real item (not the reference) must be used when deciding which column
  to copy.


mysql-test/r/group_by.result:
  Bug #20466: a view is mixing data when there's a trigger on the table
   - test suite for the bug
mysql-test/t/group_by.test:
  Bug #20466: a view is mixing data when there's a trigger on the table
   - test suite for the bug
sql/sql_select.cc:
  Bug #20466: a view is mixing data when there's a trigger on the table
   - deal correctly with references
2006-07-21 20:44:35 +03:00
unknown
8024aabb76 Bug #20868: Client connection is broken on SQL query error
An aggregate function reference was resolved incorrectly and
caused a crash in count_field_types.
 Must use real_item() to get to the real Item instance through
the reference


mysql-test/r/func_group.result:
  Bug #20868: Client connection is broken on SQL query error
   * test case for the bug
mysql-test/t/func_group.test:
  Bug #20868: Client connection is broken on SQL query error
   * test case for the bug
sql/sql_select.cc:
  Bug #20868: Client connection is broken on SQL query error
   * correctly resolve aggregate function references.
2006-07-21 17:59:52 +03:00
unknown
203d46bb38 Fixed bug #20519.
The bug was due to a loss happened during a refactoring made
on May 30 2005 that modified the function JOIN::reinit.
As a result of it for any subquery the value of offset_limit_cnt
was not restored for the following executions. Yet the first 
execution of the subquery made it equal to 0.
The fix restores this value in the function JOIN::reinit.  


mysql-test/r/subselect.result:
  Added a test case fir bug #20519.
mysql-test/t/subselect.test:
  Added a test case fir bug #20519.
2006-07-14 19:28:58 -07:00
unknown
4f580b3e43 Merge macbook.gmz:/Users/kgeorge/mysql/work/B17212-4.1-opt
into  macbook.gmz:/Users/kgeorge/mysql/work/B17212-5.0-opt


mysql-test/r/innodb_mysql.result:
  Merge 4.1->5.0 for bug #17212
mysql-test/t/innodb_mysql.test:
  Merge 4.1->5.0 for bug #17212
sql/sql_select.cc:
  Merge 4.1->5.0 for bug #17212
2006-07-14 11:20:52 +03:00
unknown
1e44259440 Fixed bug #19714.
DESCRIBE returned the type BIGINT for a column of a view if the column
was specified by an expression over values of the type INT.
    
E.g. for the view defined as follows:
  CREATE VIEW v1 SELECT COALESCE(f1,f2) FROM t1
DESCRIBE returned type BIGINT for the only column of the view if f1,f2 are
columns of the INT type.
At the same time DESCRIBE returned type INT for the only column of the table
defined by the statement:
  CREATE TABLE t2 SELECT COALESCE(f1,f2) FROM t1.
    
This inconsistency was removed by the patch.

Now the code chooses between INT/BIGINT depending on the
precision of the aggregated column type.
 
Thus both DESCRIBE commands above returns type INT for v1 and t2.
 


mysql-test/r/analyse.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/bigint.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/create.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/olap.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/ps_2myisam.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/ps_3innodb.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/ps_4heap.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/ps_5merge.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/ps_6bdb.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/ps_7ndb.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/sp.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/subselect.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/type_ranges.result:
  Adjusted the results after having fixed bug #19714.
mysql-test/r/view.result:
  Added a test case for bug #19714.
mysql-test/t/view.test:
  Added a test case for bug #19714.
2006-07-13 20:48:26 -07:00
unknown
80eae1a3c9 Merge moonbone.local:/work/16302-bug-4.1-opt-mysql
into  moonbone.local:/work/tmp_merge-5.0-opt-mysql


sql/item_subselect.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_select.cc:
  Auto merged
mysql-test/r/subselect.result:
  Manual merge
mysql-test/t/subselect.test:
  Manual merge
2006-07-13 18:18:20 +04:00
unknown
805c33a5e1 Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.0
into  moonbone.local:/work/tmp_merge-5.0-opt-mysql


mysql-test/r/rpl_insert_id.result:
  Auto merged
mysql-test/t/rpl_insert_id.test:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/item_strfunc.h:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
2006-07-13 18:16:16 +04:00
unknown
4144543006 Bug #17212 results not sorted correctly by ORDER BY when using index
* don't use join cache when the incoming data set is already ordered
    for ORDER BY
    This choice must be made because join cache will effectively
    reverse the join order and the results will be sorted by the index
    of the table that uses join cache.


mysql-test/r/innodb_mysql.result:
  Bug #17212 results not sorted correctly by ORDER BY when using index
    * Test suite for the bug
mysql-test/t/innodb_mysql.test:
  Bug #17212 results not sorted correctly by ORDER BY when using index
    * Test suite for the bug
sql/sql_select.cc:
  Bug #17212 results not sorted correctly by ORDER BY when using index
    * don't use join cache when the incoming data set is already sorted
2006-07-12 10:57:38 +03:00
unknown
03dbc2190d Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-4.1-opt
into  moonbone.local:/work/18503-bug-4.1-mysql


sql/sql_select.cc:
  Auto merged
2006-07-12 02:52:29 +04:00
unknown
d2bbf288a9 Fixed bug#18503: Queries with a quantified subquery returning empty set
may return a wrong result.

An Item_sum_hybrid object has the was_values flag which indicates whether any
values were added to the sum function. By default it is set to true and reset
to false on any no_rows_in_result() call. This method is called only in
return_zero_rows() function. An ALL/ANY subquery can be optimized by MIN/MAX
optimization. The was_values flag is used to indicate whether the subquery
has returned at least one row. This bug occurs because return_zero_rows() is
called only when we know that the select will return zero rows before
starting any scans but often such information is not known.
In the reported case the return_zero_rows() function is not called and
the was_values flag is not reset to false and yet the subquery return no rows
Item_func_not_all and Item_func_nop_all functions return a wrong
comparison result.

The end_send_group() function now calls no_rows_in_result() for each item
in the fields_list if there is no rows were found for the (sub)query.


mysql-test/t/subselect.test:
  Added test case for bug#18503: Queries with a quantified subquery returning empty set may return a wrong result.
mysql-test/r/subselect.result:
  Added test case for bug#18503: Queries with a quantified subquery returning empty set may return a wrong result.
sql/sql_select.cc:
  Fixed bug#18503: Queries with a quantified subquery returning empty set may return a wrong result.
  
  The end_send_group() function now calls no_rows_in_result() for each item
  in the fields_list if there is no matching rows were found.
2006-07-12 01:52:18 +04:00
unknown
a8a6361b49 Merge macbook.gmz:/Users/kgeorge/mysql/work/B14553-4.1-opt
into  macbook.gmz:/Users/kgeorge/mysql/work/B14553-5.0-opt


mysql-test/r/odbc.result:
  Auto merged
sql/sql_select.cc:
  Auto merged
mysql-test/r/rpl_insert_id.result:
  merge the test at the end of 4.1 test
mysql-test/t/rpl_insert_id.test:
  merge the test at the end of 4.1 test
sql/sql_class.cc:
  merged
sql/sql_class.h:
  merged
2006-07-10 16:44:05 +03:00
unknown
ca1e4aabfa Merge rakia:mysql/4.1/B14553
into  macbook.gmz:/Users/kgeorge/mysql/work/B14553-4.1-opt


sql/sql_class.cc:
  SCCS merged
sql/sql_select.cc:
  SCCS merged
2006-07-10 16:27:04 +03:00
unknown
0806d9a86d BUG#14553: NULL in WHERE resets LAST_INSERT_ID
To make MySQL compatible with some ODBC applications, you can find
the AUTO_INCREMENT value for the last inserted row with the following query:
 SELECT * FROM tbl_name WHERE auto_col IS NULL.
This is done with a special code that replaces 'auto_col IS NULL' with
'auto_col = LAST_INSERT_ID'.
However this also resets the LAST_INSERT_ID to 0 as it uses it for a flag
so as to ensure that only the first SELECT ... WHERE auto_col IS NULL
after an INSERT has this special behaviour.
In order to avoid resetting the LAST_INSERT_ID a special flag is introduced
in the THD class. This flag is used to restrict the second and subsequent
SELECTs instead of LAST_INSERT_ID.


mysql-test/r/odbc.result:
  test suite for the bug
mysql-test/r/rpl_insert_id.result:
  test for the fix in replication
mysql-test/t/odbc.test:
  test suite for the bug
mysql-test/t/rpl_insert_id.test:
  test for the fix in replication
sql/sql_class.cc:
  initialize the flag
sql/sql_class.h:
  flag's declaration and set code when setting the last_insert_id
sql/sql_select.cc:
  the special flag is used instead of last_insert_id
2006-07-10 16:27:03 +03:00
unknown
013cbc3964 Merge chilla.local:/home/mydev/mysql-5.0
into  chilla.local:/home/mydev/mysql-5.0-bug16218


sql/field.cc:
  Auto merged
sql/field.h:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_trigger.cc:
  Auto merged
sql/table.cc:
  Auto merged
2006-07-06 19:36:07 +02:00
unknown
6ea7aafc0a Merge moonbone.local:/home/evgen/bk-trees/mysql-5.0-opt
into moonbone.local:/work/merge-5.0


sql/sql_select.cc:
  Auto merged
strings/ctype-mb.c:
  Auto merged
2006-06-30 02:02:20 +04:00
unknown
8f42d836dc 4.1->5.0 merge for bug #16458
mysql-test/r/distinct.result:
  4.1->5.0 merge for bug #16458
   * 5.0 is better in detecting duplicate columns
sql/sql_select.cc:
  4.1->5.0 merge for bug #16458
   * Should not do the optimization if using index for group by
   * chnaged structures in 5.0
2006-06-28 15:53:54 +03:00
unknown
90cb4c03fd Bug#17203: "sql_no_cache sql_cache" in views created from prepared statement
The problem was that we restored SQL_CACHE, SQL_NO_CACHE flags in SELECT
statement from internal structures based on value set later at runtime, not
the original value set by the user.

The solution is to remember that original value.


mysql-test/r/auto_increment.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/func_compress.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/func_math.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/func_system.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/func_time.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/information_schema.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/query_cache.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/rpl_get_lock.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/rpl_master_pos_wait.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/show_check.result:
  Add result for bug#17203.
mysql-test/r/subselect.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/type_blob.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/variables.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/r/view.result:
  Update result to not report SQL_NO_CACHE if it wasn't there at first place.
mysql-test/t/show_check.test:
  Add test case for bug#17203.
sql/sql_lex.cc:
  Reset SELECT_LEX::sql_cache together with SELECT_LEX::options.
sql/sql_lex.h:
  Add SELECT_LEX::sql_cache field to store original user setting.
sql/sql_select.cc:
  Output SQL_CACHE and SQL_NO_CACHE depending on stored original user setting.
sql/sql_yacc.yy:
  Make effect of SQL_CACHE and SQL_NO_CACHE mutually exclusive.  Ignore
  SQL_CACHE if SQL_NO_CACHE was used.  Remember what was set by the user.
  Reset SELECT_LEX::sql_cache together with SELECT_LEX::options.
2006-06-27 21:28:32 +04:00
unknown
6a4ec2e99d Merge mysql.com:/home/kgeorge/mysql/4.1/B16458
into  mysql.com:/home/kgeorge/mysql/5.0/B16458


sql/sql_select.cc:
  Auto merged
mysql-test/r/distinct.result:
  merge 4.1->5.0
mysql-test/t/distinct.test:
  merge 4.1->5.0
2006-06-27 17:59:49 +03:00
unknown
4b36c1d8ff Bug #16458: Simple SELECT FOR UPDATE causes "Result Set not updatable" error
'SELECT DISTINCT a,b FROM t1' should not use temp table if there is unique 
index (or primary key) on a.
There are a number of other similar cases that can be calculated without the
use of a temp table : multi-part unique indexes, primary keys or using GROUP BY 
instead of DISTINCT.
When a GROUP BY/DISTINCT clause contains all key parts of a unique
index, then it is guaranteed that the fields of the clause will be
unique, therefore we can optimize away GROUP BY/DISTINCT altogether.
This optimization has two effects:
* there is no need to create a temporary table to compute the
   GROUP/DISTINCT operation (or the temporary table will be smaller if only GROUP 
   is removed and DISTINCT stays or if DISTINCT is removed and GROUP BY stays)
* this causes the statement in effect to become updatable in Connector/Java
because the result set columns will be direct reference to the primary key of 
the table (instead to the temporary table that it currently references). 

Implemented a check that will optimize away GROUP BY/DISTINCT for queries like 
the above.
Currently it will work only for single non-constant table in the FROM clause.


mysql-test/r/distinct.result:
  Bug #16458: Simple SELECT FOR UPDATE causes "Result Set not updatable" error
    - test case
mysql-test/t/distinct.test:
  Bug #16458: Simple SELECT FOR UPDATE causes "Result Set not updatable" error
    - test case
sql/sql_select.cc:
  Bug #16458: Simple SELECT FOR UPDATE causes "Result Set not updatable" error
    - disable GROUP BY if contains the fields of a unique index.
2006-06-27 17:40:19 +03:00
unknown
ab5ebc0fb7 Bug#16218 - Crash on insert delayed
Bug#17294 - INSERT DELAYED puting an \n before data
Bug#16611 - INSERT DELAYED corrupts data
Bug#13707 - Server crash with INSERT DELAYED on MyISAM table
Combined as Bug#16218.

INSERT DELAYED crashed in 5.0 on a table with a varchar that 
could be NULL and was created pre-5.0 (Bugs 16218 and 13707).
INSERT DELAYED corrupted data in 5.0 on a table with varchar 
fields that was created pre-5.0 (Bugs 17294 and 16611).

In case of INSERT DELAYED the open table is copied from the
delayed insert thread to be able to create a record for the 
queue. When copying the fields, a method was used that did 
convert old varchar to new varchar fields and did not set up 
some pointers into the record buffer of the table.

The field conversion was guilty for the misinterpretation of 
the record contents by the delayed insert thread. The wrong
pointer setup was guilty for the crashes.

For Bug 13707 (Server crash with INSERT DELAYED on MyISAM table)
I fixed the above mentioned method to set up one of the pointers.
For Bug 16218 I set up the other pointers too.

But when looking at the corruptions I got aware that converting
the field type was totally wrong for INSERT DELAYED. The copied
table is used to create a record that is to be sent to the
delayed insert thread. Of course it can interpret the record
correctly only if all field types are the same in both table
objects.

So I revoked the fix for Bug 13707 and changed the new_field() 
method so that it can suppress conversions.

No test case as this is a migration problem. One needs to
create a table with 4.x and use it with 5.x. I added two
test scripts to the bug report.


sql/field.cc:
  Bug#16218 - Crash on insert delayed
  Bug#17294 - INSERT DELAYED puting an \n before data
  Bug#16611 - INSERT DELAYED corrupts data
  Bug#13707 - Server crash with INSERT DELAYED on MyISAM table
  Combined as Bug#16218.
  
  Added parameter 'keep_type' to Field::new_field().
  
  Undid the change from Bug 13707 (Server crash with INSERT 
  DELAYED on MyISAM table).
  I solved all four bugs in sql/sql_insert.cc by making exact
  duplicates of the fields. The new_field() method converts
  certain field types, which is wrong for INSERT DELAYED.
sql/field.h:
  Bug#13707 - Server crash with INSERT DELAYED on MyISAM table
  Combined as Bug#16218.
  
  Added parameter 'keep_type' to Field::new_field().
sql/sql_insert.cc:
  Bug#16218 - Crash on insert delayed
  Bug#17294 - INSERT DELAYED puting an \n before data
  Bug#16611 - INSERT DELAYED corrupts data
  Bug#13707 - Server crash with INSERT DELAYED on MyISAM table
  Combined as Bug#16218.
  
  Added comments. Made small style fixes.
  Used the new parameter 'keep_type' of Field::new_field()
  to avoid field type conversion. The table copy must have
  exactly the same types of fields as the original table.
  Otherwise the record contents created by the foreground 
  thread could be misinterpreted by the delayed insert thread.
sql/sql_select.cc:
  Bug#16218 - Crash on insert delayed
  Bug#17294 - INSERT DELAYED puting an \n before data
  Bug#16611 - INSERT DELAYED corrupts data
  Bug#13707 - Server crash with INSERT DELAYED on MyISAM table
  Combined as Bug#16218.
  
  Added parameter 'keep_type' to Field::new_field().
  
  Undid the change from Bug 13707 (Server crash with INSERT 
  DELAYED on MyISAM table).
  I solved all four bugs in sql/sql_insert.cc by making exact
  duplicates of the fields. The new_field() method converts
  certain field types, which is wrong for INSERT DELAYED.
sql/sql_trigger.cc:
  Bug#16218 - Crash on insert delayed
  Bug#17294 - INSERT DELAYED puting an \n before data
  Bug#16611 - INSERT DELAYED corrupts data
  Bug#13707 - Server crash with INSERT DELAYED on MyISAM table
  Combined as Bug#16218.
  
  Added parameter 'keep_type' to Field::new_field().
  
  Undid the change from Bug 13707 (Server crash with INSERT 
  DELAYED on MyISAM table).
  I solved all four bugs in sql/sql_insert.cc by making exact
  duplicates of the fields. The new_field() method converts
  certain field types, which is wrong for INSERT DELAYED.
sql/table.cc:
  Bug#16218 - Crash on insert delayed
  Bug#17294 - INSERT DELAYED puting an \n before data
  Bug#16611 - INSERT DELAYED corrupts data
  Bug#13707 - Server crash with INSERT DELAYED on MyISAM table
  Combined as Bug#16218.
  
  Added parameter 'keep_type' to Field::new_field().
  
  Undid the change from Bug 13707 (Server crash with INSERT 
  DELAYED on MyISAM table).
  I solved all four bugs in sql/sql_insert.cc by making exact
  duplicates of the fields. The new_field() method converts
  certain field types, which is wrong for INSERT DELAYED.
2006-06-26 20:57:18 +02:00
unknown
406a7ba992 field.cc, field.h:
Additional fix for #16377 for bigendian platforms
sql_select.cc, select.result, select.test:
  After merge fix


mysql-test/t/select.test:
  After merge fix
mysql-test/r/select.result:
  After merge fix
sql/sql_select.cc:
  After merge fix
sql/field.h:
  Additional fix for #16377 for bigendian platforms
sql/field.cc:
  Additional fix for #16377 for bigendian platforms
2006-06-21 01:14:53 +04:00
unknown
4d3803f0ed Manually merged
mysql-test/r/insert_select.result:
  Auto merged
mysql-test/t/insert_select.test:
  Auto merged
2006-06-20 22:22:14 +04:00
unknown
124cb126fa * Bug #9676: INSERT INTO x SELECT .. FROM x LIMIT 1; slows down with big
tables
Currently in INSERT ... SELECT ... LIMIT ... the compiler uses a 
temporary table to store the results of SELECT ... LIMIT .. and then
uses that table as a source for INSERT. The problem is that in some cases
it actually skips the LIMIT clause in doing that and materializes the 
whole SELECT result set regardless of the LIMIT.
This fix is limiting the process of filling up the temp table with only 
that much rows that will be actually used by propagating the LIMIT value.


mysql-test/r/insert_select.result:
  * Bug #9676: INSERT INTO x SELECT .. FROM x LIMIT 1; slows down with big
                tables
  - a test demonstrating the code path
mysql-test/t/insert_select.test:
  * Bug #9676: INSERT INTO x SELECT .. FROM x LIMIT 1; slows down with big
                tables
  - a test demonstrating the code path
sql/sql_select.cc:
  * Bug #9676: INSERT INTO x SELECT .. FROM x LIMIT 1; slows down with big
                tables
  - pass through the real LIMIT number if the temp table is created for
    buffering results.
  - set the counter for all the cases when the temp table is not used for
    grouping
2006-06-19 13:22:42 +03:00
unknown
5fd2a35032 Merge rurik.mysql.com:/home/igor/mysql-4.1-opt
into  rurik.mysql.com:/home/igor/mysql-5.0-opt


sql/opt_sum.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_select.h:
  Auto merged
mysql-test/r/func_group.result:
  SCCS merged
mysql-test/t/func_group.test:
  SCCS merged
2006-06-02 17:06:10 -07:00
unknown
e3e0658779 Fixed bug #18206.
The bug report revealed two problems related to min/max optimization:
1. If the length of a constant key used in a SARGable condition for
for the MIN/MAX fields is greater than the length of the field an 
unwanted warning on key truncation is issued;
2. If MIN/MAX optimization is applied to a partial index, like INDEX(b(4))
than can lead to returning a wrong result set.


mysql-test/r/func_group.result:
  Added test cases for bug #18206.
mysql-test/t/func_group.test:
  Added test cases for bug #18206.
sql/opt_sum.cc:
  Fixed bug #18206.
  Suppressed the warning about data truncation when store_val_in_field
  was used to store keys for the field used in MIN/MAX optimization.
  Blocked MIN/MAX optimization for partial keys, such as in INDEX(b(4)).
sql/sql_select.cc:
  Fixed bug #18206.
  Added a parameter for the function store_val_in_field allowing to
  control setting warnings about data truncation in the function.
sql/sql_select.h:
  Fixed bug #18206.
  Added a parameter for the function store_val_in_field allowing to
  control setting warnings about data truncation in the function.
2006-06-02 14:14:57 -07:00
unknown
6386c5dfc0 Merge mysql.com:/home/kgeorge/mysql/5.0/clean
into  mysql.com:/home/kgeorge/mysql/5.0/B18681


sql/mysql_priv.h:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
2006-05-26 11:51:30 +03:00
unknown
d7743c41c6 BUG#18681: View privileges are broken
The check for view security was lacking several points :
1. Check with the right set of permissions : for each table ref that
participates in a view there were the right credentials to use in it's
security_ctx member, but these weren't used for checking the credentials.
This makes hard enforcing the SQL SECURITY DEFINER|INVOKER property
consistently.
2. Because of the above the security checking for views was just ruled out
in explicit ways in several places.
3. The security was checked only for the columns of the tables that are
brought into the query from a view. So if there is no column reference
outside of the view definition it was not detecting the lack of access to
the tables in the view in SQL SECURITY INVOKER mode.

The fix below tries to fix the above 3 points.


mysql-test/r/grant.result:
  removed nondeterminism (unspecified order) in some test output
mysql-test/r/view_grant.result:
  Somewhat extended test case for the bug and similar queries.
mysql-test/t/grant.test:
  removed nondeterminism (unspecified order) in some test output
mysql-test/t/view_grant.test:
  Somewhat extended test case for the bug and similar queries.
sql/mysql_priv.h:
  A wrapper for setup_tables that also checks access to the tables
sql/sql_acl.cc:
  removed artificial security check stop and used the table ref's credentials.
sql/sql_base.cc:
  a wrapper for setup_tables to check access to the tables
sql/sql_delete.cc:
  wrapper called.
sql/sql_insert.cc:
  wrapper called
sql/sql_load.cc:
  wrapper called
sql/sql_parse.cc:
  wrapper called and artificial check stop removed
sql/sql_select.cc:
  wrapper called
sql/sql_update.cc:
  wrapper called
sql/table.cc:
  Mask table access to the view error as well.
2006-05-26 11:47:53 +03:00
unknown
12a0f4ff14 Remove dflt_field from field structure as this was only needed when createing temporary table and I found another soultion that doesn't increase the size of the field structure for all table instances. (Better fix for bug #19089)
Fixed compiler warnings
Fixed valgrind warning in Item_date_add_intervall::eq. (Recoding of bugfix #19490)


sql/field.cc:
  remove dflt_field from field structure (not needed)
  Simple cleanup of code that been copied elsewhere
sql/field.h:
  remove dflt_field from field structure (not needed)
sql/item.h:
  Removed compiler warnings
sql/item_timefunc.cc:
  Fixed Item_date_add_intervall::eq
  The problem was that when we call 'eq' 'this' is not fixed, which means we can't call const_item() or a value function.
  I fixed this so that we check eq for all arguments and that the sign and type are identical.
  (The original code gave a 'accessing uninitialized data' in valgrind.
sql/mysql_priv.h:
  Added default fields to create_tmp_field
sql/sql_insert.cc:
  New default_field parameter to create_tmp_field()
sql/sql_select.cc:
  New default_field parameter to create_tmp_field()
  Use this in create_tmp_table() to set right default value for a field
2006-05-24 11:56:59 +03:00