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Objects of the classes Item_func_is_not_null_test and Item_func_trig_cond
must be transparent for the method Item::split_sum_func2 as these classes
are pure helpers. It means that the method Item::split_sum_func2 should
look at those objects as at pure wrappers.
mysql-test/r/subselect3.result:
Added a test case for bug #24420.
mysql-test/t/subselect3.test:
Added a test case for bug #24420.
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into olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug24653
sql/item.h:
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into olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug24653
sql/item.cc:
Auto merged
sql/item.h:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/sql_select.cc:
Auto merged
mysql-test/r/subselect.result:
Manual merge
mysql-test/t/subselect.test:
Manual merge
sql/filesort.cc:
Manual merge
sql/item_cmpfunc.h:
Manual merge
sql/item_subselect.cc:
Manual merge
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The bug report has demonstrated the following two problems.
1. If an ORDER/GROUP BY list includes a constant expression being
optimized away and, at the same time, containing single-row
subselects that return more that one row, no error is reported.
Strictly speaking the standard allows to ignore error in this case.
Yet, now a corresponding fatal error is reported in this case.
2. If a query requires sorting by expressions containing single-row
subselects that, however, return more than one row, then the execution
of the query may cause a server crash.
To fix this some code has been added that blocks execution of a subselect
item in case of a fatal error in the method Item_subselect::exec.
mysql-test/r/subselect.result:
Added a test cases for bug #24653.
mysql-test/t/subselect.test:
Added a test cases for bug #24653.
sql/filesort.cc:
Fixed bug #24653.
Added a check for fatal error after reading the next row from the table
in the function find_all_keys.
sql/item.cc:
Fixed bug #24653.
Down-ported calculation of the attribute with_subselect of for Item objects.
sql/item.h:
Fixed bug #24653.
Down-ported calculation of the attribute with_subselect of for Item objects.
sql/item_cmpfunc.cc:
Fixed bug #24653.
Down-ported calculation of the attribute with_subselect of for Item objects.
sql/item_cmpfunc.h:
Fixed bug #24653.
Down-ported calculation of the attribute with_subselect of for Item objects.
sql/item_func.cc:
Fixed bug #24653.
Down-ported calculation of the attribute with_subselect of for Item objects.
sql/item_subselect.cc:
Fixed bug #24653.
Added a check for fatal error in the method Item_subselect::exec
to block evaluation of subselects in erroneous situations.
Down-ported calculation of the attribute with_subselect of for Item objects.
sql/sql_select.cc:
Fixed bug #24653.
Added a check to verify that any constant expression used
in ORDER BY and/or GROUP BY lists which is optimized away
does not contain subselects returning more than one row.
If it does a fatal error is reported.
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into mysql.com:/home/gluh/MySQL/Merge/5.0
sql/item.h:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_update.cc:
Auto merged
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into mysql.com:/home/psergey/mysql-5.0-bug8804-r12
sql/mysqld.cc:
Auto merged
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Fixed typo problem that surfaced after the merge
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identical pushed_cond_guards arrays. Allocate only one always.
mysql-test/r/subselect.result:
BUG#24127: merge
mysql-test/t/subselect3.test:
BUG#24127: merge
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into mysql.com:/home/psergey/mysql-5.0-bug8804-r12
sql/item_cmpfunc.cc:
Auto merged
sql/item_cmpfunc.h:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_select.cc:
Auto merged
mysql-test/r/subselect.result:
Manual Merge
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are NULLs:
- Make the code produce correct result: use an array of triggers to turn on/off equalities for each
compared column. Also turn on/off optimizations based on those equalities.
- Make EXPLAIN output show "Full scan on NULL key" for tables for which we switch between
ref/unique_subquery/index_subquery and ALL access.
- index_subquery engine now has HAVING clause when it is needed, and it is
displayed in EXPLAIN EXTENDED
- Fix incorrect presense of "Using index" for index/unique-based subqueries (BUG#22930)
// bk trigger note: this commit refers to BUG#24127
mysql-test/r/ndb_subquery.result:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
- Updated test results (checked)
mysql-test/r/subselect.result:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
- Updated test results (checked)
mysql-test/r/subselect2.result:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
- Updated test results (checked)
mysql-test/r/subselect3.result:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
- Testcases
mysql-test/t/subselect3.test:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
- Testcases
sql/item_cmpfunc.cc:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
- For row-based IN subqueries, use one flag per each column. Set the flags appropriately before
running the subquery.
sql/item_cmpfunc.h:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
- Added Item_func_trig_cond::get_triv_var()
sql/item_subselect.cc:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
- Item_subselect::exec() and subselect_*_engine::exec() don't have parameter
anymore - now Item_subselect owns the pushed down predicates guard flags.
- A correct set of conditional predicates is now pushed into row-based IN
subquery.
- select_indexsubquery_engine now has "HAVING clause" (needed for correct query
results), and it is shown in EXPLAIN EXTENDED
sql/item_subselect.h:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
- Item_subselect::exec() and subselect_*_engine::exec() don't have parameter
anymore - now Item_subselect owns the pushed down predicates guard flags.
- A correct set of conditional predicates is now pushed into row-based IN
subquery.
- select_indexsubquery_engine now has "HAVING clause" (needed for correct query
results), and it is shown in EXPLAIN EXTENDED
sql/mysql_priv.h:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
- Added "in_having_cond" special Item name
sql/mysqld.cc:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
- Added "in_having_cond" special Item name
sql/sql_lex.h:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
sql/sql_select.cc:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
- Make "ref" analyzer be able to work with conditional equalities
- Fix subquery optimization code to match the changes in what kinds of
conditions are pushed down into subqueries
- Fix wrong EXPLAIN output in some queries with subquery (BUG#22390)
sql/sql_select.h:
BUG#24127: wrong result for (null,not-null) IN (SELECT a,b ...)
- Make "ref" analyzer be able to work with conditional equalities
- Fix wrong EXPLAIN output in some queries with subquery (BUG#22390)
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When transforming "oe IN (SELECT ie ...)" wrap the pushed-down predicates
iff "oe can be null", not "ie can be null".
The fix doesn't cover row-based subqueries, those will be fixed in #24127.
mysql-test/r/subselect.result:
BUG#24085: Wrong result for NULL IN (SELECT not_null_val FROM ...)
Update the test results (checked)
mysql-test/r/subselect3.result:
BUG#24085: Wrong result for NULL IN (SELECT not_null_val FROM ...)
- Testcase
mysql-test/t/subselect3.test:
BUG#24085: Wrong result for NULL IN (SELECT not_null_val FROM ...)
- Testcase
sql/item_subselect.cc:
BUG#24085: Wrong result for NULL IN (SELECT not_null_val FROM ...)
When transforming "oe IN (SELECT ie ...)" we should make special
provisions (wrap the pushed predicates) if we can encounter
NULL IN (SELECT ...), i.e. when oe->maybe_null. The code was checking
for ie->maybe_null instead, fixed it for single value based subqueries.
Row-based subqueries (e.g. (a,b) IN (SELECT c,d ...)) are not fixed
because they won't produce correct results for several other reasons
(filed as #24085)
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into mysql.com:/home/gluh/MySQL/Merge/5.0-opt
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into olga.mysql.com:/home/igor/mysql-5.0-opt
sql/item_func.cc:
Auto merged
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into olga.mysql.com:/home/igor/mysql-5.0-opt
mysql-test/r/fulltext_left_join.result:
Auto merged
mysql-test/t/fulltext_left_join.test:
Auto merged
sql/item_func.cc:
Auto merged
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The bug is actually a duplicate of the bug 14708.
Down-ported the fix for 14708 from 5.0.
Merged the test case for bug 14708 from 5.0.
mysql-test/r/fulltext_left_join.result:
Added a test case for bug #25637 (duplicate .of bug 14708).
Merged the test case for bug 14708 from 5.0.
mysql-test/t/fulltext_left_join.test:
Added a test case for bug #25637 (duplicate of bug 14708).
Merged the test case for bug 14708 from 5.0.
sql/item_func.cc:
Fixed bug #25637: LEFT JOIN with BOOLEAN FULLTEXT loses left table matches.
The bug is actually a duplicate of the bug 14708.
Down-ported the fix for 14708 from 5.0.
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into mysql.com:/home/gluh/MySQL/Merge/5.0-opt
mysql-test/r/func_in.result:
Auto merged
mysql-test/r/range.result:
Auto merged
mysql-test/r/sp-code.result:
Auto merged
mysql-test/t/func_in.test:
Auto merged
mysql-test/t/range.test:
Auto merged
mysql-test/t/trigger.test:
Auto merged
mysql-test/t/view.test:
Auto merged
sql/item.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_prepare.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_table.cc:
Auto merged
mysql-test/r/select.result:
manual merge
mysql-test/r/view.result:
manual merge
mysql-test/t/select.test:
manual merge
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Code cleanup after fix for bug#23417.
sql/sql_select.cc:
Code cleanup after fix for bug#23417.
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Post fix for bug#25123.
sql/sql_prepare.cc:
Post fix for bug#25123.
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When inserting into a join-based view the update fields from the ON DUPLICATE
KEY UPDATE wasn't checked to be from the table being inserted into and were
silently ignored.
The new check_view_single_update() function is added to check that
insert/update fields are being from the same single table of the view.
sql/sql_insert.cc:
Bug#25123: ON DUPLICATE KEY clause allows fields not from the insert table.
The new check_view_single_update() function is added to check that
insert/update fields are being from the same single table of the view.
mysql-test/r/insert.result:
Added a test case for bug#25123: ON DUPLICATE KEY clause allows fields not from the insert table.
mysql-test/t/insert.test:
Added a test case for bug#25123: ON DUPLICATE KEY clause allows fields not from the insert table.
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into olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug25580
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into moonbone.local:/work/25172-bug-5.0-opt-mysql
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After fix for bug#21798 JOIN stores the pointer to the buffer for sorting
fields. It is used while sorting for grouping and for ordering. If ORDER BY
clause has more elements then the GROUP BY clause then a memory overrun occurs.
Now the length of the ORDER BY list is always passed to the
make_unireg_sortorder() function and it allocates buffer big enough to be
used for bigger list.
sql/sql_delete.cc:
Bug#25172: Not checked buffer size leads to a server crash.
Length parameter is initialized to 0 for the make_unireg_sortorder() function.
sql/sql_select.cc:
Bug#25172: Not checked buffer size leads to a server crash.
Now the length of the ORDER BY list is always passed to the
make_unireg_sortorder() function and it allocates buffer big enough to be
used for bigger list.
sql/sql_table.cc:
Bug#25172: Not checked buffer size leads to a server crash.
Length parameter is initialized to 0 for the make_unireg_sortorder() function.
sql/sql_update.cc:
Bug#25172: Not checked buffer size leads to a server crash.
Length parameter is initialized to 0 for the make_unireg_sortorder() function.
mysql-test/r/select.result:
Added a test case for bug#25172: Not checked buffer size leads to a server crash.
mysql-test/t/select.test:
Added a test case for bug#25172: Not checked buffer size leads to a server crash.
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into olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug25580
mysql-test/r/subselect.result:
Auto merged
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UNION over correlated and uncorrelated SELECTS.
In such subqueries each uncorrelated SELECT should be considered as
uncacheable. Otherwise join_free is called for it and in many cases
it causes some problems.
mysql-test/r/subselect.result:
Added a test case for bug #25219.
mysql-test/t/subselect.test:
Added a test case for bug #25219.
sql/mysql_priv.h:
Fixed bug #25219: crash for a query that contains an EXIST subquery with
UNION over correlated and uncorrelated SELECTS.
In such subqueries each uncorrelated SELECT should be considered as
uncacheable. Otherwise join_free is called for it and in many cases
it causes some problems.
Added a new flag UNCACHEABLE_UNITED for such SELECTs.
sql/sql_lex.cc:
Fixed bug #25219: crash for a query that contains an EXIST subquery with
UNION over correlated and uncorrelated SELECTS.
In such subqueries each uncorrelated SELECT should be considered as
uncacheable. Otherwise join_free is called for it and in many cases
it causes some problems.
Added a new flag UNCACHEABLE_UNITED for such SELECTs.
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into rakia.gmz:/home/kgeorge/mysql/autopush/B25382-5.0-opt
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crashes server
Check for null value is reliable only after calling some of the
val_xxx() methods. If the val_xxx() method is not called
the null_value flag will be set only for certain types of NULL
values (like SQL constant NULLs for example).
This caused a crash while trying to dereference a NULL pointer
that is returned by val_str() for NULL values.
Fixed by swapping the order of val_xxx() and null_value check.
mysql-test/r/udf.result:
Bug #25382: Passing NULL to an UDF called from stored procedures
crashes server
- test case
mysql-test/t/udf.test:
Bug #25382: Passing NULL to an UDF called from stored procedures
crashes server
- test case
sql/item_func.cc:
Bug #25382: Passing NULL to an UDF called from stored procedures
crashes server
- reliably check null_value
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when they contain the '!' operator.
Added an implementation for the method Item_func_not::print.
The method encloses any NOT expression into extra parentheses to avoid
incorrect stored representations of views that use the '!' operators.
Without this change when a view was created that contained
the expression !0*5 its stored representation contained not this
expression but rather the expression not(0)*5 .
The operator '!' is of a higher precedence than '*', while NOT is
of a lower precedence than '*'. That's why the expression !0*5
is interpreted as not(0)*5, while the expression not(0)*5 is interpreted
as not((0)*5) unless sql_mode is set to HIGH_NOT_PRECEDENCE.
Now we translate !0*5 into (not(0))*5.
mysql-test/r/sp-code.result:
Adjusted results after the fix of bug 25580.
mysql-test/r/subselect.result:
Adjusted results after the fix of bug 25580.
mysql-test/r/view.result:
Added a test case for bug #25580.
mysql-test/t/view.test:
Added a test case for bug #25580.
sql/item_cmpfunc.cc:
Fixed bug #25580: incorrect stored representations of views in cases
when they contain the '!' operator.
Added an implementation for the method Item_func_not::print.
The method encloses the NOT expression into extra parenthesis to avoid
incorrect stored representations of views that use the '!' operators.
sql/item_cmpfunc.h:
Fixed bug #25580: incorrect stored representations of views in cases
when they contain the '!' operator.
Added an implementation for the method Item_func_not::print.
The method encloses the NOT expression into extra parenthesis to avoid
incorrect stored representations of views that use the '!' operators.
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into olga.mysql.com:/home/igor/mysql-5.0-opt
mysql-test/r/range.result:
Auto merged
mysql-test/t/range.test:
Auto merged
sql/opt_range.h:
Manual merge.
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for queries using 'range checked for each record'.
The problem was fixed in 5.0 by the patch for bug 12291.
This patch down-ported the corresponding code from 5.0 into
QUICK_SELECT::init() and added a new test case.
mysql-test/r/range.result:
Added a test case for bug #24776.
mysql-test/t/range.test:
Added a test case for bug #24776.
sql/opt_range.h:
Fixed bug #24776: an assertion abort in handler::ha_index_init
for queries using 'range checked for each record'.
The problem was fixed in 5.0 by the patch for bug 12291.
The patch for 4.1 down-ported the corresponding code from 5.0 into
QUICK_SELECT::init().
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Fix for crashes on 64bit platforms after fixing bug#23417.
sql/sql_select.cc:
Fix for crashes on 64bit platforms after fixing bug#23417.
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into rakia.gmz:/home/kgeorge/mysql/autopush/B20420-5.0-opt
sql/item_cmpfunc.h:
Auto merged
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The optimizer needs to evaluate whether predicates are better
evaluated using an index. IN is one such predicate.
To qualify an IN predicate must involve a field of the index
on the left and constant arguments on the right.
However whether an expression is a constant can be determined only
by knowing the preceding tables in the join order.
Assuming that only IN predicates with expressions on the right that
are constant for the whole query qualify limits the scope of
possible optimizations of the IN predicate (more specifically it
doesn't allow the "Range checked for each record" optimization for
such an IN predicate.
Fixed by not pre-determining the optimizability of the IN predicate
in the case when all right IN operands are not SQL constant expressions
mysql-test/r/func_in.result:
BUG#20420: optimizer reports wrong keys on left join with IN
- test case
mysql-test/t/func_in.test:
BUG#20420: optimizer reports wrong keys on left join with IN
- test case
sql/item_cmpfunc.h:
BUG#20420: optimizer reports wrong keys on left join with IN
- cannot decide on the optimizability of a function without
knowing the tables before it in the join order
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in a select list.
The objects of the Item_trigger_field class inherited the implementations
of the methods copy_or_same, get_tmp_table_item and get_tmp_table_field
from the class Item_field while they rather should have used the default
implementations defined for the base class Item.
It could cause catastrophic problems for triggers that used SELECTs
with select list containing trigger fields such as NEW.<table column>
under DISTINCT.
mysql-test/r/trigger.result:
Added a test case for bug #25398.
mysql-test/t/trigger.test:
Added a test case for bug #25398.
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After merge fix
mysql-test/r/func_str.result:
After merge fix
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into moonbone.local:/work/latest-5.0-opt-mysql
mysql-test/t/func_str.test:
Auto merged
sql/item_strfunc.cc:
Auto merged
sql/item_strfunc.h:
Auto merged
sql/sql_delete.cc:
Auto merged
mysql-test/r/delete.result:
Manual merge
mysql-test/r/func_str.result:
Manual merge
mysql-test/t/delete.test:
Manual merge
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correctly.
The Item_func::print method was used to print the Item_func_encode and the
Item_func_decode objects. The last argument to ENCODE and DECODE functions
is a plain C string and thus Item_func::print wasn't able to print it.
The print() method is added to the Item_func_encode class. It correctly
prints the Item_func_encode and the Item_func_decode objects.
mysql-test/t/func_str.test:
Added a test case for bug#23409: Arguments of the ENCODE() and the
> DECODE() functionswere not printed correctly.
mysql-test/r/func_str.result:
Added a test case for bug#23409: Arguments of the ENCODE() and the DECODE() functions were not printed correctly.
sql/item_strfunc.h:
Bug#23409: Arguments of the ENCODE() and the DECODE() functions were not printed correctly.
The print() method is added to the Item_func_encode class.
sql/item_strfunc.cc:
Bug#23409: Arguments of the ENCODE() and the DECODE() functions were not printed correctly.
The print() method is added to the Item_func_encode class. It correctly
prints the Item_func_encode and the Item_func_decode objects.
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WHERE is present.
If a DELETE statement with ORDER BY and LIMIT contains a WHERE clause
with conditions that for sure cannot be used for index access (like in
WHERE @var:= field) the execution always follows the filesort path.
It happens currently even when for the above case there is an index that
can be used to speedup sorting by the order by list.
Now if a DELETE statement with ORDER BY and LIMIT contains such WHERE
clause conditions that cannot be used to build any quick select then
the mysql_delete() tries to use an index like there is no WHERE clause at all.
mysql-test/t/delete.test:
Added a test case for bug#17711: DELETE doesn't use index when ORDER BY, LIMIT and non-restricting
WHERE is present.
mysql-test/r/delete.result:
Added a test case for bug#17711: DELETE doesn't use index when ORDER BY, LIMIT and non-restricting WHERE is present.
sql/sql_delete.cc:
Bug#17711: DELETE doesn't use index when ORDER BY, LIMIT and non-restricting WHERE is present.
Now if a DELETE statement with ORDER BY and LIMIT contains such WHERE
clause conditions that cannot be used to build any quick select then
the mysql_delete() tries to use an index like there is no WHERE clause at all.
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into moonbone.local:/work/23417-bug-5.0-opt-mysql
sql/sql_base.cc:
Auto merged
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Currently in the ONLY_FULL_GROUP_BY mode no hidden fields are allowed in the
select list. To ensure this each expression in the select list is checked
to be a constant, an aggregate function or to occur in the GROUP BY list.
The last two requirements are wrong and doesn't allow valid expressions like
"MAX(b) - MIN(b)" or "a + 1" in a query with grouping by a.
The correct check implemented by the patch will ensure that:
any field reference in the [sub]expressions of the select list
is under an aggregate function or
is mentioned as member of the group list or
is an outer reference or
is part of the select list element that coincide with a grouping element.
The Item_field objects now can contain the position of the select list
expression which they belong to. The position is saved during the
field's Item_field::fix_fields() call.
The non_agg_fields list for non-aggregated fields is added to the SELECT_LEX
class. The SELECT_LEX::cur_pos_in_select_list now contains the position in the
select list of the expression being currently fixed.
sql/item.cc:
Bug#23417: Too strict checks against GROUP BY in the ONLY_FULL_GROUP_BY mode.
The Item_field objects now contain the position of the select list
expression which they belong to. The position is saved at the field's
Item_field::fix_fields() call.
sql/item.h:
Bug#23417: Too strict checks against GROUP BY in the ONLY_FULL_GROUP_BY mode.
The Item_field objects now can store the position in the select list of the
expression to which they are belongs to.
sql/mysql_priv.h:
Bug#23417: Too strict checks against GROUP BY in the ONLY_FULL_GROUP_BY mode.
Added the UNDEF_POS constant.
sql/sql_base.cc:
Bug#23417: Too strict checks against GROUP BY in the ONLY_FULL_GROUP_BY mode.
Now the setup_fields() function maintains the cur_pos_in_select_list variable.
sql/sql_lex.cc:
Bug#23417: Too strict checks against GROUP BY in the ONLY_FULL_GROUP_BY mode.
Set the cur_pos_in_select_list variable and the non_agg_fields list to their initial state.
sql/sql_lex.h:
Bug#23417: Too strict checks against GROUP BY in the ONLY_FULL_GROUP_BY mode.
The non_agg_fields list for non-aggregated fields is added to the SELECT_LEX
class. The SELECT_LEX::cur_pos_in_select_list now stores the position in the
select list of the expression being currently fixed.
sql/sql_select.cc:
Bug#23417: Too strict checks against GROUP BY in the ONLY_FULL_GROUP_BY mode.
Each select now keeps the list of fields that aren't
used under any aggregate function. If an expression from the select list
isn't found in the GROUP BY list the setup_group() function additionally
checks whether non-aggregated fields occur in that expression.
If there at least one such field and it isn't found in the GROUP BY list
then an error is thrown.
sql/sql_union.cc:
Bug#23417: Too strict checks against GROUP BY in the ONLY_FULL_GROUP_BY mode.
Clean up of the non_agg_fields list.
mysql-test/r/group_by.result:
Added a test case for the bug#23417: Too strict checks against GROUP BY in the ONLY_FULL_GROUP_BY mode.
mysql-test/t/group_by.test:
Added a test case for the bug#23417: Too strict checks against GROUP BY in the ONLY_FULL_GROUP_BY mode.
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the team tree for additional investigation.
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into mockturtle.local:/home/dlenev/src/mysql-5.0-merge
mysql-test/t/disabled.def:
Auto merged
mysql-test/t/ps.test:
Auto merged
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