Added a test case for bug #12095.
sql_class.h:
Fixed bug #12095: a join query with GROUP_CONCAT over a single row table.
Added a flag to the TMP_TABLE_PARAM class forcing to put constant
items generated after elimination of a single row table into temp table
in some cases (e.g. when GROUP_CONCAT is calculated over a single row
table).
bk ci sql/item_sum.cc
Fixed bug #12095: a join query with GROUP_CONCAT over a single row table.
If GROUP_CONCAT is calculated we always put its argument into a temp
table, even when the argument is a constant item.
sql_select.cc:
Fixed bug #12095: a join query with GROUP_CONCAT over one row table.
If temp table is used to calculate GROUP_CONCAT the argument should
be always put into this table, even when it is a constant item.
Fixed bug #12144.
Added an optimization that avoids key access with null keys for the 'ref'
method when used in outer joins. The regilar optimization with adding
IS NOT NULL expressions is not applied for outer join on expressions as
the predicates of these expressions are not pushed down in 4.1.
null_key.result, null_key.test:
Added a test case for bug #12144.
Fix for CAN-2005-1849 from zlib-1.2.3
(originally: 2005/07/27 14:55:08+02:00 lenz@mysql.com )
Ensure static linking takes the bundled libraries
(originally: 2005/07/27 16:42:13+02:00 lenz@mysql.com )
Version number change.
(This is because conds may not be a constant)
This bug caused a failure in the test suite for select.test becasue for prepared statements in one case a 'constant sub query' was not regarded as a constant
Sanja will as a separate task check if we can fix that the sub query can be recognized as a constant
Bug #12217
potential zlib security vulnerability (CAN-2005-1849). Fix was taken from the
official zlib-1.2.3 distribution (no other zlib-1.2.3 changes were applied)
Fixed portability problem with bool in C programs
Moved close_thread_tables out from LOCK_thread_count mutex (safety fix)
my_sleep() -> pthread_cond_timedwait()
ctype-cp932.c:
ctype-gbk.c:
ctype-mb.c:
ctype-simple.c:
ctype-sjis.c:
ctype-ucs2.c:
ctype-ujis.c:
ctype-utf8.c:
Adding explicit cast to return type
in pointer substructions to avoid
warnings from some compilers.
data files. Previously, writes were flushed until the doublewrite
buffer was created. That would be too slow on systems where
os_file_flush() [or fsync(2)] is slow. (Bug #12125)
Adding test
item_sum.cc:
Adding a call for collation/charset aggregation,
to collect attributes from the arguments. The actual bug fix.
item_func.h, item_func.cc, item.h, item.cc:
- Removing collation aggrgation functions from Item_func class
in item.cc, and adding it as non-class functions in item.cc
to be able to reuse this code for group_concat.
- Adding replacement for these functions into Item_func class
as wrappers for moved functions, to minizize patch size,
Bug#12109 possible locking bug in init_available_charset
Recheck charset_initialized inside locked code,
to garantee two threads are not entering
consequently.
added export symbols mysql_server_init and
mysql_server_end to allow client to connect to external and embedded
server using the same code (required for Connector/OO.org). (Backport from 5.0 - cs. 1.35)
