into  mysql.com:/home/hf/work/mrg/mysql-5.0-opt


sql/sql_parse.cc:
  Auto merged

into  mysql.com:/home/svoj/devel/bk/mysql-5.0-engines

into  mysql.com:/home/hf/work/mrg/mysql-5.0-opt


sql/sql_parse.cc:
  Auto merged

into  mysql.com:/home/hf/work/mrg/mysql-5.0-opt


mysql-test/r/gis-rtree.result:
  Auto merged

into  mockturtle.local:/home/dlenev/src/mysql-4.1-merge

into  mockturtle.local:/home/dlenev/src/mysql-5.0-merge

into  mockturtle.local:/home/dlenev/src/mysql-5.0-bg25966-2


sql/mysqld.cc:
  Auto merged

TABLE ... WRITE".

Memory and CPU hogging occured when connection which had to wait for table
lock was serviced by thread which previously serviced connection that was
killed (note that connections can reuse threads if thread cache is enabled).
One possible scenario which exposed this problem was when thread which
provided binlog dump to replication slave was implicitly/automatically
killed when the same slave reconnected and started pulling data through
different thread/connection.
The problem also occured when one killed particular query in connection
(using KILL QUERY) and later this connection had to wait for some table
lock.

This problem was caused by the fact that thread-specific mysys_var::abort
variable, which indicates that waiting operations on mysys layer should
be aborted (this includes waiting for table locks), was set by kill
operation but was never reset back. So this value was "inherited" by the
following statements or even other connections (which reused the same
physical thread). Such discrepancy between this variable and THD::killed
flag broke logic on SQL-layer and caused CPU and memory hogging.

This patch tries to fix this problem by properly resetting this member.

There is no test-case associated with this patch since it is hard to test
for memory/CPU hogging conditions in our test-suite.


sql/mysqld.cc:
  We should not forget to reset THD::mysys_var::abort after kill operation
  if we are going to use thread to which this operation was applied for
  handling of other connections.
sql/sp_head.cc:
  We should not forget to reset THD::mysys_var::abort after kill operation
  if we are going to use thread to which this operation was applied for
  handling of further statements.
sql/sql_parse.cc:
  We should not forget to reset THD::mysys_var::abort after kill operation
  if we are going to use thread to which this operation was applied for
  handling of further statements.

TABLE ... WRITE".

CPU hogging occured when connection which had to wait for table lock was
serviced by thread which previously serviced connection that was killed
(note that connections can reuse threads if thread cache is enabled).
One possible scenario which exposed this problem was when thread which
provided binlog dump to replication slave was implicitly/automatically
killed when the same slave reconnected and started pulling data through
different thread/connection.
In 5.* versions memory hogging was added to CPU hogging. Moreover in
those versions the problem also occured when one killed particular query
in connection (using KILL QUERY) and later this connection had to wait for
some table lock.

This problem was caused by the fact that thread-specific mysys_var::abort
variable, which indicates that waiting operations on mysys layer should
be aborted (this includes waiting for table locks), was set by kill
operation but was never reset back. So this value was "inherited" by the
following statements or even other connections (which reused the same
physical thread). Such discrepancy between this variable and THD::killed
flag broke logic on SQL-layer and caused CPU and memory hogging.

This patch tries to fix this problem by properly resetting this member.

There is no test-case associated with this patch since it is hard to test
for memory/CPU hogging conditions in our test-suite.


sql/mysqld.cc:
  We should not forget to reset THD::mysys_var::abort after kill operation
  if we are going to use thread to which this operation was applied for
  handling of other connections.

into  mysql.com:/home/kent/bk/tmp/mysql-5.0-build

into  mysql.com:/home/kent/bk/tmp/mysql-4.1-build

  Updated to version 0.6 of the text


EXCEPTIONS-CLIENT:
  Updated to version 0.6 of the text

into  mysql.com:/home/kent/bk/tmp/mysql-5.0-build


configure.in:
  Auto merged

into  mysql.com:/home/kent/bk/tmp/mysql-5.0-build

into  mysql.com:/home/kent/bk/tmp/mysql-4.1-build

into  mysql.com:/home/kent/bk/tmp/mysql-4.1-build


configure.in:
  SCCS merged

  Added test for sched_yield() possibly in -lposix4 on Solaris


configure.in:
  Added test for sched_yield() possibly in -lposix4 on Solaris

into  magare.gmz:/home/kgeorge/mysql/autopush/B26794-5.0-opt


sql/field.cc:
  Auto merged

Different set of conditions is used to verify
the validity of index definitions over a GEOMETRY
column in ALTER TABLE and CREATE TABLE. 
The difference was on how sub-keys notion validity
is checked.
Fixed by extending the CREATE TABLE condition to
support the cases allowed in ALTER TABLE.
Made the SHOW CREATE TABLE not to display spatial
indexes using the sub-key notion.


mysql-test/r/alter_table.result:
  Bug #26794: test case
mysql-test/r/gis-rtree.result:
  Bug #26794: fixed SHOW CREATE TABLE output.
mysql-test/t/alter_table.test:
  Bug #26794: test case
sql/field.cc:
  Bug #26794: Allow sub-keys for GEOMETRY
sql/sql_show.cc:
  Bug #26794: Don't show sub-key notion 
   in SHOW CREATE TABLE for SPATIAL indexes.
sql/sql_table.cc:
  Bug #26794: Allow sub-keys for GEOMETRY

into  magare.gmz:/home/kgeorge/mysql/autopush/B26672-5.0-opt


mysql-test/r/order_by.result:
  Auto merged
mysql-test/t/order_by.test:
  Auto merged

into  mysql.com:/home/svoj/devel/mysql/BUG26881/mysql-5.0-engines


myisam/mi_create.c:
  Auto merged
mysql-test/t/merge.test:
  Auto merged
sql/ha_myisam.cc:
  Auto merged
sql/sql_parse.cc:
  Use local.
mysql-test/r/merge.result:
  SCCS merged

            differences in tables
Certain merge tables were wrongly reported as having incorrect definition:
- Some fields that are 1 byte long (e.g. TINYINT, CHAR(1)), might
  be internally casted (in certain cases) to a different type on a
  storage engine layer. (affects 4.1 and up)
- If tables in a merge (and a MERGE table itself) had short VARCHAR column (less
  than 4 bytes) and at least one (but not all) tables were ALTER'ed (even to an
  identical table: ALTER TABLE xxx ENGINE=yyy), table definitions went ouf of
  sync. (affects 4.1 only)

This is fixed by relaxing a check for underlying conformance and setting
field type to FIELD_TYPE_STRING in case varchar is shorter than 4
when a table is created.


myisam/mi_create.c:
  Added a comment.
mysql-test/r/merge.result:
  A test case for bug#26881.
mysql-test/t/merge.test:
  A test case for bug#26881.
sql/ha_myisam.cc:
  Relaxed some checks performed by check_definition():
  As comparing of fulltext keys (and key segments) is not yet implemented,
  only return an error in case one of keys is fulltext and other is not.
  Otherwise, if both keys are fulltext, accept them as is.
  
  As comparing of spatial keys (and key segments) is not yet implemented,
  only return an error in case one of keys is spatial and other is not.
  Otherwise, if both keys are spatial, accept them as is.
  
  A workaround to handle situation when field is casted from FIELD_SKIP_ZERO
  to FIELD_NORMAL. This could happen only in case field length is 1 and row
  format is fixed.
sql/sql_parse.cc:
  When a table that has varchar field shorter than 4 is created, field type is
  set to FIELD_TYPE_VAR_STRING. Later, when a table is modified using alter
  table, field type is changed to FIELD_TYPE_STRING (see Field_string::type).
  That means HA_OPTION_PACK_RECORD flag might be lost and thus null_bit might
  be shifted by alter table, in other words alter table doesn't create 100%
  equal table definition.
  
  This is usually not a problem, since when a table is created/altered,
  definition on a storage engine layer is based on one that is passed from
  sql layer. But it is a problem for merge engine - null_bit is shifted when
  a table (merge or underlying) is altered.
  
  Set field type to FIELD_TYPE_STRING in case FIELD_TYPE_VAR_STRING is shorter
  than 4 when a table is created as it is done in Field::type.

into  mysql.com:/home/svoj/devel/mysql/BUG26881/mysql-5.0-engines

into  mysql.com:/home/svoj/devel/mysql/BUG26881/mysql-5.0-engines


myisam/rt_index.c:
  Auto merged
sql/field.h:
  Auto merged

into  mysql.com:/home/svoj/devel/mysql/BUG26881/mysql-4.1-engines

into  mysql.com:/home/kent/bk/tmp/mysql-5.0-build

into  mysql.com:/home/kent/bk/tmp/mysql-5.0-build


configure.in:
  SCCS merged

  Restored accidently removed line to check for zlib


configure.in:
  Restored accidently removed line to check for zlib

into  trift2.:/MySQL/M50/push-5.0

  Removed references to my_winsem.c


mysys/CMakeLists.txt:
  Removed references to my_winsem.c
mysys/Makefile.am:
  Removed references to my_winsem.c

into  mysql.com:/home/kent/bk/tmp/mysql-5.0-build


VC++Files/mysys/mysys.vcproj:
  Auto merged
VC++Files/mysys/mysys_ia64.dsp:
  Auto merged
mysys/Makefile.am:
  Auto merged
BitKeeper/deleted/.del-my_semaphore.c:
  Auto merged
VC++Files/mysys/mysys.dsp:
  SCCS merged

  Removed references to unused files


VC++Files/mysys/mysys.vcproj:
  Removed unused files
VC++Files/mysys/mysys_ia64.dsp:
  Removed unused files

into  mysql.com:/home/kent/bk/tmp/mysql-4.1-build


include/Makefile.am:
  Auto merged

  Removed unused files
.del-my_winsem.c:
  Delete: mysys/my_winsem.c
.del-my_semaphore.c:
  Delete: mysys/my_semaphore.c
.del-my_semaphore.h:
  Delete: include/my_semaphore.h


BitKeeper/deleted/.del-my_semaphore.c:
  Delete: mysys/my_semaphore.c
BitKeeper/deleted/.del-my_semaphore.h:
  Delete: include/my_semaphore.h
BitKeeper/deleted/.del-my_winsem.c:
  Delete: mysys/my_winsem.c
VC++Files/mysys/mysys.dsp:
  Removed unused files
configure.in:
  Removed unused files
include/Makefile.am:
  Removed unused files
mysys/Makefile.am:
  Removed unused files

into  olga.mysql.com:/home/igor/dev-opt/mysql-5.0-opt-bug26963


mysql-test/r/select.result:
  Auto merged
mysql-test/t/select.test:
  Auto merged

into  ymer.(none):/usr/local/mysql/mysql-5.0-ndb

when the column is to be read from a derived table column which 
was specified as a concatenation of string literals.
The bug happened because the Item_string::append did not adjust the
value of Item_string::max_length. As a result of it the temporary 
table column  defined to store the concatenation of literals was 
not wide enough to hold the whole value.



mysql-test/r/subselect.result:
  Added a test case for bug #26738.
mysql-test/t/subselect.test:
  Added a test case for bug #26738.