localhost/default port

When creating federated table that points to unspecified host or
localhost on unspecified port or port is 0, small memory leak occurs.

This happens because we make a copy of unix socket path, which is
never freed.

With this fix we do not make a copy of unix socket path, instead
share->socket points to MYSQL_UNIX_ADDR constant directly.

This fix is covered by a test case for BUG34788.

Affects 5.0 only.


mysql-test/t/federated.test:
  A test case for BUG#35509.
sql/ha_federated.cc:
  When creating federated table we call parse_url() to check if connect
  string is correct. parse_url() may make a copy of unix socket path if
  port is not specified or 0 and host is not specified or 'localhost'.
  This copy is never freed.
  
  As there is no need to make a copy of unix socket path, let
  share->socket point to MYSQL_UNIX_ADDR directly.

            correctly - crashes server !

Creating federated table with connect string containing empty
(zero-length) host name and port is evaluated as 0 (port is
incorrect, omitted or 0) crashes server.

This happens because federated calls strcmp() with NULL pointer.

Fixed by avoiding strcmp() call if hostname is set to NULL.


mysql-test/r/federated.result:
  A test case for BUG#34788.
mysql-test/t/federated.test:
  A test case for BUG#34788.
sql/ha_federated.cc:
  Fixed that parse_url() may call strcmp() with NULL pointer.

into  pcg5ppc.xiphis.org:/Network/Servers/anubis.xiphis.org/home/antony/work/merge.20080307/mysql-5.0


sql/sql_yacc.yy:
  Auto merged

into  pcg5ppc.xiphis.org:/Network/Servers/anubis.xiphis.org/home/antony/work/merge.20080307/mysql-5.0

into  pcg5ppc.xiphis.org:/Network/Servers/anubis.xiphis.org/home/antony/work/merge.20080307/mysql-5.0


mysql-test/r/func_misc.result:
  Auto merged
mysql-test/r/myisam.result:
  Auto merged
mysql-test/t/func_misc.test:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_func.cc:
  Auto merged

into  mysql.com:/home/svoj/devel/mysql/BUG28248/mysql-5.0-engines

When there are no underlying tables specified for a merge table,
SHOW CREATE TABLE outputs a statement that cannot be executed. The
same is true for mysqldump (it generates dumps that cannot be
executed).

This happens because SQL parser does not accept empty UNION() clause.

This patch changes the following:
- it is now possible to execute CREATE/ALTER statement with
  empty UNION() clause.
- the same as above, but still worth noting: it is now possible to
  remove underlying tables mapping using ALTER TABLE ... UNION=().
- SHOW CREATE TABLE does not output UNION() clause if there are
  no underlying tables specified for a merge table. This makes
  mysqldump slightly smaller.


mysql-test/r/merge.result:
  A test case for BUG#28248.
mysql-test/t/merge.test:
  A test case for BUG#28248.
sql/ha_myisammrg.cc:
  Do not output UNION clause in SHOW CREATE TABLE, when there are
  no underlying tables defined.
sql/sql_yacc.yy:
  Make underlying table list for MERGE engine optional.
  
  As for MERGE engine empty underlying tables list is valid, it should
  be valid for the parser as well.
  
  This change is mostly needed to restore dumps made by earlier MySQL
  versions. Also with this fix it is possible to remove underlying
  tables mapping by using ALTER TABLE ... UNION=().

            log-slave-updates and circul repl

This is a test case fix for BUG#13861.


mysql-test/r/rpl_dual_pos_advance.result:
  Fix for a test case for BUG#13861.
mysql-test/t/rpl_dual_pos_advance.test:
  Fix for a test case for BUG#13861.
  
  master_pos_wait() requires slave sql thread running. But it is not
  guaranteed for this test case. As we use start slave until it may
  execute all events and shutdown before master_pos_wait() is started.
  
  On the other hand it is safe just to wait for slave to stop here,
  as start slave returns _after_ sql thread is started.

  
Disable test case for bug 29948, which is causing sporadically
failures in other tests inside mysql_client_test.


tests/mysql_client_test.c:
  Disable test case.

into  kaamos.(none):/data/src/opt/mysql-5.0-opt

into  kaamos.(none):/data/src/opt/mysql-5.0-opt


client/mysql.cc:
  Auto merged
sql/filesort.cc:
  Auto merged
sql/item.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
tests/mysql_client_test.c:
  Auto merged
mysql-test/r/view.result:
  Manual merge.
mysql-test/t/view.test:
  Manual merge.
scripts/mysql_config.sh:
  Manual merge.

into  kaamos.(none):/data/src/opt/mysql-4.1-opt

into  mysql.com:/misc/mysql/34749/50-34749


mysql-test/r/func_misc.result:
  Auto merged
mysql-test/t/func_misc.test:
  Auto merged
sql/item.cc:
  Auto merged
sql/item.h:
  Auto merged

into  mysql.com:/misc/mysql/29645/50-29645

into  kaamos.(none):/data/src/opt/mysql-5.0-opt

into  pcg5ppc.xiphis.org:/Network/Servers/anubis.xiphis.org/home/antony/work/merge.20080307/mysql-5.0


sql/item.cc:
  Auto merged
sql/item_func.cc:
  Auto merged

into  mysql.com:/home/svoj/devel/mysql/BUG13861/mysql-5.0-engines

into  magare.gmz:/home/kgeorge/mysql/autopush/B34909-5.0-opt

  --master-data

No error code was returned by mysqldump if it detects that binary
logging is not enabled on the server.
Fixed by returning error code.


client/mysqldump.c:
  Bug #34909: add error code
mysql-test/r/mysqldump-no-binlog.result:
  Bug #34909: test case
mysql-test/t/mysqldump-no-binlog-master.opt:
  Bug #34909: test case
mysql-test/t/mysqldump-no-binlog.test:
  Bug #34909: test case

into  mysql.com:/home/psergey/mysql-5.0-bug34945

into  mysql.com:/home/bar/mysql-work/mysql-5.0.b27580v2


mysql-test/r/ctype_ucs.result:
  Auto merged
mysql-test/t/ctype_ucs.test:
  Auto merged
mysql-test/include/ctype_common.inc:
  after merge fix
mysql-test/r/ctype_big5.result:
  after merge fix
mysql-test/r/ctype_euckr.result:
  after merge fix
mysql-test/r/ctype_gb2312.result:
  after merge fix
mysql-test/r/ctype_gbk.result:
  after merge fix
mysql-test/r/ctype_uca.result:
  after merge fix

                    sporadically

Under some circumstances, the mysql_insert_id() value after SELECT ...
INSERT could return a wrong value. This could happen when the last
SELECT ... INSERT did not involve an AUTO_INCREMENT column, but the
value of mysql_insert_id() was changed by some previous statements.

Fixed by checking the value of thd->insert_id_used in
select_insert::send_eof() and returning 0 for mysql_insert_id() if it
is not set.


sql/sql_insert.cc:
  Do not return thd->last_insert_id unconditionally in
  select_insert::send_eof(). First check if thd->insert_id_used is
  non-zero, and return 0 otherwise.
tests/mysql_client_test.c:
  Added a test case for bug #34889.

Problem: libedit is a very pure-ASCII oriented library,
and it is not aware of extended (0x80..0xFF) or even multi-byte
characters. It considered such characters as non-printable
and didn't allow to input them.
Fix: make libedit think that all bytes >= 0x80 are printable.


cmd-line-utils/libedit/el.h:
  Defining macro, a locale's isprint() replacement.
  We'll consider all 8bit values as printable characters.
cmd-line-utils/libedit/key.c:
  Changing isprint() to el_isprint().
cmd-line-utils/libedit/map.c:
  Changing isprint() to el_isprint().
cmd-line-utils/libedit/read.c:
  Changing isprint() to el_isprint().
cmd-line-utils/libedit/refresh.c:
  Changing isprint() to el_isprint().

- Apply Eric Bergen's patch: in join_read_always_key(), move ha_index_init() call
  to before the late NULLs filtering code.
- Backport function comments from 6.0.


mysql-test/r/null_key.result:
  BUG#34945: "ref_or_null queries that are null_rejecting and have a null value crash mysql"
  - Testcase
mysql-test/t/null_key.test:
  BUG#34945: "ref_or_null queries that are null_rejecting and have a null value crash mysql"
  - Testcase
sql/sql_select.cc:
  BUG#34945: "ref_or_null queries that are null_rejecting and have a null value crash mysql"
  - Apply Eric Bergen's patch: in join_read_always_key(), move ha_index_init() call
    to before the late NULLs filtering code.
  - Backport function comments from 6.0

into  kaamos.(none):/data/src/opt/mysql-5.0-opt

                    with errno 17

my_create() did not perform any checks for the case when a file is
successfully created by a call to open(), but the call to
my_register_filename() later fails because the number of open files
has exceeded the my_open_files limit. This can happen on platforms 
which do not have getrlimit(), and hence we do not know the real limit
for open files. In such a case an error was returned to a caller
although the file has actually been created. Since callers assume
my_create() to return an error only when it failed to create a file,
they did not perform any cleanups, leaving an 'orphaned' file on the
file system.

Fixed by adding a check for the above case to my_create() and ensuring
the newly created file is deleted before returning an error.

Creating a deterministic test case in the test suite is impossible,
because the exact steps required to reproduce the above situation
depend on the platform and/or environment (OS per-user limits, queries
executed by previous tests, startup parameters). The patch was
manually tested on Windows using examples posted in the bug report.


mysys/my_create.c:
  Ensure that, if the call to my_register_filename() in my_create()
  failed, but the previous open() called succeeded, the newly created
  file is deleted before returning an error.

into  host.loc:/home/uchum/work/5.0-opt

into  mysql.com:/home/gluh/MySQL/Merge/5.0-opt


mysql-test/t/symlink.test:
  Auto merged
mysql-test/r/symlink.result:
  after merge fix

mysql-test/r/symlink.result:
  result fix

                  and Item_direct_ref constructor calls.

Order of ref->field_name and ref->table_name arguments
is of Item_ref and Item_direct_ref in the fix_inner_refs
function is inverted.


sql/sql_select.cc:
  Fixed bug #34830: mixed table and field names in Item_ref
                    and Item_direct_ref constructor calls.
  
  Order of ref->field_name and ref->table_name arguments
  is of Item_ref and Item_direct_ref in the fix_inner_refs
  function is inverted. See definitions:
  
    Item_ref(Name_resolution_context *context_arg, Item **item,
             const char *table_name_arg, const char *field_name_arg,
             bool alias_name_used_arg= FALSE)
    and
  
    Item_direct_ref(Name_resolution_context *context_arg, Item **item,
                    const char *table_name_arg,
                    const char *field_name_arg,
                    bool alias_name_used_arg= FALSE)

into  mysql.com:/home/gluh/MySQL/Merge/5.0-opt


sql/mysql_priv.h:
  Auto merged
mysql-test/r/symlink.result:
  manual merge
mysql-test/t/symlink.test:
  manual merge
sql/mysqld.cc:
  manual merge
sql/sql_parse.cc:
  manual merge

added new function test_if_data_home_dir() which checks that
path does not contain mysql data home directory.
Using of mysql data home directory in
DATA DIRECTORY & INDEX DIRECTORY is disallowed.


mysql-test/r/symlink.result:
  test result
mysql-test/t/symlink.test:
  test case
sql/mysql_priv.h:
  new variable mysql_unpacked_real_data_home
sql/mysqld.cc:
  new variable mysql_unpacked_real_data_home
sql/sql_parse.cc:
  added new function test_if_data_home_dir() which checks that
  path does not contain mysql data home directory.
  Using of mysql data home directory in
  DATA DIRECTORY & INDEX DIRECTORY is disallowed.

must match the order which they were declared in the class definition. 


sql/item.cc:
  Fix initialization order, parameter was the last one declared.