tables can cause server to crash!

The bug will be fixed by patch for #34779: "crash in checksum table
on federated tables with blobs containing nulls"

Only a test case commited.


mysql-test/r/federated.result:
  Test case for bug #34774: key prefix on text field in federated 
  tables can cause server to crash!
    - test result.
mysql-test/t/federated.test:
  Test case for bug #34774: key prefix on text field in federated 
  tables can cause server to crash!
    - test case.

when InnoDB frm file corruption

Problem: mysqlcheck runs 'SHOW FULL TABLE' queries to get table lists.
The query may fail for some reasons (e.g. null .frm file) then
mysqlcheck doesn't process the database tables.

Fix: try to run 'SHOW TABLES' if 'SHOW FULL TABLES' failed.


client/mysqlcheck.c:
  Fix for bug#37527: mysqlcheck fails to report entire database 
  when InnoDB frm file corruption
    - run "SHOW TABLES" query if "SHOW /*!50002 FULL*/ TABLES" failed;
    - print error info if both failed.
mysql-test/r/mysqlcheck.result:
  Fix for bug#37527: mysqlcheck fails to report entire database 
  when InnoDB frm file corruption
    - test result.
mysql-test/t/mysqlcheck.test:
  Fix for bug#37527: mysqlcheck fails to report entire database 
  when InnoDB frm file corruption
    - test case.

Reordered include files so that no mess will be left if this test is run without InnoDB
Previously, this test would leave a database named 'federated' in such a case and would
cause tests that examined existing databases to fail.

issue 'The storage engine for the table doesn't support check' note for I_S tables


mysql-test/r/mysqlcheck.result:
  test result
mysql-test/t/mysqlcheck.test:
  test case
sql/sql_table.cc:
  issue 'The storage engine for the table doesn't support check' note for I_S tables

table->partition_info is unitialized when we open frm file only.
The fix is check share->partition_info_len which is set on
frm opening stage.


mysql-test/r/information_schema_part.result:
  test result
mysql-test/t/information_schema_part.test:
  test case
sql/sql_show.cc:
  table->partition_info is unitialized when we open frm file only.
  The fix is check share->partition_info_len which is set on
  frm opening stage.

VARIABLE_VALUE field is decreased to 1024 symbols.
(affected I_S tables: GLOBAL_VARIABLES, SESSION_VARIABLES,
 GLOBAL_STATUS, SESSION_STATUS).
The only variable which can be longer than 1024 is
init_connect. The variable will be truncated with warning.
Additional fix:
Added where condition filter which speed up queries which
have where condition with expressions which use VARIABLE_NAME
field.


mysql-test/r/information_schema.result:
  test result
mysql-test/r/show_check.result:
  result fix
mysql-test/suite/funcs_1/r/is_columns_is.result:
  result fix
mysql-test/t/information_schema.test:
  test case
sql/sql_show.cc:
  VARIABLE_VALUE field is decreased to 1024 symbols.
  (affected I_S tables: GLOBAL_VARIABLES, SESSION_VARIABLES,
   GLOBAL_STATUS, SESSION_STATUS).
  The only variable which can be longer than 1024 is
  init_connect. The variable will be truncated with warning.
  Additional fix:
  Added where condition filter which speed up queries which
  have where condition with expressions which use VARIABLE_NAME
  field.

changed 'charset', 'collation' field length from 64 to MY_CS_NAME_SIZE(32)
in tables:
SCHEMATA, TABLES, COLUMNS, CHARACTER_SETS,
COLLATIONS, COLLATION_CHARACTER_SET_APPLICABILITY


mysql-test/r/create.result:
  result fix
mysql-test/r/information_schema.result:
  result fix
mysql-test/r/show_check.result:
  result fix
mysql-test/suite/funcs_1/r/is_character_sets.result:
  result fix
mysql-test/suite/funcs_1/r/is_collation_character_set_applicability.result:
  result fix
mysql-test/suite/funcs_1/r/is_collations.result:
  result fix
mysql-test/suite/funcs_1/r/is_columns.result:
  result fix
mysql-test/suite/funcs_1/r/is_columns_is.result:
  result fix
mysql-test/suite/funcs_1/r/is_routines.result:
  result fix
mysql-test/suite/funcs_1/r/is_schemata.result:
  result fix
mysql-test/suite/funcs_1/r/is_tables.result:
  result fix
sql/sql_show.cc:
  changed 'charset', 'collation' field length from 64 to MY_CS_NAME_SIZE(32)
  in tables:
  SCHEMATA, TABLES, COLUMNS, CHARACTER_SETS,
  COLLATIONS, COLLATION_CHARACTER_SET_APPLICABILITY
  additional fix: ROUTINES.SQL_MODE is changed to be VARCHAR(addon for Bug#29153)

added FLUSH TABLES after INSERT because UPDATE_TIME is updated with delay
on Win.


mysql-test/suite/funcs_1/datadict/is_tables.inc:
  test fix
mysql-test/suite/funcs_1/r/is_tables.result:
  result fix

mysql_config did not output -ldl (or equivalent) when needed for --libmysqld-libs,
so its output could be insufficient to build an application using the embedded
server.

LIBDL was already set in configure; it's now propagated all the way into the
relevant mysql_config scripts.

scripts/Makefile.am:
  We "manually" replace configure's constants in .sh scripts using sed,
  so AC_SUBST() alone is not good enough. Add LIBDL to the substitution
  list; we'll be needing it for mysql_config --libmysqld-libs
scripts/mysql_config.pl.in:
  Add LIBDL (usually -ldl) to output of mysql_config --libmysqld-libs (perl version)
scripts/mysql_config.sh:
  Add LIBDL (usually -ldl) to output of mysql_config --libmysqld-libs (shell version)

japanese characters.

Fix - removed obsolvete setlocale from my_init.c . In MBCS 
environments it caused unwanted character-to-byte translations
in fputc()  in client code and wrong output as result.

            
Innodb monitor could cause a server crash because of invalid access to a
shared variable in a concurrent environment.
                  
This patch adds a guard to protect against crashes but not against
inconsistent values because of performance reasons.

sql/sql_class.cc:
  * Attempt snapshot of static memory pointer proc_info to avoid null pointers.

where it was forgotten to remove them.

refining the regression test to avoid explicit innodb engine in create.

Prevent this by modifying CFLAGS and CXXFLAGS.

Upmerge from 5.0, modified according to the different spec file structure.

support-files/mysql.spec.sh:
  Bug #40546  Debug server in RPM is built with compiler optimization
  
  Modify CFLAGS and CXXFLAGS for the duration of the debug server build
  (implemented by doing it in a subshell)
  so that they do not contain any optimization flag.
  Play it safe and prepare for both gcc and icc.

Prevent this by modifying CFLAGS and CXXFLAGS.

support-files/mysql.spec.sh:
  Bug #40546  Debug server in RPM is built with compiler optimization
  
  Modify CFLAGS and CXXFLAGS for the duration of the debug server build
  (implemented by doing it in a subshell)
  so that they do not contain any optimization flag.
  Play it safe and prepare for both gcc and icc.

Problem 1: BUG#36625: rpl_redirect doesn't do anything useful. It tests an
obsolete feature that was never fully implemented.
Fix 1: Remove rpl_redirect.
Problem 2: rpl_innodb_bug28430 and rpl_flushlog_loop are disabled despite the
bugs for which they were disabled have been fixed.
Fix 2: Re-enable rpl_innodb_bug28430 and rpl_flushlog_loop.


mysql-test/suite/rpl/r/rpl_redirect.result:
  Removed result file for obsolete test.\
mysql-test/suite/rpl/t/disabled.def:
  Re-enabled tests.
mysql-test/suite/rpl/t/rpl_redirect.test:
  Removed obsolete test.

The convert_constant_item function converts a constant to integer using
field for condition like 'field = a_constant'. In some cases the
convert_constant_item is called for a subquery when outer select is already
being executed, so convert_constant_item saves field's value to prevent its
corruption. For EXPLAIN and at the prepare phase field's value isn't
initialized yet, thus when convert_constant_item tries to restore saved
value it fails assertion.

Now the convert_constant_item doesn't save/restore field's value if it's
haven't been read yet. Outer constant values are always saved.

mysql-test/r/explain.result:
  Added a test case for the bug#37870.
mysql-test/t/explain.test:
  Added a test case for the bug#37870.
sql/item_cmpfunc.cc:
  Bug#37870: Usage of uninitialized value caused failed assertion.
  Now the convert_constant_item doesn't save/restore field's value if it's
  haven't been read yet. Outer constant values are always saved.