database/mariadb
database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-05-04 06:05:05 +03:00
Code
35,609 Commits 2,971 Branches 349 Tags
Commit Graph

1597 Commits

Author SHA1 Message Date
unknown
d2f08db40c BUG#20484: "Partitions: crash with EXPLAIN and UNION" 
- Don't forget to produce "partitions" column for "UNION RESULT" row of EXPLAIN output


mysql-test/r/partition_pruning.result:
  BUG#20484: Testcase
mysql-test/t/partition_pruning.test:
  BUG#20484: Testcase
 2006-06-30 09:34:06 +04:00
unknown
c2575322c6 Merge mysql.com:/home/emurphy/src/bk-clean/tmp_merge 
into  mysql.com:/home/emurphy/src/bk-clean/mysql-5.1


mysql-test/mysql-test-run.sh:
  Auto merged
mysql-test/valgrind.supp:
  Auto merged
mysql-test/r/func_str.result:
  Auto merged
mysql-test/r/insert_select.result:
  Auto merged
mysql-test/r/myisam.result:
  Auto merged
mysql-test/t/func_time.test:
  Auto merged
mysql-test/t/myisam.test:
  Auto merged
mysql-test/t/select.test:
  Auto merged
mysys/Makefile.am:
  Auto merged
sql/field.cc:
  Auto merged
sql/field.h:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/item_strfunc.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/opt_sum.cc:
  Auto merged
sql/slave.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
storage/ndb/src/kernel/blocks/dbdih/DbdihMain.cpp:
  Auto merged
storage/ndb/src/ndbapi/ndberror.c:
  Auto merged
include/Makefile.am:
  manual merge
mysql-test/r/func_time.result:
  manual merge
mysql-test/r/select.result:
  manual merge
 2006-06-25 09:59:34 -04:00
unknown
406a7ba992 field.cc, field.h: 
Additional fix for #16377 for bigendian platforms
sql_select.cc, select.result, select.test:
  After merge fix


mysql-test/t/select.test:
  After merge fix
mysql-test/r/select.result:
  After merge fix
sql/sql_select.cc:
  After merge fix
sql/field.h:
  Additional fix for #16377 for bigendian platforms
sql/field.cc:
  Additional fix for #16377 for bigendian platforms
 2006-06-21 01:14:53 +04:00
unknown
4d3803f0ed Manually merged 
mysql-test/r/insert_select.result:
  Auto merged
mysql-test/t/insert_select.test:
  Auto merged
 2006-06-20 22:22:14 +04:00
unknown
f3a56a17da SHOW STATUS does not anymore change local status variables (except com_show_status). Global status variables are still updated. 
SHOW STATUS are not anymore put in slow query log because of no index usage.

Implemntation done by removing orig_sql_command and moving logic of SHOW STATUS to mysql_excute_command()
This simplifies code and allows us to remove some if statements all over the code.

Upgraded uc_update_queries[] to sql_command_flags and added more bitmaps to better categorize commands.
This allowed some overall simplifaction when testing sql_command.

Fixes bugs:
Bug#10210: running SHOW STATUS increments counters it shouldn't
Bug#19764: SHOW commands end up in the slow log as table scans


mysql-test/r/grant_cache.result:
  Fixed results after SHOW STATUS doesn't anymore affect status variables
mysql-test/r/information_schema.result:
  Added extra test to cover more code
mysql-test/r/query_cache.result:
  Remove resuts from previous tests
mysql-test/r/status.result:
  Added more tests for testing of last_query_cost and how SHOW STATUS affects status variables.
  (Bug#10210)
mysql-test/r/temp_table.result:
  Fixed results after SHOW STATUS doesn't anymore affect status variables
mysql-test/r/union.result:
  Fixed results after SHOW STATUS is not logged to slow query log
  (Bug#19764)
mysql-test/t/events_microsec.test:
  Disable warnings at init
mysql-test/t/information_schema.test:
  Added extra test to cover more code
mysql-test/t/query_cache.test:
  Remove resuts from previous tests
mysql-test/t/status.test:
  Added more tests for testing of last_query_cost and how SHOW STATUS affects status variables.
  (Bug #10210)
sql/mysql_priv.h:
  Added 'sql_command_flags'
sql/sql_class.cc:
  New function add_diff_to_status(), used to update global status variables when using SHOW STATUS
sql/sql_class.h:
  New function 'fill_information_schema_tables()'
  (One could not anymore use fill_derived_tables() for this as only_view_structures() is not relevant for information schema tables)
  Added defines for bit flags in sql_command_flags[]
sql/sql_lex.cc:
  Remove orig_sql_command
sql/sql_lex.h:
  Remove orig_sql_command
sql/sql_parse.cc:
  Rename uc_update_queries -> sql_command_flags.
  Enhanced 'sql_command_flags' to better classify SQL commands
  uc_update_queries[] != 0 is changed to (sql_command_flags[] & CF_CHANGES_DATA)
  lex->orig_sql_command == SQLCOM_END is changed to (sql_command_flags[lex->sql_command] & CF_STATUS_COMMAND) == 0)
  
  Simplify incrementing of thd->status_var.com_stat[] as we don't have to do special handling for SHOW commands.
  
  Split SQLCOM_SELECT handling in mysql_execute_command() to a separate function.
  Added special handling of SHOW STATUS commands in mysql_execute_command() and call common SQLCOM_SELECT handling.
  These changes allows us to easily fix that we save and restore status variables during execution of a SHOW STATUS command.
  Don't log SHOW STATUS commands to slow query log.
  
  This fixes Bug#10210 and Bug#19764 without adding additional 'if' code.
  (The new code is faster than the original as we now have fewer if's than before)
sql/sql_prepare.cc:
  Clean up prepare-check handling of SQLCOM commands by using sql_command_flags[]
  This simplifes code and ensures that code works even if someone forgets to put a new status commands into the switch statement.
sql/sql_select.cc:
  Remove special handling of SHOW STATUS.
  (This is now done in SQLCOM_SHOW_STATUS part in mysql_execute_command())
sql/sql_show.cc:
  Remove orig_sql_command
  Only change sql_command during 'open_normal_and_derived_tables()' (for views) and not for the full duration of generating data.
  Changed 'show status' to use thd->initial_status_var to ensure that the current statement is not affecting the to-be-used values.
  Use thd->fill_information_schema_tables() instead of 'thd->fill_derived_tables()' as the later wrongly checks the value of sql_command.
sql/sql_yacc.yy:
  Remove usage of orig_sql_command.
  One side effect of this is that we need to test for cursors if the current command is a SELECT or a SHOW command.
sql/structs.h:
  Updated comment
 2006-06-20 13:20:32 +03:00
unknown
124cb126fa * Bug #9676: INSERT INTO x SELECT .. FROM x LIMIT 1; slows down with big 
tables
Currently in INSERT ... SELECT ... LIMIT ... the compiler uses a 
temporary table to store the results of SELECT ... LIMIT .. and then
uses that table as a source for INSERT. The problem is that in some cases
it actually skips the LIMIT clause in doing that and materializes the 
whole SELECT result set regardless of the LIMIT.
This fix is limiting the process of filling up the temp table with only 
that much rows that will be actually used by propagating the LIMIT value.


mysql-test/r/insert_select.result:
  * Bug #9676: INSERT INTO x SELECT .. FROM x LIMIT 1; slows down with big
                tables
  - a test demonstrating the code path
mysql-test/t/insert_select.test:
  * Bug #9676: INSERT INTO x SELECT .. FROM x LIMIT 1; slows down with big
                tables
  - a test demonstrating the code path
sql/sql_select.cc:
  * Bug #9676: INSERT INTO x SELECT .. FROM x LIMIT 1; slows down with big
                tables
  - pass through the real LIMIT number if the temp table is created for
    buffering results.
  - set the counter for all the cases when the temp table is not used for
    grouping
 2006-06-19 13:22:42 +03:00
unknown
610b1a4ebd Manually merged 
configure.in:
  Auto merged
client/mysqlbinlog.cc:
  Auto merged
mysql-test/mysql-test-run.pl:
  Auto merged
mysql-test/r/archive.result:
  Auto merged
mysql-test/r/auto_increment.result:
  Auto merged
mysql-test/r/cast.result:
  Auto merged
mysql-test/r/ctype_utf8.result:
  Auto merged
mysql-test/r/func_group.result:
  Auto merged
mysql-test/r/func_str.result:
  Auto merged
mysql-test/r/func_time.result:
  Auto merged
mysql-test/r/multi_update.result:
  Auto merged
mysql-test/r/ndb_lock.result:
  Auto merged
mysql-test/r/replace.result:
  Auto merged
mysql-test/r/union.result:
  Auto merged
mysql-test/t/archive.test:
  Auto merged
mysql-test/t/auto_increment.test:
  Auto merged
mysql-test/t/delayed.test:
  Auto merged
mysql-test/t/func_time.test:
  Auto merged
mysql-test/t/multi_update.test:
  Auto merged
mysql-test/t/ndb_lock.test:
  Auto merged
mysql-test/t/select.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/opt_range.cc:
  Auto merged
sql/opt_sum.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_select.h:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/structs.h:
  Auto merged
storage/archive/ha_archive.cc:
  Auto merged
tests/mysql_client_test.c:
  Auto merged
 2006-06-18 14:56:35 +04:00
unknown
2ef66fcaa0 Merge spetrunia@bk-internal.mysql.com:/home/bk/mysql-5.1 
into mysql.com:/home/psergey/mysql-5.1-bug19684


sql/opt_range.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
 2006-06-09 20:38:53 +04:00
unknown
027d90bc58 BUG#19684: Garbage in 'partitions' column in EXPLAIN output: 
In select_describe(), make the String object that holds the value of 
"partitions" column to "own" the value buffer, so the buffer isn't
prematurely freed.
[this is the second attempt with review fixes]


mysql-test/r/partition_pruning.result:
  BUG#19684: Testcase
mysql-test/t/partition_pruning.test:
  BUG#19684: Testcase
sql/sql_select.cc:
  BUG#19684: Garbage in 'partitions' column in EXPLAIN output:
  - Added comment
  - Make the String object that holds the value of "partitions" column
    to "own" the value buffer, so the buffer isn't prematurely freed.
 2006-06-05 15:15:28 +04:00
unknown
6c3babe52c After merge fixes 
Remove compiler warnings


mysql-test/extra/binlog_tests/mix_innodb_myisam_binlog.test:
  Fixed regex to get rid of xid= in output
mysql-test/r/mysqlcheck.result:
  Drop client_test_db if mysql_client_test fails
mysql-test/t/mysqlcheck.test:
  Drop client_test_db if mysql_client_test fails
mysql-test/t/mysqldump.test:
  Use --defaults-file instead of --defaults-extra-file to avoid reading my.cnf files
sql/event_scheduler.cc:
  Remove compiler warnings
sql/ha_partition.cc:
  Don't divide with 0 when checking current auto_increment value
sql/handler.cc:
  After merge fix
sql/mysqld.cc:
  Remove comiler warning
sql/partition_info.cc:
  After merge fix
  Fixed memory reference overrun for some wrong partition definitions
sql/sql_base.cc:
  After merge fix
  Always set *leaves in setup_tables_and_check_access() (assume argument is always given).
sql/sql_select.cc:
  Simple optimization
sql/sql_show.cc:
  Remove compiler warning
sql/sql_table.cc:
  After merge fix
storage/csv/ha_tina.cc:
  Ensure table maps are restored properly
storage/ndb/include/ndbapi/Ndb.hpp:
  Remove compiler warning
 2006-06-05 06:16:08 +03:00
unknown
555eb848f2 Merge bk-internal.mysql.com:/home/bk/mysql-5.1-new 
into  mysql.com:/home/my/mysql-5.1


BitKeeper/etc/ignore:
  auto-union
include/heap.h:
  Auto merged
include/my_base.h:
  Auto merged
include/mysql_com.h:
  Auto merged
mysql-test/mysql-test-run.pl:
  Auto merged
mysql-test/mysql-test-run.sh:
  Auto merged
mysql-test/extra/binlog_tests/mix_innodb_myisam_binlog.test:
  Auto merged
mysql-test/r/binlog_stm_mix_innodb_myisam.result:
  Auto merged
mysql-test/r/func_time.result:
  Auto merged
mysql-test/r/ndb_index_unique.result:
  Auto merged
mysql-test/t/func_time.test:
  Auto merged
mysql-test/t/view_grant.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/field.h:
  Auto merged
sql/ha_berkeley.cc:
  Auto merged
sql/ha_berkeley.h:
  Auto merged
mysql-test/r/view_grant.result:
  Auto merged
sql/ha_federated.cc:
  Auto merged
sql/ha_federated.h:
  Auto merged
sql/ha_heap.h:
  Auto merged
sql/ha_innodb.cc:
  Auto merged
sql/ha_innodb.h:
  Auto merged
sql/ha_myisam.h:
  Auto merged
sql/ha_myisammrg.cc:
  Auto merged
sql/ha_ndbcluster.h:
  Auto merged
sql/ha_partition.h:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_func.h:
  Auto merged
sql/item_strfunc.h:
  Auto merged
sql/item_subselect.cc:
  Auto merged
sql/item_subselect.h:
  Auto merged
sql/log.cc:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sp.cc:
  Auto merged
sql/sp_head.cc:
  Auto merged
sql/spatial.cc:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_bitmap.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_partition.cc:
  Auto merged
sql/sql_plugin.cc:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/share/errmsg.txt:
  Auto merged
sql/sql_handler.cc:
  Auto merged
sql/sql_view.cc:
  Auto merged
sql/table.h:
  Auto merged
storage/archive/ha_archive.cc:
  Auto merged
storage/archive/ha_archive.h:
  Auto merged
storage/example/ha_example.cc:
  Auto merged
storage/myisam/ft_boolean_search.c:
  Auto merged
unittest/mysys/base64-t.c:
  Auto merged
mysql-test/r/innodb_mysql.result:
  manual merge
mysql-test/t/innodb_mysql.test:
  manual merge
mysql-test/valgrind.supp:
  manual merge
sql/event.cc:
  manual merge
sql/ha_heap.cc:
  manual merge
sql/ha_myisam.cc:
  manual merge
sql/ha_ndbcluster.cc:
  manual merge
sql/ha_ndbcluster_binlog.cc:
  manual merge
sql/ha_partition.cc:
  manual merge
sql/handler.cc:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
sql/handler.h:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
sql/item.h:
  automatic merge
sql/item_cmpfunc.cc:
  automatic merge
sql/log_event.cc:
  manual merge
  Trivial cleanup
sql/mysql_priv.h:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
sql/opt_range.cc:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
sql/sql_delete.cc:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
sql/sql_insert.cc:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
sql/sql_load.cc:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
sql/sql_select.cc:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
sql/sql_show.cc:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
sql/sql_table.cc:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
sql/sql_update.cc:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
sql/table.cc:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
storage/blackhole/ha_blackhole.cc:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
storage/csv/ha_tina.cc:
  manual merge
  renamed print_key_dupp_error to print_key_dup_error
mysql-test/valgrind.supp.orig:
  Manual merge
 2006-06-04 21:05:22 +03:00
unknown
01d03e7b4b This changeset is largely a handler cleanup changeset (WL#3281), but includes fixes and cleanups that was found necessary while testing the handler changes 
Changes that requires code changes in other code of other storage engines.
(Note that all changes are very straightforward and one should find all issues
by compiling a --debug build and fixing all compiler errors and all
asserts in field.cc while running the test suite),

- New optional handler function introduced: reset()
  This is called after every DML statement to make it easy for a handler to
  statement specific cleanups.
  (The only case it's not called is if force the file to be closed)

- handler::extra(HA_EXTRA_RESET) is removed. Code that was there before
  should be moved to handler::reset()

- table->read_set contains a bitmap over all columns that are needed
  in the query.  read_row() and similar functions only needs to read these
  columns
- table->write_set contains a bitmap over all columns that will be updated
  in the query. write_row() and update_row() only needs to update these
  columns.
  The above bitmaps should now be up to date in all context
  (including ALTER TABLE, filesort()).

  The handler is informed of any changes to the bitmap after
  fix_fields() by calling the virtual function
  handler::column_bitmaps_signal(). If the handler does caching of
  these bitmaps (instead of using table->read_set, table->write_set),
  it should redo the caching in this code. as the signal() may be sent
  several times, it's probably best to set a variable in the signal
  and redo the caching on read_row() / write_row() if the variable was
  set.

- Removed the read_set and write_set bitmap objects from the handler class

- Removed all column bit handling functions from the handler class.
  (Now one instead uses the normal bitmap functions in my_bitmap.c instead
  of handler dedicated bitmap functions)

- field->query_id is removed. One should instead instead check
  table->read_set and table->write_set if a field is used in the query.

- handler::extra(HA_EXTRA_RETRIVE_ALL_COLS) and
  handler::extra(HA_EXTRA_RETRIEVE_PRIMARY_KEY) are removed. One should now
  instead use table->read_set to check for which columns to retrieve.

- If a handler needs to call Field->val() or Field->store() on columns
  that are not used in the query, one should install a temporary
  all-columns-used map while doing so. For this, we provide the following
  functions:

  my_bitmap_map *old_map= dbug_tmp_use_all_columns(table, table->read_set);
  field->val();
  dbug_tmp_restore_column_map(table->read_set, old_map);

  and similar for the write map:

  my_bitmap_map *old_map= dbug_tmp_use_all_columns(table, table->write_set);
  field->val();
  dbug_tmp_restore_column_map(table->write_set, old_map);

  If this is not done, you will sooner or later hit a DBUG_ASSERT
  in the field store() / val() functions.
  (For not DBUG binaries, the dbug_tmp_restore_column_map() and
  dbug_tmp_restore_column_map() are inline dummy functions and should
  be optimized away be the compiler).

- If one needs to temporary set the column map for all binaries (and not
  just to avoid the DBUG_ASSERT() in the Field::store() / Field::val()
  methods) one should use the functions tmp_use_all_columns() and
  tmp_restore_column_map() instead of the above dbug_ variants.

- All 'status' fields in the handler base class (like records,
  data_file_length etc) are now stored in a 'stats' struct. This makes
  it easier to know what status variables are provided by the base
  handler.  This requires some trivial variable names in the extra()
  function.

- New virtual function handler::records().  This is called to optimize
  COUNT(*) if (handler::table_flags() & HA_HAS_RECORDS()) is true.
  (stats.records is not supposed to be an exact value. It's only has to
  be 'reasonable enough' for the optimizer to be able to choose a good
  optimization path).

- Non virtual handler::init() function added for caching of virtual
  constants from engine.

- Removed has_transactions() virtual method. Now one should instead return
  HA_NO_TRANSACTIONS in table_flags() if the table handler DOES NOT support
  transactions.

- The 'xxxx_create_handler()' function now has a MEM_ROOT_root argument
  that is to be used with 'new handler_name()' to allocate the handler
  in the right area.  The xxxx_create_handler() function is also
  responsible for any initialization of the object before returning.

  For example, one should change:

  static handler *myisam_create_handler(TABLE_SHARE *table)
  {
    return new ha_myisam(table);
  }

  ->

  static handler *myisam_create_handler(TABLE_SHARE *table, MEM_ROOT *mem_root)
  {
    return new (mem_root) ha_myisam(table);
  }

- New optional virtual function: use_hidden_primary_key().
  This is called in case of an update/delete when
  (table_flags() and HA_PRIMARY_KEY_REQUIRED_FOR_DELETE) is defined
  but we don't have a primary key. This allows the handler to take precisions
  in remembering any hidden primary key to able to update/delete any
  found row. The default handler marks all columns to be read.

- handler::table_flags() now returns a ulonglong (to allow for more flags).

- New/changed table_flags()
  - HA_HAS_RECORDS	    Set if ::records() is supported
  - HA_NO_TRANSACTIONS	    Set if engine doesn't support transactions
  - HA_PRIMARY_KEY_REQUIRED_FOR_DELETE
                            Set if we should mark all primary key columns for
			    read when reading rows as part of a DELETE
			    statement. If there is no primary key,
			    all columns are marked for read.
  - HA_PARTIAL_COLUMN_READ  Set if engine will not read all columns in some
			    cases (based on table->read_set)
 - HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS
   			    Renamed to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION.
 - HA_DUPP_POS              Renamed to HA_DUPLICATE_POS
 - HA_REQUIRES_KEY_COLUMNS_FOR_DELETE
			    Set this if we should mark ALL key columns for
			    read when when reading rows as part of a DELETE
			    statement. In case of an update we will mark
			    all keys for read for which key part changed
			    value.
  - HA_STATS_RECORDS_IS_EXACT
			     Set this if stats.records is exact.
			     (This saves us some extra records() calls
			     when optimizing COUNT(*))
			    

- Removed table_flags()
  - HA_NOT_EXACT_COUNT     Now one should instead use HA_HAS_RECORDS if
			   handler::records() gives an exact count() and
			   HA_STATS_RECORDS_IS_EXACT if stats.records is exact.
  - HA_READ_RND_SAME	   Removed (no one supported this one)

- Removed not needed functions ha_retrieve_all_cols() and ha_retrieve_all_pk()

- Renamed handler::dupp_pos to handler::dup_pos

- Removed not used variable handler::sortkey


Upper level handler changes:

- ha_reset() now does some overall checks and calls ::reset()
- ha_table_flags() added. This is a cached version of table_flags(). The
  cache is updated on engine creation time and updated on open.


MySQL level changes (not obvious from the above):

- DBUG_ASSERT() added to check that column usage matches what is set
  in the column usage bit maps. (This found a LOT of bugs in current
  column marking code).

- In 5.1 before, all used columns was marked in read_set and only updated
  columns was marked in write_set. Now we only mark columns for which we
  need a value in read_set.

- Column bitmaps are created in open_binary_frm() and open_table_from_share().
  (Before this was in table.cc)

- handler::table_flags() calls are replaced with handler::ha_table_flags()

- For calling field->val() you must have the corresponding bit set in
  table->read_set. For calling field->store() you must have the
  corresponding bit set in table->write_set. (There are asserts in
  all store()/val() functions to catch wrong usage)

- thd->set_query_id is renamed to thd->mark_used_columns and instead
  of setting this to an integer value, this has now the values:
  MARK_COLUMNS_NONE, MARK_COLUMNS_READ, MARK_COLUMNS_WRITE
  Changed also all variables named 'set_query_id' to mark_used_columns.

- In filesort() we now inform the handler of exactly which columns are needed
  doing the sort and choosing the rows.

- The TABLE_SHARE object has a 'all_set' column bitmap one can use
  when one needs a column bitmap with all columns set.
  (This is used for table->use_all_columns() and other places)

- The TABLE object has 3 column bitmaps:
  - def_read_set     Default bitmap for columns to be read
  - def_write_set    Default bitmap for columns to be written
  - tmp_set          Can be used as a temporary bitmap when needed.
  The table object has also two pointer to bitmaps read_set and write_set
  that the handler should use to find out which columns are used in which way.

- count() optimization now calls handler::records() instead of using
  handler->stats.records (if (table_flags() & HA_HAS_RECORDS) is true).

- Added extra argument to Item::walk() to indicate if we should also
  traverse sub queries.

- Added TABLE parameter to cp_buffer_from_ref()

- Don't close tables created with CREATE ... SELECT but keep them in
  the table cache. (Faster usage of newly created tables).


New interfaces:

- table->clear_column_bitmaps() to initialize the bitmaps for tables
  at start of new statements.

- table->column_bitmaps_set() to set up new column bitmaps and signal
  the handler about this.

- table->column_bitmaps_set_no_signal() for some few cases where we need
  to setup new column bitmaps but don't signal the handler (as the handler
  has already been signaled about these before). Used for the momement
  only in opt_range.cc when doing ROR scans.

- table->use_all_columns() to install a bitmap where all columns are marked
  as use in the read and the write set.

- table->default_column_bitmaps() to install the normal read and write
  column bitmaps, but not signaling the handler about this.
  This is mainly used when creating TABLE instances.

- table->mark_columns_needed_for_delete(),
  table->mark_columns_needed_for_delete() and
  table->mark_columns_needed_for_insert() to allow us to put additional
  columns in column usage maps if handler so requires.
  (The handler indicates what it neads in handler->table_flags())

- table->prepare_for_position() to allow us to tell handler that it
  needs to read primary key parts to be able to store them in
  future table->position() calls.
  (This replaces the table->file->ha_retrieve_all_pk function)

- table->mark_auto_increment_column() to tell handler are going to update
  columns part of any auto_increment key.

- table->mark_columns_used_by_index() to mark all columns that is part of
  an index.  It will also send extra(HA_EXTRA_KEYREAD) to handler to allow
  it to quickly know that it only needs to read colums that are part
  of the key.  (The handler can also use the column map for detecting this,
  but simpler/faster handler can just monitor the extra() call).

- table->mark_columns_used_by_index_no_reset() to in addition to other columns,
  also mark all columns that is used by the given key.

- table->restore_column_maps_after_mark_index() to restore to default
  column maps after a call to table->mark_columns_used_by_index().

- New item function register_field_in_read_map(), for marking used columns
  in table->read_map. Used by filesort() to mark all used columns

- Maintain in TABLE->merge_keys set of all keys that are used in query.
  (Simplices some optimization loops)

- Maintain Field->part_of_key_not_clustered which is like Field->part_of_key
  but the field in the clustered key is not assumed to be part of all index.
  (used in opt_range.cc for faster loops)

-  dbug_tmp_use_all_columns(), dbug_tmp_restore_column_map()
   tmp_use_all_columns() and tmp_restore_column_map() functions to temporally
   mark all columns as usable.  The 'dbug_' version is primarily intended
   inside a handler when it wants to just call Field:store() & Field::val()
   functions, but don't need the column maps set for any other usage.
   (ie:: bitmap_is_set() is never called)

- We can't use compare_records() to skip updates for handlers that returns
  a partial column set and the read_set doesn't cover all columns in the
  write set. The reason for this is that if we have a column marked only for
  write we can't in the MySQL level know if the value changed or not.
  The reason this worked before was that MySQL marked all to be written
  columns as also to be read. The new 'optimal' bitmaps exposed this 'hidden
  bug'.

- open_table_from_share() does not anymore setup temporary MEM_ROOT
  object as a thread specific variable for the handler. Instead we
  send the to-be-used MEMROOT to get_new_handler().
  (Simpler, faster code)



Bugs fixed:

- Column marking was not done correctly in a lot of cases.
  (ALTER TABLE, when using triggers, auto_increment fields etc)
  (Could potentially result in wrong values inserted in table handlers
  relying on that the old column maps or field->set_query_id was correct)
  Especially when it comes to triggers, there may be cases where the
  old code would cause lost/wrong values for NDB and/or InnoDB tables.

- Split thd->options flag OPTION_STATUS_NO_TRANS_UPDATE to two flags:
  OPTION_STATUS_NO_TRANS_UPDATE and OPTION_KEEP_LOG.
  This allowed me to remove some wrong warnings about:
  "Some non-transactional changed tables couldn't be rolled back"

- Fixed handling of INSERT .. SELECT and CREATE ... SELECT that wrongly reset
  (thd->options & OPTION_STATUS_NO_TRANS_UPDATE) which caused us to loose
  some warnings about
  "Some non-transactional changed tables couldn't be rolled back")

- Fixed use of uninitialized memory in ha_ndbcluster.cc::delete_table()
  which could cause delete_table to report random failures.

- Fixed core dumps for some tests when running with --debug

- Added missing FN_LIBCHAR in mysql_rm_tmp_tables()
  (This has probably caused us to not properly remove temporary files after
  crash)

- slow_logs was not properly initialized, which could maybe cause
  extra/lost entries in slow log.

- If we get an duplicate row on insert, change column map to read and
  write all columns while retrying the operation. This is required by
  the definition of REPLACE and also ensures that fields that are only
  part of UPDATE are properly handled.  This fixed a bug in NDB and
  REPLACE where REPLACE wrongly copied some column values from the replaced
  row.

- For table handler that doesn't support NULL in keys, we would give an error
  when creating a primary key with NULL fields, even after the fields has been
  automaticly converted to NOT NULL.

- Creating a primary key on a SPATIAL key, would fail if field was not
  declared as NOT NULL.


Cleanups:

- Removed not used condition argument to setup_tables

- Removed not needed item function reset_query_id_processor().

- Field->add_index is removed. Now this is instead maintained in
  (field->flags & FIELD_IN_ADD_INDEX)

- Field->fieldnr is removed (use field->field_index instead)

- New argument to filesort() to indicate that it should return a set of
  row pointers (not used columns). This allowed me to remove some references
  to sql_command in filesort and should also enable us to return column
  results in some cases where we couldn't before.

- Changed column bitmap handling in opt_range.cc to be aligned with TABLE
  bitmap, which allowed me to use bitmap functions instead of looping over
  all fields to create some needed bitmaps. (Faster and smaller code)

- Broke up found too long lines

- Moved some variable declaration at start of function for better code
  readability.

- Removed some not used arguments from functions.
  (setup_fields(), mysql_prepare_insert_check_table())

- setup_fields() now takes an enum instead of an int for marking columns
   usage.

- For internal temporary tables, use handler::write_row(),
  handler::delete_row() and handler::update_row() instead of
  handler::ha_xxxx() for faster execution.

- Changed some constants to enum's and define's.

- Using separate column read and write sets allows for easier checking
  of timestamp field was set by statement.

- Remove calls to free_io_cache() as this is now done automaticly in ha_reset()

- Don't build table->normalized_path as this is now identical to table->path
  (after bar's fixes to convert filenames)

- Fixed some missed DBUG_PRINT(.."%lx") to use "0x%lx" to make it easier to
  do comparision with the 'convert-dbug-for-diff' tool.


Things left to do in 5.1:

- We wrongly log failed CREATE TABLE ... SELECT in some cases when using
  row based logging (as shown by testcase binlog_row_mix_innodb_myisam.result)
  Mats has promised to look into this.

- Test that my fix for CREATE TABLE ... SELECT is indeed correct.
  (I added several test cases for this, but in this case it's better that
  someone else also tests this throughly).
  Lars has promosed to do this.


BitKeeper/etc/ignore:
  added mysys/test_bitmap
include/base64.h:
  Removed my_global.h, as this must be included first in any program
include/heap.h:
  Added heap_reset() (Required by new handler interface)
include/my_base.h:
  Removed HA_EXTRA_RESET. MySQL will now call ::reset() instead of ::extra(HA_EXTRA_RESET).
  HA_EXTRA_RETRIVE_ALL_COLS and HA_EXTRA_RETRIVE_PRIMARY key are deleted as the column bitmaps makes these unnecessary
include/my_bitmap.h:
  Remove my_pthread.h (should be included at upper level)
  Introduced my_bitmap_map typedef to make it the bitmap handling more like a black box
  Added bitmap_is_overlapping(), bitmap_test_and_clear(), bitmap_copy() and bitmap_cmp()
  Made bitmap_set_bit(), bitmap_flip_bit(), bitmap_clear_bit() return void
include/myisam.h:
  Added mi_reset() (Required by new handler interface)
include/myisammrg.h:
  Added myrg_reset() (Required by new handler interface)
include/mysql_com.h:
  Added flag FIELD_IN_ADD_INDEX to be able to remove Field->add_index
mysql-test/extra/binlog_tests/mix_innodb_myisam_binlog.test:
  Added testing of CREATE ... SELECT in a mixed environment
  (This found some bugs that Mats is going to fix shortly)
mysql-test/install_test_db.sh:
  Simplify ldata usage
  Added --tmpdir=. option to mysqld bootstrap (Removed some warnings when TMPDIR was wrongly set)
mysql-test/mysql-test-run.pl:
  Added --tmpdir=. to bootstrap
mysql-test/mysql-test-run.sh:
  Use copy instead of INSTALL_DB for master and slave databases.
  (Speeds up startup time a lot!)
  Remove snapshot directories at startup (removes some strange warnings)
mysql-test/r/binlog_row_mix_innodb_myisam.result:
  Added testing of CREATE ... SELECT in a mixed environment
  (This found some bugs that Mats is going to fix shortly)
mysql-test/r/binlog_stm_mix_innodb_myisam.result:
  Added testing of CREATE ... SELECT in a mixed environment
mysql-test/r/create.result:
  Some extra tests of warnings and number of tables opened by CREATE ... SELECT
mysql-test/r/federated.result:
  Drop some left over tables
  Added testing of multiple table update and multiple table delete (with and without keys)
mysql-test/r/func_gconcat.result:
  Enable some disabled tests (converted them slightly to be predictable)
mysql-test/r/func_time.result:
  Added drop of test function
mysql-test/r/innodb_mysql.result:
  Added tests for CREATE ... SELECT
mysql-test/r/insert.result:
  More tests
  Added testing of duplicate columns in insert
mysql-test/r/loaddata.result:
  Added testing LOAD DATA ... SET ...
mysql-test/r/multi_update.result:
  Test multi updates and deletes using primary key and without
mysql-test/r/ndb_index_unique.result:
  Better error message
mysql-test/r/ndb_replace.result:
  New correct result after fixing REPLACE handling with NDB
mysql-test/r/rpl_ddl.result:
  Now we don't get these (wrong) warnings anymore
mysql-test/r/view_grant.result:
  Drop used views
mysql-test/t/create.test:
  Some extra tests of warnings and number of tables opened by CREATE ... SELECT
mysql-test/t/federated.test:
  Drop some left over tables
  Added testing of multiple table update and multiple table delete (with and without keys)
mysql-test/t/func_gconcat.test:
  Enable some disabled tests (converted them slightly to be predictable)
mysql-test/t/func_time.test:
  Added drop of test function
mysql-test/t/innodb_mysql.test:
  Added tests for CREATE ... SELECT
mysql-test/t/insert.test:
  More tests
  Added testing of duplicate columns in insert
mysql-test/t/loaddata.test:
  Added testing LOAD DATA ... SET ...
mysql-test/t/multi_update.test:
  Test multi updates and deletes using primary key and without
mysql-test/t/view_grant.test:
  Drop used views
mysql-test/valgrind.supp:
  Added supression of not needed warnings when printing stack trace
mysys/base64.c:
  Include my_global.h first
mysys/my_bitmap.c:
  Added bitmap_is_overlapping(), bitmap_test_and_clear() and bitmap_copy()
  Changed logic of bitmap handling to be a bit more efficent (Did this together with Mikael Ronström)
  Now the 'extra, not used bits' in the bitmap are assumed to have a 'random value' and the bitmap functions are free to change them whenever needed.
  Changed how mutex is allocated to make 'bitmap_free()' function simpler.
mysys/thr_lock.c:
  Added 0x before thread pointers (for easier comparison of DBUG traces)
sql/event.cc:
  Ensure 'use_all_columns()' is used for event tables
  Don't print warning that event table is damaged if it doesn't exists.
sql/field.cc:
  Added ASSERT_COLUMN_MARKED_FOR_WRITE in all store() methods and ASSERT_COLUMN_MARKED_FOR_READ in all val() methods to catch wrong setting if table->read_set and table->write_set
  (Rest of changes are only indentation cleanups)
sql/field.h:
  Removed Field->query_id (replaced by table->read_set and table->write_set)
  Removed Field->fieldnr (use Field->field_index instead)
  Removed Field->add_index (Use Field->flags instead)
  Add Field->part_of_key_not_clustered (for usage in opt_range.cc)
sql/filesort.cc:
  Added paramater sort_postion to filesort() to force sorting by position instead of storing all fields in the result set.
  This allowed me to remove checking of sql_command.
  Create a temporary column bitmap for fields that are used by the sorting process.
  Use column bitmaps instead of query_id
sql/ha_berkeley.cc:
  Update to 'newer' table handler interface
sql/ha_berkeley.h:
  Update to 'newer' table handler interface
sql/ha_federated.cc:
  Update to 'newer' table handler interface
  Only read columns that are needed from remote server.
  In case of eq ranges, don't generate two conditions in the WHERE clause
  (this can still be optimized, but would require a bigger code change)
  Use 'simpler to use' XXXX_LEN' macros
  A bit simpler logic in ::write_row() when creating statements.
  In update, only include test of fields actually read.
  (This greatly simplifies the queries sent by the federated engine)
  Similar changes done for delete_row()
sql/ha_federated.h:
  Update to 'newer' table handler interface
  Changed XXX_LEN macros to use sizeof(...)-1, to simplify usage in ha_federated.cc
  Added HA_PRIMARY_KEY_REQUIRED_FOR_DELETE to tell MySQL to read all primary key columns in case of DELETE
sql/ha_heap.cc:
  Update to 'newer' table handler interface
sql/ha_heap.h:
  Update to 'newer' table handler interface
sql/ha_innodb.cc:
  Update to 'newer' table handler interface
  - Update innobase_create_handler() to new interface
  - Removed HA_NOT_EXACT_COUNT (not needed)
  - Renamed HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION.
  - Prefixed base status variables with 'stats'
  - Use table column bitmaps instead of ha_get_bit_in_read_set()
  - Added ::reset(), with code from ::extra(HA_EXTRA_RESET)
  - Removed HA_EXTRA_RETRIVE_ALL_COLS and HA_EXTRA_RETRIEVE_PRIMARY_KEY as
    the table->read_set and table->write_set bitmaps now are accurate
sql/ha_innodb.h:
  Update to 'newer' table handler interface
  - table_flags are now ulonglong
  - Added reset() method
  - Removed not needed ha_retrieve_all_cols() and ha_retrieve_all_pk() columns.
  - Made build_template() a class function to be able to easier access class variables
sql/ha_myisam.cc:
  Update to 'newer' table handler interface
sql/ha_myisam.h:
  Update to 'newer' table handler interface
sql/ha_myisammrg.cc:
  Update to 'newer' table handler interface
sql/ha_myisammrg.h:
  Update to 'newer' table handler interface
sql/ha_ndbcluster.cc:
  Update to 'newer' table handler interface
  Fixed use_blob_value() to be accurate
  In ::complemented_read() we have to check both the read and write bitmap as the old code did mark all changed columns also in the read map
  Correct dumping of field data with DBUG_DUMP
  Prefix addresses in DBUG_PRINT with 0x
  Fixed usage of not initialized memory
  Update to use field->flags & FIELD_IN_ADD_INDEX instead of field->add_index.
sql/ha_ndbcluster.h:
  Update to 'newer' table handler interface
sql/ha_ndbcluster_binlog.cc:
  Mark usage of all columns in ndbcluster binlog tables
  false -> FALSE, true -> TRUE
  Use table->s->all_set instead of creating a temporary bitmap.
sql/ha_partition.cc:
  Update to 'newer' table handler interface
  Added memroot to initialise_partitions() and related functions to get faster memory allocation.
  partition_create_handler() is now responsible for initialisation of the partition object
  Some trivial optimizations and indentation fixes
  Ensure that table_flags() are up to date
  Removed documentation for removed HA_EXTRA flags
  Fixed 'strange' usage of m_file[i] in new_handlers_from_part_info()that worked in current code 'by chance'
sql/ha_partition.h:
  Update to 'newer' table handler interface
sql/handler.cc:
  create_xxx handler now takes MEMROOT as an argument to simplify memory allocation.
  Much simpler get_new_handler()
  (Initialization of the object is now handled by the create method for the engine)
  Moved all allocation of bitmap handling to the TABLE object (in table.cc)
  Added column_bitmaps_signal() to signal column usage changes.
  Changed binlog_log_row() to use the exiusting all_set bitmap in the table object.
  Added ha_reset() function to test that the file object is ok at end of statement and call handler::reset()
  Added use_hidden_primary_key() to signal handler that we we are going to read and update + delete the row and the handler should thus remember the position for the row
sql/handler.h:
  Added HA_NO_TRANSACTIONS, HA_PARTIAL_COLUMN_READ, HA_REQUIRES_KEY_COLUMNS_FOR_DELETE,HA_PRIMARY_KEY_REQUIRED_FOR_DELETE and HA_HAS_RECORDS
  Removed HA_NOT_EXACT_COUNT, HA_READ_RND_SAME
  HA_DUPP_POS -> HA_DUPLICATE_POS
  HA_NOT_EXACT_COUNT replaced by HA_STATS_RECORDS_IS_EXACT, HA_HAS_RECORDS and records()
  HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS renamed to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION
  Added future row type 'ROW_TYPE_PAGES'
  Added MEM_ROOT to handlerton 'create' function
  Added ha_statistics, a structure for all status variable in the base handler class.
  Moved all status variables in the handler class into a stats structs to improve readability.
  ha_table_flags() is now a cached (not virtual) version of table_flags()
  reset() doesn't anymore call extra(HA_EXTRA_RESET) but is a function of it's own.
  Renamed dupp_ref to dup_ref
  Renamed not used handler::sortkey
  Moved read_set and write_set to TABLE structure
  handler::init() function added for cacheing of virtual constants from engine.
sql/item.cc:
  Added register_field_in_read_map() for marking used columns in expression.
  This is used by filesort() for creating an optimal column bitmap while retrieving columns for sorting.
  Initalize value.cs_info.character_set_client to fix core dump bug with --debug
  set_query_id -> mark_used_columns
  Mark used columns in read_set OR write_set.
sql/item.h:
  Removed reset_query_id_processor() as it's not needed anymore.
  Added register_field_in_read_map()
  Added extra argument to Item::walk() to indicate if we should also
  traverse sub queries.
sql/item_cmpfunc.cc:
  Temporary mark used columns to be read/writable
  Update Item::walk to new interface
sql/item_cmpfunc.h:
  Added extra argument to Item::walk() to indicate if we should also traverse sub queries.
sql/item_func.cc:
  Update Item::walk() to new interface
  table_flags() -> ha_table_flags()
sql/item_func.h:
  Update Item::walk() to new interface
sql/item_row.cc:
  Update Item::walk() to new interface
sql/item_row.h:
  Update Item::walk() to new interface
sql/item_strfunc.h:
  Update Item::walk() to new interface
sql/item_subselect.cc:
  Added Item_subselect::walk()
  (It was a bug it was missing before. Not sure what kind of bugs this could have caused)
sql/item_subselect.h:
  Update Item::walk() to new interface
sql/item_sum.cc:
  Update Item::walk() to new interface
  Updates for new handler interace
sql/item_sum.h:
  Update Item::walk() to new interface
sql/key.cc:
  Updates for new handler interace
sql/log.cc:
  Mark all columns used for log tables
  Split options flag
  Ensured that second argument to trans_register_ha is a bool
sql/log_event.cc:
  Fixed comments to be withing 79 characters
  Use OPTION_KEEP_LOG instead of OPTION_STATUS_NO_TRANS_UPDATE to remove wrong warnings
  Updates for new handler interface
  Use 0x%lx instead of %p (portability problem)
sql/mysql_priv.h:
  Added OPTION_KEEP_LOG to indicate that we should replicate the binlog even on rollback
  Removed not used 'conds' argument to setup_tables
sql/mysqld.cc:
  Indentation fixes and removed old comment
sql/opt_range.cc:
  Update to new handler and bitmap interface.
  Fixed calls to cp_buffer_from_ref() and walk() (new argument).
  Create new temporary bitmaps for ror scans.
  (Needed because of handler changes and to get more accurate column bitmaps than before)
  Remove not needed file->ha_reset() call before file->close().
  Some trivial optimization and indentation fixes.
  Use Field->part_of_key_not_clustered() to check if field is part of a key, instead of looping over all key parts.
  
  Added flag 'in_ror_merged_scan' to allow ::get_next() to know that we need a special column bitmap to only fetch pointer to record.
  This is needed because ror scan uses the same TABLE object but different file objects, which creates problem for the column bitmap handling.
  (This is a temporary solution. A better one would be to allocate an own TABLE object for ROR scans)
  
  Optimized bitmap handling in ror scans:
  - Start bitmap at position 0, not 1
  - Use same bitmap size as in TABLE
  - Use table->read_set and table->write_set to create column bitmaps instead of looping over all fields in table
sql/opt_range.h:
  Added 'in_ror_merged_scan' to indicate if we are doing a ROR scan
  Added temporary column bitmaps used in ROR scans
sql/opt_sum.cc:
  Added get_ext_record_count() which is used in COUNT() optimization if handler has HA_HAS_RECORDS
  Note that we don't call this if handler has HA_STATS_RECORDS_IS_EXACT set.
sql/protocol.cc:
  We need to mark columns as readable in ::store() as we sometimes return default value for fields to the user
sql/records.cc:
  Updates for new handler interface
sql/set_var.cc:
  Handle splitting OPTION_STATUS_NO_TRANS_UPDATE to two flags
sql/share/errmsg.txt:
  Fixed wrong
sql/sp.cc:
  Mark that we are using all columns for the proc table
  Update call to setup_tables() to use new prototype
sql/sp_head.cc:
  Removed QQ comment
sql/spatial.cc:
  Removed wrong QQ comment
sql/sql_acl.cc:
  Mark that we need all columns for acl tables
  Supply memroot to some 'new' calls.
  Indentation fixes
sql/sql_base.cc:
  set_query_id removed
  Ensure we call ha_reset() at end of each statement
  Mark read columns in read_set and changed columns in write_set (Before all columns was marked in read set)
  Fixed marking of some columns that was not proplerly marked before
  Maintain in TABLE->merge_keys set of all keys that are used in some way
  Removed not used 'conds' argument from setup_tables()
  Remove not used setting of 'dupp_field' in insert_fields()
  Added missing FN_LIBCHAR in mysql_rm_tmp_tables()
  (This has probably caused us to not properly remove temporary files after crash)
sql/sql_bitmap.h:
  Added is_overlapping()
sql/sql_class.cc:
  Slow_logs was not properly initialized, which could maybe cause extra/lost entries in slow log.
  set_query_id -> mark_used_columns
  Simpler variable usage in pack_row()  (cleanup)
  Moved some variable declartion at start of function for better code readability
sql/sql_class.h:
  Added enum_mark_columns
  Updated comments
  Renamed dupp_field -> dup_field
  Added virtual function 'can_rollback_data()' to select_insert() to be used in CREATE ... SELECT to optimize use of OPTION_STATUS_NO_TRANS_UPDATE.
  (This fixes a bug in CREATE ... SELECT where we did give wrong warnings when using non transacational tables)
sql/sql_delete.cc:
  Updates to new handler interface
  Call table->mark_columns_needed_for_delete() to allow us to put additional columns in column usage maps if handler so requires.
  Call table->prepare_for_position() to tell handler that we are going to call ha_position().
  Removed call to free_io_cache(). (io_cache is now removed in ha_reset()).
  Fixed calls to setup_tables()
sql/sql_do.cc:
  Update call to setup_fields()
sql/sql_handler.cc:
  Tell handler tables to always read all columns.
  Use temporary column map when storing value in field for later index usage
sql/sql_help.cc:
  Makr all used fields to be read
  Update call to setup_fields()
sql/sql_insert.cc:
  Tell handler we are going to update the auto_increment column
  dupp_field -> dup_field
  Set column usage bits for timestamp field.
  Call table->mark_columns_needed_for_insert() and table->mark_auto_increment_column()
  Removed not used argument from mysql_prepare_insert_check_table().
  
  If we get an duplicate row on insert, change column map to read and write all columns while retrying the operatation.
  This is required by the definition of REPLACE and also ensures that fields that are only part of UPDATE are properly handled.
  This fixed a bug in NDB and REPLACE where REPLACE wrongly copied some column values from the replaced row.
  
  Setup new bitmaps for delayed insert rows
  Remove reseting of next_number_fields as it will be reset on next call to handler_insert()
  
  Fixed usage of thd->options and OPTION_STATUS_NO_TRANS_UPDATE.
  The issue was that one should not to reset this flag as it may be set by a previous statement.
  The way it was now used caused us to loose some warnings and get other wrong warnings when using non transactional tables mixed with transactional.
  I fixed it by introducing 'select_insert::can_rollback_data' to inform send_error() that the given statement can be rolled back (which in case of CREATE TABLE can always be done)
  Don't close tables created with CREATE ... SELECT but keep them in the table cache.
  
  Moved out MY_HOOKS from inside function (better readability)
sql/sql_load.cc:
  Update to use new handler and column marking interface
  Update using setup_tables()
sql/sql_olap.cc:
  Update calls to setup_tables
  Use enums instead of constants to setup_fields()
sql/sql_parse.cc:
  Handle OPTION_KEEP_LOG:
  - Set it on CREATE TEMPORARY TABLE / DROP TABLE
  - Reset it when OPTION_STATUS_NO_TRANS_UPDATE is reset
  - Don't set it for CREATE ... SELECT (this is handled in select_create class)
  Remove reseting of OPTION_STATUS_NO_TRANS_UPDATE in begin_trans() as this should already be reset.
  If in autocommit mode, reset OPTION_KEEP_LOG and OPTION_STATUS_NO_TRANS_UPDATE to not give warnings in future commands
sql/sql_partition.cc:
  Update walk() usage
  Trivial indentation fixes
sql/sql_plugin.cc:
  Mark all columns as used for plugins
sql/sql_prepare.cc:
  Added assert to find out hidden bugs in character_set_client (got an error in debug binary when this not set correctly)
  Updates for new handler interface
  Update calls to setup_fields()
sql/sql_repl.cc:
  Indentation fixes
sql/sql_select.cc:
  Update call to setup_tables() and setup_fields()
  Remove some old disabled code
  Update to new hadler interface
  Indentation cleanups
  Added column bitmaps for temporary tables.
  Remove updating of the removed slots in the Field class
  Added TABLE argument to cp_buffer_from_ref() (To be able to install temporary column maps)
  For internal temporary tables, use handler::write_row(), handler::delete_row() and handler::update_row() instead of handler::ha_xxxx() for faster execution.
sql/sql_select.h:
  Indentaition fixes.
  Install temporary column usage maps when needed
  Added TABLE element to cp_buffer_from_ref()
sql/sql_show.cc:
  Update to new handler interface
  Mark all columns used for internal tables.
  Style fixes.
  Added support for 'future' ROW_TYPE_PAGES.
  Don't allocate TMP_TABLE_PARAM with calloc. The 'init()' function will initialize the structure properly.
sql/sql_table.cc:
  Update to new handler interface
  Simple my_snprintf -> strmake()
  Changed some constants to defines
  Don't test for NULL in primary key (as we a couple of line above force the PRIMARY KEY to be NOT NULL)
  Change field->add_index to use field->flags & FIELD_IN_ADD_INDEX
  Mark all columns as used for ALTER TABLE
  Style fixes
  Update call to filesort()
sql/sql_trigger.h:
  Added friend functions to be able to test if triggers exists for table we are going to insert/update or delete in.
sql/sql_udf.cc:
  Mark all columns as used for udf system table.
sql/sql_union.cc:
  Update call to walk()
  Update to new handler interface
sql/sql_update.cc:
  Remove query_id argument from compare_record()
  Use column bitmaps instead of query_id.
  We can't use compare_records() to skip updates for handlers that returns a partial column set and the read_set doesn't cover all columns in the write set, because compare_record() can't in this case know if a not read column changed value.
  Update call to setup_fields()
  Using separate column read and write sets allows for easier checking of timestamp field was set by statement.
  Removed call to free_io_cache() as this is now done in ha_reset()
  Call table->mark_columns_needed_for_update() and table->prepare_for_position()
  Style fixes
sql/sql_view.cc:
  Style fixes
sql/table.cc:
  Remove implicitely include 'errno.h'
  Remove code for building normalized path, as this is now identical to 'path'
  Remove field->fieldnr
  Added update of field->part_of_key_not_clustered()
  Create column bitmaps in TABLE and TABLE_SHARE
  Don't setup a temporary MEM_ROOT object as a thread specific variable for the handler. Instead we send the to-be-used MEMROOT to get_new_handler()
  Update to new handler interface
  Update call to walk()
  Added new functions:
  - st_table::clear_column_bitmaps()
  - st_table::prepare_for_position()
  - st_table::mark_columns_used_by_index()
  - st_table::restore_column_maps_after_mark_index()
  - st_table::mark_columns_used_by_index_no_reset()
  - st_table::mark_auto_increment_column()
  - st_table::mark_columns_needed_for_delete()
  - st_table::mark_columns_needed_for_update()
  - st_table::mark_columns_needed_for_insert()
sql/table.h:
  Moved column usage bitmaps from handler to TABLE
  Added to TABLE_SHARE all_set and column_bitmap_size
  Added to TABLE merge_keys, bitmap_init_values, def_read_set, def_write_set, tmp_set, read_set and write_set.
  Declared all new table column bitmap functions
  Added TABLE functions column_bitmaps_set(), column_bitmaps_set_no_signal(), use_all_columns() and default_column_bitmaps()
  Added functions: tmp_use_all_columns() and tmp_restore_column_map() to temporarly switch column bitmaps
  Added functions: dbug_tmp_use_all_columns() and dbug_tmp_restore_column_map() to temporarly switch column bitmaps to avoid asserts in Field::store() and Field::val().
sql/tztime.cc:
  Mark all columns as used for timezone tables
storage/archive/ha_archive.cc:
  Update to new handler interface
storage/archive/ha_archive.h:
  Update to new handler interface
storage/blackhole/ha_blackhole.cc:
  Update to new handler interface
storage/blackhole/ha_blackhole.h:
  Update to new handler interface
  removed not needed flag HA_DUPP_POS
storage/csv/ha_tina.cc:
  Update to new handler interface
storage/csv/ha_tina.h:
  Update to new handler interface
storage/example/ha_example.cc:
  Update to new handler interface
storage/example/ha_example.h:
  Update to new handler interface
storage/heap/hp_extra.c:
  Added heap_reset() (Required by new handler interface)
storage/heap/hp_test2.c:
  Use heap_reset()
storage/myisam/ft_boolean_search.c:
  Fixed compiler warning
storage/myisam/mi_extra.c:
  Added mi_reset() (Required by new handler interface)
storage/myisam/mi_search.c:
  Fixed DBUG_PRINT messages to use 0x%lx instead of %lx
storage/myisam/mi_test2.c:
  Use mi_reset()
storage/myisam/myisampack.c:
  Use mi_reset()
storage/myisammrg/myrg_extra.c:
  Added myrg_reset() (Required by new handler interface)
unittest/mysys/base64.t.c:
  Include my_global.h
  Don't include implictely include file 'stdlib.h'
 2006-06-04 18:52:22 +03:00
unknown
5fd2a35032 Merge rurik.mysql.com:/home/igor/mysql-4.1-opt 
into  rurik.mysql.com:/home/igor/mysql-5.0-opt


sql/opt_sum.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_select.h:
  Auto merged
mysql-test/r/func_group.result:
  SCCS merged
mysql-test/t/func_group.test:
  SCCS merged
 2006-06-02 17:06:10 -07:00
unknown
e3e0658779 Fixed bug #18206. 
The bug report revealed two problems related to min/max optimization:
1. If the length of a constant key used in a SARGable condition for
for the MIN/MAX fields is greater than the length of the field an 
unwanted warning on key truncation is issued;
2. If MIN/MAX optimization is applied to a partial index, like INDEX(b(4))
than can lead to returning a wrong result set.


mysql-test/r/func_group.result:
  Added test cases for bug #18206.
mysql-test/t/func_group.test:
  Added test cases for bug #18206.
sql/opt_sum.cc:
  Fixed bug #18206.
  Suppressed the warning about data truncation when store_val_in_field
  was used to store keys for the field used in MIN/MAX optimization.
  Blocked MIN/MAX optimization for partial keys, such as in INDEX(b(4)).
sql/sql_select.cc:
  Fixed bug #18206.
  Added a parameter for the function store_val_in_field allowing to
  control setting warnings about data truncation in the function.
sql/sql_select.h:
  Fixed bug #18206.
  Added a parameter for the function store_val_in_field allowing to
  control setting warnings about data truncation in the function.
 2006-06-02 14:14:57 -07:00
unknown
78e288b4a7 Merge gbichot@bk-internal.mysql.com:/home/bk/mysql-5.1-new 
into  mysql.com:/home/mysql_src/mysql-5.1-new-WL3146-handler


sql/ha_berkeley.cc:
  Auto merged
sql/ha_berkeley.h:
  Auto merged
sql/ha_heap.cc:
  Auto merged
sql/ha_innodb.cc:
  Auto merged
sql/ha_innodb.h:
  Auto merged
sql/ha_myisam.cc:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/ha_ndbcluster.h:
  Auto merged
sql/ha_partition.cc:
  Auto merged
sql/handler.cc:
  Auto merged
sql/handler.h:
  Auto merged
sql/log.cc:
  Auto merged
sql/log_event.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_load.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
storage/archive/ha_archive.cc:
  Auto merged
storage/archive/ha_archive.h:
  Auto merged
 2006-06-02 22:22:59 +02:00
unknown
e63f3779d4 First push for WL#3146 "less locking in auto_increment". It is a 0-real-change patch. 
New prototype for get_auto_increment() (but new arguments not yet used), to be able
to reserve a finite interval of auto_increment values from cooperating engines.
A hint on how many values to reserve is found in handler::estimation_rows_to_insert,
filled by ha_start_bulk_insert(), new wrapper around start_bulk_insert().
NOTE: this patch changes nothing, for all engines. But it makes the API ready for those
engines which will want to do reservation.
More csets will come to complete WL#3146.


sql/ha_berkeley.cc:
  update to new prototype of get_auto_increment
sql/ha_berkeley.h:
  update to new prototype of get_auto_increment
sql/ha_heap.cc:
  update to new prototype of get_auto_increment
sql/ha_heap.h:
  update to new prototype of get_auto_increment
sql/ha_innodb.cc:
  update to new prototype of get_auto_increment
sql/ha_innodb.h:
  update to new prototype of get_auto_increment
sql/ha_myisam.cc:
  update to new prototype of get_auto_increment
sql/ha_myisam.h:
  update to new prototype of get_auto_increment
sql/ha_ndbcluster.cc:
  update to new prototype of get_auto_increment
sql/ha_ndbcluster.h:
  update to new prototype of get_auto_increment
sql/ha_partition.cc:
  update to new prototype of get_auto_increment
sql/ha_partition.h:
  update to new prototype of get_auto_increment
sql/handler.cc:
  new prototype of get_auto_increment, comments, preparation for when the MySQL layer is capable
  of getting finite auto_increment intervals from cooperating engines.
sql/handler.h:
  a wrapper around start_bulk_insert(): ha_bulk_insert(), which stores the argument (number
  of rows expected for insertion) into a member of handler: estimation_rows_to_insert.
  This member will soon be used to decide how much auto_increment values we want to reserve
  from cooperating engines.
  New prototype for get_auto_increment, preparing for cooperating engines to reserve finite auto_increment
  intervals.
  release_auto_increment() will be used by the MySQL layer to inform the engine that it has
  not used all of the interval (engine can reclaim it).
sql/log.cc:
  note for the future
sql/log_event.cc:
  name of wrapper
sql/sql_insert.cc:
  name of wrapper. When done with inserting, return unused auto_inc values to engine.
sql/sql_load.cc:
  name of wrapper. When done with inserting, return unused auto_inc values to engine.
sql/sql_select.cc:
  name of wrapper
sql/sql_table.cc:
  name of wrapper
storage/archive/ha_archive.cc:
  update to new prototype of get_auto_increment.
  Archive reserves only one value (Archive's god - Brian - told me that's the truth).
storage/archive/ha_archive.h:
  update to new prototype of get_auto_increment()
 2006-06-02 22:21:32 +02:00
unknown
ae26d2aa5a Merge a193-229-222-105.elisa-laajakaista.fi:/home/my/bk/mysql-5.0 
into  a193-229-222-105.elisa-laajakaista.fi:/home/my/bk/mysql-5.1-new


mysql-test/mysql-test-run.pl:
  Auto merged
mysql-test/mysql-test-run.sh:
  Auto merged
mysql-test/r/grant.result:
  Auto merged
mysql-test/r/heap_btree.result:
  Auto merged
mysql-test/r/information_schema_db.result:
  Auto merged
mysql-test/r/lock_multi.result:
  Auto merged
mysql-test/r/sp.result:
  Auto merged
mysql-test/r/subselect.result:
  Auto merged
mysql-test/r/view_grant.result:
  Auto merged
mysql-test/t/lock_multi.test:
  Auto merged
mysql-test/t/sp.test:
  Auto merged
mysql-test/t/view_grant.test:
  Auto merged
mysys/default.c:
  Auto merged
server-tools/instance-manager/guardian.cc:
  Auto merged
sql/field.h:
  Auto merged
sql/item.h:
  Auto merged
sql/item_subselect.cc:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/lock.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_delete.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_load.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_update.cc:
  Auto merged
sql/table.cc:
  Auto merged
storage/heap/hp_write.c:
  Auto merged
storage/ndb/src/ndbapi/DictCache.cpp:
  Auto merged
storage/ndb/src/ndbapi/DictCache.hpp:
  Auto merged
client/mysqlbinlog.cc:
  Manual merge from 5.0
client/mysqldump.c:
  Manual merge from 5.0
configure.in:
  Manual merge from 5.0
mysql-test/r/mysqldump.result:
  Manual merge from 5.0
mysql-test/t/mysqldump.test:
  Manual merge from 5.0
mysql-test/t/rpl_insert_id.test:
  Manual merge from 5.0
server-tools/instance-manager/manager.cc:
  Manual merge from 5.0
sql/field.cc:
  Manual merge from 5.0
sql/ha_ndbcluster.cc:
  Manual merge from 5.0
sql/mysqld.cc:
  Manual merge from 5.0
sql/sql_base.cc:
  Manual merge from 5.0
sql/sql_lex.cc:
  Manual merge from 5.0
sql/sql_select.cc:
  Manual merge from 5.0
sql/sql_table.cc:
  Manual merge from 5.0
 2006-05-30 16:07:49 +03:00
unknown
6386c5dfc0 Merge mysql.com:/home/kgeorge/mysql/5.0/clean 
into  mysql.com:/home/kgeorge/mysql/5.0/B18681


sql/mysql_priv.h:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
 2006-05-26 11:51:30 +03:00
unknown
d7743c41c6 BUG#18681: View privileges are broken 
The check for view security was lacking several points :
1. Check with the right set of permissions : for each table ref that
participates in a view there were the right credentials to use in it's
security_ctx member, but these weren't used for checking the credentials.
This makes hard enforcing the SQL SECURITY DEFINER|INVOKER property
consistently.
2. Because of the above the security checking for views was just ruled out
in explicit ways in several places.
3. The security was checked only for the columns of the tables that are
brought into the query from a view. So if there is no column reference
outside of the view definition it was not detecting the lack of access to
the tables in the view in SQL SECURITY INVOKER mode.

The fix below tries to fix the above 3 points.


mysql-test/r/grant.result:
  removed nondeterminism (unspecified order) in some test output
mysql-test/r/view_grant.result:
  Somewhat extended test case for the bug and similar queries.
mysql-test/t/grant.test:
  removed nondeterminism (unspecified order) in some test output
mysql-test/t/view_grant.test:
  Somewhat extended test case for the bug and similar queries.
sql/mysql_priv.h:
  A wrapper for setup_tables that also checks access to the tables
sql/sql_acl.cc:
  removed artificial security check stop and used the table ref's credentials.
sql/sql_base.cc:
  a wrapper for setup_tables to check access to the tables
sql/sql_delete.cc:
  wrapper called.
sql/sql_insert.cc:
  wrapper called
sql/sql_load.cc:
  wrapper called
sql/sql_parse.cc:
  wrapper called and artificial check stop removed
sql/sql_select.cc:
  wrapper called
sql/sql_update.cc:
  wrapper called
sql/table.cc:
  Mask table access to the view error as well.
 2006-05-26 11:47:53 +03:00
unknown
644efa51db after merge fix 
mysql-test/r/strict.result:
  Auto merged
mysql-test/r/type_ranges.result:
  Auto merged
mysql-test/t/strict.test:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
mysql-test/r/information_schema.result:
  manual merge
mysql-test/t/information_schema.test:
  manual merge
 2006-05-25 19:20:34 +05:00
unknown
5338b25813 sql_select.cc: 
After merge fix


sql/sql_select.cc:
  After merge fix
 2006-05-25 00:03:35 +04:00
unknown
5c398ce055 Manually merged 
mysql-test/r/view.result:
  Auto merged
mysql-test/t/view.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/field.h:
  Auto merged
 2006-05-24 20:52:57 +04:00
unknown
12a0f4ff14 Remove dflt_field from field structure as this was only needed when createing temporary table and I found another soultion that doesn't increase the size of the field structure for all table instances. (Better fix for bug #19089) 
Fixed compiler warnings
Fixed valgrind warning in Item_date_add_intervall::eq. (Recoding of bugfix #19490)


sql/field.cc:
  remove dflt_field from field structure (not needed)
  Simple cleanup of code that been copied elsewhere
sql/field.h:
  remove dflt_field from field structure (not needed)
sql/item.h:
  Removed compiler warnings
sql/item_timefunc.cc:
  Fixed Item_date_add_intervall::eq
  The problem was that when we call 'eq' 'this' is not fixed, which means we can't call const_item() or a value function.
  I fixed this so that we check eq for all arguments and that the sign and type are identical.
  (The original code gave a 'accessing uninitialized data' in valgrind.
sql/mysql_priv.h:
  Added default fields to create_tmp_field
sql/sql_insert.cc:
  New default_field parameter to create_tmp_field()
sql/sql_select.cc:
  New default_field parameter to create_tmp_field()
  Use this in create_tmp_table() to set right default value for a field
 2006-05-24 11:56:59 +03:00
unknown
fc2e96ee7b Fix for bug#17626 CREATE TABLE ... SELECT failure with TRADITIONAL SQL mode 
transfer NO_DEFAULT_VALUE_FLAG flag to new field


mysql-test/r/strict.result:
  Fix for bug#17626 CREATE TABLE ... SELECT failure with TRADITIONAL SQL mode
  test case
mysql-test/r/type_ranges.result:
  Fix for bug#17626 CREATE TABLE ... SELECT failure with TRADITIONAL SQL mode
  result fix
mysql-test/t/strict.test:
  Fix for bug#17626 CREATE TABLE ... SELECT failure with TRADITIONAL SQL mode
  test case
 2006-05-23 13:27:45 +05:00
unknown
321708d36d Post-review fixes for bug #19089 
mysql-test/r/view.result:
  Post-review fixes.
sql/field.cc:
  Post-review fixes.
sql/field.h:
  Post-review fixes.
sql/sql_select.cc:
  Post-review fixes.
 2006-05-22 07:57:46 -07:00
unknown
960578fdfd Merge rurik.mysql.com:/home/igor/mysql-5.0 
into  rurik.mysql.com:/home/igor/dev/mysql-5.0-0


sql/sql_select.cc:
  Auto merged
mysql-test/r/view.result:
  Manual merge
mysql-test/t/view.test:
  Manual merge
 2006-05-20 19:10:43 -07:00
unknown
db5d197414 Fixed bug #19089. 
When a CREATE TABLE command created a table from a materialized
view id does not inherit default values from the underlying table.
Moreover the temporary table used for the view materialization
does not inherit those default values.
In the case when the underlying table contained ENUM fields it caused
misleading error messages. In other cases the created table contained
wrong default values.
The code was modified to ensure inheritance of default values for
materialized views.


mysql-test/r/view.result:
  Added a test case for bug #19089.
mysql-test/t/view.test:
  Added a test case for bug #19089.
sql/field.cc:
  Fixed bug ##19089.
  Added field dflt_field to the class Field.
  This field is set for temp table fields that inherits
  default values of items from which they are created.
sql/field.h:
  Fixed bug ##19089.
  Added field dflt_field to the class Field.
  This field is set for temp table fields that inherits
  default values of items from which they are created.
sql/sql_select.cc:
  Fixed bug #19089.
  When a CREATE TABLE command created a table from a materialized
  view id does not inherit default values from the underlying table.
  Moreover the temporary table used for the view materialization
  does not inherit those default values.
  The code was modified to ensure inheritance of default values for
  materialized views.
 2006-05-20 18:54:43 -07:00
unknown
44de69cfdd Merge mysql.com:/home/psergey/tmp_merge3 
into  mysql.com:/home/psergey/mysql-5.1-merge2


mysql-test/r/select.result:
  Auto merged
mysql-test/r/subselect.result:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/table.h:
  Auto merged
sql/opt_range.cc:
  Manual merge
 2006-05-13 22:40:26 +04:00
unknown
75066a6ab6 Merge mysql.com:/home/psergey/tmp_merge 
into  mysql.com:/home/psergey/mysql-5.1-merge5


sql/sql_select.cc:
  Auto merged
 2006-05-11 18:41:53 +04:00
unknown
3fa6432b09 BUG#17379 Wrong reuse of E(#rows(range)) as E(#rows(ref(const))): 
Re-work best_access_path() and find_best() to reuse E(#rows(range access)) as
E(#rows(ref[_or_null](const) access) only when it is appropriate.
[This is the final cumulative patch]


mysql-test/r/select.result:
  BUG#17379: Testcase
mysql-test/r/subselect.result:
  BUG#17379: Updated test results
mysql-test/t/select.test:
  BUG#17379: Testcase
sql/opt_range.cc:
  BUG#17379: Wrong reuse of E(#rows(range)) as E(#rows(ref(const))):
  Make range optimizer together with TABLE::quick_* also return TABLE::quick_n_ranges
sql/sql_select.cc:
  BUG#17379: Wrong reuse of E(#rows(range)) as E(#rows(ref(const))):
  Re-work best_access_path() to reuse E(#rows(range access)) as
  E(#rows(ref[_or_null](const) access) only when it is appropriate.
sql/table.h:
  BUG#17379: Wrong reuse of E(#rows(range)) as E(#rows(ref(const))):
  Make range optimizer together with TABLE::quick_* also return TABLE::quick_n_ranges
 2006-05-10 17:40:20 +04:00
unknown
588082712a Merge mysql.com:/home/kgeorge/mysql/5.0/clean 
into  mysql.com:/home/kgeorge/mysql/5.0/B18068


sql/sql_select.cc:
  Auto merged
 2006-05-10 09:38:40 +03:00
unknown
2ba465f4c5 Merge spetrunia@bk-internal.mysql.com:/home/bk/mysql-5.0 
into  mysql.com:/home/psergey/mysql-5.0-best_access_path_j-push


sql/sql_select.cc:
  Auto merged
 2006-05-10 04:14:09 +04:00
unknown
fb2477b331 Merge mysql.com:/home/kgeorge/mysql/5.0/B18068 
into  mysql.com:/home/kgeorge/mysql/5.1/B18068


sql/sql_select.cc:
  Auto merged
 2006-05-09 18:47:29 +03:00
unknown
baae7a97d9 BUG#18068: SELECT DISTINCT (with duplicates and covering index) 
When converting DISTINCT to GROUP BY where the columns are from the covering
index and they are quoted twice in the SELECT list the optimizer is creating
improper processing sequence. This is because of the fact that the columns
of the covering index are not recognized as such and treated as non-index
columns.

Generally speaking duplicate columns can safely be removed from the GROUP
BY/DISTINCT list because this will not add or remove new rows in the
resulting set. Duplicates can be removed even if they are not consecutive
(as is the case for ORDER BY, where the duplicate columns can be removed
only if they are consecutive).

So we can safely transform "SELECT DISTINCT a,a FROM ... ORDER BY a" to
"SELECT a,a FROM ... GROUP BY a ORDER BY a" instead of 
"SELECT a,a FROM .. GROUP BY a,a ORDER BY a". We can even transform 
"SELECT DISTINCT a,b,a FROM ... ORDER BY a,b" to
"SELECT a,b,a FROM ... GROUP BY a,b ORDER BY a,b".

The fix to this bug consists of checking for duplicate columns in the SELECT
list when constructing the GROUP BY list in transforming DISTINCT to GROUP
BY and skipping the ones that are already in.


mysql-test/r/distinct.result:
  test case for the bug without loose index scan
mysql-test/r/group_min_max.result:
  test case for the bug
mysql-test/t/distinct.test:
  test case for the bug without loose index scan
mysql-test/t/group_min_max.test:
  test case for the bug
sql/sql_select.cc:
  duplicates check and removal
 2006-05-09 18:13:01 +03:00
unknown
5b09d7a5e1 BUG#16798: Merge into 5.0: s/used_tables()/!const_item()/, added comment about its effects. 2006-05-07 19:01:49 +04:00
unknown
7139089aa5 Refactoring: Factor out common code from find_best() and best_access_path(): make 
find_best() call best_access_path().
 2006-05-07 18:07:08 +04:00
unknown
375749b8af Fixed bug #14927. 
A query with a group by and having clauses could return a wrong
result set if the having condition contained a constant conjunct 
evaluated to FALSE.
It happened because the pushdown condition for table with
grouping columns lost its constant conjuncts.
Pushdown conditions are always built by the function make_cond_for_table
that ignores constant conjuncts. This is apparently not correct when
constant false conjuncts are present.



mysql-test/r/having.result:
  Added a test case for bug #14927.
mysql-test/t/having.test:
  Added a test case for bug #14927.
sql/sql_lex.cc:
  Fixed bug #14927.
  Initialized fields for having conditions in  st_select_lex::init_query().
sql/sql_lex.h:
  Fixed bug #14927.
  Added a field to restore having condititions for execution in SP and PS.
sql/sql_prepare.cc:
  Fixed bug #14927.
  Added code to restore havinf conditions for execution in SP and PS.
sql/sql_select.cc:
  Fixed bug #14927.
  Performed evaluation of constant expressions in having clauses.
  If the having condition contains a constant conjunct that is always false
  an empty result set is returned after the optimization phase.
  In this case the corresponding EXPLAIN command now returns 
  "Impossible HAVING" in the last column.
 2006-05-06 23:48:13 -07:00
unknown
3f54cb9cc6 Merge mysql.com:/home/psergey/mysql-4.1-bug16798 
into mysql.com:/home/psergey/mysql-5.0-bug16798-merge


sql/sql_select.cc:
  Auto merged
 2006-05-06 13:19:09 +04:00
unknown
c13144722a BUG#16798: Inapplicable ref_or_null query plan and bad query result on random occasions 
The bug was as follows: When merge_key_fields() encounters "t.key=X OR t.key=Y" it will 
try to join them into ref_or_null access via "t.key=X OR NULL". In order to make this 
inference it checks if Y<=>NULL, ignoring the fact that value of Y may be not yet known.

The fix is that the check if Y<=>NULL is made only if value of Y is known (i.e. it is a
constant).
TODO: When merging to 5.0, replace used_tables() with const_item() everywhere in merge_key_fields().


mysql-test/r/innodb_mysql.result:
  Testcase for BUG16798
mysql-test/t/innodb_mysql.test:
  Testcase for BUG16798
sql/sql_select.cc:
  BUG#16798: Inapplicable ref_or_null query plan and bad query result on random occasions 
  In merge_key_fields() don't call val->is_null() if the value of val is not known.
 2006-05-06 13:15:00 +04:00
unknown
edfc33bed0 Merge mysql.com:/home/my/mysql-5.0 
into  mysql.com:/home/my/mysql-5.1


mysql-test/lib/mtr_report.pl:
  Auto merged
mysql-test/mysql-test-run.sh:
  Auto merged
mysql-test/r/subselect.result:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_test.cc:
  Auto merged
sql/sql_view.cc:
  Auto merged
sql/sql_lex.cc:
  manual merge
 2006-05-04 22:27:12 +03:00
unknown
ad370e3d89 Merge rurik.mysql.com:/home/igor/mysql-5.0 
into  rurik.mysql.com:/home/igor/dev/mysql-5.0-0


mysql-test/r/subselect.result:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sql_select.cc:
  Auto merged
 2006-05-03 19:38:37 -07:00
unknown
21d61c2be7 Fixed bug #14292: performance degradation for a benchmark query. 
This performance degradation was due to the fact that some
cost evaluation code added into 4.1 in the function find_best was
not merged into the code of the function best_access_path added
together with other code for greedy optimizer.
Added a parameter to the function print_plan. The parameter contains
accumulated cost for a given partial join.
 
The patch does not include a special test case since this performance
degradation is hard to reproduse with a simple example.

TODO: make the function find_best use the function best_access_path
in order to remove duplication of code which might result in incomplete
merges in the future.


mysql-test/r/delete.result:
  Fixed bug #14292: performance degradation for a benchmark query.
  Adjusted test results.
mysql-test/r/subselect.result:
  Fixed bug #14292: performance degradation for a benchmark query.
  Adjusted test results.
sql/mysql_priv.h:
  Fixed bug #14292: performance degradation for a benchmark query.
  Added a parameter to the function print_plan. The parameter contains
  accumulated cost for a given partial join.
sql/sql_select.cc:
  Fixed bug #14292: performance degradation for a benchmark query.
  This performance degradation was due to the fact that some
  cost evaluation code added into 4.1 in the function find_best was
  not merged into the code of the function best_access_path added
  together with other code for greedy optimizer.
sql/sql_test.cc:
  Fixed bug #14292: performance degradation for a benchmark query.
  Added a parameter to the function print_plan. The parameter contains
  accumulated cost for a given partial join.
 2006-05-02 18:31:20 -07:00
unknown
9f7548ae36 Merge mysql.com:/home/jimw/my/tmp_merge 
into  mysql.com:/home/jimw/my/mysql-5.1-clean


mysql-test/r/user_var.result:
  Auto merged
mysql-test/r/variables.result:
  Auto merged
mysql-test/t/variables.test:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
mysql-test/mysql-test-run.pl:
  Resolve conflict
mysql-test/ndb/ndbcluster.sh:
  Resolve conflict
sql/set_var.cc:
  Resolve conflict
sql/share/errmsg.txt:
  Resolve conflict
 2006-04-30 09:43:26 -07:00
unknown
08f930375b Manually merged 
client/mysql.cc:
  Auto merged
mysql-test/mysql-test-run.sh:
  Auto merged
mysql-test/r/func_gconcat.result:
  Auto merged
mysql-test/t/rpl_relayrotate.test:
  Auto merged
mysys/mf_keycache.c:
  Auto merged
BitKeeper/deleted/.del-innodb_unsafe_binlog-master.opt~9cbe1bb3d8696c5b:
  Auto merged
mysql-test/t/rpl_stm_until.test:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/lock.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_union.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/unireg.h:
  Auto merged
storage/ndb/src/kernel/SimBlockList.cpp:
  Auto merged
storage/ndb/src/kernel/blocks/ndbcntr/NdbcntrInit.cpp:
  Auto merged
 2006-04-25 13:04:39 +04:00
unknown
ccee4036c2 Manually merged 
sql/item.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
 2006-04-24 17:52:15 +04:00
unknown
103fbcee45 Merge rurik.mysql.com:/home/igor/dev/mysql-4.1-0 
into  rurik.mysql.com:/home/igor/dev/mysql-5.0-0


mysql-test/r/order_by.result:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
mysql-test/t/func_gconcat.test:
  Manual merge
mysql-test/t/order_by.test:
  Manual merge
sql/sql_lex.h:
  Manual merge
sql/sql_parse.cc:
  Manual merge
sql/sql_union.cc:
  Manual merge
 2006-04-21 00:36:20 -07:00
unknown
9225a51c58 Fixed bug #18767. 
The bug caused wrong result sets for union constructs of the form
(SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2.
For such queries order lists were concatenated and limit clause was
completely neglected. 


mysql-test/r/order_by.result:
  Added a test case for bug #18767.
mysql-test/t/order_by.test:
  Added a test case for bug #18767.
sql/sql_lex.h:
  Fixed bug #18767.
  Placed the code the created a fake SELECT_LEX into a separate function.
sql/sql_parse.cc:
  Fixed bug #18767.
  Placed the code the created a fake SELECT_LEX into a separate function.
sql/sql_select.cc:
  Fixed bug #18767.
  Changed the condition on which a SELECT is treated as part of a UNION.
  The SELECT in 
  (SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2 
  now is handled in the same way as the first SELECT in a UNION
  sequence.
sql/sql_union.cc:
  Fixed bug #18767.
  Changed the condition at which a SELECT is treated as part of a UNION.
  The SELECT in 
  (SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2 
  now is handled in the same way as the first SELECT in a UNION
  sequence.
sql/sql_yacc.yy:
  Fixed bug #18767.
  Changed the condition at which a SELECT is treated as part of a UNION.
  The SELECT in 
  (SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2 
  now is handled in the same way as the first SELECT in a UNION
  sequence. In the same way is handled the SELECT in
  (SELECT ... LIMIT n) ORDER BY order list.
  Yet if there is neither ORDER BY nor LIMIT in the single-select
  union construct
  (SELECT ...) ORDER BY order_list
  then it is still handled as simple select with an order clause.
 2006-04-20 22:15:38 -07:00
unknown
4b7c4cd27f Fixed bug#18739: non-standard HAVING extension was allowed in strict ANSI sql mode. 
The SQL standard doesn't allow to use in HAVING clause fields that are not 
present in GROUP BY clause and not under any aggregate function in the HAVING
clause. However, mysql allows using such fields. This extension assume that 
the non-grouping fields will have the same group-wise values. Otherwise, the 
result will be unpredictable. This extension allowed in strict 
MODE_ONLY_FULL_GROUP_BY sql mode results in misunderstanding of HAVING 
capabilities.

The new error message ER_NON_GROUPING_FIELD_USED message is added. It says
"non-grouping field '%-.64s' is used in %-.64s clause". This message is
supposed to be used for reporting errors when some field is not found in the
GROUP BY clause but have to be present there. Use cases for this message are 
this bug and when a field is present in a SELECT item list not under any 
aggregate function and there is GROUP BY clause present which doesn't mention 
that field. It renders the ER_WRONG_FIELD_WITH_GROUP error message obsolete as
being more descriptive.
The resolve_ref_in_select_and_group() function now reports the 
ER_NON_GROUPING_FIELD_FOUND error if the strict mode is set and the field for 
HAVING clause is found in the SELECT item list only.



sql/share/errmsg.txt:
  Added the new ER_NON_GROUPING_FIELD_USED error message for the bug#14169.
mysql-test/t/having.test:
  Added test case for the bug#18739:  non-standard HAVING extension was allowed in strict ANSI sql mode.
mysql-test/r/having.result:
  Added test case for the bug#18739:  non-standard HAVING extension was allowed in strict ANSI sql mode.
sql/sql_select.cc:
  Added TODO comment to change the ER_WRONG_FIELD_WITH_GROUP to more detailed ER_NON_GROUPING_FIELD_USED message.
sql/item.cc:
  Fixed bug#18739: non-standard HAVING extension was allowed in strict ANSI sql mode.
  The resolve_ref_in_select_and_group() function now reports the
  ER_NON_GROUPING_FIELD_FOUND error if the strict MODE_ONLY_FULL_GROUP_BY mode
  is set and the field for HAVING clause is found in the SELECT item list only.
 2006-04-21 01:52:59 +04:00
unknown
b30d80e826 Post merge fix 2006-04-20 00:42:12 -07:00
unknown
8e27c3744f Merge rurik.mysql.com:/home/igor/dev/mysql-4.1-2 
into  rurik.mysql.com:/home/igor/dev/mysql-5.0-0


mysys/mf_keycache.c:
  Auto merged
ndb/src/kernel/SimBlockList.cpp:
  Auto merged
ndb/src/kernel/blocks/ndbcntr/NdbcntrInit.cpp:
  Auto merged
mysql-test/r/func_gconcat.result:
  Manual merge
mysql-test/r/key_cache.result:
  Manual merge
mysql-test/t/func_gconcat.test:
  Manual merge
mysql-test/t/key_cache.test:
  Manual merge
sql/item_func.cc:
  Manual merge
sql/item_sum.h:
  Manual merge
sql/lock.cc:
  Manual merge
sql/sql_select.cc:
  Manual merge
sql/unireg.h:
  Manual merge
 2006-04-19 18:08:15 -07:00