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Author SHA1 Message Date
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
bdda011675 Fix for bug #17394 - Events namespace is wrong
mysql-test/lib/init_db.sql:
  remove definer from PK
mysql-test/r/events.result:
  update results
mysql-test/r/system_mysql_db.result:
  update results
mysql-test/t/events.test:
  remove I_S.EVENTS test and move it to events_grant.test
scripts/mysql_fix_privilege_tables.sql:
  change table definition
sql/event.cc:
  make events non-user specific (namespace change)
sql/event.h:
  make events non-user specific (namespace change)
sql/event_priv.h:
  make events non-user specific (namespace change)
sql/event_scheduler.cc:
  make events non-user specific (namespace change)
sql/event_timed.cc:
  make events non-user specific (namespace change)
sql/sql_parse.cc:
  make events non-user specific (namespace change)
sql/sql_show.cc:
  SHOW EVENTS is available to everyone who has EVENT on specific schema.
  No additional privileges are needed to see others' events.
  - user A has events in db1 and db2
  - user B has events in db1 and db3
  A will see all his events from db1 and db2 as well as B's events
  from db1 but not from db3.
  B will see her events from db1 and db3. In addition B will see
  only A's events from db1 but not db2.
2006-05-29 10:39:45 +02:00
unknown
f4781a7e4c fix for bug #17619 Scheduler race conditions
- Scheduler is either initialized at server start or never.
  Starting & stopping is now suspending & resuming.
- The scheduler has clear OO interface
- Now all calls to the scheduler are synchronous
- GLOBAL event_scheduler uses thd::sys_var_tmp (see set_var.cc)
- External API is encapsulated into class Events
- Includes fixes for all comments of Kostja's review of 19.05.2005

Starting to merge into 5.1-release (5.1.10) and push


BitKeeper/etc/ignore:
  Added libmysqld/event_scheduler.cc to the ignore list
libmysqld/Makefile.am:
  executor -> scheduler
mysql-test/r/events.result:
  update result
mysql-test/r/events_bugs.result:
  update result
mysql-test/r/events_logs_tests.result:
  update result
mysql-test/r/events_microsec.result:
  update result
mysql-test/r/events_scheduling.result:
  update result
mysql-test/r/events_stress.result:
  update result
mysql-test/t/disabled.def:
  enable these tests
mysql-test/t/events.test:
  optimize the test a bit for speed, save some seconds runtime
  remove FULL from SHOW EVENTS
  mostly use I_S.EVENTS
mysql-test/t/events_bugs.test:
  Skip irrelevant for the current design tests - all events are loaded
  on server startup. Change in mysql.event will be visible on next server start.
  Don't use numeric error codes.
mysql-test/t/events_logs_tests.test:
  optimize the test a bit for speed
mysql-test/t/events_microsec.test:
   Skip irrelevant for the current design tests - all events are loaded
      on server startup. Change in mysql.event will be visible on next server start.
      Don't use numeric error codes.
mysql-test/t/events_scheduling.test:
  broader test
mysql-test/t/events_stress.test:
  Rework the test to the new architecture of suspending/resuming.
  Use less events, no need for thousands, hundreds is still ok.
sql/Makefile.am:
  executor -> scheduler
sql/cmakelists.txt:
  executor -> scheduler
sql/event.cc:
  - remove todo comments
  - remove unneded evex_queue abstraction functions
  - move events_init() and events_shutdown() from event_executor.cc to here
  - export db_create_event
  - remove evex_load_and_compile_event, part of class Event_scheduler
  - integrate the public interface found in event.h and used by sql_parse.cc
    to use the new class Event_scheduler.
sql/event.h:
  - add COND_finished so if one thread kills a running event it waits on this
  - export callback event_timed_definer_equal, event_timed_identifier_equal(),
    event_timed_name_equal and event_timed_db_equal()
    to be used by Event_scheduler::drop_matching_events()
  - cleanup event.h
  - encapsulated all external interface into class Events
sql/event_executor.cc:
  make it empty, will delete after that
sql/event_priv.h:
  - more things in the private header
  - remove event queue abstraction functions. tightly bind to QUEUE
  - export privately db_drop_event, db_find_event, db_create_event()
  - made change_security_context() and restore_security_context() free functions
sql/event_timed.cc:
  - fix calculation of time when ENDS is set (STARTS is always set)
  - during Event_timed::compile() set the right Security_ctx. Prevents a crash
        during Event_scheduler::load_events_from_db()
  - add Event_timed::kill_thread()
  - implement event_timed_*_equal()
  - made change_security_context() and restore_security_context() free functions.
  - Comments cleanups
sql/lex.h:
  new word scheduler for SHOW SCHEDULER STATUS (available only debug builds)
sql/log.cc:
  move these from event_scheduler.cc
sql/mysql_priv.h:
  refactor kill_one_thread
  export sql_print_message_func and sql_print_message_handlers
sql/mysqld.cc:
  In close_connections, called by kill_server() skip the main scheduler
  thread and use events_shutdown() for shutting down the scheduler, in the same
  manner it's done for RPL.
  Add a new value to --event-scheduler :
  0 <- No scheduler available
  1 <- Start with scheduler enabled
  2 <- Start with scheduler suspended
sql/repl_failsafe.cc:
  refactor thd::system_thread to be an enum
sql/set_var.cc:
  move sys_var_event_executor::update() to set_var.cc
  executor -> scheduler
  use thd::sys_var_tmp
sql/set_var.h:
  executor -> scheduler
sql/share/errmsg.txt:
  3 new error messages
sql/sql_class.cc:
  refactor thd::system_thread to be an enum . more type-safety
sql/sql_class.h:
  refactor thd::system_thread to be an enum . more type-safety
sql/sql_db.cc:
  get the error from evex_drop_schema_events
sql/sql_error.h:
  export warning_level_names
sql/sql_lex.h:
  new command SHOW SCHEDULER STATUS, available only in debug build and
  for debug purposes.
sql/sql_parse.cc:
  refactor kill_one_thread() -> does the *dirty* work, and sql_kill
  just the reporting.
  add handler for SQLCOM_SHOW_SCHEDULER_STATUS
sql/sql_show.cc:
  fix verbosity handling (this will be obsoleted anyway by the fix for 17394).
sql/sql_yacc.yy:
  remove FULL from SHOW EVENTS
  add SHOW SCHEDULER STATUS in debug builds
sql/table.cc:
  Fix valgrind warning.
2006-05-22 20:46:13 +02:00
unknown
3fe07e2785 manual merge
mysql-test/r/events.result:
  Auto merged
sql/event.cc:
  Auto merged
sql/event_timed.cc:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/sql_show.cc:
  Auto merged
2006-04-07 09:18:29 +02:00
unknown
7c59699345 fix for bug #17494 (The algorithm for calculating execution times is not fully correct)
This also should fix 17493 and 17346, and probably 16397 (not tested).
WL#1034 (Internal CRON)
(post-review commit)


mysql-test/r/events.result:
  update result
mysql-test/t/events.test:
  update test
sql/event.cc:
  seems we get a crash if we compile it this way. better let the worker thread do it,
  this increases the stability.
sql/event_executor.cc:
  kick in more often
sql/event_timed.cc:
  - don't NULLify last_executed
  - implement (fix) better get_next_time() which does not use last_executed as basis
    but STARTS. STARTS is used as basis and the next point of time which is before ENDS,
    if set, is being found. The point > now and (point-starts) % interval_expression == 0.
sql/item_timefunc.cc:
  move calc_time_diff to time.cc as it can be reused in other parts of the 
  server code (see event_timed.cc)
sql/mysql_priv.h:
  export calc_time_diff() moved to time.cc from item_timefunc.cc
sql/sql_show.cc:
  - fix presenting of LAST_EXECUTED
  - cleanup a bit
sql/time.cc:
  - move calc_time_diff() from item_timefunc.cc to here
2006-04-07 09:08:58 +02:00
unknown
59eaf292de Fixed compiler and valgrind warnings
Added missing DBUG_xxx_RETURN statements
Fixed some usage of not initialized variables (as found by valgrind)
Ensure that we don't remove locked tables used as name locks from open table cache until unlock_table_names() are called.
This was fixed by having drop_locked_name() returning any table used as a name lock so that we can free it in unlock_table_names()
This will allow Tomas to continue with his work to use namelocks to syncronize things.

Note: valgrind still produces a lot of warnings about using not initialized code and shows memory loss errors when running the ndb tests


BitKeeper/etc/ignore:
  added mysql-test/r/*.log
client/mysqltest.c:
  Change type of variables to get rid of compiler warnings
  More debugging
  Fix memory leak
mysql-test/mysql-test-run.sh:
  Collect warnings about missing DBUG_RETURN statements
mysql-test/r/lock_multi.result:
  Add test of new code
mysql-test/r/ndb_condition_pushdown.result:
  Drop used tables before test
mysql-test/t/lock_multi.test:
  Add test of new code
mysql-test/t/ndb_condition_pushdown.test:
  Drop used tables before test
mysql-test/valgrind.supp:
  Ignore 'safe' warnings from libz (when used with archive)
sql/event.cc:
  More comments
  Simplify code
  Fixed memory leak found by valgrind
sql/ha_archive.cc:
  Remove compiler warnings (Wrong handlerton structure and signed/unsigned comparison)
sql/ha_berkeley.cc:
  Fixed compiler warning
sql/ha_blackhole.cc:
  Fixed compiler warning
sql/ha_federated.cc:
  Fixed compiler warning
sql/ha_heap.cc:
  Fixed compiler warning
sql/ha_myisam.cc:
  Fixed compiler warning
sql/ha_myisammrg.cc:
  Fixed compiler warning
sql/ha_ndbcluster.cc:
  Fixed compiler warnings
sql/ha_partition.cc:
  Fixed compiler warning
  Fixed error noticed by valgrind in ha_partition::rnd_init()
sql/handler.cc:
  Fixed compiler warning
sql/handler.h:
  Fixed compiler warning
sql/item.cc:
  Fixed compiler warning
sql/item_xmlfunc.cc:
  Fixed warning from valgrind when calling memcpy with wrong address
sql/lock.cc:
  More debugging
sql/log.cc:
  Fixed compiler warning
  Indentation fixes
sql/log.h:
  Fixed compiler warning
sql/mysql_priv.h:
  Changed prototype for 'drop_locked_tables'
sql/opt_range.cc:
  Indentation fix
sql/password.c:
  Removed compiler warnings
sql/set_var.cc:
  Fixed compiler warning
sql/slave.cc:
  Fixed compiler warning
sql/sp_head.cc:
  Fixed compiler warning
sql/sql_acl.cc:
  Fixed compiler warning
sql/sql_analyse.cc:
  Added missing DBUG_RETURN statements
sql/sql_base.cc:
  Removed de-reference of not initialized pointer
  More comments
  drop_locked_tables() changed to not delete tables used for name locking
  Fixed compiler warnings
sql/sql_delete.cc:
  Fixed usage of not initialized variable
  (deleted could be referenced in some not common error conditions)
sql/sql_parse.cc:
  Added missing DBUG_VOID_RETURN
  Simplify code
sql/sql_partition.cc:
  Fixed usage of wrong variable (noticed by valgrind)
sql/sql_plugin.cc:
  Removed compiler warning
sql/sql_show.cc:
  Removed compiler warning
sql/sql_table.cc:
  Ensure that we don't remove locked tables used as name locks from open table cache until unlock_table_names() are called.
  This was fixed by having drop_locked_name() returning any table used as a name lock so that we can free it in unlock_table_names()
  This will allow Tomas to continue with his work to use namelocks to syncronize things.
  
  Fixed wrong test of 'table_type' (path_length could otherwise be accessed uninitialized)
  
  Remove compile warnings about not initialized variables.
sql/sql_yacc.yy:
  Ensure that no_write_to_binlog is properly initialized
  (Was accessed uninitialized by partition code)
sql/table.cc:
  Removed valgrind warnings (not fatal)
  Removed compiler warnings
sql/tztime.cc:
  Removed valgrind warning
storage/ndb/include/ndbapi/NdbIndexStat.hpp:
  Removed compiler warning
2006-03-29 14:27:36 +03:00
unknown
11c7dbd3a5 fix compiler warnings: precision loses, unused vars
the warnings came from MSFT compiler (output of pushbuild)


sql/event.cc:
  fix compiler warnings: precision loses, unused vars
sql/event_executor.cc:
  fix compiler warnings: precision loses, unused vars
sql/event_timed.cc:
  fix compiler warnings: precision loses, unused vars
2006-02-28 20:32:37 +01:00
unknown
58a6d96c8f class event_timed -> Event_timed
fix for bug#17793 (Scheduler uses class event_timed should be Event_timed)


sql/event.cc:
  class event_timed -> Event_timed
sql/event.h:
  class event_timed -> Event_timed
sql/event_executor.cc:
  class event_timed -> Event_timed
sql/event_priv.h:
  class event_timed -> Event_timed
sql/event_timed.cc:
  class event_timed -> Event_timed
sql/sql_lex.h:
  class event_timed -> Event_timed
sql/sql_show.cc:
  class event_timed -> Event_timed
sql/sql_yacc.yy:
  class event_timed -> Event_timed
2006-02-28 18:33:38 +01:00
unknown
b934539d77 fix for bug#16537
(post-review pre-push changes)
coding style (mostly trailing spaces removed)


mysql-test/r/events.result:
  fix result file
sql/event.cc:
  - remove trailing spaces
  - add a missing initializer (gcc warning)
  - C++ to C comments
sql/event_executor.cc:
  - fix coding style (C++ to C comments, remove trailing spaces)
  - fix wrong indexing buggie not found till now (queue indexing is 0 based,
    not 1 based)
sql/event_timed.cc:
  - fix coding style
2006-02-28 14:43:49 +01:00
unknown
f6f5292145 manual merge
mysql-test/r/events.result:
  Auto merged
mysql-test/t/events.test:
  Auto merged
sql/event.cc:
  Auto merged
sql/event.h:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
2006-02-28 12:08:13 +01:00
unknown
317c6851ba fix for bug#16537 (Events: mysql.event.starts is null)
- now when the event is created and STARTS is omitted then STARTS is implicitly
  CURRENT_TIMESTAMP
- This CS also fixed incorrect presentation of STARTS/ENDS in I_S.EVENTS
(incorporated review changes)


mysql-test/r/events.result:
  results of new test cases
mysql-test/t/events.test:
  new test cases for bug #16537 (Events: mysql.event.starts is null)
sql/event.cc:
  - check whether event_timed::starts_null only in case
    event_timed::expression is set, so for recurring events only
  - disable binlogging of CREATE EVENT statement. It should not be
    replicated but the result of the execution. Still the replication is
    untouched topic.
sql/event.h:
  - add flags whether starts, ends and execute_at are null or not
sql/event_executor.cc:
  - check whether xxx_null instead of !xxxx.year
sql/event_timed.cc:
  - introduce xxx_null and change the usage of xxx.year to !xxx_null
sql/sql_show.cc:
  - don't show 0000-00-00 in I_S.EVENTS when the value is NULL
sql/sql_yacc.yy:
  - if STARTS is omitted default to current_timestamp
2006-02-28 11:43:10 +01:00
unknown
d25c405dc7 After merge fixes
BitKeeper/etc/ignore:
  added storage/ndb/src/common/util/testBitmask.cpp
mysql-test/mysql-test-run.sh:
  Add libmysql_r/.libs to path for shared libraries.
  (Needed for mysqlimport)
mysql-test/r/ctype_cp932_notembedded.result:
  After merge fix
mysql-test/r/func_system.result:
  Version number on embedded server can be longer than 40
mysql-test/r/partition_mgm_err.result:
  Move tests that require symlinks to partion_mgm_err2.test
mysql-test/r/query_cache.result:
  Fix possible errors from previous tests
mysql-test/t/ctype_cp932_notembedded.test:
  After merge fix
mysql-test/t/func_system.test:
  Version number on embedded server can be longer than 40
mysql-test/t/partition_mgm_err.test:
  Move tests that require symlinks to partion_mgm_err2.test
mysql-test/t/query_cache.test:
  Fix possible errors from previous tests
mysys/my_symlink2.c:
  More debugging
sql/event.cc:
  Code cleanup
sql/event_executor.cc:
  Ensure that event mutexes are properly cleared up
sql/mysqld.cc:
  Ensure that event mutexes are properly cleared up
mysql-test/r/partition_mgm_err2.result:
  New BitKeeper file ``mysql-test/r/partition_mgm_err2.result''
mysql-test/t/partition_mgm_err2.test:
  New BitKeeper file ``mysql-test/t/partition_mgm_err2.test''
2006-02-26 15:11:56 +02:00
unknown
d7d068ea22 merge
mysql-test/r/events.result:
  Auto merged
sql/event.cc:
  Auto merged
sql/event.h:
  Auto merged
sql/event_executor.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/share/errmsg.txt:
  Auto merged
sql/event_timed.cc:
  manual merge
2006-02-24 12:03:32 +01:00
unknown
ae48f5fdf7 fix for bug#16407 (EVENTS: sql_mode)
post-review fixes


mysql-test/r/events_bugs.result:
  fix result
sql/event.cc:
  fix compilation problem on windows
sql/event_executor.cc:
  show the right host in show processlist (should be event_scheduler@localhost)
sql/event_timed.cc:
  a bit more debug infor
  fix a problem introduced with previous push :( . clean everything that's whitespace.
  found because of new test cases which were crashing.
sql/sql_show.cc:
  fix compile problem on windows
2006-02-21 02:40:23 +01:00
unknown
e41f5cc464 manual merge
sql/event.cc:
  Auto merged
sql/event.h:
  Auto merged
sql/sql_show.cc:
  Auto merged
2006-02-21 00:01:39 +01:00
unknown
203b37effe fix for bug#16407 (Events: Changes in sql_mode won't be taken into account)
WL#1032
sql_mode setting was disregarded during create/alter event and wasn't set during
event execution.
(post-review small fixes)


sql/event.cc:
  store the sql_mode when the body is stored
  - always on create event
  - during alter event if the user changes the body
sql/event.h:
  add sql_mode as member variable
sql/event_timed.cc:
  - exchange thd->variables.sql_mode before and after execution
  - set the sql_mode of the anonymous SP -> event_timed::sphead
sql/sql_show.cc:
  - show real content in I_S.EVENTS.SQL_MODE , disallow NULL
2006-02-20 23:52:22 +01:00
unknown
17fb7f96a2 fix for bug #16411 Events: Microsecond intervals are allowed
WL#1034


mysql-test/r/events.result:
  output fix
sql/event.cc:
  - handle also INTERVAL_MICROSECOND, was missing.
  - use renamed ER_ code which is generic
sql/event.h:
  add new error code
sql/event_executor.cc:
  - use new ER_ code name
  - handle EVEX_MICROSECOND_UNSUP error code
sql/event_timed.cc:
  forbid MICROSECOND intervals for events
sql/share/errmsg.txt:
  rename error code, it's generic
sql/sql_show.cc:
  use new error code name
sql/sql_yacc.yy:
  bail out if any MICROSECOND interval is specified
2006-02-20 16:06:05 +01:00
unknown
c80a0d7171 fix bug in show events which shows
| INTERVAL_VALUE | INTERVAL_FIELD |
| 20             | 20 MINUTE      |
the second one should be without the value


mysql-test/r/events.result:
  update test result to be as they should be
sql/event_timed.cc:
  manually append the name of the interval because it's no more appended
  by reconstruct_value
2006-02-16 13:11:16 +01:00
unknown
89f598eea9 small post-merge fixes for bug#16406
(pre-push)


mysql-test/r/events.result:
  update result
mysql-test/t/events.test:
  few more tests
sql/event.cc:
  fix compilation failure after big merge
sql/event.h:
  initialize s_ctx to be the context to be used.
  don't use sphead->m_security_ctx but we will copy 
  the initted ctx to there
sql/event_timed.cc:
  -initialize s_ctx to be the context to be used.
  don't use sphead->m_security_ctx but we will copy 
  the initted ctx to there
  
  - first init the context
  - then compile the event
  - and then copy the context
  - don't use mysql_change_db() for now change_security_context() gets the
    right context info
2006-02-16 05:21:02 +01:00
unknown
74b2989dc4 merge
mysql-test/r/events.result:
  Auto merged
mysql-test/t/events.test:
  Auto merged
sql/event_priv.h:
  Auto merged
sql/sql_db.cc:
  Auto merged
sql/event.cc:
  manual merge
sql/event.h:
  manual merge
sql/event_executor.cc:
  manual merge
sql/event_timed.cc:
  manual merge
2006-02-16 01:27:36 +01:00
unknown
fea4742db5 fix for bug#16406 (Events: DROP DATABASE doesn't automatically drop events)
WL#1034
- This changeset also changes the executor so its quite more stable now.
  Stressing test case added that executes ~800 events per second and dropping
  hundreds of events at once using DROP DATABASE.
(with fixes after review of JimW)
(with fixes after review of Serg)


mysql-test/r/events.result:
  update results after TRIGGER_ACL was added
mysql-test/t/events.test:
  -redundant line
sql/event.cc:
  Implemented evex_db_drop_events() which drops all events
  from a specific database. Needed for SQLCOM_DROP_DATABASE
sql/event.h:
  - protect the event better (see the changes to event_executor.cc
    and event.cc). An event object could be used in a spawned thread
    before it's executed but till now the object is marked as being
    executed when the anonymous sp_head is executed. However, there are
    timeframes before and after that during which the event is not marked
    as executed and other thread may delete the object -> so we end with
    a nirvana pointer.
sql/event_executor.cc:
  - extract some of the code executed in the main thread to a function. Too long
    functions are bad for the overview.
  - prepend all information/error messages to the console with "SCHEDULER:" for
    better overview, and easied searching in the log tables.
sql/event_priv.h:
  - change the name, of evex_db_find_event_by_name() and don't
    used C++ features like function overloading
  - define consts for result returned from event_timed::spawn_now()
sql/event_timed.cc:
  - add few methods related to event execution.
    now the event spawns the worker thread and
    passes itself as parameter. This way it locks itself for exectution
    first and then spawning -> no race condition. When the worker thread
    has finished working with the reference it calls back
    event_timed::spawn_thread_finish() to unlock itself.
sql/sql_db.cc:
  - call evex_drop_db_events() on DROP DATABASE
2006-02-16 00:43:11 +01:00
unknown
ea8a26c6f3 build fixes
sql/event.cc:
  - make this not unsigned. gcc complains
sql/event_timed.cc:
  acl_getroot_no_password() is not there in libmysqld, disable it's usage
  in this case.
sql/set_var.cc:
  fix for the broken build of Serg. gcc seems to be pretty happy without
  the return and returns the value of the last statement
2006-02-15 23:43:11 +01:00
unknown
99526f2efb post-merge fixes of bug 16548
mysql-test/r/events.result:
  post-merge fixes
mysql-test/t/events.test:
  post-merge fixes
sql/event.cc:
  post-merge fixes
sql/share/errmsg.txt:
  post-merge fixes
sql/table.cc:
  post-merge fixes
2006-02-14 20:10:51 +01:00
unknown
752cadd453 manual merge
mysql-test/r/events.result:
  Auto merged
mysql-test/t/events.test:
  Auto merged
sql/event.h:
  Auto merged
sql/event_executor.cc:
  Auto merged
sql/event_timed.cc:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_acl.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/table.cc:
  Auto merged
sql/table.h:
  Auto merged
2006-02-14 17:05:36 +01:00
unknown
8d4f74be2d - final fixes for bug#16431 (Events: An event which alters itself disappears)
- fix for bug#16423 (Events: SHOW CREATE EVENT doesn't work)
- this Changeset commits makes CREATE/UPDATE/DELETE EVENT real DDL statements
  by committing the currently open transaction before they are executed.
- this Changeset also fixes a trailing space problem since the very early days
  of the internal cron
- adds sophisticated checking of whether mysql.event was tampered accidentally
  or with purpose by an user.
- adds a lot of inline function documentation - documents everything left
  uncodumented
- INTERVAL_XXXX to XXX in I_S.EVENTS.INTERVAL_FIELD

WL#1034 (Internal CRON)


mysql-test/r/events.result:
  update result
mysql-test/t/events.test:
  add test cases for SHOW CREATE EVENT
  add test cases where the structure of mysql.event is changed and error reporting in this case
sql/event.cc:
  - do a lot more checking on mysql.event whether it's valid
    introduced generic function table_check_intact() which can be used also
    for checking whether a system table (mysql.*) has been tampered by user
    and report an error in this case. The checking is quite strict, thus
    maybe some mechanism can be added later that loosens this like some
    session variable, for instance, i_am_aware_that_i_can_damage_my_data
    so the table will be opened nevertheless we think that it's not valid.
  - add evex_show_create_event(THD *thd, sp_name *spn, LEX_STRING definer)
  - document a loooot. not a single function left undocumented.
sql/event.h:
  - add evex_show_create_event(THD *thd, sp_name *spn, LEX_STRING definer)
  - change get_show_create_event() to get_create_event()
  - add TABLE_FIELD_W_TYPE used by table_check_intact()
  - add event_timed::sql_mode so it can be used by show create event. currently
    always 0, will be fixed by a patch for another bug. At least makes the code
    of show create event complete.
sql/event_executor.cc:
  - add evex_check_system_tables() that checks on boot and event
    main thread startup that mysql.db and mysql.user tables are correct.
  - document everything!
sql/event_priv.h:
  remove a line
sql/event_timed.cc:
  - implement SHOW CREATE EVENT
  - document undocumented functions!
sql/share/errmsg.txt:
  - fix an error message and add two new
sql/sql_acl.cc:
  - add mysql.db table definition to use by table_check_intact()
  - exchange some of the positions by numbers from mysql.db to enum names (see sql_acl.h)
sql/sql_acl.h:
  - define the structure of mysql.db table
sql/sql_parse.cc:
  - handle SQLCOM_SHOW_CREATE_EVENT
  - end the current transaction becase CREATE/UPDATE/DELETE EVENT is a DDL
    statement
sql/sql_show.cc:
  - remove interval_type_to_name
  - use common function event_reconstruct_interval_expression()
    that reconstructs the expression given at create/alter, to some
    extent - interval of 2:62 MINUTE_SECOND will be reconstructed as
    interval of 3:02 MINUTE_SECOND!
sql/sql_yacc.yy:
  init the definer of event_timed also when doing SHOW CREATE EVENT
  because it's needed for checking into mysql.event
sql/table.cc:
  - remove stale code. only mysql.event should be a 'system_table'
  - add table_check_intact() to check the consistency of a table.
    mostly usable with mysql.xxx tables.
sql/table.h:
  - export TABLE_FIELD_W_TYPE and table_check_intact() which are used for 
    checking the structure of a table. mostly usable for mysql.xxx tables.
2006-02-14 16:20:48 +01:00
unknown
99eb6eb661 - fix for bug #16414 (Events: Crash or hang if event drops itself)
WL#1034 (Internal CRON)
(with post-review fix)


mysql-test/r/events.result:
  update the result
mysql-test/t/events.test:
  use --sleep instead of select sleep()
  enable some scheduler related tests. They were disabled because of a hang that
  happened. The hang is fixed with this bugfix.
sql/event.cc:
  - evex_remove_from_cache reports back whether the in_memory
    object was deleted or was scheduled. In case scheduling then
    don't delete it from outside but let it do it itself
  - move out db interaction code out of evex_drop_event to db_drop_event
    so it can be called from outter space :)
sql/event_priv.h:
  - export the new function db_drop_event()
sql/event_timed.cc:
  - use db_drop_event() and don't implement the dropping ourselves
sql/sql_parse.cc:
  - some debug info about the status code returned.
2006-02-07 19:28:33 +01:00
unknown
2272e140fd post-commit merge
mysql-test/lib/init_db.sql:
  Auto merged
scripts/mysql_create_system_tables.sh:
  Auto merged
scripts/mysql_fix_privilege_tables.sql:
  Auto merged
sql/event.cc:
  Auto merged
sql/event.h:
  Auto merged
sql/event_executor.cc:
  Auto merged
sql/event_priv.h:
  Auto merged
sql/event_timed.cc:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
mysql-test/r/events.result:
  manual merge
mysql-test/r/system_mysql_db.result:
  manual merge
mysql-test/t/events.test:
  manual merge
2006-01-30 14:28:48 +01:00
unknown
c3542cebf9 fix for bug#16642 (Events: No INFORMATION_SCHEMA.EVENTS table)
post-review change - use pointer instead of copy on the stack.
WL#1034 (Internal CRON)
 This patch adds INFORMATION_SCHEMA.EVENTS table with the following format:
  EVENT_CATALOG  - MYSQL_TYPE_STRING  (Always NULL)
  EVENT_SCHEMA   - MYSQL_TYPE_STRING  (the database)
  EVENT_NAME     - MYSQL_TYPE_STRING  (the name)
  DEFINER        - MYSQL_TYPE_STRING  (user@host)
  EVENT_BODY     - MYSQL_TYPE_STRING  (the body from mysql.event)
  EVENT_TYPE     - MYSQL_TYPE_STRING  ("ONE TIME" | "RECURRING")
  EXECUTE_AT     - MYSQL_TYPE_TIMESTAMP (set for "ONE TIME" otherwise NULL)
  INTERVAL_VALUE - MYSQL_TYPE_LONG    (set for RECURRING otherwise NULL)
  INTERVAL_FIELD - MYSQL_TYPE_STRING  (set for RECURRING otherwise NULL)
  SQL_MODE       - MYSQL_TYPE_STRING  (for now NULL)
  STARTS         - MYSQL_TYPE_TIMESTAMP (starts from mysql.event)
  ENDS           - MYSQL_TYPE_TIMESTAMP (ends from mysql.event)
  STATUS         - MYSQL_TYPE_STRING  (ENABLED | DISABLED)
  ON_COMPLETION  - MYSQL_TYPE_STRING  (NOT PRESERVE | PRESERVE)
  CREATED        - MYSQL_TYPE_TIMESTAMP
  LAST_ALTERED   - MYSQL_TYPE_TIMESTAMP
  LAST_EXECUTED  - MYSQL_TYPE_TIMESTAMP
  EVENT_COMMENT  - MYSQL_TYPE_STRING

  SQL_MODE is NULL for now, because the value is still not stored in mysql.event .
Support will be added as a fix for another bug.

 This patch also adds SHOW [FULL] EVENTS [FROM db] [LIKE pattern]
1. SHOW EVENTS shows always only the events on the same user,
   because the PK of mysql.event is (definer, db, name) several 
   users may have event with the same name -> no information disclosure.
2. SHOW FULL EVENTS - shows the events (in the current db as SHOW EVENTS)
   of all users. The user has to have PROCESS privilege, if not then
   SHOW FULL EVENTS behave like SHOW EVENTS.
3. If [FROM db] is specified then this db is considered.
4. Event names can be filtered with LIKE pattern.
  SHOW EVENTS returns table with the following columns, which are subset of
  the data which is returned by SELECT * FROM I_S.EVENTS
   Db
   Name
   Definer 
   Type
   Execute at
   Interval value
   Interval field 
   Starts 
   Ends
   Status


mysql-test/lib/init_db.sql:
  change the PK - (definer, db, name)
  quicker searches when SHOW EVENTS;
  allow also different users to have events with the same name -> 
  no information disclosure
mysql-test/r/events.result:
  result of new tests
mysql-test/r/information_schema.result:
  result of new tests
mysql-test/r/information_schema_db.result:
  result of new tests
mysql-test/r/system_mysql_db.result:
  result of new tests
mysql-test/t/events.test:
  new tests for information_schema.events
scripts/mysql_create_system_tables.sh:
  change the PK of mysql.event to (definer, db, name)
scripts/mysql_fix_privilege_tables.sql:
  change the PK of mysql.event to (definer, db, name)
sql/event.cc:
  pass around the definer of the event because of the new PK
  which is (definer, db, name). It's needed for index searching.
sql/event.h:
  - make enum evex_table_field again public so it can be used
  in sql_show.cc
  - make created and modified ulonglong, because they should be such
  - make public evex_open_event_table so it can be used in sql_show.cc
sql/event_executor.cc:
  - cosmetics
sql/event_priv.h:
  - moved enum evex_table_field and evex_open_event_table()
    to event.h (made them therefore public)
sql/event_timed.cc:
  - in event_timed::init_definer() always fill this.definer with
    the concatenated value of definer_user@definer_host. Makes
    later the work easier.
  - pass around the definer wherever is needed for searching 
    (new prototype of evex_db_find_evex_aux)
sql/mysqld.cc:
  - add counter for SHOW EVENTS
sql/sql_lex.h:
  - register SHOW EVENTS as command
sql/sql_parse.cc:
  - handle SCH_EVENTS (I_S.EVENTS like SCH_TRIGGERS)
  - make additional check in case of SHOW EVENTS (check for EVENT on
    the current database. if it is null check_access() gives appropriate
    message back.
sql/sql_show.cc:
  - add INFORMATION_SCHEMA.EVENTS and SHOW EVENTS
  - I_S.EVENTS.SQL_MODE is NULL for now -> not implemented. Trudy
    asked to be added so bug #16642 can be completely closed. There
    is another bug report which will fix the lack of storage of
    SQL_MODE during event creation.
sql/sql_yacc.yy:
  - always call event_timed::init_definer() when CREATE/ALTER/DROP
    EVENT but not when just compiling the body of the event because
    in this case this operation is not needed, it takes memory and
    CPU time and at the end the result is not used. event_timed::definer
    is used only on SQLCOM_CREATE/ALTER/DROP_EVENT execution not on
    statement compilation.
  - add SHOW [FULL] EVENTS [FROM db] [LIKE pattern]
    in case of FULL and the user has PROCESS privilege then he will see
    also others' events in the current database, otherwise the output
    is the same as of SHOW EVENTS. Because the events are per DB only
    the events from the current database are shown. pattern is applied
    against event name. FROM db is self explanatory.
sql/table.h:
  add SCH_EVENTS as part of INFORMATION_SCHEMA
2006-01-30 13:15:23 +01:00
unknown
ea09d626a5 Merge ahristov@bk-internal.mysql.com:/home/bk/mysql-5.1-new
into lmy004.:/work/mysql-5.1-tt-copy-works


sql/event.cc:
  Auto merged
sql/event_executor.cc:
  Auto merged
sql/event_timed.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
2006-01-23 16:13:46 +01:00
unknown
3a8e50e082 fix for bug#16431 (Events: An event which alters itself disappears)
WL#1034 (Internal CRON)


mysql-test/r/events.result:
  add a test for to test bug #16431
mysql-test/t/events.test:
  results of new tests
sql/event.cc:
  - more debug info
  - pass info to evex_remove_from_cache() whether the operation 
    was drop or alter. this fixes possible bug that may lead to dropping
    of an event when it's altered. also fix for bug#16431
sql/event_executor.cc:
  be more verbose and throw more errors
sql/event_timed.cc:
  - add ` around the names of the db and the event_name and not
  their concatenation. remove ; from the end - unneeded. this fixes bug #16431,
  which was failing because after some recursion the query was ending on ;;
  which is normally an error in the parser because that's the delimiter
  
  - more debug info
  - don't execute lex_end() two times when there's a parse error or thd->is_fatal_error
2006-01-20 22:24:58 +01:00
unknown
6bd58a2a3c - fix bug #16435 (Weekly events execute every second) (WL#1034 Internal CRON)
Before the interval expression was considered to be in seconds, now it is
just a number and the type of interval is considered.

- this changeset introduces also fix for bug#16432 (Events: error re interval
  misrepresents the facts)
  the code of event_timed::set_interval() was refactored anyway so it is meaningful to
  fix the bug in the same changeset.


include/my_time.h:
  - move enum interval_type to include/my_time.h so it can be used by functions
    in the whole server
sql/event.cc:
  - don't use second_part
  - fix small problem with create event xyz, when xyz exists -> make it error
    instead of warning if create_if_not is false.
sql/event.h:
  pass thd to mark_last_executed() to be able to call thd->end_time()
sql/event_executor.cc:
  - pass thd to event_timed::compute_next_execution_time()
  - a bit more DBUG info in the server log
  - handle error returned by event_timed::compute_next_execution_time()
sql/event_priv.h:
  - define the maximal possible value for interval_value
sql/event_timed.cc:
  - more docs
  - add static get_next_time() which sums a TIME with an interval
  - fix bug #16435 (Weekly events execute every second)
  Before the interval expression was considered to be in seconds, now it is
  just a number and the type of interval is considered.
  - fix for bug#16432 (Events: error re interval misrepresents the facts)
    (return an error if a value is too big or is negative - errmsg changed)
sql/item_timefunc.cc:
  - export get_interval_date()
  - refactor Item_date_add_interval::get_date() and extract the core
    to date_add_interval() in time.cc so it can be reused by the
    scheduler code in event_timed.cc
sql/item_timefunc.h:
  - export get_interval_value() so it can be reused in event_timed.cc in
    function static get_next_time()
  - move enum interval_type to include/my_time.h so it can be used by functions
    in the whole server
sql/mysql_priv.h:
  export the new function date_add_interval() added to time.cc
sql/share/errmsg.txt:
  - change error message to be appropriate as fix for bug#16432
    (Events: error re interval misrepresents the facts)
sql/sql_yacc.yy:
  - change error message to be appropriate as fix for bug#16432
    (Events: error re interval misrepresents the facts)
sql/time.cc:
  extract the core of Item_date_add_interval::get_date()
  to a function per Serg's request. The code can be reused
  to add und substract interval from a date.
2006-01-18 20:41:22 +01:00
unknown
b8ce8ad1d5 WL #1034 (Internal CRON) pre-push fixes
after another merge fixes.


mysql-test/r/information_schema.result:
  WL #1034 (Internal CRON)
  fix result
mysql-test/r/mysqlcheck.result:
  WL #1034 (Internal CRON)
  fix result
mysql-test/r/sp.result:
  WL #1034 (Internal CRON)
  fix result
sql/event.cc:
  after fixes for WL1012 fix these to be able to compile
sql/event_timed.cc:
  after fixes for WL1012 fix these to be able to compile
sql/share/errmsg.txt:
  readd error messages removed during manual update
sql/sql_yacc.yy:
  fix sql_yacc.yy for WL#1034 (Internal CRON) after the manual
  merge. The merge wasn't good :(
2006-01-11 12:49:56 +01:00
unknown
f133a92312 WL 1034 update
(pre-push cleanups removing debugging code)


sql/event.cc:
  - comment
  - fix 80 cols
  - fix a crash when dropping a running event (after it has finished
    its work because the memory got freed in remove_from_cache but the event
    was still running)
sql/event.h:
  - add new method
sql/event_executor.cc:
  - remove printf-s
  - fix 80cols
  - fix message
2006-01-10 11:31:45 +01:00
unknown
f3aea47643 WL #1034 update
- fix problem with too long identifier name


sql/event.cc:
  report an error when identifier too long
sql/event_priv.h:
  name the enum
  fix truncation problem
sql/share/errmsg.txt:
  new error message
sql/sql_yacc.yy:
  remove debug info and whitespace
2005-12-28 18:29:32 +02:00
unknown
3a12408a70 WL #1034 (update)
- improve the stability of the executor
- make create event if not exists work as before


sql/event.cc:
  refactoring:
  - have only 1 routine for comparing TIME structures 
  fix:
  - after previous refactoring IF NOT EXISTS of CREATE EVENT did not work 
    anymore. Now it will work.
sql/event.h:
  update definitions
sql/event_executor.cc:
  - don't load DISABLED events
  - if an event is being disabled because of time restrictions - drop it from the 
    prio queue
  - move dropping to the worker process
sql/event_priv.h:
  - remove unneeded func
sql/share/errmsg.txt:
  fix error message
sql/sql_parse.cc:
  - support 0 rows affected when CREATE EVENT IF NOT EXISTS
2005-12-28 12:07:57 +02:00
unknown
9b323387b8 WL #1034 update
- fix one bug found by PeterG, namely bug #51

#there is a major problem currently after removing the specialised DYNAMIC_ARRAY as 
  storage for the events. I have to reintroduce similar storage, this time probably some
  linked list or maybe some API on top of DYNAMIC_ARRAY.


sql/event.cc:
  close the table
sql/event.h:
  change definition
sql/event_executor.cc:
  don't start the thread in advance
sql/event_timed.cc:
  - don't call evex_drop_event
  - quote the name during compilation to make create event `the rain in spain goes into the drain` not fail.
2005-12-20 14:21:02 +02:00
unknown
7634f7d60c WL #1034 update
- handle crashes where the table definition has been changed
  (different number of fields)


sql/event.cc:
  change the way table is opened
  check whether the number of fields is exact, otherwise report damaged table
sql/event_executor.cc:
  - move around some code
  - use the new way of table opening
sql/event_priv.h:
  - new declaration
sql/event_timed.cc:
  - now 0 is ok
2005-12-16 12:42:39 +01:00
unknown
48405ec751 WL#1034 update
- fix EVENT_ACL problem that GRANT ALL on some_db.* to someone@somewhere did not get to mysql.db
- fix crash when the following is executed :
  CREATE EVENT P() CREATE EVENT E ON SCHEDULER 1 SECOND DO ROLLBACK;
  (creation works as well as calling P() which creates the event).


mysql-test/lib/init_db.sql:
  - fix init_db.sql so add Event_priv to the database privs, many tests failed because of that
    ommision
  - remove the quotes from the column names
mysql-test/t/events.test:
  - fix the small test, don't create own db
scripts/mysql_fix_privilege_tables.sql:
  - fix that
sql/event.cc:
  - be defensive and don't crash if outside has already has opened some table
sql/event_executor.cc:
  - show in SHOW PROCESSLIST - "event_scheduler" as name of the user of the main thread
  - use "localhost" as the host where event_scheduler comes from
  - comment out some debug info, fix other debug info
sql/event_timed.cc:
  - enable EVENT creation inside SP. sphead from lex->sphead goes to et->sphead. it's there only
    if we compile the event. OTOH when doing 
    CREATE PROCEDURE PROC() CREATE EVENT SOME_EV ON SCHEDULE EVERY 1 SECOND DO ROLLBACK;
    I have only to get the body of the event which is anonymous SP. Before it being "compiled"
    but then freed without being used because a bit later it is compiled one more time before
    being put in the events cache. So it was good that the memory structures weren't reused but
    scrapped out. Now lex->sphead is not needed during event creation but only where the event's
    body starts and where it ends so to be able at later stage to compile this anonymous SP (the
    body of the event).
sql/sp_head.cc:
  - copy over a fix to a crash
sql/sql_acl.h:
  - fix privileges.
    There was _NO_ documentation about that. Another CHUNK had to be created to so EVENT_ACL gets shifted to
    it's place in the db table. So how this is calculated? EVENT_ACL is 1 << 26. Remember 26, see which poistion
    in the db table is EVENT_ACL, it's 17, counted from 0. 26 - 17 = 9, then shift it with 9.
    CHUNKS are created because in some cases some privileges are in chunks and they are shifted at once. There are
    few chunks of such privileges which has to be shifted to get to exactly the structure of mysql.db table.
sql/sql_parse.cc:
  - ok, we don't care anymore about lex->sphead because our sphead is lex->et->sphead
sql/sql_yacc.yy:
  - bail out if new event_timed returns 0x0
  - enable creation of an event inside a SP
    CREATE PROCEDURE P() CREATE EVENT E ON SCHEDULE EVERY 1 SECOND DO SELECT 1;
2005-12-15 14:12:28 +01:00
unknown
d22bb45cce WL#1034 (update)
- fixed silly bug, the main thread restarted but did not execute events,
  Quite currious why many calls to pthread_mutex_init() do not lead to abort()


sql/event.cc:
  - remove mysql_event_table_exists
  - fix possible crash when table is 0x0
sql/event_executor.cc:
  - make event_executor_running_global_var volatile
  - fix erroneous reinitilization of a mutex, why did it not crash in debug mode?
    why pthread_mutex_init() does not abort() in case the mutex was not deinitted
    beforehand?
  - first initialization of event_executor_running_global_var inside init_mutexes()
  - remove debug if()
sql/event_priv.h:
  - remove unneeded definitions
sql/event_timed.cc:
  make backup and then restore the open table state of thd
2005-12-13 23:10:29 +01:00
unknown
f92086d074 WL#1034 update
(cleanups, leaks fixed)


sql/event.cc:
  - update comments
  - remove dead code
  - event_timed is no more copied after allocation on a DYNAMIC_ARRAY
    because there is a problem when the array is reallocated - we get
    dangling pointers from the scheduling queue. anyway it makes little
    sense to keep them there except that cleaning is quite efficient but
    iterating over all events and cleaning them one by one is not that bad
    considering that happens only when the main scheduler thread is killed
    or during server shutdown.
sql/event_executor.cc:
  - DYNAMIC_ARRAY is no more
sql/event_priv.h:
  - remove unneeded code/defines. the scheduler's queue is of 
    type QUEUE and cannot run anymore on top of DYNAMIC_ARRAY
sql/event_timed.cc:
  - after parsing (in ::compile() ) destruct the event_timed object
sql/sql_parse.cc:
  in case of syntax error clean up lex->et because there could be an object
  created. as in the code the same is done for SPs.
2005-12-13 19:16:00 +01:00
unknown
112d408fe7 WL#1034 update
cleanup before throwin away DYNAMIC_ARRAY for event storage,
once reallocated I get dangling pointers so that's not good.
solution will be found however ;)


sql/event.cc:
  - remove unneeded variables
  - remove commented out code
  - remove non-cs compliant comment
  - fix a bug when removing from memory cache
  - better close the tables than relying on sql_parse.cc::do_command()
    to do that
sql/event_executor.cc:
  - cleanup
sql/event_priv.h:
  -cleanup
sql/event_timed.cc:
  cleanup
2005-12-13 13:21:11 +01:00
unknown
81eadfcac1 WL#1034 update
QUEUE implementation working now. this should be ready more or less
for testing once the debug output is being cleaned and some things
around DYNAMIC_ARRAY are cleaned
- fix handling in case of errors that lead to crashes, now no more crashes
  in case of table corruption and such.


include/queues.h:
  introduce a safe version of queue_insert that will extend the queue if
  necessary. the auto_extent is passed to the _ex version of init_queue()
mysys/queues.c:
  add init_queue_ex() implementation
  add queue_insert_safe() implementation
sql/event.cc:
  - move mysql_priv.h inclusion to event_priv.h
  - use a priority queue instead of DYNAMIC_ARRAY which is sorted
sql/event.h:
  reorder
sql/event_executor.cc:
  reorder
sql/event_priv.h:
  - reorder a bit
  - add macroses and functions for queue manipulation which stay on top
   of QUEUE (partly implemented for DYNAMIC_ARRAY but will be cleared to be
   only for QUEUE).
sql/event_timed.cc:
  allocate one more byte and zeroterminate, really
2005-12-12 21:19:19 +01:00
unknown
1c5573a47c WL #1034 update
- handle better non-latin1 identifiers


sql/event.cc:
  - introduce a wrapper to compare easily and correctly
  LEX_STRINGs
  - remove few unneeded variables
  - remove need_second_pass by restructuring the code. this brings
    performance boost because the code bails out from the loop once
    it hits what it looks for
  - handle ALTER EVENT name RENAME TO name  (throw an error message).
sql/event_executor.cc:
  - comment about DBUG_FAULTY_THR
  - indent fix
sql/event_timed.cc:
  - fix a problem when event name is not latin1. a cyrillic event name
    was crashing the parser so the I emulate SET NAMES utf8. The data is
    already in utf8, being loaded from the disk.
sql/share/errmsg.txt:
  add new error message
2005-12-08 20:37:54 +01:00
unknown
c1cb8db8ca - last bits of unneeded error checking in sql_parse.cc thrown away
- fix a bug introduced with last commit ALTER EVENT a RENAME TO b; failed
- misc


sql/event.cc:
  - rename evex_db_find_routine_aux() to evex_db_find_event_aux() (better name)
  - change parameter order of db_update_event()
  - last bits to handle errors as close as possible to the place they occur
  - fix a bug introduced with last commit: first check for overwriting and event and then
    check whether the original one exists
sql/event.h:
  add a new error code returned by event_timed::compile() in case of 
  error
sql/event_priv.h:
  rename
sql/event_timed.cc:
  - function rename
  - add a bit of doc
sql/share/errmsg.txt:
  - extend an error message so it's more informative
  - add a new error message
sql/sql_parse.cc:
  refactor the cases for CREATE/ALTER/DROP event so use as much common
  code as possible. last bits of error checking unneeded in sql_parse.cc
  thrwon out.
2005-12-08 15:34:11 +01:00
unknown
faa8995e7a WL #1034 updates after review
(strip m_ as prefix from member variables' names)


sql/event.cc:
  - change copyright years
  - remove m_ prefix from member variables (I liked m_)
  - reorder parameter in evex_update_event()
sql/event.h:
  - change copyright years
  - remove m_ prefix from member variables
  - declare some member variables as private (were public)
  - delete 0 is valid in C++ therefore don't embrace with if()
sql/event_executor.cc:
  - executor => scheduler in messages
  - fix a bug introduced in last commit -> typo in a mutex name
  - remove m_ prefix from member variables
sql/event_priv.h:
  - change copyright years
sql/event_timed.cc:
  - change copyright years
  - strip m_ as prefix from member variables' names
sql/sql_parse.cc:
  - strip m_ as prefix from member variables' names
sql/sql_yacc.yy:
  - strip m_ as prefix from member variables names
2005-12-08 00:17:05 +01:00
unknown
a4bcbd51d9 WL #1034 updates after review
sql/event.cc:
  - fix TODO (remove things already done)
  - check the length of the event's name and body during creation
    and report an error if longer than what can be fit into 
    mysql.event (nothing like non-strict mode here)
  - report to sql_parse.cc and error when open table failed, otherwise send_ok()
    was being called and the error have become an warning.
  - update function documentation a bit
  - evex_db_find_routine_aux returns 0 and not EVEX_OK
sql/event_executor.cc:
  - CS changes to definitions of the main and worker thread routines
  - reorder code a bit to prevent crashes because of reading of
    already freed data -> first wait all events to finish their work,
    namely all worker threads to finish, and then destroy in-memory
    structures
  - more error checking and error reporting at the place of failure.
sql/event_priv.h:
  code simplifying macro
sql/event_timed.cc:
  CS cosmetics
2005-12-07 22:29:00 +01:00
unknown
bc3708a5b9 WL#1034 ongoing updates after review
sql/event.cc:
  -my_error() as close as possible to the place where the error
   occurs.
  -a thought how to replicate events
  -use close_thread_tables() in some cases and for others rely on
   this call being done in sql_parse.cc::do_command()
sql/event.h:
  remove redundant defines
sql/event_executor.cc:
  - reenable the compilation again
  - don't backup the open_tables_state, it's not needed
sql/event_timed.cc:
  - inline a bit
  - comment added
sql/mysqld.cc:
  - start mysqld with --event-scheduler=0 by default
sql/share/errmsg.txt:
  3 new messages
sql/sql_parse.cc:
  remove now obsolete error checking - the errors are reported
  as closer as possible to the place where they are detected
sql/sql_yacc.yy:
  add WARNING message. fix a bug that was corrupting 
  thd->client_capabilites ->
  select count(*) from mysql.event
  was reporting : "Unknown table test.event"!!!
  Using temporal variable is nice but IMO quite error-prone.
2005-12-07 19:26:44 +01:00
unknown
7838d468ab WL#1034
make more independent of SP


sql/event.cc:
  use own routine - export it
sql/event_priv.h:
  export these two
sql/event_timed.cc:
  use own routine, don't rely on SP
sql/sp.cc:
  revert changes to SP
sql/sp.h:
  revert changes to SP
sql/sql_show.cc:
  rever changes to SP
2005-12-06 16:46:29 +01:00
unknown
70856a0d54 WL#1034
updated sources


sql/event.cc:
  update
  put some error calls to the places they occur
sql/event.h:
  - change the default (does not work in STRICT mode)
sql/event_executor.cc:
  move mutex initialization to evex_init_mutexes so init_events() can be reused when the
  main thread does not work and set global event_scheduler=1; (this will start the thread)
  The main thread is now visible with show processlist and can be killed.
sql/event_priv.h:
  don't use anymore SP for opening table
sql/event_timed.cc:
  don't use anymore SP routines for opening mysql.event
sql/mysqld.cc:
  shutdown_events() should be maximal at the end of the server because
  it destroys mutexes of EVEX. The call should not be in the main thread.
sql/set_var.cc:
  make sys_var_event_executor subclass sys_var_bool_ptr
  to overload ::update() method - needed to start a
  killed (non-running) evex main thread
sql/set_var.h:
  declare class sys_var_event_executor
sql/share/errmsg.txt:
  2 new messages
2005-12-06 16:15:29 +01:00