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47010ccffa
- Major rewrite of ddl_log.cc and ddl_log.h
- ddl_log.cc described in the beginning how the recovery works.
- ddl_log.log has unique signature and is dynamic. It's easy to
add more information to the header and other ddl blocks while still
being able to execute old ddl entries.
- IO_SIZE for ddl blocks is now dynamic. Can be changed without affecting
recovery of old logs.
- Code is more modular and is now usable outside of partition handling.
- Renamed log file to dll_recovery.log and added option --log-ddl-recovery
to allow one to specify the path & filename.
- Added ddl_log_entry_phase[], number of phases for each DDL action,
which allowed me to greatly simply set_global_from_ddl_log_entry()
- Changed how strings are stored in log entries, which allows us to
store much more information in a log entry.
- ddl log is now always created at start and deleted on normal shutdown.
This simplices things notable.
- Added probes debug_crash_here() and debug_simulate_error() to simply
crash testing and allow crash after a given number of times a probe
is executed. See comments in debug_sync.cc and rename_table.test for
how this can be used.
- Reverting failed table and view renames is done trough the ddl log.
This ensures that the ddl log is tested also outside of recovery.
- Added helper function 'handler::needs_lower_case_filenames()'
- Extend binary log with Q_XID events. ddl log handling is using this
to check if a ddl log entry was logged to the binary log (if yes,
it will be deleted from the log during ddl_log_close_binlogged_events()
- If a DDL entry fails 3 time, disable it. This is to ensure that if
we have a crash in ddl recovery code the server will not get stuck
in a forever crash-restart-crash loop.
mysqltest.cc changes:
- --die will now replace $variables with their values
- $error will contain the error of the last failed statement
storage engine changes:
- maria_rename() was changed to be more robust against crashes during
rename.
69 lines
2.4 KiB
C++
69 lines
2.4 KiB
C++
#ifndef SQL_VIEW_INCLUDED
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#define SQL_VIEW_INCLUDED
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/* -*- C++ -*- */
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/* Copyright (c) 2004, 2010, Oracle and/or its affiliates.
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Copyright (c) 2015, MariaDB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA
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*/
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#include "sql_class.h" /* Required by sql_lex.h */
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#include "sql_lex.h" /* enum_view_create_mode, enum_drop_mode */
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/* Forward declarations */
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class File_parser;
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/* Function declarations */
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bool create_view_precheck(THD *thd, TABLE_LIST *tables, TABLE_LIST *view,
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enum_view_create_mode mode);
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bool mysql_create_view(THD *thd, TABLE_LIST *view,
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enum_view_create_mode mode);
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bool mysql_make_view(THD *thd, TABLE_SHARE *share, TABLE_LIST *table,
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bool open_view_no_parse);
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bool mysql_drop_view(THD *thd, TABLE_LIST *view, enum_drop_mode drop_mode);
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bool check_key_in_view(THD *thd, TABLE_LIST * view);
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bool insert_view_fields(THD *thd, List<Item> *list, TABLE_LIST *view);
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int view_checksum(THD *thd, TABLE_LIST *view);
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int view_check(THD *thd, TABLE_LIST *view, HA_CHECK_OPT *check_opt);
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int view_repair(THD *thd, TABLE_LIST *view, HA_CHECK_OPT *check_opt);
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extern TYPELIB updatable_views_with_limit_typelib;
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bool check_duplicate_names(THD *thd, List<Item>& item_list,
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bool gen_unique_view_names);
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bool mysql_rename_view(THD *thd, const LEX_CSTRING *new_db,
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const LEX_CSTRING *new_name,
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const LEX_CSTRING *old_db,
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const LEX_CSTRING *old_name);
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void make_valid_column_names(THD *thd, List<Item> &item_list);
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#define VIEW_ANY_ACL (SELECT_ACL | UPDATE_ACL | INSERT_ACL | DELETE_ACL)
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extern const LEX_CSTRING view_type;
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void make_valid_column_names(List<Item> &item_list);
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#endif /* SQL_VIEW_INCLUDED */
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