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  1. 31 Jan, 2008 1 commit
    • unknown's avatar
      Fixed bug in restoring auto-increment value in case of duplicate key with insert or update · ab0fa111
      unknown authored
      Fixed bug when calculating max_key_length that caused some ALTER TABLE to fail if MAX_ROWS was used.
      Use maria_block_size instead of MARIA_MIN_KEY_BLOCK_LENGTH
      Fixed bug when scanning table with BLOCK format for repair; If table was > bitmap coverage one page block was read twice which caused a lot of duplicate key errors
      Could not repeat Bug#34106 "auto_increment is reset to 1 when table is recovered from crash" after this patch.
      
      NOTE: This is an incompatible change, so one must do maria_chk -r on ones old Maria tables!
      Sorry, but this was needed to fix the bug with max_key_length and to be able to handle bigger key files with smaller key references
      
      
      cmd-line-utils/readline/readline.c:
        Fixed compiler warnings
      mysql-test/r/maria.result:
        Added more test of auto-increment handling
      mysql-test/t/maria.test:
        Added more test of auto-increment handling
      mysys/my_pread.c:
        Fixed wrong test
        Removed not needed tests (error is always 1 if readbytes != Count)
      mysys/my_read.c:
        Fixed wrong test
      storage/maria/ha_maria.cc:
        Disable LOAD INDEX until I got Sanja's extension to pagecache interface
      storage/maria/ma_blockrec.c:
        Ensure that info->last_auto_increment is reset properly
      storage/maria/ma_check.c:
        Fixed wrong printing of row number in case of duplicate key for --safe-repair
        Safety fix in recreate table so that Column numbers are given to maria_create() in original order
        Added missing HA_OPEN_FOR_REPAIR to maria_open()
        Fixed bug when scanning table with BLOCK format for repair; If table was > bitmap coverage one page block was read twice which caused a lot of duplicate key errors
      storage/maria/ma_create.c:
        Use correct value for how much free space there is on a key page
        Remember some missing table option when doing re-create.
        Removed optimization where last packed fields is unpacked; Caused problems for re-create.
      storage/maria/ma_delete.c:
        Ensure that info->last_auto_increment is reset properly
        Fix for update to restore autoincrement value on duplicate key
      storage/maria/ma_key_recover.c:
        Moved handling of restoring value of auto-increment in case of duplicate key from clr to undo
        This ensures the restoring works both for insert and update and also that this is symetrical to how the auto_increment value is stored
      storage/maria/ma_key_recover.h:
        Added new prototype
      storage/maria/ma_loghandler.c:
        Added hook to write_hook_for_undo_key_delete()
      storage/maria/ma_open.c:
        Fixed wrong calculation of max_key_file_length
      storage/maria/ma_page.c:
        Use maria_block_size instead of MARIA_MIN_KEY_BLOCK_LENGTH
        Increase internal buffer (safety fix)
      storage/maria/ma_search.c:
        Use maria_block_size instead of MARIA_MIN_KEY_BLOCK_LENGTH
        Note that this is an incompatible change, so one must do maria_chk -r on ones old Maria tables (sorry)
      storage/maria/ma_update.c:
        Ensure that info->last_auto_increment is reset properly
      storage/maria/ma_write.c:
        Ensure that info->last_auto_increment is reset properly
        Fix for update to restore autoincrement value on duplicate key
      storage/maria/maria_chk.c:
        Allow small page_buffer_size
        Fixed printing for --describe to better fit into 80 characters
      storage/maria/maria_def.h:
        Added comments
      ab0fa111
  2. 17 Jan, 2008 1 commit
    • unknown's avatar
      WL#3072 - Maria Recovery · 534417c2
      unknown authored
      Bulk insert: don't log REDO/UNDO for rows, log one UNDO which will
      truncate files; this is an optimization and a bugfix (table was left
      half-repaired by crash).
      Repair: mark table crashed-on-repair at start, bump skip_redo_lsn at start,
      this is easier for recovery (tells it to skip old REDOs or even UNDO
      phase) and user (tells it to repair) in case of crash, sync files
      in the end.
      Recovery skips missing or corrupted table and moves to next record
      (in REDO or UNDO phase) to be more robust; warns if happens in UNDO phase.
      Bugfix for UNDO_KEY_DELETE_WITH_ROOT (tested in ma_test_recovery)
      and maria_enable_indexes().
      Create missing bitmaps when needed (there can be more than one to create,
      in rare cases), log a record for this.
      
      
      include/myisamchk.h:
        new flag: bulk insert repair mustn't bump create_rename_lsn
      mysql-test/lib/mtr_report.pl:
        skip normal warning in maria-recovery.test
      mysql-test/r/maria-recovery.result:
        result: crash before bulk insert is committed, causes proper rollback,
        and crash right after OPTIMIZE replaces index file with new index file
        leads to table marked corrupted and recovery not failing.
      mysql-test/t/maria-recovery.test:
        - can't check the table or it would commit the transaction,
        but check is made after recovery.
        - test of crash before bulk-insert-with-repair is committed
        (to see if it is rolled back), and of crash after OPTIMIZE has replaced
        index file but not finished all operations (to see if recovery fails -
        it used to assert when trying to execute an old REDO on the new
        index).
      storage/maria/CMakeLists.txt:
        new file
      storage/maria/Makefile.am:
        new file
      storage/maria/ha_maria.cc:
        - If bulk insert on a transactional table using an index repair:
        table is initially empty, so don't log REDO/UNDO for data rows
        (optimization), just log an UNDO_BULK_INSERT_WITH_REPAIR
        which will, if executed, empty the data and index file. Re-enable
        logging in end_bulk_insert().
        - write log record for repair operation only after it's fully done,
        index sort including (maria_repair*() used to write the log record).
        - Adding back file->trn=NULL which was removed by mistake earlier.
      storage/maria/ha_maria.h:
        new member (see ha_maria.cc)
      storage/maria/ma_bitmap.c:
        Functions to create missing bitmaps:
        - one function which creates missing bitmaps in page cache, except
        the missing one with max offset which it does not put into page cache
        as it will be modified very soon.
        - one function which the one above calls, and creates bitmaps in page
        cache
        - one function to execute REDO_BITMAP_NEW_PAGE which uses the second
        one above.
      storage/maria/ma_blockrec.c:
        - when logging REDO_DELETE_ALL, not only 'records' and 'checksum'
        has to be reset under log's mutex.
        - execution of REDO_INSERT_ROW_BLOBS now checks the dirty pages' list
        - execution of UNDO_BULK_INSERT_WITH_REPAIR
      storage/maria/ma_blockrec.h:
        new functions
      storage/maria/ma_check.c:
        - table-flush-before-repair is moved to a separate function reused
        by maria_sort_index(); syncing is added
        - maria_repair() is allowed to re-enable logging only if it is the one
        which disabled it.
        - "_ma_flush_table_files_after_repair" was a bad name, it's not after
        repair now, and it should not sync as we do more changes to the files
        shortly after (sync is postponed to when writing the log record)
        - REDO_REPAIR record should be written only after all repair
        operations (in particular after sorting index in ha_mara::repair())
        - close to the end of repair by sort, flushing of pages must happen
        also in the non-quick case, to prepare for the sync at end.
        - in parallel repair, some page flushes are not needed as done
        by initialize_variables_for_repair().
      storage/maria/ma_create.c:
        Update skip_redo_lsn, create_rename_lsn optionally.
      storage/maria/ma_delete_all.c:
        Need to sync files at end of maria_delete_all_rows(), if transactional.
      storage/maria/ma_extra.c:
        During repair, we sometimes call _ma_flush_table_files() (via
        _ma_flush_table_files_before_swap()) while there is a WRITE_CACHE.
      storage/maria/ma_key_recover.c:
        - when we see CLR_END for UNDO_BULK_INSERT_WITH_REPAIR, re-enable
        indices.
        - fixing bug: _ma_apply_undo_key_delete() parsed UNDO_KEY_DELETE_WITH_ROOT
        wrongly, leading to recovery failure
      storage/maria/ma_key_recover.h:
        new prototype
      storage/maria/ma_locking.c:
        DBUG_VOID_RETURN missing
      storage/maria/ma_loghandler.c:
        UNDO for bulk insert with repair, and REDO for creating bitmaps.
        LOGREC_FIRST_FREE to not have to change the for() every time we
        add a new record type.
      storage/maria/ma_loghandler.h:
        new UNDO and REDO
      storage/maria/ma_open.c:
        Move share.kfile.file=kfile up a bit, so that _ma_update_state_lsns()
        can get its value, this fixes a bug where LSN_REPAIRED_BY_MARIA_CHK
        was not corrected on disk by maria_open().
        Store skip_redo_lsn in index' header.
        maria_enable_indexes() had a bug for BLOCK_RECORD, where an empty
        file has one page, not 0 bytes.
      storage/maria/ma_recovery.c:
        - Skip a corrupted, missing, or repaired-with-maria_chk, table in
        recovery: don't fail, just go to next REDO or UNDO; but if an UNDO
        is skipped in UNDO phase we issue warnings.
        - Skip REDO|UNDO in REDO phase if <skip_redo_lsn.
        - If UNDO phase fails, delete transactions to not make trnman
        assert.
        - Update skip_redo_lsn when playing REDO_CREATE_TABLE
        - Don't record UNDOs for old transactions which we don't know (long_trid==0)
        - Bugfix for UNDO_KEY_DELETE_WITH_ROOT (see ma_key_recover.c)
        - Execution of UNDO_BULK_INSERT_WITH_REPAIR
        - Don't try to find a page number in REDO_DELETE_ALL
        - Pieces moved to ma_recovery_util.c
      storage/maria/ma_rename.c:
        name change
      storage/maria/ma_static.c:
        I modified layout of the index' header (inserted skip_redo_lsn in its middle)
      storage/maria/ma_test2.c:
        allow breaking the test towards the end, tests execution of
        UNDO_KEY_DELETE_WITH_ROOT
      storage/maria/ma_test_recovery.expected:
        6 as testflag instead of 4
      storage/maria/ma_test_recovery:
        Increase the amount of rollback work to do when testing recovery
        with ma_test2; this reproduces the UNDO_KEY_DELETE_WITH_ROOT bug.
      storage/maria/maria_chk.c:
        skip_redo_lsn should be updated too, for consistency.
        Write a REDO_REPAIR after all operations (including sort-records)
        have been done.
        No reason to flush blocks after maria_chk_data_link() and
        maria_sort_records(), there is maria_close() in the end.
        write_log_record() is a function, to not clutter maria_chk().
      storage/maria/maria_def.h:
        New member skip_redo_lsn in the state, and comments
      storage/maria/maria_pack.c:
        skip_redo_lsn should be updated too, for consistency
      storage/maria/ma_recovery_util.c:
        _ma_redo_not_needed_for_page(), defined in ma_recovery.c, is needed
        by ma_blockrec.c; this causes link issues, resolved by putting
        _ma_redo_not_needed_for_page() into a new file (so that it is not
        in the same file as repair-related objects of ma_recovery.c).
      storage/maria/ma_recovery_util.h:
        new file
      534417c2
  3. 12 Dec, 2007 1 commit
    • unknown's avatar
      WL#3072 - Maria Recovery: recovery of state.auto_increment. · f7df9add
      unknown authored
      When we log UNDO_KEY_INSERT for an auto_inc key, we update
      state.auto_increment (not anymore at the end of maria_write() except
      if this is a non-transactional table). When Recovery sees UNDO_KEY_INSERT
      in the REDO phase, it reads the auto_inc value from it and updates
      state.auto_increment.
      
      
      mysql-test/r/maria-recovery.result:
        Without the code fix, there would be in CHECK TABLE:
        "Auto-increment value: 0 is smaller than max used value: 3"
        and no AUTO_INCREMENT= clause in SHOW CREATE TABLE.
      mysql-test/t/maria-recovery.test:
        Test of recovery of state.auto_increment: from an old table,
        does the replaying of the log set state.auto_increment to
        what it should be.
      storage/maria/ma_check.c:
        new way of calling ma_retrieve_auto_increment(): pass key
      storage/maria/ma_key.c:
        ma_retrieve_auto_increment() now operates directly with a pointer
        to the key and not on the record.
      storage/maria/ma_key_recover.c:
        dedicated write_hook_for_undo_key_insert(): sets state.auto_increment
        under log's mutex.
      storage/maria/ma_key_recover.h:
        Dedicated hook for UNDO_KEY_INSERT, to set state.auto_increment.
        Such hook needs a new member st_msg_write_hook_for_undo_key::auto_increment,
        which contains the auto_increment value inserted.
      storage/maria/ma_loghandler.c:
        UNDO_KEY_INSERT gets a dedicated write_hook, to set auto_increment.
      storage/maria/ma_recovery.c:
        When in the REDO phase we see UNDO_KEY_INSERT: if the state is older
        than this record, and the key is the auto_increment one, read
        the key's value from the log record and update state.auto_increment.
      storage/maria/ma_test_all.sh:
        use $maria_path to be able to run from /dev/shm (faster)
      storage/maria/ma_update.c:
        bool is more of C++, using my_bool.
        If table is transactional, state.auto_increment is already updated
        in write_hook_for_undo_key_insert().
      storage/maria/ma_write.c:
        If table is transactional, state.auto_increment is not updated at
        the end of maria_write() but rather in write_hook_for_undo_key_insert()
        (under log's mutex, so that a concurrent checkpoint does not read
        state.auto_increment while it is changing - corrupted).
        _ma_ck_write_btree_with_log() extracts the auto_increment value
        from the key, puts it into msg.auto_increment, and this is passed
        to write_hook_for_undo_key_insert().
      storage/maria/maria_def.h:
        change of prototype of ma_retrieve_auto_increment()
      storage/maria/maria_read_log.c:
        use default log file size. Use separate page caches for table
        and logs (needed if maria_block_size!=TRANSLOG_PAGE_SIZE).
      f7df9add
  4. 28 Nov, 2007 1 commit
    • unknown's avatar
      Fixed repair_by_sort to work with BLOCK_RECORD · 4e0964cb
      unknown authored
      Fixed bugs in undo logging
      Fixed bug where head block was split before min_row_length (caused Maria to believe row was crashed on read)
      Reserved place for reference-transid on key pages (for packing of transids)
      ALTER TABLE and INSERT ... SELECT now uses fast creation of index
          
      Known bugs:
      ma_test_recovery fails because of a bug in redo handling when log is cut directly after a redo (Guilhem knows how to fix)
      ma_test_recovery.excepted is not totally correct, because of the above bug
      mysqld sometimes fails to restart; Fails with error "end_of_redo_phase: Assertion `long_trid != 0' failed"; Guilhem to investigate
      
      
      include/maria.h:
        Prototype changes
        Added current_filepos to st_maria_sort_info
      mysql-test/r/maria.result:
        Updated results that changes as alter table and insert ... select now uses fast creation of index
      mysys/mf_iocache.c:
        Reset variable to gurard against double invocation
      storage/maria/ma_bitmap.c:
        Added _ma_bitmap_reset_cache() (needed for repair)
      storage/maria/ma_blockrec.c:
        Simplify code
        More initial allocations
        Fixed bug where head block was split before min_row_length (caused Maria to believe row was crashed on read)
      storage/maria/ma_blockrec.h:
        Moved TRANSID_SIZE to maria_def.h
        Added prototype for new functions
      storage/maria/ma_check.c:
        Simplicy code
        Fixed repair_by_sort to work with BLOCK_RECORD
        - When using BLOCK_RECORD or UNPACK create new Maria handle
        - Use common initializer function
        - Align code with maria_repair()
        
        Made some changes to maria_repair_parallel() to use common initializer function
        Removed ASK_MONTY section by fixing noted problem
      storage/maria/ma_close.c:
        Moved check for readonly to _ma_state_info_write()
      storage/maria/ma_key_recover.c:
        Use different log entries if key root changes or not.
        This fixed some bugs when tree grows
      storage/maria/ma_key_recover.h:
        Added keynr to st_msg_to_write_hook_for_undo_key
      storage/maria/ma_loghandler.c:
        Added INIT_LOGREC_UNDO_KEY_INSERT_WITH_ROOT
      storage/maria/ma_loghandler.h:
        Added INIT_LOGREC_UNDO_KEY_INSERT_WITH_ROOT
      storage/maria/ma_open.c:
        Added TRANSID to all key pages (for future compressing of trans id's)
        For compressed records, alloc a bit bigger buffer to avoid valgrind warnings
        If table is opened readonly, don't update state
      storage/maria/ma_packrec.c:
        Allocate bigger array for bit unpacking to avoid valgrind errors
      storage/maria/ma_recovery.c:
        Added UNDO_KEY_INSERT_WITH_ROOT & UNDO_KEY_DELETE_WITH_ROOT
      storage/maria/ma_sort.c:
        More logging
      storage/maria/ma_test_all.sh:
        More tests
      storage/maria/ma_test_recovery.expected:
        Update results
        Note that this is not complete becasue of a bug in recovery
      storage/maria/ma_test_recovery:
        Removed recreation of index (not needed when we have redo for index pages)
      storage/maria/maria_chk.c:
        When using flag --read-only, don't update status for files
        When using --unpack, don't use REPAIR_BY_SORT if other repair option is given
        Enable repair_by_sort for BLOCK records
        Removed not needed newline at start of --describe
      storage/maria/maria_def.h:
        Support for TRANSID_SIZE to key pages
      storage/maria/maria_read_log.c:
        renamed --only-display to --display-only
      4e0964cb
  5. 20 Nov, 2007 1 commit
    • unknown's avatar
      Fixes for redo/undo logging of key pages · 6b3743f0
      unknown authored
      New extendable format for maria_log_control file
      Fixed some compiler warnings
      
      
      include/maria.h:
        Added maria_disable_logging() and maria_enable_logging()
      mysql-test/include/maria_verify_recovery.inc:
        Updated tests now when key redo/undo works
      mysql-test/r/maria-recovery.result:
        Updated tests now when key redo/undo works
      storage/maria/ma_blockrec.c:
        Use unified CLR code
        Added rec_lsn for full pages
        Moved clr write hook to ma_key_recover.c
        Changed REDO code to keep pages pinned until undo
        Mark page_link's as changed
      storage/maria/ma_blockrec.h:
        Moved write_hook_for_clr_end() to ma_key_recover.c
      storage/maria/ma_check.c:
        Changed key check code to use PAGECACHE_READ_UNKNOWN_PAGE
        Fixed wrong warning when checking files after maria_pack
        When unpacking files, we have to use new keypos_to_recpos method
        When doing repair, we can disregard index key file pages in page cache
      storage/maria/ma_commit.c:
        Added simple enable/disable logging functions
        (Needed for recovery)
      storage/maria/ma_control_file.c:
        Make maria control file extendable without having to make it incompatible for older versions
      storage/maria/ma_control_file.h:
        New error messages
        Added CONTROL_FILE_VERSION
      storage/maria/ma_delete.c:
        Added redo/undo for key pages
        change_length -> changed_length to make things similar
        More comments & more DBUG
      storage/maria/ma_key_recover.c:
        Unified CLR method
        Moved here write_hook_for_clr_end() and common keypage log functions
        Changed REDO to keep pages pinned until undo
        Changed UNDO code to change key_root under log mutex
      storage/maria/ma_key_recover.h:
        New structures and functions
      storage/maria/ma_loghandler.c:
        Include needed files
      storage/maria/ma_open.c:
        Change maria_open() to use pread() instead of read()
      storage/maria/ma_page.c:
        Fixed bug in key_del handling
        Clear pages if IDENTICAL_PAGES_AFTER_RECOVERY is defined
      storage/maria/ma_pagecache.c:
        Indentation and spelling fixes
        More DBUG
        Added helper function: pagecache_block_link_to_buffer()
      storage/maria/ma_pagecache.h:
        Added pagecache_block_link_to_buffer()
      storage/maria/ma_recovery.c:
        Fixed state.changed
        Fixed that REDO keeps pages pinned until UNDO
        Some bug fixes from previous commit
        Fixes for UNDO/REDO of key pages
      storage/maria/ma_search.c:
        Fixed packing and storing of keys to provide more information to caller so
        that we can do efficent REDO logging of the changes.
      storage/maria/ma_test1.c:
        Fixed bug with not initialized variable
      storage/maria/ma_test2.c:
        Removed not used code
      storage/maria/ma_test_all.res:
        Updated results
      storage/maria/ma_test_all.sh:
        Changed one test to test more
        Removed timing tests as not relevant here
      storage/maria/ma_test_recovery.expected:
        Updated test result after redo/undo if key pages works
      storage/maria/ma_test_recovery:
        Updated test after redo/undo if key pages works
      storage/maria/ma_write.c:
        Moved some general log functions to ma_key_recover.c
        Fixed some bugs in undo
        Moved ma_log_split() to _ma_split_page()
        Small changes in some function arguments to be able to do redo logging
      storage/maria/maria_chk.c:
        disable logging while doing repair table
      storage/maria/maria_def.h:
        New function prototypes
        Move some structs and functions to ma_key_recover.c
      storage/maria/unittest/ma_control_file-t.c:
        Updated with patch from Sanja
        NOTE: This is not complete and need to be updated to new control file format
      storage/maria/unittest/ma_test_loghandler-t.c:
        Fixed compiler warning
      6b3743f0
  6. 14 Nov, 2007 1 commit
    • unknown's avatar
      First part of redo/undo for key pages · 21fd2a5a
      unknown authored
      Added key_nr to st_maria_keydef for faster keyinfo->keynr conversion
      For transactional tables, shift record number in keys up with 1 bit to have place to indicate if transid follows
      Checksum for MyISAM now ignores NULL and not used part of VARCHAR
      Renamed some variables that caused shadow compiler warnings
      Moved extra() call when waiting for tables to not be used to after tables are removed from cache.
      Fixed crashing bugs when using Maria TEMPORARY tables with TRUNCATE. Removed 'hack' code in sql directory to go around this bug.
      pagecache_unlock_by_ulink() now has extra argument to say if page was changed.
      Give error message if we fail to open control file
      Mark page cache variables as not flushable
      
      
      include/maria.h:
        Made min page cache larger (needed for pinning key page)
        Added key_nr to st_maria_keydef for faster keyinfo->keynr conversion
        Added write_comp_flag to move some runtime code to maria_open()
      include/my_base.h:
        Added new error message to be used when handler initialization failed
      include/my_global.h:
        Renamed dummy to swap_dummy to avoid conflicts with local 'dummy' variables
      include/my_handler.h:
        Added const to some parameters
      mysys/array.c:
        More DBUG
      mysys/my_error.c:
        Fixed indentation
      mysys/my_handler.c:
        Added const to some parameters
        Added missing error messages
      sql/field.h:
        Renamed variables to avoid variable shadowing
      sql/handler.h:
        Renamed parameter to avoid variable name conflict
      sql/item.h:
        Renamed variables to avoid variable shadowing
      sql/log_event_old.h:
        Renamed variables to avoid variable shadowing
      sql/set_var.h:
        Renamed variables to avoid variable shadowing
      sql/sql_delete.cc:
        Removed maria hack for temporary tables
        Fixed indentation
      sql/sql_table.cc:
        Moved extra() call when waiting for tables to not be used to after tables are removed from cache.
        This was needed to ensure we don't do a PREPARE_FOR_DROP or similar call while the table is still in use.
      sql/table.cc:
        Copy page_checksum from share
        Removed Maria hack
      storage/maria/Makefile.am:
        Added new files
      storage/maria/ha_maria.cc:
        Renamed records -> record_count and info -> create_info to avoid variable name conflicts
        Mark page cache variables as not flushable
      storage/maria/ma_blockrec.c:
        Moved _ma_unpin_all_pages() to ma_key_recover.c
        Moved init of info->pinned_pages to ma_open.c
        Moved _ma_finalize_row() to maria_key_recover.h
        Renamed some variables to avoid variable name conflicts
        Mark page_link.changed for blocks we change directly
        Simplify handling of undo link when writing LOGREC_UNDO_ROW_INSERT (old code crashed when having redo for index)
      storage/maria/ma_blockrec.h:
        Removed extra empty line
      storage/maria/ma_checkpoint.c:
        Remove not needed trnman.h
      storage/maria/ma_close.c:
        Free pinned pages (which are now always allocated)
      storage/maria/ma_control_file.c:
        Give error message if we fail to open control file
      storage/maria/ma_delete.c:
        Changes for redo logging (first part, logging of underflow not yet done)
        - Log undo-key-delete
        - Log delete of key
        - Updated arguments to _ma_fetch_keypage(), _ma_dispose(), _ma_write_keypage(), _ma_insert()
        - Added new arguments to some functions to be able to write redo information
        - Mark key pages as changed when we write with PAGECACHE_LOCK_LEFT_WRITELOCKED
        
        Remove one not needed _ma_write_keypage() in d_search() when upper level will do the write anyway
        Changed 2 bmove_upp() to bmove() as this made code easer to understand
        More function comments
        Indentation fixes
      storage/maria/ma_ft_update.c:
        New arguments to _ma_write_keypage()
      storage/maria/ma_loghandler.c:
        Fixed some DBUG_PRINT messages
        Simplify code
        Added new log entrys for key page redo
        Renamed some variables to avoid variable name shadowing
      storage/maria/ma_loghandler.h:
        Moved some defines here
        Added define for storing key number on key pages
        Added new translog record types
        Added enum for type of operations in LOGREC_REDO_INDEX
      storage/maria/ma_open.c:
        Always allocate info.pinned_pages (we need now also for normal key page usage)
        Update keyinfo->key_nr
        Added virtual functions to convert record position o number to be stored on key pages
        Update keyinfo->write_comp_flag to value of search flag to be used when writing key
      storage/maria/ma_page.c:
        Added redo for key pages
        - Extended _ma_fetch_keypage() with type of lock to put on page and address to used MARIA_PINNED_PAGE
        - _ma_fetch_keypage() now pin's pages if needed
        - Extended _ma_write_keypage() with type of locks to be used
        - ma_dispose() now locks info->s->state.key_del from other threads
        - ma_dispose() writes redo log record
        - ma_new() locks info->s->state.key_del from other threads if it was used
        - ma_new() now pins read page
        
        Other things:
        - Removed some not needed arguments from _ma_new() and _ma_dispose)
        - Added some new variables to simplify code
        - If EXTRA_DEBUG is used, do crc on full page to catch not unitialized bytes
      storage/maria/ma_pagecache.h:
        Applied patch from Sanja to add extra argument to pagecache_unlock_by_ulink() to mark if page was changed
        Added some defines for pagecache priority levels that one can use
      storage/maria/ma_range.c:
        Added new arguments for call to _ma_fetch_keypage()
      storage/maria/ma_recovery.c:
        - Added hooks for new translog types:
          REDO_INDEX, REDO_INDEX_NEW_PAGE, REDO_INDEX_FREE_PAGE, UNDO_KEY_INSERT, UNDO_KEY_DELETE and
          UNDO_KEY_DELETE_WITH_ROOT.
        - Moved variable declarations to start of function (portability fixes)
        - Removed some not needed initializations
        - Set only relevant state changes for each redo/undo entry
      storage/maria/lockman.c:
        Removed end space
      storage/maria/ma_check.c:
        Removed end space
      storage/maria/ma_create.c:
        Removed end space
      storage/maria/ma_locking.c:
        Removed end space
      storage/maria/ma_packrec.c:
        Removed end space
      storage/maria/ma_pagecache.c:
        Removed end space
      storage/maria/ma_panic.c:
        Removed end space
      storage/maria/ma_rt_index.c:
        Added new arguments for call to _ma_fetch_keypage(), _ma_write_keypage(), _ma_dispose() and _ma_new()
        Fixed indentation
      storage/maria/ma_rt_key.c:
        Added new arguments for call to _ma_fetch_keypage()
      storage/maria/ma_rt_split.c:
        Added new arguments for call to _ma_new()
        Use new keypage header
        Added new arguments for call to _ma_write_keypage()
      storage/maria/ma_search.c:
        Updated comments & indentation
        Added new arguments for call to _ma_fetch_keypage()
        Made some variables and arguments const
        Added virtual functions for converting row position to number to be stored in key
        use MARIA_RECORD_POS of record position instead of my_off_t
        Record in MARIA_KEY_PARAM how page was changed one key insert (needed for REDO)
      storage/maria/ma_sort.c:
        Removed end space
      storage/maria/ma_statrec.c:
        Updated arguments for call to _ma_rec_pos()
      storage/maria/ma_test1.c:
        Fixed too small buffer to init_pagecache()
        Fixed bug when using insert_count and test_flag
      storage/maria/ma_test2.c:
        Use more resonable pagecache size
        Remove not used code
        Reset blob_length to fix wrong output message
      storage/maria/ma_test_all.sh:
        Fixed wrong test
      storage/maria/ma_write.c:
        Lots of new code to handle REDO of key pages
        No logic changes because of REDO code, mostly adding new arguments and adding new code for logging 
        
        Added new arguments for calls to _ma_fetch_keypage(), _ma_write_keypage() and similar functions
        Move setting of comp_flag in ma_ck_wrte_btree() from runtime to maria_open()
        Zerofill new used pages for:
        - To remove possible sensitive data left in buffer
        - To get idenitical data on pages after running redo
        - Better compression of pages if archived
      storage/maria/maria_chk.c:
        Added information if table is crash safe
      storage/maria/maria_def.h:
        New virtual function to convert between record position on key and normal record position
        Aded mutex and extra variables to handle locking of share->state.key_del
        Moved some structure variables to get things more aligned
        Added extra arguments to MARIA_KEY_PARAM to be able to remember what was changed on key page on key insert
        Added argument to MARIA_PINNED_PAGE to indicate if page was changed
        Updated prototypes for functions
        Added some structures for signaling changes in REDO handling
      storage/maria/unittest/ma_pagecache_single.c:
        Updated arguments for changed function calls
      storage/myisam/mi_check.c:
        Made calc_check_checksum virtual
      storage/myisam/mi_checksum.c:
        Update checksums to ignore null columns
      storage/myisam/mi_create.c:
        Mark if table has null column (to know when we have to use mi_checksum())
      storage/myisam/mi_open.c:
        Added virtual function for calculating checksum to be able to easily ignore NULL fields
      storage/myisam/mi_test2.c:
        Fixed bug
      storage/myisam/myisamdef.h:
        Added virtual function for calculating checksum during check table
        Removed ha_key_cmp() as this is in handler.h
      storage/maria/ma_key_recover.c:
        New BitKeeper file ``storage/maria/ma_key_recover.c''
      storage/maria/ma_key_recover.h:
        New BitKeeper file ``storage/maria/ma_key_recover.h''
      storage/maria/ma_key_redo.c:
        New BitKeeper file ``storage/maria/ma_key_redo.c''
      21fd2a5a