• unknown's avatar
    Applied innodb-5.1-ss269 snapshot. · 050f14ac
    unknown authored
      Fixed BUGS:
      #3300: "UPDATE statement with no index column in where condition locks
        all rows"
        Implement semi-consistent read to reduce lock conflicts at the cost
        of breaking serializability.
        ha_innobase::unlock_row(): reset the "did semi consistent read" flag
        ha_innobase::was_semi_consistent_read(),
        ha_innobase::try_semi_consistent_read(): new methods
        row_prebuilt_t, row_create_prebuilt(): add field row_read_type for
        keeping track of semi-consistent reads
        row_vers_build_for_semi_consistent_read(),
        row_sel_build_committed_vers_for_mysql(): new functions
        row_search_for_mysql(): implement semi-consistent reads
    
      #9802: "Foreign key checks disallow alter table".
        Added test cases.
    
      #12456: "Cursor shows incorrect data - DML does not affect,
        probably caching"
        This patch implements a high-granularity read view to be used with
        cursors. In this high-granularity consistent read view modifications 
        done by the creating transaction after the cursor is created or 
       future transactions are not visible. But those modifications that 
       transaction did before the cursor was created are visible.
    
      #12701: "Support >4GB buffer pool and log files on 64-bit Windows"
        Do not call os_file_create_tmpfile() at runtime. Instead, create all
        tempfiles at startup and guard access to them with mutexes.
    
      #13778: "If FOREIGN_KEY_CHECKS=0, one can create inconsistent FOREIGN KEYs".
        When FOREIGN_KEY_CHECKS=0 we still need to check that datatypes between
        foreign key references are compatible.
    
      #14189: "VARBINARY and BINARY variables: trailing space ignored with InnoDB"
        innobase_init(): Assert that
        DATA_MYSQL_BINARY_CHARSET_COLL == my_charset_bin.number.
        dtype_get_pad_char(): Do not pad VARBINARY or BINARY columns.
        row_ins_cascade_calc_update_vec(): Refuse ON UPDATE CASCADE when trying
        to change the length of a VARBINARY column that refers to or is referenced
        by a BINARY column. BINARY columns are no longer padded on comparison,
        and thus they cannot be padded on storage either.
    
      #14747: "Race condition can cause btr_search_drop_page_hash_index() to crash"
        Note that buf_block_t::index should be protected by btr_search_latch
        or an s-latch or x-latch on the index page.
        btr_search_drop_page_hash_index(): Read block->index while holding
        btr_search_latch and use the cached value in the loop.  Remove some
        redundant assertions.
    
      #15108: "mysqld crashes when innodb_log_file_size is set > 4G"
    
      #15308: "Problem of Order with Enum Column in Primary Key"
    
      #15550: "mysqld crashes in printing a FOREIGN KEY error in InnoDB"
        row_ins_foreign_report_add_err(): When printing the parent record,
        use the index in the parent table rather than the index in the child table.
    
      #15653: "Slow inserts to InnoDB if many thousands of .ibd files"
        Keep track on unflushed modifications to file spaces.  When there are tens
        of thousands of file spaces, flushing all files in fil_flush_file_spaces()
        would be very slow.
        fil_flush_file_spaces(): Only flush unflushed file spaces.
        fil_space_t, fil_system_t: Add a list of unflushed spaces.
    
      #15991: "innodb-file-per-table + symlink database + rename = cr"
       os_file_handle_error(): Map the error codes EXDEV, ENOTDIR, and EISDIR
       to the new code OS_FILE_PATH_ERROR. Treat this code as OS_FILE_PATH_ERROR.
       This fixes the crash on RENAME TABLE when the .ibd file is a symbolic link
       to a different file system.
    
      #16157: "InnoDB crashes when main location settings are empty"
        This patch is from Heikki.
    
      #16298: "InnoDB segfaults in INSERTs in upgrade of 4.0 -> 5.0 tables
        with VARCHAR BINARY"
        dict_load_columns(): Set the charset-collation code
        DATA_MYSQL_BINARY_CHARSET_COLL for those binary string columns
        that lack a charset-collation code, i.e., the tables were created
        with an older version of MySQL/InnoDB than 4.1.2.
    
      #16229: "MySQL/InnoDB uses full explicit table locks in trigger processing"
        Take a InnoDB table lock only if user has explicitly requested a table
        lock. Added some additional comments to store_lock() and external_lock().
    
      #16387: "InnoDB crash when dropping a foreign key <table>_ibfk_0"
        Do not mistake TABLENAME_ibfk_0 for auto-generated id.
        dict_table_get_highest_foreign_id(): Ignore foreign constraint
        identifiers starting with the pattern TABLENAME_ibfk_0.
    
      #16582: "InnoDB: Error in an adaptive hash index pointer to page"
        Account for a race condition when dropping the adaptive hash index
        for a B-tree page.
        btr_search_drop_page_hash_index(): Retry the operation if a hash index
        with different parameters was built meanwhile.  Add diagnostics for the
        case that hash node pointers to the page remain.
        btr_search_info_update_hash(), btr_search_info_update_slow():
        Document the parameter "info" as in/out.
    
      #16814: "SHOW INNODB STATUS format error in LATEST FOREIGN KEY ERROR
        section"
        Add a missing newline to the LAST FOREIGN KEY ERROR section in SHOW
        INNODB STATUS output.
        dict_foreign_error_report(): Always print a newline after invoking
        dict_print_info_on_foreign_key_in_create_format().
    
      #16827: "Better InnoDB error message if ibdata files omitted from my.cnf"
    
      #17126: "CHECK TABLE on InnoDB causes a short hang during check of adaptive
        hash"
        CHECK TABLE blocking other queries, by releasing the btr_search_latch
        periodically during the adaptive hash table validation.
    
      #17405: "Valgrind: conditional jump or move depends on unititialised values"
        buf_block_init(): Reset magic_n, buf_fix_count and io_fix to avoid
        testing uninitialized variables.
    
    
    
    mysql-test/r/innodb.result:
      Applied innodb-5.1-ss269 snapshot.
    mysql-test/t/innodb.test:
      Applied innodb-5.1-ss269 snapshot.
    sql/ha_innodb.cc:
      Applied innodb-5.1-ss269 snapshot.
    sql/ha_innodb.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/btr/btr0btr.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/btr/btr0cur.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/btr/btr0pcur.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/btr/btr0sea.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/buf/buf0buf.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/buf/buf0flu.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/buf/buf0lru.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/buf/buf0rea.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/data/data0data.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/data/data0type.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/dict/dict0boot.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/dict/dict0crea.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/dict/dict0dict.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/dict/dict0load.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/dict/dict0mem.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/dyn/dyn0dyn.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/eval/eval0eval.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/eval/eval0proc.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/fil/fil0fil.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/fsp/fsp0fsp.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/fut/fut0lst.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/ha/ha0ha.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/ha/hash0hash.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/ibuf/ibuf0ibuf.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/btr0btr.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/btr0btr.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/btr0cur.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/btr0cur.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/btr0pcur.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/btr0pcur.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/btr0sea.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/btr0sea.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/btr0types.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/buf0buf.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/buf0buf.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/buf0flu.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/buf0flu.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/buf0lru.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/data0data.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/data0data.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/data0type.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/data0type.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/db0err.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/dict0boot.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/dict0boot.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/dict0crea.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/dict0dict.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/dict0dict.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/dict0load.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/dict0mem.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/dyn0dyn.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/dyn0dyn.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/eval0eval.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/eval0eval.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/eval0proc.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/eval0proc.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/fil0fil.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/fsp0fsp.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/fut0lst.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ha0ha.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/hash0hash.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/hash0hash.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ibuf0ibuf.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ibuf0ibuf.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/lock0lock.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/lock0types.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/log0log.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/log0log.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/log0recv.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/mach0data.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/mach0data.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/mem0dbg.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/mem0dbg.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/mem0mem.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/mem0mem.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/mem0pool.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/mtr0log.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/mtr0mtr.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/mtr0mtr.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/os0file.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/os0proc.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/os0sync.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/os0sync.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/os0thread.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/page0cur.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/page0cur.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/page0page.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/page0page.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/page0types.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/pars0grm.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/pars0opt.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/pars0pars.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/pars0sym.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/pars0types.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/que0que.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/que0que.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/que0types.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/read0read.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/read0read.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/rem0cmp.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/rem0cmp.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/rem0rec.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/rem0rec.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0ins.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0mysql.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0purge.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0row.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0row.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0sel.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0sel.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0types.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0uins.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0umod.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0undo.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0upd.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0upd.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/row0vers.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/srv0srv.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/srv0start.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/sync0arr.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/sync0rw.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/sync0rw.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/sync0sync.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/sync0sync.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0purge.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0purge.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0rec.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0roll.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0rseg.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0rseg.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0sys.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0sys.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0trx.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0trx.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0types.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0undo.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0undo.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/trx0xa.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/univ.i:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/usr0sess.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/usr0types.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ut0byte.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ut0byte.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ut0dbg.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ut0lst.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ut0mem.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ut0mem.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ut0rnd.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ut0rnd.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ut0sort.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ut0ut.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/include/ut0ut.ic:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/lock/lock0lock.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/log/log0log.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/log/log0recv.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/mach/mach0data.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/mem/mem0dbg.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/mem/mem0mem.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/mem/mem0pool.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/mtr/mtr0log.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/mtr/mtr0mtr.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/os/os0file.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/os/os0proc.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/os/os0sync.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/os/os0thread.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/page/page0cur.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/page/page0page.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/pars/lexyy.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/pars/pars0grm.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/pars/pars0grm.h:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/pars/pars0grm.y:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/pars/pars0lex.l:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/pars/pars0opt.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/pars/pars0pars.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/pars/pars0sym.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/que/que0que.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/read/read0read.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/rem/rem0cmp.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/rem/rem0rec.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/row/row0ins.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/row/row0mysql.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/row/row0purge.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/row/row0row.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/row/row0sel.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/row/row0uins.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/row/row0umod.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/row/row0undo.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/row/row0upd.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/row/row0vers.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/srv/srv0que.c:
      Applied innodb-5.1-ss269 snapshot.
    storage/innobase/srv/srv0srv.c:
      Applied innodb-5.1-ss269 snapshot.
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trx0roll.h 10.3 KB
/******************************************************
Transaction rollback

(c) 1996 Innobase Oy

Created 3/26/1996 Heikki Tuuri
*******************************************************/

#ifndef trx0roll_h
#define trx0roll_h

#include "univ.i"
#include "trx0trx.h"
#include "trx0types.h"
#include "mtr0mtr.h"
#include "trx0sys.h"

/***********************************************************************
Returns a transaction savepoint taken at this point in time. */

trx_savept_t
trx_savept_take(
/*============*/
			/* out: savepoint */
	trx_t*	trx);	/* in: transaction */
/***********************************************************************
Creates an undo number array. */

trx_undo_arr_t*
trx_undo_arr_create(void);
/*=====================*/
/***********************************************************************
Frees an undo number array. */

void
trx_undo_arr_free(
/*==============*/
	trx_undo_arr_t*	arr);	/* in: undo number array */
/***********************************************************************
Returns pointer to nth element in an undo number array. */
UNIV_INLINE
trx_undo_inf_t*
trx_undo_arr_get_nth_info(
/*======================*/
				/* out: pointer to the nth element */
	trx_undo_arr_t*	arr,	/* in: undo number array */
	ulint		n);	/* in: position */
/***************************************************************************
Tries truncate the undo logs. */

void
trx_roll_try_truncate(
/*==================*/
	trx_t*	trx);	/* in: transaction */
/************************************************************************
Pops the topmost record when the two undo logs of a transaction are seen
as a single stack of records ordered by their undo numbers. Inserts the
undo number of the popped undo record to the array of currently processed
undo numbers in the transaction. When the query thread finishes processing
of this undo record, it must be released with trx_undo_rec_release. */

trx_undo_rec_t*
trx_roll_pop_top_rec_of_trx(
/*========================*/
				/* out: undo log record copied to heap, NULL
				if none left, or if the undo number of the
				top record would be less than the limit */
	trx_t*		trx,	/* in: transaction */
	dulint		limit,	/* in: least undo number we need */
	dulint*		roll_ptr,/* out: roll pointer to undo record */
	mem_heap_t*	heap);	/* in: memory heap where copied */
/************************************************************************
Reserves an undo log record for a query thread to undo. This should be
called if the query thread gets the undo log record not using the pop
function above. */

ibool
trx_undo_rec_reserve(
/*=================*/
			/* out: TRUE if succeeded */
	trx_t*	trx,	/* in: transaction */
	dulint	undo_no);/* in: undo number of the record */
/***********************************************************************
Releases a reserved undo record. */

void
trx_undo_rec_release(
/*=================*/
	trx_t*	trx,	/* in: transaction */
	dulint	undo_no);/* in: undo number */
/*************************************************************************
Starts a rollback operation. */

void
trx_rollback(
/*=========*/
	trx_t*		trx,	/* in: transaction */
	trx_sig_t*	sig,	/* in: signal starting the rollback */
	que_thr_t**	next_thr);/* in/out: next query thread to run;
				if the value which is passed in is
				a pointer to a NULL pointer, then the
				calling function can start running
				a new query thread */
/***********************************************************************
Rollback or clean up transactions which have no user session. If the
transaction already was committed, then we clean up a possible insert
undo log. If the transaction was not yet committed, then we roll it back.
Note: this is done in a background thread. */

#ifndef __WIN__
void*
#else
ulint
#endif
trx_rollback_or_clean_all_without_sess(
/*===================================*/
			/* out: a dummy parameter */
	void*	arg __attribute__((unused)));
			/* in: a dummy parameter required by
			os_thread_create */
/********************************************************************
Finishes a transaction rollback. */

void
trx_finish_rollback_off_kernel(
/*===========================*/
	que_t*		graph,	/* in: undo graph which can now be freed */
	trx_t*		trx,	/* in: transaction */
	que_thr_t**	next_thr);/* in/out: next query thread to run;
				if the value which is passed in is
				a pointer to a NULL pointer, then the
				calling function can start running
				a new query thread; if this parameter is
				NULL, it is ignored */
/********************************************************************
Builds an undo 'query' graph for a transaction. The actual rollback is
performed by executing this query graph like a query subprocedure call.
The reply about the completion of the rollback will be sent by this
graph. */

que_t*
trx_roll_graph_build(
/*=================*/
			/* out, own: the query graph */
	trx_t*	trx);	/* in: trx handle */
/*************************************************************************
Creates a rollback command node struct. */

roll_node_t*
roll_node_create(
/*=============*/
				/* out, own: rollback node struct */
	mem_heap_t*	heap);	/* in: mem heap where created */
/***************************************************************
Performs an execution step for a rollback command node in a query graph. */

que_thr_t*
trx_rollback_step(
/*==============*/
				/* out: query thread to run next, or NULL */
	que_thr_t*	thr);	/* in: query thread */
/***********************************************************************
Rollback a transaction used in MySQL. */

int
trx_rollback_for_mysql(
/*===================*/
			/* out: error code or DB_SUCCESS */
	trx_t*	trx);	/* in: transaction handle */
/***********************************************************************
Rollback the latest SQL statement for MySQL. */

int
trx_rollback_last_sql_stat_for_mysql(
/*=================================*/
			/* out: error code or DB_SUCCESS */
	trx_t*	trx);	/* in: transaction handle */
/***********************************************************************
Rollback a transaction used in MySQL. */

int
trx_general_rollback_for_mysql(
/*===========================*/
				/* out: error code or DB_SUCCESS */
	trx_t*		trx,	/* in: transaction handle */
	ibool		partial,/* in: TRUE if partial rollback requested */
	trx_savept_t*	savept);/* in: pointer to savepoint undo number, if
				partial rollback requested */
/***********************************************************************
Rolls back a transaction back to a named savepoint. Modifications after the
savepoint are undone but InnoDB does NOT release the corresponding locks
which are stored in memory. If a lock is 'implicit', that is, a new inserted
row holds a lock where the lock information is carried by the trx id stored in
the row, these locks are naturally released in the rollback. Savepoints which
were set after this savepoint are deleted. */

ulint
trx_rollback_to_savepoint_for_mysql(
/*================================*/
						/* out: if no savepoint
						of the name found then
						DB_NO_SAVEPOINT,
						otherwise DB_SUCCESS */
	trx_t*		trx,			/* in: transaction handle */
	const char*	savepoint_name,		/* in: savepoint name */
	ib_longlong*	mysql_binlog_cache_pos);/* out: the MySQL binlog cache
						position corresponding to this
						savepoint; MySQL needs this
						information to remove the
						binlog entries of the queries
						executed after the savepoint */
/***********************************************************************
Creates a named savepoint. If the transaction is not yet started, starts it.
If there is already a savepoint of the same name, this call erases that old
savepoint and replaces it with a new. Savepoints are deleted in a transaction
commit or rollback. */

ulint
trx_savepoint_for_mysql(
/*====================*/
						/* out: always DB_SUCCESS */
	trx_t*		trx,			/* in: transaction handle */
	const char*	savepoint_name,		/* in: savepoint name */
	ib_longlong	binlog_cache_pos);	/* in: MySQL binlog cache
						position corresponding to this
						connection at the time of the
						savepoint */

/***********************************************************************
Releases a named savepoint. Savepoints which
were set after this savepoint are deleted. */

ulint
trx_release_savepoint_for_mysql(
/*============================*/
						/* out: if no savepoint
						of the name found then
						DB_NO_SAVEPOINT,
						otherwise DB_SUCCESS */
	trx_t*		trx,			/* in: transaction handle */
	const char*	savepoint_name);	/* in: savepoint name */

/***********************************************************************
Frees savepoint structs. */

void
trx_roll_savepoints_free(
/*=====================*/
	trx_t*			trx,	/* in: transaction handle */
	trx_named_savept_t*	savep);	/* in: free all savepoints > this one;
					if this is NULL, free all savepoints
					of trx */

extern sess_t*		trx_dummy_sess;

/* A cell in the array used during a rollback and a purge */
struct	trx_undo_inf_struct{
	dulint	trx_no;		/* transaction number: not defined during
				a rollback */
	dulint	undo_no;	/* undo number of an undo record */
	ibool	in_use;		/* TRUE if the cell is in use */
};

/* During a rollback and a purge, undo numbers of undo records currently being
processed are stored in this array */

struct trx_undo_arr_struct{
	ulint		n_cells;	/* number of cells in the array */
	ulint		n_used;		/* number of cells currently in use */
	trx_undo_inf_t*	infos;		/* the array of undo infos */
	mem_heap_t*	heap;		/* memory heap from which allocated */
};

/* Rollback command node in a query graph */
struct roll_node_struct{
	que_common_t	common;	/* node type: QUE_NODE_ROLLBACK */
	ulint		state;	/* node execution state */
	ibool		partial;/* TRUE if we want a partial rollback */
	trx_savept_t	savept;	/* savepoint to which to roll back, in the
				case of a partial rollback */
};

/* A savepoint set with SQL's "SAVEPOINT savepoint_id" command */
struct trx_named_savept_struct{
	char*		name;		/* savepoint name */
	trx_savept_t	savept;		/* the undo number corresponding to
					the savepoint */
	ib_longlong	mysql_binlog_cache_pos;
					/* the MySQL binlog cache position
					corresponding to this savepoint, not
					defined if the MySQL binlogging is not
					enabled */
	UT_LIST_NODE_T(trx_named_savept_t)
			trx_savepoints;	/* the list of savepoints of a
					transaction */
};

/* Rollback node states */
#define ROLL_NODE_SEND	1
#define ROLL_NODE_WAIT	2

#ifndef UNIV_NONINL
#include "trx0roll.ic"
#endif

#endif