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17b4f99928
This commit is based on the work of Michal Schorm, rebased on the
earliest MariaDB version.
Th command line used to generate this diff was:
find ./ -type f \
-exec sed -i -e 's/Foundation, Inc., 59 Temple Place, Suite 330, Boston, /Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, /g' {} \; \
-exec sed -i -e 's/Foundation, Inc. 59 Temple Place.* Suite 330, Boston, /Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, /g' {} \; \
-exec sed -i -e 's/MA.*.....-1307.*USA/MA 02110-1335 USA/g' {} \; \
-exec sed -i -e 's/Foundation, Inc., 59 Temple/Foundation, Inc., 51 Franklin/g' {} \; \
-exec sed -i -e 's/Place, Suite 330, Boston, MA.*02111-1307.*USA/Street, Fifth Floor, Boston, MA 02110-1335 USA/g' {} \; \
-exec sed -i -e 's/MA.*.....-1307/MA 02110-1335/g' {} \;
133 lines
4.9 KiB
C
133 lines
4.9 KiB
C
/* Copyright (C) 2006 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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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 Street, Fifth Floor, Boston, MA 02110-1335 USA */
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/*
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Rename a table
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*/
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#include "ma_fulltext.h"
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#include "trnman_public.h"
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/**
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@brief renames a table
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@param old_name current name of table
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@param new_name table should be renamed to this name
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@return Operation status
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@retval 0 OK
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@retval !=0 Error
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*/
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int maria_rename(const char *old_name, const char *new_name)
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{
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char from[FN_REFLEN],to[FN_REFLEN];
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int data_file_rename_error;
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#ifdef USE_RAID
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uint raid_type=0,raid_chunks=0;
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#endif
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MARIA_HA *info;
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MARIA_SHARE *share;
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myf sync_dir;
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DBUG_ENTER("maria_rename");
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#ifdef EXTRA_DEBUG
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_ma_check_table_is_closed(old_name,"rename old_table");
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_ma_check_table_is_closed(new_name,"rename new table2");
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#endif
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/** @todo LOCK take X-lock on table */
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if (!(info= maria_open(old_name, O_RDWR, HA_OPEN_FOR_REPAIR)))
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DBUG_RETURN(my_errno);
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share= info->s;
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#ifdef USE_RAID
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raid_type = share->base.raid_type;
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raid_chunks = share->base.raid_chunks;
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#endif
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/*
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the renaming of an internal table to the final table (like in ALTER TABLE)
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is the moment when this table receives its correct create_rename_lsn and
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this is important; make sure transactionality has been re-enabled.
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*/
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DBUG_ASSERT(share->now_transactional == share->base.born_transactional);
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sync_dir= (share->now_transactional && !share->temporary &&
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!maria_in_recovery) ? MY_SYNC_DIR : 0;
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if (sync_dir)
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{
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LSN lsn;
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LEX_CUSTRING log_array[TRANSLOG_INTERNAL_PARTS + 2];
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uint old_name_len= strlen(old_name)+1, new_name_len= strlen(new_name)+1;
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log_array[TRANSLOG_INTERNAL_PARTS + 0].str= (uchar*)old_name;
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log_array[TRANSLOG_INTERNAL_PARTS + 0].length= old_name_len;
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log_array[TRANSLOG_INTERNAL_PARTS + 1].str= (uchar*)new_name;
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log_array[TRANSLOG_INTERNAL_PARTS + 1].length= new_name_len;
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/*
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For this record to be of any use for Recovery, we need the upper
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MySQL layer to be crash-safe, which it is not now (that would require
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work using the ddl_log of sql/sql_table.cc); when it is, we should
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reconsider the moment of writing this log record (before or after op,
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under THR_LOCK_maria or not...), how to use it in Recovery.
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For now it can serve to apply logs to a backup so we sync it.
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*/
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if (unlikely(translog_write_record(&lsn, LOGREC_REDO_RENAME_TABLE,
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&dummy_transaction_object, NULL,
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old_name_len + new_name_len,
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sizeof(log_array)/sizeof(log_array[0]),
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log_array, NULL, NULL) ||
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translog_flush(lsn)))
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{
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maria_close(info);
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DBUG_RETURN(1);
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}
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/*
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store LSN into file, needed for Recovery to not be confused if a
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RENAME happened (applying REDOs to the wrong table).
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*/
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if (_ma_update_state_lsns(share, lsn, share->state.create_trid, TRUE,
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TRUE))
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{
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maria_close(info);
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DBUG_RETURN(1);
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}
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}
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_ma_reset_state(info);
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maria_close(info);
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fn_format(from,old_name,"",MARIA_NAME_IEXT,MY_UNPACK_FILENAME|MY_APPEND_EXT);
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fn_format(to,new_name,"",MARIA_NAME_IEXT,MY_UNPACK_FILENAME|MY_APPEND_EXT);
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if (mysql_file_rename_with_symlink(key_file_kfile, from, to,
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MYF(MY_WME | sync_dir)))
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DBUG_RETURN(my_errno);
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fn_format(from,old_name,"",MARIA_NAME_DEXT,MY_UNPACK_FILENAME|MY_APPEND_EXT);
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fn_format(to,new_name,"",MARIA_NAME_DEXT,MY_UNPACK_FILENAME|MY_APPEND_EXT);
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data_file_rename_error=
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mysql_file_rename_with_symlink(key_file_dfile, from, to,
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MYF(MY_WME | sync_dir));
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if (data_file_rename_error)
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{
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/*
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now we have a renamed index file and a non-renamed data file, try to
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undo the rename of the index file.
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*/
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data_file_rename_error= my_errno;
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fn_format(from, old_name, "", MARIA_NAME_IEXT, MYF(MY_UNPACK_FILENAME|MY_APPEND_EXT));
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fn_format(to, new_name, "", MARIA_NAME_IEXT, MYF(MY_UNPACK_FILENAME|MY_APPEND_EXT));
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mysql_file_rename_with_symlink(key_file_kfile, to, from,
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MYF(MY_WME | sync_dir));
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}
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DBUG_RETURN(data_file_rename_error);
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}
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