MySQL在ROW模式下如何通过binlog提取SQL语句

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Linux
基于row模式的binlog，生成DML(insert/update/delete)的rollback语句
通过mysqlbinlog -v 解析binlog生成可读的sql文件
提取需要处理的有效sql
  "### "开头的行.如果输入的start-position位于某个event group中间，则会导致"无法识别event"错误


将INSERT/UPDATE/DELETE 的sql反转,并且1个完整sql只能占1行
  INSERT: INSERT INTO => DELETE FROM, SET => WHERE
  UPDATE: WHERE => SET, SET => WHERE
  DELETE: DELETE FROM => INSERT INTO, WHERE => SET
用列名替换位置@{1,2,3}
  通过desc table获得列顺序及对应的列名
  特殊列类型value做特别处理
逆序


注意:
  表结构与现在的表结构必须相同[谨记]
  由于row模式是幂等的，并且恢复是一次性，所以只提取sql，不提取BEGIN/COMMIT
  只能对INSERT/UPDATE/DELETE进行处理

mysql> select * from yoon;
+----------+------------+-----------+---------------------+
| actor_id | first_name | last_name | last_update         |
+----------+------------+-----------+---------------------+
|        1 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        2 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        3 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        4 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        5 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        6 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        7 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        8 | HANK       | YOON      | 2006-02-15 04:34:33 |
|        9 | HANK       | YOON      | 2006-02-15 04:34:33 |
|       10 | HANK       | YOON      | 2006-02-15 04:34:33 |
|       11 | HANK       | YOON      | 2006-02-15 04:34:33 |
+----------+------------+-----------+---------------------+
11 rows in set (0.00 sec)


mysql> delete from yoon;
Query OK, 11 rows affected (1.03 sec)


mysql> select * from yoon;
Empty set (0.00 sec)

命令之间的空格一定要注意，否则就会无法提取SQL语句：
[root@hank-yoon data]# perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/export/data/mysql/data/yoon.sql' -u 'root' -p 'yoon'
Warning: Using a password on the command line interface can be insecure.
[root@hank-yoon data]# ls
auto.cnf            hank     ibdata2      ib_logfile1  modify.pl  mysql-bin.000001  performance_schema  test  yoon.sql
binlog-rollback.pl  ibdata1  ib_logfile0  ib_logfile2  mysql      mysql-bin.index   sakila              yoon
[root@hank-yoon data]# cat yoon.sql 
INSERT INTO `yoon`.`yoon` SET `actor_id`=11, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=10, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=9, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=8, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=7, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=6, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=5, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=4, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=3, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=2, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
INSERT INTO `yoon`.`yoon` SET `actor_id`=1, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);

mysql> INSERT INTO `yoon`.`yoon` SET `actor_id`=11, `first_name`='HANK', `last_name`='YOON', `last_update`=from_unixtime(1139949273);
Query OK, 1 row affected (0.01 sec)


mysql> select * from yoon;
+----------+------------+-----------+---------------------+
| actor_id | first_name | last_name | last_update         |
+----------+------------+-----------+---------------------+
|       11 | HANK       | YOON      | 2006-02-15 04:34:33 |
+----------+------------+-----------+---------------------+

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1. #!/usr/lib/perl -w

3. use strict;

4. use warnings;

6. use Class::Struct;

7. use Getopt::Long qw(:config no_ignore_case);                    # GetOption

8. # register handler system signals

9. use sigtrap 'handler', \&sig_int, 'normal-signals';

11. # catch signal

12. sub sig_int(){

13.     my ($signals) = @_;

14.     print STDERR "# Caught SIG$signals.\n";

15.     exit 1;

16. }

18. my %opt;

19. my $srcfile;

20. my $host = '127.0.0.1';

21. my $port = 3306;

22. my ($user,$pwd);

23. my ($MYSQL, $MYSQLBINLOG, $ROLLBACK_DML);

24. my $outfile = '/dev/null';

25. my (%do_dbs,%do_tbs);

27. # tbname=>tbcol, tbcol: @n=>colname,type

28. my %tbcol_pos;

30. my $SPLITER_COL = ',';

31. my $SQLTYPE_IST = 'INSERT';

32. my $SQLTYPE_UPD = 'UPDATE';

33. my $SQLTYPE_DEL = 'DELETE';

34. my $SQLAREA_WHERE = 'WHERE';

35. my $SQLAREA_SET = 'SET';

37. my $PRE_FUNCT = '========================== ';

39. # =========================================================

40. # 基于row模式的binlog，生成DML(insert/update/delete)的rollback语句

41. # 通过mysqlbinlog -v 解析binlog生成可读的sql文件

42. # 提取需要处理的有效sql

43. #     "### "开头的行.如果输入的start-position位于某个event group中间，则会导致"无法识别event"错误

44. #

45. # 将INSERT/UPDATE/DELETE 的sql反转,并且1个完整sql只能占1行

46. #     INSERT: INSERT INTO => DELETE FROM, SET => WHERE

47. #     UPDATE: WHERE => SET, SET => WHERE

48. #     DELETE: DELETE FROM => INSERT INTO, WHERE => SET

49. # 用列名替换位置@{1,2,3}

50. #     通过desc table获得列顺序及对应的列名

51. #     特殊列类型value做特别处理

52. # 逆序

53. #

54. # 注意:

55. #     表结构与现在的表结构必须相同[谨记]

56. #     由于row模式是幂等的，并且恢复是一次性，所以只提取sql，不提取BEGIN/COMMIT

57. #     只能对INSERT/UPDATE/DELETE进行处理

58. # ========================================================

59. sub main{

61.     # get input option

62.     &get_options();

64.     #

65.     &init_tbcol();

67.     #

68.     &do_binlog_rollback();

69. }

71. &main();

74. # ----------------------------------------------------------------------------------------

75. # Func : get options and set option flag

76. # ----------------------------------------------------------------------------------------

77. sub get_options{

78.     #Get options info

79.     GetOptions(\%opt,

80.         'help',                    # OUT : print help info

81.         'f|srcfile=s',            # IN : binlog file

82.         'o|outfile=s',            # out : output sql file

83.         'h|host=s',                # IN : host

84.         'u|user=s', # IN : user

85.         'p|password=s', # IN : password

86.         'P|port=i',                # IN : port

87.         'start-datetime=s',        # IN : start datetime

88.         'stop-datetime=s',        # IN : stop datetime

89.         'start-position=i',        # IN : start position

90.         'stop-position=i',        # IN : stop position

91.         'd|database=s',            # IN : database, split comma

92.         'T|table=s',            # IN : table, split comma

93.         'i|ignore',                # IN : ignore binlog check ddl and so on

94.         'debug',                # IN : print debug information

95.      ) or print_usage();

97.     if (!scalar(%opt)) {

98.         &print_usage();

99.     }

101.     # Handle for options

102.     if ($opt{'f'}){

103.         $srcfile = $opt{'f'};

104.     }else{

105.         &merror("please input binlog file");

106.     }

108.     $opt{'h'} and $host = $opt{'h'};

109.     $opt{'u'} and $user = $opt{'u'};

110.     $opt{'p'} and $pwd = $opt{'p'};

111.     $opt{'P'} and $port = $opt{'P'};

112.     if ($opt{'o'}) {

113.         $outfile = $opt{'o'};

114.         # 清空 outfile

115.         `echo '' > $outfile`;

116.     }

118.     #

119.     $MYSQL = qq{mysql -h$host -u$user -p'$pwd' -P$port};

120.     &mdebug("get_options::MYSQL\n\t$MYSQL");

122.     # 提取binlog,不需要显示列定义信息，用-v，而不用-vv

123.     $MYSQLBINLOG = qq{mysqlbinlog -v};

124.     $MYSQLBINLOG .= " --start-position=".$opt{'start-position'} if $opt{'start-position'};

125.     $MYSQLBINLOG .= " --stop-position=".$opt{'stop-position'} if $opt{'stop-postion'};

126.     $MYSQLBINLOG .= " --start-datetime='".$opt{'start-datetime'}."'" if $opt{'start-datetime'};

127.     $MYSQLBINLOG .= " --stop-datetime='$opt{'stop-datetime'}'" if $opt{'stop-datetime'};

128.     $MYSQLBINLOG .= " $srcfile";

129.     &mdebug("get_options::MYSQLBINLOG\n\t$MYSQLBINLOG");

131.     # 检查binlog中是否含有 ddl sql: CREATE|ALTER|DROP|RENAME

132.     &check_binlog() unless ($opt{'i'});

134.     # 不使用mysqlbinlog过滤，USE dbname;方式可能会漏掉某些sql，所以不在mysqlbinlog过滤

135.     # 指定数据库

136.     if ($opt{'d'}){

137.         my @dbs = split(/,/,$opt{'d'});

138.         foreach my $db (@dbs){

139.             $do_dbs{$db}=1;

140.         }

141.     }

143.     # 指定表

144.     if ($opt{'T'}){

145.         my @tbs = split(/,/,$opt{'T'});

146.         foreach my $tb (@tbs){

147.             $do_tbs{$tb}=1;

148.         }

149.     }

151.     # 提取有效DML SQL

152.     $ROLLBACK_DML = $MYSQLBINLOG." | grep '^### '";

153.     # 去掉注释: '### ' -> ''

154.     # 删除首尾空格

155.     $ROLLBACK_DML .= " | sed 's/###\\s*//g;s/\\s*\$//g'";

156.     &mdebug("rollback dml\n\t$ROLLBACK_DML");

157.     

158.     # 检查内容是否为空

159.     my $cmd = "$ROLLBACK_DML | wc -l";

160.     &mdebug("check contain dml sql\n\t$cmd");

161.     my $size = `$cmd`;

162.     chomp($size);

163.     unless ($size >0){

164.         &merror("binlog DML is empty:$ROLLBACK_DML");

165.     };

167. }    

170. # ----------------------------------------------------------------------------------------

171. # Func : check binlog contain DDL

172. # ----------------------------------------------------------------------------------------

173. sub check_binlog{

174.     &mdebug("$PRE_FUNCT check_binlog");

175.     my $cmd = "$MYSQLBINLOG ";

176.     $cmd .= " | grep -E -i '^(CREATE|ALTER|DROP|RENAME)' ";

177.     &mdebug("check binlog has DDL cmd\n\t$cmd");

178.     my $ddlcnt = `$cmd`;

179.     chomp($ddlcnt);

181.     my $ddlnum = `$cmd | wc -l`;

182.     chomp($ddlnum);

183.     my $res = 0;

184.     if ($ddlnum>0){

185.         # 在ddl sql前面加上前缀

186.         $ddlcnt = `echo '$ddlcnt' | sed 's/^//g'`;

187.         &merror("binlog contain $ddlnum DDL:$MYSQLBINLOG. ddl sql:\n$ddlcnt");

188.     }

190.     return $res;

191. }

194. # ----------------------------------------------------------------------------------------

195. # Func : init all table column order

196. #        if input --database --table params, only get set table column order

197. # ----------------------------------------------------------------------------------------

198. sub init_tbcol{

199.     &mdebug("$PRE_FUNCT init_tbcol");

200.     # 提取DML语句

201.     my $cmd .= "$ROLLBACK_DML | grep -E '^(INSERT|UPDATE|DELETE)'";

202.     # 提取表名，并去重

203.     #$cmd .= " | awk '{if (\$1 ~ \"^UPDATE\") {print \$2}else {print \$3}}' | uniq ";

204.     $cmd .= " | awk '{if (\$1 ~ \"^UPDATE\") {print \$2}else {print \$3}}' | sort | uniq ";

205.     &mdebug("get table name cmd\n\t$cmd");

206.     open ALLTABLE, "$cmd | " or die "can't open file:$cmd\n";

208.     while (my $tbname = ){

209.         chomp($tbname);

210.         #if (exists $tbcol_pos{$tbname}){

211.         #    next;

212.         #}

213.         &init_one_tbcol($tbname) unless (&ignore_tb($tbname));

214.         

215.     }

216.     close ALLTABLE or die "can't close file:$cmd\n";

218.     # init tb col

219.     foreach my $tb (keys %tbcol_pos){

220.         &mdebug("tbname->$tb");

221.         my %colpos = %{$tbcol_pos{$tb}};

222.         foreach my $pos (keys %colpos){

223.             my $col = $colpos{$pos};

224.             my ($cname,$ctype) = split(/$SPLITER_COL/, $col);

225.             &mdebug("\tpos->$pos,cname->$cname,ctype->$ctype");

226.         }

227.     }

228. };

231. # ----------------------------------------------------------------------------------------

232. # Func : init one table column order

233. # ----------------------------------------------------------------------------------------

234. sub init_one_tbcol{

235.     my $tbname = shift;

236.     &mdebug("$PRE_FUNCT init_one_tbcol");

237.     # 获取表结构及列顺序

238.     my $cmd = $MYSQL." --skip-column-names --silent -e 'desc $tbname'";

239.     # 提取列名，并拼接

240.     $cmd .= " | awk -F\'\\t\' \'{print NR\"$SPLITER_COL`\"\$1\"`$SPLITER_COL\"\$2}'";

241.     &mdebug("get table column infor cmd\n\t$cmd");

242.     open TBCOL,"$cmd | " or die "can't open desc $tbname;";

244.     my %colpos;

245.     while (my $line = ){

246.         chomp($line);

247.         my ($pos,$col,$coltype) = split(/$SPLITER_COL/,$line);

248.         &mdebug("linesss=$line\n\t\tpos=$pos\n\t\tcol=$col\n\t\ttype=$coltype");

249.         $colpos{$pos} = $col.$SPLITER_COL.$coltype;

250.     }

251.     close TBCOL or die "can't colse desc $tbname";

253.     $tbcol_pos{$tbname} = \%colpos;

254. }

257. # ----------------------------------------------------------------------------------------

258. # Func : rollback sql:    INSERT/UPDATE/DELETE

259. # ----------------------------------------------------------------------------------------

260. sub do_binlog_rollback{

261.     my $binlogfile = "$ROLLBACK_DML ";

262.     &mdebug("$PRE_FUNCT do_binlog_rollback");

264.     # INSERT|UPDATE|DELETE

265.     my $sqltype;

266.     # WHERE|SET

267.     my $sqlarea;

268.     

269.     my ($tbname, $sqlstr) = ('', '');

270.     my ($notignore, $isareabegin) = (0,0);

272.     # output sql file

273.     open SQLFILE, ">> $outfile" or die "Can't open sql file:$outfile";

275.     # binlog file

276.     open BINLOG, "$binlogfile |" or die "Can't open file: $binlogfile";

277.     while (my $line = ){

278.         chomp($line);

279.         if ($line =~ /^(INSERT|UPDATE|DELETE)/){

280.             # export sql

281.             if ($sqlstr ne ''){

282.                 $sqlstr .= ";\n";

283.                 print SQLFILE $sqlstr;

284.                 &mdebug("export sql\n\t".$sqlstr);

285.                 $sqlstr = '';

286.             }

288.             if ($line =~ /^INSERT/){

289.                 $sqltype = $SQLTYPE_IST;

290.                 $tbname = `echo '$line' | awk '{print \$3}'`;

291.                 chomp($tbname);

292.                 $sqlstr = qq{DELETE FROM $tbname};

293.             }elsif ($line =~ /^UPDATE/){

294.                 $sqltype = $SQLTYPE_UPD;

295.                 $tbname = `echo '$line' | awk '{print \$2}'`;

296.                 chomp($tbname);

297.                 $sqlstr = qq{UPDATE $tbname};

298.             }elsif ($line =~ /^DELETE/){

299.                 $sqltype = $SQLTYPE_DEL;    

300.                 $tbname = `echo '$line' | awk '{print \$3}'`;

301.                 chomp($tbname);

302.                 $sqlstr = qq{INSERT INTO $tbname};

303.             }

305.             # check ignore table

306.             if(&ignore_tb($tbname)){

307.                 $notignore = 0;

308.                 &mdebug("#IGNORE#:line:".$line);

309.                 $sqlstr = '';

310.             }else{

311.                 $notignore = 1;

312.                 &mdebug("#DO#:line:".$line);

313.             }

314.         }else {

315.             if($notignore){

316.                 &merror("can't get tbname") unless (defined($tbname));

317.                 if ($line =~ /^WHERE/){

318.                     $sqlarea = $SQLAREA_WHERE;

319.                     $sqlstr .= qq{ SET};

320.                     $isareabegin = 1;

321.                 }elsif ($line =~ /^SET/){

322.                     $sqlarea = $SQLAREA_SET;

323.                     $sqlstr .= qq{ WHERE};

324.                     $isareabegin = 1;

325.                 }elsif ($line =~ /^\@/){

326.                     $sqlstr .= &deal_col_value($tbname, $sqltype, $sqlarea, $isareabegin, $line);

327.                     $isareabegin = 0;

328.                 }else{

329.                     &mdebug("::unknown sql:".$line);

330.                 }

331.             }

332.         }

333.     }

334.     # export last sql

335.     if ($sqlstr ne ''){

336.         $sqlstr .= ";\n";

337.         print SQLFILE $sqlstr;

338.         &mdebug("export sql\n\t".$sqlstr);

339.     }

340.     

341.     close BINLOG or die "Can't close binlog file: $binlogfile";

343.     close SQLFILE or die "Can't close out sql file: $outfile";

345.     # 逆序

346.     # 1!G: 只有第一行不执行G, 将hold space中的内容append回到pattern space

347.     # h: 将pattern space 拷贝到hold space

348.     # $!d: 除最后一行都删除

349.     my $invert = "sed -i '1!G;h;\$!d' $outfile";

350.     my $res = `$invert`;

351.     &mdebug("inverter order sqlfile :$invert");

352. }

354. # ----------------------------------------------------------------------------------------

355. # Func : transfer column pos to name

356. #    deal column value

357. #

358. # &deal_col_value($tbname, $sqltype, $sqlarea, $isareabegin, $line);

359. # ----------------------------------------------------------------------------------------

360. sub deal_col_value($$$$$){

361.     my ($tbname, $sqltype, $sqlarea, $isareabegin, $line) = @_;

362.     &mdebug("$PRE_FUNCT deal_col_value");

363.     &mdebug("input:tbname->$tbname,type->$sqltype,area->$sqlarea,areabegin->$isareabegin,line->$line");

364.     my @vals = split(/=/, $line);

365.     my $pos = substr($vals[0],1);

366.     my $valstartpos = length($pos)+2;

367.     my $val = substr($line,$valstartpos);

368.     my %tbcol = %{$tbcol_pos{$tbname}};

369.     my ($cname,$ctype) = split(/$SPLITER_COL/,$tbcol{$pos});

370.     &merror("can't get $tbname column $cname type") unless (defined($cname) || defined($ctype));

371.     &mdebug("column infor:cname->$cname,type->$ctype");

373.     # join str

374.     my $joinstr;

375.     if ($isareabegin){

376.         $joinstr = ' ';

377.     }else{

378.         # WHERE 被替换为 SET, 使用 , 连接

379.         if ($sqlarea eq $SQLAREA_WHERE){

380.             $joinstr = ', ';

381.         # SET 被替换为 WHERE 使用 AND 连接

382.         }elsif ($sqlarea eq $SQLAREA_SET){

383.             $joinstr = ' AND ';

384.         }else{

385.             &merror("!!!!!!The scripts error");

386.         }

387.     }

388.     

389.     #

390.     my $newline = $joinstr;

392.     # NULL value

393.     if (($val eq 'NULL') && ($sqlarea eq $SQLAREA_SET)){

394.         $newline .= qq{ $cname IS NULL};

395.     }else{

396.         # timestamp: record seconds

397.         if ($ctype eq 'timestamp'){

398.             $newline .= qq{$cname=from_unixtime($val)};

399.         # datetime: @n=yyyy-mm-dd hh::ii::ss

400.         }elsif ($ctype eq 'datetime'){

401.             $newline .= qq{$cname='$val'};

402.         }else{

403.             $newline .= qq{$cname=$val};

404.         }

405.     }

406.     &mdebug("\told>$line\n\tnew>$newline");

407.     

408.     return $newline;

409. }

411. # ----------------------------------------------------------------------------------------

412. # Func : check is ignore table

413. # params: IN table full name #  format:`dbname`.`tbname`

414. # RETURN：

415. #        0 not ignore

416. #        1 ignore

417. # ----------------------------------------------------------------------------------------

418. sub ignore_tb($){

419.     my $fullname = shift;

420.     # 删除`

421.     $fullname =~ s/`//g;

422.     my ($dbname,$tbname) = split(/\./,$fullname);

423.     my $res = 0;

424.     

425.     # 指定了数据库

426.     if ($opt{'d'}){

427.         # 与指定库相同

428.         if ($do_dbs{$dbname}){

429.             # 指定表

430.             if ($opt{'T'}){

431.                 # 与指定表不同

432.                 unless ($do_tbs{$tbname}){

433.                     $res = 1;

434.                 }

435.             }

436.         # 与指定库不同

437.         }else{

438.             $res = 1;

439.         }

440.     }

441.     #&mdebug("Table check ignore:$fullname->$res");

442.     return $res;

443. }

446. # ----------------------------------------------------------------------------------------

447. # Func : print debug msg

448. # ----------------------------------------------------------------------------------------

449. sub mdebug{

450.     my (@msg) = @_;

451.     print "@msg\n" if ($opt{'debug'});

452. }

455. # ----------------------------------------------------------------------------------------

456. # Func : print error msg and exit

457. # ----------------------------------------------------------------------------------------

458. sub merror{

459.     my (@msg) = @_;

460.     print ":@msg\n";

461.     &print_usage();

462.     exit(1);

463. }

465. # ----------------------------------------------------------------------------------------

466. # Func : print usage

467. # ----------------------------------------------------------------------------------------

468. sub print_usage{

469.     print <

470. ==========================================================================================

471. Command line options :

472.     --help                # OUT : print help info

473.     -f, --srcfile            # IN : binlog file. [required]

474.     -o, --outfile            # OUT : output sql file. [required]

475.     -h, --host            # IN : host. default '127.0.0.1'

476.     -u, --user            # IN : user. [required]

477.     -p, --password            # IN : password. [required]

478.     -P, --port            # IN : port. default '3306'

479.     --start-datetime        # IN : start datetime

480.     --stop-datetime            # IN : stop datetime

481.     --start-position        # IN : start position

482.     --stop-position            # IN : stop position

483.     -d, --database            # IN : database, split comma

484.     -T, --table            # IN : table, split comma. [required] set -d

485.     -i, --ignore            # IN : ignore binlog check contain DDL(CREATE|ALTER|DROP|RENAME)

486.     --debug                # IN : print debug information

488. Sample :

489.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -u 'user' -p 'pwd'

490.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -u 'user' -p 'pwd' -i

491.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -u 'user' -p 'pwd' --debug

492.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -h '192.168.1.2' -u 'user' -p 'pwd' -P 3307

493.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -u 'user' -p 'pwd' --start-position=107

494.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -u 'user' -p 'pwd' --start-position=107 --stop-position=10000

495.    shell> perl binlog-rollback.pl -f 'mysql-bin.000001' -o '/tmp/t.sql' -u 'user' -p 'pwd' -d 'db1,db2'

496.    shell> perl binlog-rollback.pl -f 'mysql-bin.0000*' -o '/tmp/t.sql' -u 'user' -p 'pwd' -d 'db1,db2' -T 'tb1,tb2'

497. ==========================================================================================

498. EOF

499.     exit;

500. }

503. 1;

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