fix bug in mysql: default value CURRENT_TIMESTAMP #1391

[Jrohy]

fix mysql table structure default value 'CURRENT_TIMESTAMP' and 'CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP' will lead to dump sql fail #1391

[codecov-io]

Codecov Report

Merging #1392 into master will decrease coverage by 0.02%.
The diff coverage is 40%.

@@            Coverage Diff             @@
##           master    #1392      +/-   ##
==========================================
- Coverage   57.46%   57.43%   -0.03%     
==========================================
  Files          44       44              
  Lines        7915     7918       +3     
==========================================
  Hits         4548     4548              
- Misses       2804     2805       +1     
- Partials      563      565       +2

Impacted Files	Coverage Δ
engine.go	62.59% <0%> (ø)	⬆️
dialect_mysql.go	58.55% <50%> (-0.23%)	⬇️
xorm.go	66.66% <0%> (-1.52%)	⬇️

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[Jrohy]

Fix import sql file split with ';' 提交修复的是导入sql文件时用';'改为';\n' , 因为表结构comment注释字段可以包含';', 例如:

CREATE TABLE IF NOT EXISTS `tb_tasklinkrule` (`ID` INT(11) PRIMARY KEY AUTO_INCREMENT NOT NULL COMMENT '自增长ID', `TASK_ID` INT(11) NULL COMMENT '任务ID', `LINKRULE_ID` INT(11) NULL COMMENT '规则ID; xxx') ENGINE=InnoDB DEFAULT CHARSET utf8;

注释里包含分号，则会导致sql切成不完整, 导致无法导入sql

[lunny]

I have merged #1437 . Is this still a problem?

[Jrohy]

no problem