Don't write microseconds when Time.Nanosecond() == 0
Don't write microseconds when Time.Nanosecond() == 0

helight/helight_code,bookerzzz/mysql,springning/mysql,bookerzzz/mysql,helight/helight_code,aperera/mysql,siriele/mysql,LightKool/mysql-go,go-sql-driver/mysql,Frca/mysql,Vorstack/mysql,yonglehou/mysql,helight/helight_code,helight/helight_code,henrylee2cn/mysql,chinanjjohn2012/mysql,nanata1115/mysql,VividCortex/mysql,VividCortex/mysql,hyperworks/mysql,helight/helight_code,helight/helight_code,cw2018/mysql,yyljlyy/mysql,helight/helight_code,tmulchay/mysql,wfxiang08/mysql,rlowe/mysql,LightKool/mysql-go,netroby/mysql,segmentio/mysql,cxflag203/mysql,Go-SQL-Driver/MySQL,joshuaprunier/mysql,rafaeljusto/mysql,methane/mysql,helight/helight_code,roth1002/mysql,methane/mysql,sunjian1/mysql,segmentio/mysql,eklitzke/mysql,zhgo/mysql,helight/helight_code,hebihui/mysql,jockchou/mysql,muthusubbu459/mysql,Freeaqingme/golang-sql-driver-mysql