主从库都是mysql,使用goldengate for mysql同步，发现索引没有同步，请问是什么原呢？

抽取进程参数如下

GGSCI (host134) 51> view params extep


EXTRACT extep
SETENV (NLS_LANG=AMERICAN_AMERICA.AL32UTF8)
sourcedb db_hxl@192.168.1.134:3306 userid goldengate password mysql
EXTTRAIL ./dirdat/ep
discardfile ./dirrpt/extep.dsc,append
TranLogOptions AltLogDest /opt/mysql5727/mysqllog/binlog/binlog.index
ddl include all