master分支整合mybatis，使用字段别名时，结果为空

[liujianrong]

master分支整合mybatis，使用字段别名时，查询出来结果为空，但是使用 _id as auser 可以正常取到结果。

sql语句：select message as auser from monitor

debug解析出来的dsl脚本：
{"from":0,"size":1000,"_source":{"includes":[],"excludes":[]},"script_fields":{"auser":{"script":{"source":"doc['message'].value","lang":"painless"},"ignore_failure":false}}}

[liujianrong]

已经解决！ 是本身解析成DSL语句的时候就已经有异常："reason": "Fielddata is disabled on text fields by default. Set fielddata=true on [host] in order to load fielddata in memory by uninverting the inverted index. Note that this can however use significant memory. Alternatively use a keyword field instead." 但是这个异常没有暴露暴露出来。现象就一直是get hits的结果集为空