elasticsearch 搜索不支持单词的部分进行匹配

zjtest7-frontend:/usr/local/logstash-2.3.4/config# curl -XGET http://192.168.32.80:9200/logstash-2015.06.21/testlog/_search?q=fir

{"took":4,"timed_out":false,"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":0,"max_score":null,"hits":[]}}zjtest7-frontend:/usr/local/logstash-2.3.4/config#

zjtest7-frontend:/usr/local/logstash-2.3.4/config# curl -XGET http://192.168.32.80:9200/logstash-2015.06.21/testlog/_search?q=fir??

{"took":3,"timed_out":false,"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"max_score":1.0,"hits":[{"_index":"logstash-2015.06.21","_type":"testlog","_id":"AVbklB1aEY-

onx06xxpY","_score":1.0,"_source":{

"date" :"19999999999",

"user":"scan188",

"mesg":"first message into Elasticsearch"

}}]}}

zjtest7-frontend:/usr/local/logstash-2.3.4/config# curl -XGET http://192.168.32.80:9200/logstash-2015.06.21/testlog/_search?q=first

{"took":3,"timed_out":false,"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":1,"max_score":0.30685282,"hits":[{"_index":"logstash-2015.06.21","_type":"testlog","_id":"AVbklB1aEY-

onx06xxpY","_score":0.30685282,"_source":{

"date" :"19999999999",

"user":"scan188",

"mesg":"first message into Elasticsearch"

}}]}}zjtest7-frontend:/usr/local/logstash-2.3.4/config#