{"index":["test0", "test1"]}
{"query" : {"match_all" : {}}}
{"index" : "test2,test3"}
{"query" : {"match_all" : {}}}
{"index" : ["test4", "test1"]}
{"query" : {"match_all" : {}}}
{"search_type" : "dfs_query_then_fetch"}
{"query" : {"match_all" : {}}}