Difference between revisions of "ElasticSearch Search"
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(Created page with "[http://www.elasticsearch.org/guide/reference/api/search/ official documentation] Search can be executed across indices and types, with query string as a parameter, or using a r...") |
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Revision as of 11:48, 23 January 2013
Search can be executed across indices and types, with query string as a parameter, or using a request body.
Search is broadcasted to all the index/indices shards; to limit the scope, you can use routing parameter - e.g. using user ID when searching through tweets by given user. The routing parameter may be multivalued, CSV.
Request Body
Request body uses Query DSL.
$ curl -XGET 'http://localhost:9200/twitter/tweet/_search' -d '{
"query" : {
"term" : { "user" : "kimchy" }
}
}'
{
"_shards":{
"total" : 5,
"successful" : 5,
"failed" : 0
},
"hits":{
"total" : 1,
"hits" : [
{
"_index" : "twitter",
"_type" : "tweet",
"_id" : "1",
"_source" : {
"user" : "kimchy",
"postDate" : "2009-11-15T14:12:12",
"message" : "trying out Elastic Search"
}
}
]
}
}
Parameters
- timeout - search timeout, bounding the search request to be executed within the specified time; default no timeout
- from - the starting from index of the hits to return; default 0
- size - the number of hits to return; default 10
- search_type - the type of the search operation to perform - dfs_query_then_fetch, dfs_query_and_fetch, query_then_fetch, query_and_fetch; defaults query_then_fetch; see Search Type for more details on the different types of search that can be performed
