Elasticsearch TermsFacet giving wrong count - elasticsearch

Question

I had problem with Elasticsearch Term Facet
i put data as follows :
curl -X DELETE "http://localhost:9200/articles'
curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "One", "tags" : "foo","datetime":"2005-12-23 23:10:52"}'
curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "Two", "tags" : "bar","datetime":"2005-12-23 23:10:53"}'
curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "Three", "tags" : "baz","datetime":"2005-12-23 23:10:54"}'
curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "four", "tags" : "baz","datetime":"2005-12-23 23:10:55"}'
curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "five", "tags" : "foo","datetime":"2005-12-23 23:10:56"}'
so whenever i query for terms facet it gives correct result following is my Elasticsearch query :
curl 'http://localhost:9200/articles/article/_search?pretty=true' -d '{
"query": {
"match_all": {}
},
"facets" : { "myfacet" : { "terms" : {"field" : "tags"}}
}
}'
But, when i added filter to Facet it won't show any facet count following is query :
curl 'http://localhost:9200/articles/article/_search?pretty=true' -d '{
"query": {
"match_all": {}
},
"facets" : {
"myfacet" : { "terms" : {"field" : "tags"},
"filter" : { "range" :{
"datetime" : {"from" : "2005-12-23 3:10:52","to" : "2005-12-23 23:10:56" }
}
}
}
}
}'
I get result as follows
facets" : {
"myfacet" : {
"_type" : "filter",
"count" : 0
}
}
so, anyone know's why it is giving such count.

Answer 1

The dates are in an invalid format, have a look at the supported date time formats that elasticsearch supports (too long, don't read, any date that is supported by jodatime is supported by elasticsearch).
http://www.elasticsearch.org/guide/reference/mapping/date-format.html
With that being said, you just have to modify your dates in your insert statements and put them in a valid date format, like 2005-12-23T23:10:55Z. Then just change your query to the proper time range in that time format, and that should give you the result.
Also be careful when writing these queries, as I noticed the date you used in your from clause is not valid.
Here are the modified curl scripts:
curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "One", "tags" : "foo","datetime":"2005-12-23T23:10:52Z"}'
curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "Two", "tags" : "bar","datetime":"2005-12-23T23:10:53Z"}'
curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "Three", "tags" : "baz","datetime":"2005-12-23T23:10:54Z"}'
curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "four", "tags" : "baz","datetime":"2005-12-23T23:10:55Z"}'
curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "five", "tags" : "foo","datetime":"2005-12-23T23:10:56Z"}'
and the modified search:
curl 'http://localhost:9200/articles/article/_search?pretty=true' -d '{
"query": {
"match_all": {}
},
"facets" : {
"myfacet" : {
"terms" : {"field" : "tags"},
"filter" : { "range" :{
"datetime" : {
"from" : "2005-12-23T23:10:52Z",
"to" : "2005-12-23T23:10:54Z"
}
}
}
}
}
}'
Hope this helps,
Matt