elastic search query parsing exception when adding term filter - lucene

Question

I'm not quite sure why the term filter "term": {"language": "Austrian"} is causing an elastic search parse exception.
The surprising thing is it works if I remove the query_string query.
Where would I put "term": {"language": "Austrian"} filter if it doesn't go there?
{
"query": {
"filtered": {
"query": {
"bool": {
"must": [
{
"terms": {
"status_type": [
"1",
"2",
"7"
]
}
}
]
}
},
"filter": {
"query": {
"query_string": {
"fields": [
[
"name",
"message"
]
],
"query": "Arnold AND Schwarz"
}
},
"term": { <-- Causes parse exception
"language": "Austrian"
}
}
}
},
"sort": [
{
"total": {
"order": "desc"
}
}
]
}

Answer 1

Inside your filter, you need a bool filter if you have more than one constraints, which is your case, since you have a query filter and a term filter. So the correct way of doing it is like this:
{
"query": {
"filtered": {
"query": {
"bool": {
"must": [
{
"terms": {
"status_type": [
"1",
"2",
"7"
]
}
}
]
}
},
"filter": {
"bool": { <---- add this
"must": [ <---- and this
{
"query": {
"query_string": {
"fields": [
[
"name",
"message"
]
],
"query": "Arnold AND Schwarz"
}
}
},
{
"term": {
"language": "Austrian"
}
}
]
}
}
}
},
"sort": [
{
"total": {
"order": "desc"
}
}
]
}
However, if I may add something, I would rewrite your query a bit differently and move the query_string over to the query part and the status_type term over to the filter part, it would feel more "natural". Also, in your query part you don't need a bool/must if you have only one constraint.
{
"query": {
"filtered": {
"query": {
"query_string": {
"fields": [
[
"name",
"message"
]
],
"query": "Arnold AND Schwarz"
}
},
"filter": {
"bool": {
"must": [
{
"terms": {
"status_type": [
"1",
"2",
"7"
]
}
},
{
"term": {
"language": "Austrian"
}
}
]
}
}
}
},
"sort": [
{
"total": {
"order": "desc"
}
}
]
}