ElasticSearch filter by wildcard - symfony

Question

I'm trying to filter my results by wildcard character.
example of my records:
....
"_source" : {
"urlSlug" : "entry-title",
"revisions" : [
{
"title" : "Entry title",
"context" : "NKD"
}
]
}
each revision can have different context with different order.
And when I search for record I want to search only entities with context like "N". So I perform nested query with match_all and wildcard.
{"query":{"bool":{"must":[{"query_string":{"query":"*entry*"}},{"nested":{"path":"revisions","query":{"bool":{"should":[{"match_all":{}}],"filter":[{"wildcard":{"revisions.context":{"value":"*N*","boost":1}}}]}}}}]}},"size":10}
When I run query I get zero results. And Can't figure out how to restrict results.
I'm using for this FosElastica with following config:
indexes:
app:
types:
entity:
properties:
urlSlug: ~
revisions:
type: "nested"
properties:
title: { type: text,boost: 10 }
context: { type: text }
and my query builder looks like this:
$boolQuery = new ESQuery\BoolQuery();
$fieldQuery = new ESQuery\QueryString();
$fieldQuery->setQuery('*' . $query . '*');
$boolQuery->addMust($fieldQuery);
$nestedQuery = new ESQuery\Nested();
$nestedQuery->setPath('revisions');
$nestedBoolQuery = new ESQuery\BoolQuery();
$matchAllQuery = new ESQuery\MatchAll();
$nestedBoolQuery->addShould($matchAllQuery);
$filterQuery = new ESQuery\Wildcard();
$filterQuery->setValue('revisions.context','*N*');
$nestedBoolQuery->addFilter($filterQuery);
$nestedQuery->setQuery($nestedBoolQuery);
$boolQuery->addMust($nestedQuery);
$result = $finder->findHybrid($boolQuery,self::AUTOCOMPLETE_MAX_RESULTS);
ElasticSearch version 5.2.2

Answer 1

Well I did find out what is the problem in my query.
this is working one:
{"query":{"bool":{"must":[{"query_string":{"query":"*komi*"}}],"filter":[{"nested":{"path":"revisions","query":{"wildcard":{"revisions.context":{"value":"*n*","boost":1}}}}}]}},"size":10}
whole problem was uppercase wildcard search. I was looking for *N* and have zero results and with *n* it fine.