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Regexp Filter
editRegexp Filter
editThe regexp filter is similar to the
regexp query, except
that it is cacheable and can speedup performance in case you are reusing
this filter in your queries.
See Regular expression syntax for details of the supported regular expression language.
{
"filtered": {
"query": {
"match_all": {}
},
"filter": {
"regexp":{
"name.first" : "s.*y"
}
}
}
}
You can also select the cache name and use the same regexp flags in the filter as in the query.
Note: You have to enable caching explicitly in order to have the
regexp filter cached.
{
"filtered": {
"query": {
"match_all": {}
},
"filter": {
"regexp":{
"name.first" : {
"value" : "s.*y",
"flags" : "INTERSECTION|COMPLEMENT|EMPTY"
},
"_name":"test",
"_cache" : true,
"_cache_key" : "key"
}
}
}
}