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[[query-dsl-not-filter]]
=== Not Filter
A filter that filters out matched documents using a query. Can be placed
within queries that accept a filter.
[source,js]
--------------------------------------------------
{
"filtered" : {
"query" : {
"term" : { "name.first" : "shay" }
},
"filter" : {
"not" : {
"range" : {
"postDate" : {
"from" : "2010-03-01",
"to" : "2010-04-01"
}
}
}
}
}
}
--------------------------------------------------
Or, in a longer form with a `filter` element:
[source,js]
--------------------------------------------------
{
"filtered" : {
"query" : {
"term" : { "name.first" : "shay" }
},
"filter" : {
"not" : {
"filter" : {
"range" : {
"postDate" : {
"from" : "2010-03-01",
"to" : "2010-04-01"
}
}
}
}
}
}
}
--------------------------------------------------
[float]
==== Caching
The result of the filter is not cached by default. The `_cache` can be
set to `true` in order to cache it (though usually not needed). Here is
an example:
[source,js]
--------------------------------------------------
{
"filtered" : {
"query" : {
"term" : { "name.first" : "shay" }
},
"filter" : {
"not" : {
"filter" : {
"range" : {
"postDate" : {
"from" : "2010-03-01",
"to" : "2010-04-01"
}
}
},
"_cache" : true
}
}
}
}
--------------------------------------------------
|
