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[DOCS] Deterministic scripted queries are cached (#50408) #50411

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Dec 19, 2019
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[DOCS] Deterministic scripted queries are cached (#50408) #50411

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7 changes: 3 additions & 4 deletions docs/reference/modules/indices/request_cache.asciidoc
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Expand Up @@ -21,6 +21,9 @@ but it will cache `hits.total`, <<search-aggregations,aggregations>>, and
<<search-suggesters,suggestions>>.

Most queries that use `now` (see <<date-math>>) cannot be cached.

Scripted queries that use the API calls which are non-deterministic, such as
`Math.random()` or `new Date()` are not cached.
===================================

[float]
Expand Down Expand Up @@ -95,10 +98,6 @@ GET /my_index/_search?request_cache=true
-----------------------------
// TEST[continued]

IMPORTANT: If your query uses a script whose result is not deterministic (e.g.
it uses a random function or references the current time) you should set the
`request_cache` flag to `false` to disable caching for that request.

Requests where `size` is greater than 0 will not be cached even if the request cache is
enabled in the index settings. To cache these requests you will need to use the
query-string parameter detailed here.
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