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Adds a note in the terms aggregation docs regarding pagination #28360

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Jan 25, 2018
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Adds a note in the terms aggregation docs regarding pagination #28360

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5 changes: 5 additions & 0 deletions docs/reference/aggregations/bucket/terms-aggregation.asciidoc
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Expand Up @@ -114,6 +114,11 @@ This means that if the number of unique terms is greater than `size`, the return
(it could be that the term counts are slightly off and it could even be that a term that should have been in the top
size buckets was not returned).

NOTE: If you want to retrieve **all** terms or all combinations of terms in a nested `terms` aggregation
you should use the <<search-aggregations-bucket-composite-aggregation,Composite>> aggregation which
allows to paginate over all possible terms rather than setting a size greater than the cardinality of the field in the
`terms` aggregation. The `terms` aggregation is meant to return the `top` terms and does not allow pagination.

[[search-aggregations-bucket-terms-aggregation-approximate-counts]]
==== Document counts are approximate

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