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Add a warning about fields vs. source filtering. #14474

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Nov 9, 2015
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Add a warning about fields vs. source filtering. #14474

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5 changes: 5 additions & 0 deletions docs/reference/search/request/fields.asciidoc
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Original file line number Diff line number Diff line change
@@ -1,6 +1,11 @@
[[search-request-fields]]
=== Fields

WARNING: The `fields` parameter is about fields that are explicitly marked as
stored in the mapping, which is off by default and generally not recommended.
Use <<search-request-source-filtering,source filtering>> instead to select
subsets of the original source document to be returned.

Allows to selectively load specific stored fields for each document represented
by a search hit.

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