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[DOCS] Document index.query.default_field index setting #69922

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jrodewig merged 5 commits into from
Mar 17, 2021
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[DOCS] Document index.query.default_field index setting #69922

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[DOCS] Document `index.query.default_field` index setting
jrodewig Mar 3, 2021
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Clarify * value
jrodewig Mar 3, 2021
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jrodewig Mar 3, 2021
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jrodewig Mar 3, 2021
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jrodewig Mar 3, 2021
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21 changes: 17 additions & 4 deletions docs/reference/index-modules.asciidoc
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Expand Up @@ -2,9 +2,6 @@
[[index-modules]]
= Index modules

[partintro]
--

Index Modules are modules created per index and control all aspects related to
an index.

Expand Down Expand Up @@ -252,6 +249,23 @@ are ignored for this index.
The maximum length of regex that can be used in Regexp Query.
Defaults to `1000`.


`index.query.default_field`::
+
--
(string or array of strings)
Wildcard (`*`) patterns matching one or more fields. The following query types
search these matching fields by default:

* <<query-dsl-mlt-query>>
* <<query-dsl-multi-match-query>>
* <<query-dsl-query-string-query>>
* <<query-dsl-simple-query-string-query>>

Defaults to `*`, which matches all fields eligible for
<<term-level-queries,term-level queries>>, excluding metadata fields.
--

`index.routing.allocation.enable`::

Controls shard allocation for this index. It can be set to:
Expand Down Expand Up @@ -341,7 +355,6 @@ Other index settings are available in index modules:
<<ilm-settings,{ilm-cap}>>::

Specify the lifecycle policy and rollover alias for an index.
--

include::index-modules/analysis.asciidoc[]

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5 changes: 4 additions & 1 deletion docs/reference/query-dsl/mlt-query.asciidoc
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Expand Up @@ -175,7 +175,10 @@ for documents `like: "Apple"`, but `unlike: "cake crumble tree"`. The syntax
is the same as `like`.

`fields`::
A list of fields to fetch and analyze the text from.
A list of fields to fetch and analyze the text from. Defaults to the
`index.query.default_field` index setting, which has a default value of `*`. The
`*` value matches all fields eligible for <<term-level-queries,term-level
queries>>, excluding metadata fields.

[discrete]
[[mlt-query-term-selection]]
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