Adrien Grand cb868d2f5e Introduce a `constant_keyword` field. (#49713) (#53024) ... This field is a specialization of the `keyword` field for the case when all documents have the same value. It typically performs more efficiently than keywords at query time by figuring out whether all or none of the documents match at rewrite time, like `term` queries on `_index`. The name is up for discussion. I liked including `keyword` in it, so that we still have room for a `singleton_numeric` in the future. However I'm unsure whether to call it `singleton`, `constant` or something else, any opinions? For this field there is a choice between 1. accepting values in `_source` when they are equal to the value configured in mappings, but rejecting mapping updates 2. rejecting values in `_source` but then allowing updates to the value that is configured in the mapping This commit implements option 1, so that it is possible to reindex from/to an index that has the field mapped as a keyword with no changes to the source. Backport of #49713		2020-03-03 16:01:47 +01:00
..
aggregations	Add size support to `top_metrics` (backport of #52662) (#52914)	2020-02-27 16:12:52 -05:00
analysis	[DOCS] Reformat trim token filter docs (#51649)	2020-03-02 07:48:23 -05:00
autoscaling	Add autoscaling API skelton (#51564)	2020-02-06 21:55:01 -05:00
cat	[DOCS] Adds cat anomaly detectors API (#52866) (#52970)	2020-03-02 07:28:55 -08:00
ccr	Remove outdated requirement of CCR (#50859)	2020-01-13 20:00:23 -05:00
cluster	[DOCS] Fix typo in task management API docs (#52881)	2020-02-27 11:31:11 -05:00
commands	[Docs] Fix typo in node-tool.asciidoc (#51667)	2020-01-31 10:36:21 +01:00
docs	[DOCS] Update term vectors snippet to prevent CI failure (#52819)	2020-02-26 12:41:40 -05:00
eql	[DOCS] Reorganize EQL requirements page	2020-03-03 07:02:30 -05:00
graph	[DOCS] [2 of 5] Change // CONSOLE comments to [source,console] (#46353) (#46502)	2019-09-09 13:38:14 -04:00
high-availability	[DOCS] Move snapshot-restore out of modules. (#49618) (#50829)	2020-01-09 16:55:46 -08:00
how-to	Introduce a `constant_keyword` field. (#49713) (#53024)	2020-03-03 16:01:47 +01:00
ilm	[DOCS] Correct policy name in ILM docs example (#52354)	2020-02-25 09:36:22 -05:00
images	SQL: update ODBC docs, cover Cloud ID, latest params (#52291)	2020-02-19 17:42:28 +01:00
index-modules	Discourage from opting in for the `niofs` store. (#52638)	2020-02-25 08:54:11 +01:00
indices	[Docs] Clarify default value for `allow_no_indices` (#52635) (#52697)	2020-02-24 11:57:32 +01:00
ingest	[DOCS] Fix formatting of simulate ingest pipeline API docs (#52754)	2020-03-02 11:46:27 -05:00
licensing	[DOCS] Augments update license API (#51903)	2020-02-05 11:08:11 -08:00
mapping	Introduce a `constant_keyword` field. (#49713) (#53024)	2020-03-03 16:01:47 +01:00
migration	Clarified http.max_content_length description (#52329)	2020-02-24 21:01:14 -05:00
ml	[DOCS] Adds cat anomaly detectors API (#52866) (#52970)	2020-03-02 07:28:55 -08:00
modules	"Adding nodes" instructions only work on localhost (#52677)	2020-02-27 09:18:37 +00:00
monitoring	[DOCS] Fixes monitoring links (#52790)	2020-02-25 18:08:23 -08:00
query-dsl	Correct boost calculation in script_score query (#52478) (#52724)	2020-02-24 13:48:21 -05:00
release-notes	Add validation for dynamic templates (#52890)	2020-02-28 10:35:04 +01:00
rest-api	Correct the name of the search timeout parameter. (#52733)	2020-02-24 14:59:06 -08:00
rollup	[DOCS] Merge rollup config details into API (#49412)	2019-11-22 08:39:49 -08:00
scripting	Scripting: Add char position of script errors (#51069) (#51266)	2020-01-21 13:45:59 -07:00
search	Adds recall@k metric to rank eval API (#52889)	2020-02-27 16:04:24 +01:00
settings	[7.x][Transform] implement node.transform to control where to… (#52998)	2020-03-02 16:10:57 +01:00
setup	Document how to change GC logging behaviour (#52879)	2020-02-28 21:27:45 +00:00
slm	Correct SLM retention timezone documentation (#52533)	2020-02-19 13:46:43 -07:00
snapshot-restore	Backporting updates to ILM org, overview, & GS (#51898)	2020-02-04 16:45:18 -08:00
sql	remove references to the SQL API from ODBC config (#52765)	2020-02-26 13:39:54 +01:00
testing	Uppercasing some docs section title (#37781)	2019-01-24 22:54:55 +01:00
transform	[DOCS] Correct important note for xpack.transform.enabled (#52194)	2020-02-11 13:02:10 +00:00
upgrade	Deprecate synced flush (#50835)	2020-01-13 19:54:38 -05:00
vectors	Remove the 'experimental' marking from vector fields. (#49120)	2019-11-18 12:42:46 -08:00
aggregations.asciidoc	…
analysis.asciidoc	[DOCS] Add attribute for Lucene analysis links (#51687)	2020-01-30 11:24:01 -05:00
api-conventions.asciidoc	[DOCS] [2 of 5] Change // CONSOLE comments to [source,console] (#46353) (#46502)	2019-09-09 13:38:14 -04:00
cat.asciidoc	[DOCS] Adds cat anomaly detectors API (#52866) (#52970)	2020-03-02 07:28:55 -08:00
cluster.asciidoc	Password-protected Keystore Feature Branch PR (#51123) (#51510)	2020-01-28 05:32:32 -05:00
data-rollup-transform.asciidoc	[DOCS] Adds transforms to Elasticsearch book (#46846) (#47055)	2019-09-25 08:11:37 -07:00
docs.asciidoc	[DOCS] Remove heading offsets for REST APIs (#44568)	2019-07-19 14:36:06 -04:00
frozen-indices.asciidoc	[DOCS] [2 of 5] Change // CONSOLE comments to [source,console] (#46353) (#46502)	2019-09-09 13:38:14 -04:00
getting-started.asciidoc	[DOCS] Switch to standard ESS trial links (#52552)	2020-02-21 12:07:10 -05:00
glossary.asciidoc	Backporting updates to ILM org, overview, & GS (#51898)	2020-02-04 16:45:18 -08:00
gs-index.asciidoc	…
high-availability.asciidoc	[DOCS] Remove leveloffset for CCR docs (#46818)	2019-09-18 09:44:43 -04:00
how-to.asciidoc	…
index-modules.asciidoc	Deprecate creation of dot-prefixed index names except for hidden and system indices (#49959)	2020-01-28 10:01:16 -07:00
index.asciidoc	[DOCS] Include docs on permanently unreleased branches only (#51743)	2020-02-11 11:24:13 -05:00
index.x.asciidoc	[DOCS] Removes redundant index.asciidoc files (#30707)	2018-05-18 11:05:40 -07:00
indices.asciidoc	[DOCS] Reorder index APIs alphabetically (#46981) (#47402)	2019-10-01 17:07:28 -04:00
ingest.asciidoc	Replace required pipeline with final pipeline (#49470)	2019-11-22 14:37:36 -05:00
intro.asciidoc	[7.x][DOCS] Updates ML links (#50387) (#50409)	2019-12-20 10:01:19 -08:00
mapping.asciidoc	[DOCS] Note clause limit in `index.mapping.total_fields.limit` docs (#48153)	2019-10-18 10:20:49 -04:00
modules.asciidoc	Backporting updates to ILM org, overview, & GS (#51898)	2020-02-04 16:45:18 -08:00
query-dsl.asciidoc	Add a cluster setting to disallow expensive queries (#51385) (#52279)	2020-02-12 22:56:14 +01:00
redirects.asciidoc	[DOCS] Adds transform-settings page and its subpage to redirects (#52944)	2020-03-02 16:36:40 +01:00
release-notes.asciidoc	[DOCS] Adds placeholder for 7.5.2 release notes (#51124)	2020-01-16 14:42:24 -05:00
scripting.asciidoc	[DOCS] Move 'Scripting' section to top-level navigation. (#42939)	2019-06-06 10:46:02 -04:00
search.asciidoc	Use snake casing for document field (#45432)	2019-09-19 14:27:00 +02:00
setup.asciidoc	[DOCS] Adds transform-settings page and its subpage to redirects (#52944)	2020-03-02 16:36:40 +01:00
testing.asciidoc	…
upgrade.asciidoc	[DOCS] Change prev version to 7.5 in upgrade docs (#48415)	2019-10-23 12:09:26 -05:00