[8.19] [ES|QL] Add MATCH_PHRASE (#127661) (#129215)

* [ES|QL] Add MATCH_PHRASE (#127661)

* Initial commit of match_phrase

* Add MatchPhraseQueryTests

* First pass at CSV specs

* Update docs/changelog/127661.yaml

* Refactor so MatchPhrase doesn't use all fulltext test cases, just text only

* Fix tests

* Add some CSV test cases

* Fix test

* Update changelog

* Update tests

* Comment out MATCH_PHRASE in search-functions Markdown

* Minor PR feedback

* PR feedback - refactor/consolidate code

* Add some more tests

* Fix some tests

* [CI] Auto commit changes from spotless

* Fix tests

* PR feedback - add tests, support boost and numeric data

* Revert "PR feedback - add tests, support boost and numeric data"

This reverts commit 4e7a699.

* Apply testing/PR feedback outside numeric support only

* Regenerate docs

* Add negative test

* Update x-pack/plugin/esql/qa/testFixtures/src/main/resources/match-phrase-function.csv-spec

Co-authored-by: Carlos Delgado <[email protected]>

* Update x-pack/plugin/esql/qa/testFixtures/src/main/resources/match-phrase-function.csv-spec

Co-authored-by: Carlos Delgado <[email protected]>

* Update x-pack/plugin/esql/qa/testFixtures/src/main/resources/match-phrase-function.csv-spec

Co-authored-by: Carlos Delgado <[email protected]>

* PR feedback

* Fix auto-commit error

* Regenerate docs

* Update x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/fulltext/MatchPhrase.java

Co-authored-by: Liam Thompson <[email protected]>

* Remove non text field types

* Fake test data

* Remove tests that no longer should pass without ip/date/version support

* Put real data in score tests now that I was able to engineer a failure

* Realized the scoring test might be flakey because how it was written, updated

* PR feedback

* PR feedback

* [CI] Auto commit changes from spotless

* Add check to MatchPhrase tests

* Fix merge errors

* [CI] Auto commit changes from spotless

* Test generated docs

* Add additional verifier tests

---------

Co-authored-by: elasticsearchmachine <[email protected]>
Co-authored-by: Carlos Delgado <[email protected]>
Co-authored-by: Liam Thompson <[email protected]>
(cherry picked from commit eee423a)

# Conflicts:
#	docs/reference/esql/functions/description/match_phrase.md
#	docs/reference/esql/functions/examples/match_phrase.md
#	docs/reference/esql/functions/kibana/definition/match_phrase.json
#	docs/reference/esql/functions/kibana/docs/match_phrase.md
#	docs/reference/query-languages/esql/_snippets/lists/search-functions.md
#	docs/reference/query-languages/esql/functions-operators/search-functions.md
#	x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/action/EsqlCapabilities.java
#	x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/EsqlFunctionRegistry.java
#	x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/fulltext/FullTextFunction.java
#	x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/fulltext/Match.java
#	x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/fulltext/QueryString.java
#	x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/analysis/VerifierTests.java

* Take match_phrase out of snapshot and make tech preview (#128925)

* Take match_phrase out of snapshot and make tech preview

* Update docs/changelog/128925.yaml

* PR feedback

* Adding regenerated test data

* Update docs/changelog/128925.yaml

Co-authored-by: Carlos Delgado <[email protected]>

* [CI] Auto commit changes from spotless

* Checkstyle

* Correct docs

* Hopefully fix docs build

* Found one more bad docs link - here's hoping this now fixes the doc build

* OMG bitten by - vs _

---------

Co-authored-by: Carlos Delgado <[email protected]>
Co-authored-by: elasticsearchmachine <[email protected]>
Co-authored-by: Aurélien FOUCRET <[email protected]>

* Remove null example for match_phrase (#129173)

* Fix errors from merge

* Fix more errors from merge

* [CI] Auto commit changes from spotless

* Fix compile errors introduced through cherry-pick

* Fix test compilation

* Generate docs

* Register match_phrase as a function not a snapshot function (#129255)

* Register match_phrase as a function not a snapshot function

* Update usage

* Fix usage

---------

Co-authored-by: Carlos Delgado <[email protected]>
Co-authored-by: elasticsearchmachine <[email protected]>
Co-authored-by: Aurélien FOUCRET <[email protected]>
Co-authored-by: Ioana Tagirta <[email protected]>

Author: 5 people

docs/changelog/127661.yaml

@@ -0,0 +1,5 @@
+pr: 127661
+summary: Add MATCH_PHRASE
+area: ES|QL
+type: enhancement
+issues: []

docs/changelog/128925.yaml

@@ -0,0 +1,5 @@
+pr: 128925
+summary: ES|QL - Add `match_phrase` full text function (tech preview)
+area: ES|QL
+type: enhancement
+issues: []