Fix IllegalStateException when query match_only_text field with non keyword field type as parent

[martijnvg]

Change match_only_text's value fetcher to use SortedBinaryDocValues instead of interacting with doc values api directly.

This way, via field data abstraction, the right doc values type is used, and the right conversions happen. Values of all field types will get converted to strings.

Error that this PR is addressing:

Caused by: java.lang.IllegalStateException: unexpected docvalues type BINARY for field 'process.command_line' (expected one of [SORTED, SORTED_SET]). Re-index with correct docvalues type.
	at [email protected]/org.apache.lucene.index.DocValues.checkField(DocValues.java:218)
	at [email protected]/org.apache.lucene.index.DocValues.getSortedSet(DocValues.java:323)
	at [email protected]/org.elasticsearch.index.mapper.extras.MatchOnlyTextFieldMapper$MatchOnlyTextFieldType.lambda$docValuesFieldFetcher$3(MatchOnlyTextFieldMapper.java:296)
	at [email protected]/org.elasticsearch.index.mapper.extras.SourceConfirmedTextQuery$2$1.get(SourceConfirmedTextQuery.java:305)
	at [email protected]/org.apache.lucene.search.DisjunctionMaxQuery$DisjunctionMaxWeight$1.get(DisjunctionMaxQuery.java:156)
	at [email protected]/org.apache.lucene.search.BooleanScorerSupplier.opt(BooleanScorerSupplier.java:529)
	at [email protected]/org.apache.lucene.search.BooleanScorerSupplier.getInternal(BooleanScorerSupplier.java:145)
	at [email protected]/org.apache.lucene.search.BooleanScorerSupplier.get(BooleanScorerSupplier.java:117)
	at [email protected]/org.apache.lucene.search.BooleanScorerSupplier.requiredBulkScorer(BooleanScorerSupplier.java:377)
	at [email protected]/org.apache.lucene.search.BooleanScorerSupplier.booleanScorer(BooleanScorerSupplier.java:219)
	at [email protected]/org.apache.lucene.search.BooleanScorerSupplier.bulkScorer(BooleanScorerSupplier.java:177)
	at [email protected]/org.apache.lucene.search.Weight.bulkScorer(Weight.java:178)
	at [email protected]/org.elasticsearch.search.internal.ContextIndexSearcher.searchLeaf(ContextIndexSearcher.java:454)
	at [email protected]/org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:809)
	at [email protected]/org.elasticsearch.search.internal.ContextIndexSearcher.search(ContextIndexSearcher.java:387)
	at [email protected]/org.elasticsearch.search.internal.ContextIndexSearcher.lambda$search$3(ContextIndexSearcher.java:365)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:328)
	at [email protected]/org.apache.lucene.search.TaskExecutor$Task.run(TaskExecutor.java:173)
	at [email protected]/org.apache.lucene.search.TaskExecutor.invokeAll(TaskExecutor.java:111)
	at [email protected]/org.elasticsearch.search.internal.ContextIndexSearcher.search(ContextIndexSearcher.java:369)
	at [email protected]/org.elasticsearch.search.internal.ContextIndexSearcher.search(ContextIndexSearcher.java:336)
	at [email protected]/org.elasticsearch.search.query.QueryPhase.addCollectorsAndSearch(QueryPhase.java:212)
	... 23 more

(marking as non-issue, given that this is a bug in unreleased version of ES)

[elasticsearchmachine]

Pinging @elastic/es-storage-engine (Team:StorageEngine)

[not-napoleon]

This looks good to me. The test covers the scenario we're concerned about, and the solution makes sense.

[jordan-powers]

LGTM

[martijnvg]

The serverless check failure looks unrelated:

EsqlClientYamlIT > test {p0=esql/80_text/NOT IN on text} FAILED	
    java.lang.AssertionError: circuit breakers not reset to 0Expected a map containing	
    estimated_size_in_bytes: expected <0> but was <80>	
             estimated_size: expected "0b" but was "80b"	
                   overhead: <1.0> unexpected but ok	
        limit_size_in_bytes: <322122547> unexpected but ok	
                 limit_size: "307.1mb" unexpected but ok	
                    tripped: <0> unexpected but ok	
        at __randomizedtesting.SeedInfo.seed([AF935BE020E1872D:27C7643A8E1DEAD5]:0)	
        at org.elasticsearch.test.MapMatcher.assertMap(MapMatcher.java:85)	
        at org.elasticsearch.xpack.esql.qa.rest.EsqlSpecTestCase.lambda$assertRequestBreakerEmpty$0(EsqlSpecTestCase.java:444)	
        at org.elasticsearch.test.ESTestCase.assertBusy(ESTestCase.java:1552)	
        at org.elasticsearch.test.ESTestCase.assertBusy(ESTestCase.java:1524)	
        at org.elasticsearch.xpack.esql.qa.rest.EsqlSpecTestCase.assertRequestBreakerEmpty(EsqlSpecTestCase.java:436)	
        at org.elasticsearch.xpack.esql.qa.mixed.EsqlClientYamlIT.assertRequestBreakerEmpty(EsqlClientYamlIT.java:41)

[elasticsearchmachine]

💔 Backport failed

You can use sqren/backport to manually backport by running backport --upstream elastic/elasticsearch --pr 130845