[CI] PushQueriesIT testEqualityOrTooBig {KEYWORD} failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #8932 / debian-12_platform-support-unix
• elasticsearch-pull-request #76661 / part-3
• elasticsearch-periodic-platform-support #8830 / windows-2025_checkpart3_platform-support-windows

Reproduction Line:

./gradlew ":x-pack:plugin:esql:qa:server:single-node:javaRestTest" --tests "org.elasticsearch.xpack.esql.qa.single_node.PushQueriesIT.testEqualityOrTooBig {KEYWORD}" -Dtests.seed=D8BA9260D22EA574 -Dtests.locale=dav-KE -Dtests.timezone=America/Eirunepe -Druntime.java=24

Applicable branches:
8.19

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: Expected a map containing
             operator: "LuceneSourceOperator[maxPageSize = 4854, remainingDocs = 999]"
               status: a map containing
      processed_queries: a list containing
                        0: expected ("test:(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa )") but was "test:( aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
[truncated]

Issue Reasons:

• [8.19] 3 failures in test testEqualityOrTooBig {KEYWORD} (0.5% fail rate in 579 executions)
• [8.19] 2 failures in pipeline elasticsearch-periodic-platform-support (11.1% fail rate in 18 executions)

Note:
This issue was created using new test triage automation. Please report issues or feedback to es-delivery.

[elasticsearchmachine]

Pinging @elastic/es-analytical-engine (Team:Analytics)

[nik9000]

Fixed by #129657