./gradlew ":x-pack:plugin:esql:qa:server:mixed-cluster:v8.11.4#javaRestTest" -Dtests.class="org.elasticsearch.xpack.esql.qa.mixed.MixedClusterEsqlSpecIT" -Dtests.method="test {where-like.NegatedRLikeWithLowerTurnedInsensitive SYNC}" -Dtests.seed=158010DEB26CF17F -Dtests.bwc=true -Dtests.locale=da-GL -Dtests.timezone=Europe/Madrid -Druntime.java=24 

org.elasticsearch.client.ResponseException: method [POST], host [http://[::1]:37261], URI [/_query?format=yaml&pretty=true&error_trace=true], status line [HTTP/1.1 400 Bad Request] Warnings: [No limit defined, adding default limit of [500]] --- error: root_cause: - type: "verification_exception" reason: "Found 1 problem\nline 4:18: Unknown function [TO_UPPER], did you mean\ \ any of [to_ver, to_integer, to_ip, to_str, to_ulong, to_ul]?" stack_trace: "org.elasticsearch.xpack.esql.analysis.VerificationException: Found\ \ 1 problem\nline 4:18: Unknown function [TO_UPPER], did you mean any of [to_ver,\ \ to_integer, to_ip, to_str, to_ulong, to_ul]?\n\tat org.elasticsearch.xpack.esql.analysis.Analyzer.verify(Analyzer.java:113)\n\ \tat org.elasticsearch.xpack.esql.analysis.Analyzer.analyze(Analyzer.java:107)\n\ \tat org.elasticsearch.xpack.esql.session.EsqlSession.lambda$analyzedPlan$2(EsqlSession.java:143)\n\ \tat org.elasticsearch.xpack.esql. [truncated]