Ignore new Locales used in tests ES SQL

muted-tests.yml

@@ -5,30 +5,6 @@ tests:
 - class: org.elasticsearch.packaging.test.PackagesSecurityAutoConfigurationTests
   method: test20SecurityNotAutoConfiguredOnReInstallation
   issue: https://github.com/elastic/elasticsearch/issues/112635
-- class: org.elasticsearch.xpack.sql.qa.single_node.JdbcSqlSpecIT
-  method: test {case-functions.testSelectInsertWithLcaseAndLengthWithOrderBy}
-  issue: https://github.com/elastic/elasticsearch/issues/112642
-- class: org.elasticsearch.xpack.sql.qa.single_node.JdbcSqlSpecIT
-  method: test {case-functions.testUcaseInline1}
-  issue: https://github.com/elastic/elasticsearch/issues/112641
-- class: org.elasticsearch.xpack.sql.qa.single_node.JdbcSqlSpecIT
-  method: test {case-functions.testUpperCasingTheSecondLetterFromTheRightFromFirstName}
-  issue: https://github.com/elastic/elasticsearch/issues/112640
-- class: org.elasticsearch.xpack.sql.qa.single_node.JdbcSqlSpecIT
-  method: test {case-functions.testUcaseInline3}
-  issue: https://github.com/elastic/elasticsearch/issues/112643
-- class: org.elasticsearch.xpack.sql.qa.security.JdbcSqlSpecIT
-  method: test {case-functions.testUcaseInline1}
-  issue: https://github.com/elastic/elasticsearch/issues/112641
-- class: org.elasticsearch.xpack.sql.qa.security.JdbcSqlSpecIT
-  method: test {case-functions.testUcaseInline3}
-  issue: https://github.com/elastic/elasticsearch/issues/112643
-- class: org.elasticsearch.xpack.sql.qa.security.JdbcSqlSpecIT
-  method: test {case-functions.testUpperCasingTheSecondLetterFromTheRightFromFirstName}
-  issue: https://github.com/elastic/elasticsearch/issues/112640
-- class: org.elasticsearch.xpack.sql.qa.security.JdbcSqlSpecIT
-  method: test {case-functions.testSelectInsertWithLcaseAndLengthWithOrderBy}
-  issue: https://github.com/elastic/elasticsearch/issues/112642
 - class: org.elasticsearch.xpack.transform.integration.TransformIT
   method: testStopWaitForCheckpoint
   issue: https://github.com/elastic/elasticsearch/issues/106113

x-pack/plugin/sql/qa/server/src/main/java/org/elasticsearch/xpack/sql/qa/jdbc/SqlSpecTestCase.java

@@ -86,7 +86,17 @@ protected int fetchSize() {
     protected final void doTest() throws Throwable {
         // we skip the tests in case of these locales because ES-SQL is Locale-insensitive for now
         // while H2 does take the Locale into consideration
-        String[] h2IncompatibleLocales = new String[] { "tr", "az", "tr-TR", "tr-CY", "az-Latn", "az-Cyrl", "az-Latn-AZ", "az-Cyrl-AZ" };
+        String[] h2IncompatibleLocales = new String[] {
+            "tr",
+            "az",
+            "tr-TR",
+            "tr-CY",
+            "az-Latn",
+            "az-Cyrl",
+            "az-Latn-AZ",
+            "az-Cyrl-AZ",
+            "tr-Latn-TR",
+            "az-AZ" };
         boolean goodLocale = Arrays.stream(h2IncompatibleLocales)
             .anyMatch((l) -> Locale.getDefault().equals(new Locale.Builder().setLanguageTag(l).build())) == false;
         if (fileName.startsWith("case-functions")) {

x-pack/plugin/sql/qa/server/src/main/resources/case-functions.sql-spec

@@ -1,7 +1,13 @@
 // To mute tests follow example in file: example.sql-spec
 
+// For anyone reaching this file in the future coming from CI failures related to uppercasing/lowercasing tests:
+// For example: Different result for column [upper], entry [1] expected:< ELAST[İ]C > but was:< ELAST[I]C >
+// Go to SqlSpecTestCase.doTest() method and look for h2IncompatibleLocales and add the faulty Locale there,
+// after you double check that the issue is indeed related to that specific Locale.
+
 // Next 4 SELECTs in this file are related to https://github.com/elastic/elasticsearch/issues/32589
 // H2 is Locale sensitive, while ES-SQL is not (so far)
+
 selectInsertWithLcaseAndLengthWithOrderBy
 SELECT "first_name" origFN, "last_name" origLN, INSERT(UCASE("first_name"),LENGTH("first_name")+1,123,LCASE("last_name")) modified FROM "test_emp" WHERE ASCII("first_name")=65 ORDER BY "first_name" ASC, "last_name" ASC LIMIT 10;