minor fix

common/unsafe/src/main/java/org/apache/spark/sql/catalyst/util/CollationFactory.java

@@ -516,7 +516,7 @@ private static CollationSpecUTF8 fromCollationId(int collationId) {
       protected Collation buildCollation() {
         if (caseSensitivity == CaseSensitivity.UNSPECIFIED) {
           return new Collation(
-            UTF8_BINARY_COLLATION_NAME,
+            normalizedCollationName(),
             PROVIDER_SPARK,
             null,
             UTF8String::binaryCompare,
@@ -527,7 +527,7 @@ protected Collation buildCollation() {
             /* supportsLowercaseEquality = */ false);
         } else {
           return new Collation(
-            UTF8_LCASE_COLLATION_NAME,
+            normalizedCollationName(),
             PROVIDER_SPARK,
             null,
             CollationAwareUTF8String::compareLowerCase,
@@ -577,7 +577,7 @@ protected CollationMeta buildCollationMeta() {
       @Override
       protected String normalizedCollationName() {
         StringBuilder builder = new StringBuilder();
-        if(SpecifierUtils.getSpecValue(collationId,  CASE_SENSITIVITY_OFFSET, CaseSensitivity.LCASE.ordinal()) == 0){
+        if(caseSensitivity == CaseSensitivity.UNSPECIFIED){
           builder.append(UTF8_BINARY_COLLATION_NAME);
         }else{
           builder.append(UTF8_LCASE_COLLATION_NAME);
@@ -721,16 +721,16 @@ private enum AccentSensitivity {
       }
 
       private static final int UNICODE_COLLATION_ID = new CollationSpecICU(
-          "UNICODE",
-          CaseSensitivity.CS,
-          AccentSensitivity.AS,
-          SpaceTrimming.NONE).collationId;
+        "UNICODE",
+        CaseSensitivity.CS,
+        AccentSensitivity.AS,
+        SpaceTrimming.NONE).collationId;
 
       private static final int UNICODE_CI_COLLATION_ID = new CollationSpecICU(
-          "UNICODE",
-          CaseSensitivity.CI,
-          AccentSensitivity.AS,
-          SpaceTrimming.NONE).collationId;
+        "UNICODE",
+        CaseSensitivity.CI,
+        AccentSensitivity.AS,
+        SpaceTrimming.NONE).collationId;
 
       private final CaseSensitivity caseSensitivity;
       private final AccentSensitivity accentSensitivity;

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collationExpressions.scala

@@ -87,7 +87,7 @@ case class Collate(child: Expression, collationName: String)
 
   override def toString: String = s"$prettyName($child, $collationName)"
 
-  val usesTrimCollation = CollationFactory.usesTrimCollation(collationId)
+  val usesTrimCollation : Boolean = CollationFactory.usesTrimCollation(collationId)
 }
 
 // scalastyle:off line.contains.tab
@@ -115,6 +115,6 @@ case class Collation(child: Expression)
   }
   override def inputTypes: Seq[AbstractDataType] = Seq(StringTypeAnyCollation)
 
-  val usesTrimCollation = CollationFactory.usesTrimCollation(
+  val usesTrimCollation: Boolean = CollationFactory.usesTrimCollation(
     child.dataType.asInstanceOf[StringType].collationId)
 }

sql/core/src/test/scala/org/apache/spark/sql/CollationSuite.scala

@@ -85,7 +85,7 @@ class CollationSuite extends DatasourceV2SQLBase with AdaptiveSparkPlanHelper {
       "utf8_lcase",
       "unicode",
       "unicode_ci",
-      "unicode_ltrim_ci",
+      "unicode_ci_ltrim",
       "utf8_lcase_trim",
       "utf8_binary_rtrim"
     ).foreach {