[SPARK-47504][SQL] Resolve AbstractDataType simpleStrings for StringT…

…ypeCollated

### What changes were proposed in this pull request?
Renaming simpleString in StringTypeAnyCollation. This PR should only be merged after #45383 is merged.

### Why are the changes needed?
[SPARK-47296](#45422) introduced a change to fail all unsupported functions. Because of this change expected inputTypes in ExpectsInputTypes had to be changed. This change introduced a change on user side which will print "STRING_ANY_COLLATION" in places where before we printed "STRING" when an error occurred. Concretely if we get an input of Int where StringTypeAnyCollation was expected, we will throw this faulty message for users.

### Does this PR introduce _any_ user-facing change?
Yes

### How was this patch tested?
Existing tests were changed back to "STRING" notation.

### Was this patch authored or co-authored using generative AI tooling?
No.

Closes #45694 from mihailom-db/SPARK-47504.

Authored-by: Mihailo Milosevic <mihailo.milosevic@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>

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

@@ -24,13 +24,13 @@ import org.apache.spark.sql.types.{AbstractDataType, DataType, StringType}
  */
 abstract class StringTypeCollated extends AbstractDataType {
   override private[sql] def defaultConcreteType: DataType = StringType
+  override private[sql] def simpleString: String = "string"
 }
 
 /**
  * Use StringTypeBinary for expressions supporting only binary collation.
  */
 case object StringTypeBinary extends StringTypeCollated {
-  override private[sql] def simpleString: String = "string_binary"
   override private[sql] def acceptsType(other: DataType): Boolean =
     other.isInstanceOf[StringType] && other.asInstanceOf[StringType].supportsBinaryEquality
 }
@@ -39,7 +39,6 @@ case object StringTypeBinary extends StringTypeCollated {
  * Use StringTypeBinaryLcase for expressions supporting only binary and lowercase collation.
  */
 case object StringTypeBinaryLcase extends StringTypeCollated {
-  override private[sql] def simpleString: String = "string_binary_lcase"
   override private[sql] def acceptsType(other: DataType): Boolean =
     other.isInstanceOf[StringType] && (other.asInstanceOf[StringType].supportsBinaryEquality ||
       other.asInstanceOf[StringType].isUTF8BinaryLcaseCollation)
@@ -49,6 +48,5 @@ case object StringTypeBinaryLcase extends StringTypeCollated {
  * Use StringTypeAnyCollation for expressions supporting all possible collation types.
  */
 case object StringTypeAnyCollation extends StringTypeCollated {
-  override private[sql] def simpleString: String = "string_any_collation"
   override private[sql] def acceptsType(other: DataType): Boolean = other.isInstanceOf[StringType]
 }

sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/StringExpressionsSuite.scala

@@ -70,7 +70,7 @@ class StringExpressionsSuite extends SparkFunSuite with ExpressionEvalHelper {
         errorSubClass = "UNEXPECTED_INPUT_TYPE",
         messageParameters = Map(
           "paramIndex" -> ordinalNumber(0),
-          "requiredType" -> "(\"STRING_ANY_COLLATION\" or \"BINARY\" or \"ARRAY\")",
+          "requiredType" -> "(\"STRING\" or \"BINARY\" or \"ARRAY\")",
           "inputSql" -> "\"1\"",
           "inputType" -> "\"INT\""
         )

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

@@ -127,7 +127,7 @@ class CollationSuite extends DatasourceV2SQLBase with AdaptiveSparkPlanHelper {
         "paramIndex" -> "first",
         "inputSql" -> "\"1\"",
         "inputType" -> "\"INT\"",
-        "requiredType" -> "\"STRING_ANY_COLLATION\""),
+        "requiredType" -> "\"STRING\""),
       context = ExpectedContext(
         fragment = s"collate(1, 'UTF8_BINARY')", start = 7, stop = 31))
   }

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

@@ -1713,7 +1713,7 @@ class DataFrameFunctionsSuite extends QueryTest with SharedSparkSession {
         "paramIndex" -> "second",
         "inputSql" -> "\"1\"",
         "inputType" -> "\"INT\"",
-        "requiredType" -> "\"STRING_ANY_COLLATION\""
+        "requiredType" -> "\"STRING\""
       ),
       queryContext = Array(ExpectedContext("", "", 0, 15, "array_join(x, 1)"))
     )
@@ -1727,7 +1727,7 @@ class DataFrameFunctionsSuite extends QueryTest with SharedSparkSession {
         "paramIndex" -> "third",
         "inputSql" -> "\"1\"",
         "inputType" -> "\"INT\"",
-        "requiredType" -> "\"STRING_ANY_COLLATION\""
+        "requiredType" -> "\"STRING\""
       ),
       queryContext = Array(ExpectedContext("", "", 0, 21, "array_join(x, ', ', 1)"))
     )
@@ -1987,7 +1987,7 @@ class DataFrameFunctionsSuite extends QueryTest with SharedSparkSession {
         "paramIndex" -> "first",
         "inputSql" -> "\"struct(1, a)\"",
         "inputType" -> "\"STRUCT<col1: INT NOT NULL, col2: STRING NOT NULL>\"",
-        "requiredType" -> "(\"STRING_ANY_COLLATION\" or \"ARRAY\")"
+        "requiredType" -> "(\"STRING\" or \"ARRAY\")"
       ),
       queryContext = Array(ExpectedContext("", "", 7, 29, "reverse(struct(1, 'a'))"))
     )
@@ -2002,7 +2002,7 @@ class DataFrameFunctionsSuite extends QueryTest with SharedSparkSession {
         "paramIndex" -> "first",
         "inputSql" -> "\"map(1, a)\"",
         "inputType" -> "\"MAP<INT, STRING>\"",
-        "requiredType" -> "(\"STRING_ANY_COLLATION\" or \"ARRAY\")"
+        "requiredType" -> "(\"STRING\" or \"ARRAY\")"
       ),
       queryContext = Array(ExpectedContext("", "", 7, 26, "reverse(map(1, 'a'))"))
     )
@@ -2552,7 +2552,7 @@ class DataFrameFunctionsSuite extends QueryTest with SharedSparkSession {
       parameters = Map(
         "sqlExpr" -> "\"concat(map(1, 2), map(3, 4))\"",
         "paramIndex" -> "first",
-        "requiredType" -> "(\"STRING_ANY_COLLATION\" or \"BINARY\" or \"ARRAY\")",
+        "requiredType" -> "(\"STRING\" or \"BINARY\" or \"ARRAY\")",
         "inputSql" -> "\"map(1, 2)\"",
         "inputType" -> "\"MAP<INT, INT>\""
       ),