Invalid unparse for TIMESTAMP with SparkSqlDialect

SELECT CAST("2023-11-10" AS TIMESTAMP) 

SELECT CAST("2023-11-10" AS TIMESTAMP(0))  

scala> spark.sql("""SELECT CAST("2023-11-10" AS TIMESTAMP)""").show()
+-----------------------------+
|CAST(2023-11-10 AS TIMESTAMP)|
+-----------------------------+
|          2023-11-10 00:00:00|
+-----------------------------+
scala> spark.sql("""SELECT CAST("2023-11-10" AS TIMESTAMP(0))""").show()
org.apache.spark.sql.catalyst.parser.ParseException:
[UNSUPPORTED_DATATYPE] Unsupported data type "TIMESTAMP(0)".(line 1, pos 28)== SQL ==
SELECT CAST("2023-11-10" AS TIMESTAMP(0))
----------------------------^^^  at org.apache.spark.sql.errors.QueryParsingErrors$.dataTypeUnsupportedError(QueryParsingErrors.scala:279)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.$anonfun$visitPrimitiveDataType$1(AstBuilder.scala:2898)
  at org.apache.spark.sql.catalyst.parser.ParserUtils$.withOrigin(ParserUtils.scala:160)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitPrimitiveDataType(AstBuilder.scala:2867)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitPrimitiveDataType(AstBuilder.scala:58)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParser$PrimitiveDataTypeContext.accept(SqlBaseParser.java:20672)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.typedVisit(AstBuilder.scala:63)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.$anonfun$visitCast$1(AstBuilder.scala:1972)
  at org.apache.spark.sql.catalyst.parser.ParserUtils$.withOrigin(ParserUtils.scala:160)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitCast(AstBuilder.scala:1971)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitCast(AstBuilder.scala:58)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParser$CastContext.accept(SqlBaseParser.java:17983)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitChildren(AstBuilder.scala:73)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParserBaseVisitor.visitValueExpressionDefault(SqlBaseParserBaseVisitor.java:1567)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParser$ValueExpressionDefaultContext.accept(SqlBaseParser.java:17491)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.typedVisit(AstBuilder.scala:63)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.expression(AstBuilder.scala:1630)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.$anonfun$visitPredicated$1(AstBuilder.scala:1766)
  at org.apache.spark.sql.catalyst.parser.ParserUtils$.withOrigin(ParserUtils.scala:160)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitPredicated(AstBuilder.scala:1765)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitPredicated(AstBuilder.scala:58)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParser$PredicatedContext.accept(SqlBaseParser.java:16909)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitChildren(AstBuilder.scala:73)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParserBaseVisitor.visitExpression(SqlBaseParserBaseVisitor.java:1518)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParser$ExpressionContext.accept(SqlBaseParser.java:16766)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.typedVisit(AstBuilder.scala:63)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.expression(AstBuilder.scala:1630)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.$anonfun$visitNamedExpression$1(AstBuilder.scala:1652)
  at org.apache.spark.sql.catalyst.parser.ParserUtils$.withOrigin(ParserUtils.scala:160)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitNamedExpression(AstBuilder.scala:1651)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitNamedExpression(AstBuilder.scala:58)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParser$NamedExpressionContext.accept(SqlBaseParser.java:16268)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.typedVisit(AstBuilder.scala:63)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.$anonfun$visitNamedExpressionSeq$2(AstBuilder.scala:676)
  at scala.collection.immutable.List.map(List.scala:293)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitNamedExpressionSeq(AstBuilder.scala:676)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.$anonfun$withSelectQuerySpecification$1(AstBuilder.scala:782)
  at org.apache.spark.sql.catalyst.parser.ParserUtils$.withOrigin(ParserUtils.scala:160)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.withSelectQuerySpecification(AstBuilder.scala:776)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.$anonfun$visitRegularQuerySpecification$1(AstBuilder.scala:668)
  at org.apache.spark.sql.catalyst.parser.ParserUtils$.withOrigin(ParserUtils.scala:160)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitRegularQuerySpecification(AstBuilder.scala:656)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitRegularQuerySpecification(AstBuilder.scala:58)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParser$RegularQuerySpecificationContext.accept(SqlBaseParser.java:10386)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitChildren(AstBuilder.scala:73)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParserBaseVisitor.visitQueryPrimaryDefault(SqlBaseParserBaseVisitor.java:902)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParser$QueryPrimaryDefaultContext.accept(SqlBaseParser.java:9891)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitChildren(AstBuilder.scala:73)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParserBaseVisitor.visitQueryTermDefault(SqlBaseParserBaseVisitor.java:888)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParser$QueryTermDefaultContext.accept(SqlBaseParser.java:9658)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.typedVisit(AstBuilder.scala:63)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.plan(AstBuilder.scala:114)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.$anonfun$visitQuery$1(AstBuilder.scala:120)
  at org.apache.spark.sql.catalyst.parser.ParserUtils$.withOrigin(ParserUtils.scala:160)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitQuery(AstBuilder.scala:119)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitQuery(AstBuilder.scala:58)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParser$QueryContext.accept(SqlBaseParser.java:6891)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitChildren(AstBuilder.scala:73)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParserBaseVisitor.visitStatementDefault(SqlBaseParserBaseVisitor.java:69)
  at org.apache.spark.sql.catalyst.parser.SqlBaseParser$StatementDefaultContext.accept(SqlBaseParser.java:1988)
  at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.$anonfun$visitSingleStatement$1(AstBuilder.scala:80)
  at org.apache.spark.sql.catalyst.parser.ParserUtils$.withOrigin(ParserUtils.scala:160)
  at org.apache.spark.sql.catalyst.parser.AstBuilder.visitSingleStatement(AstBuilder.scala:80)
  at org.apache.spark.sql.catalyst.parser.AbstractSqlParser.$anonfun$parsePlan$2(ParseDriver.scala:92)
  at org.apache.spark.sql.catalyst.parser.ParserUtils$.withOrigin(ParserUtils.scala:160)
  at org.apache.spark.sql.catalyst.parser.AbstractSqlParser.$anonfun$parsePlan$1(ParseDriver.scala:92)
  at org.apache.spark.sql.catalyst.parser.AbstractSqlParser.parse(ParseDriver.scala:127)
  at org.apache.spark.sql.execution.SparkSqlParser.parse(SparkSqlParser.scala:52)
  at org.apache.spark.sql.catalyst.parser.AbstractSqlParser.parsePlan(ParseDriver.scala:89)
  at org.apache.spark.sql.SparkSession.$anonfun$sql$2(SparkSession.scala:633)
  at org.apache.spark.sql.catalyst.QueryPlanningTracker.measurePhase(QueryPlanningTracker.scala:111)
  at org.apache.spark.sql.SparkSession.$anonfun$sql$1(SparkSession.scala:632)
  at org.apache.spark.sql.SparkSession.withActive(SparkSession.scala:827)
  at org.apache.spark.sql.SparkSession.sql(SparkSession.scala:630)
  at org.apache.spark.sql.SparkSession.sql(SparkSession.scala:671)
  ... 47 elided