[Gluten][Function] Support function current_date

Author: 汪细勖(WangXixu)-顺丰科技技术集团

backends-velox/src/test/scala/org/apache/gluten/execution/VeloxStringFunctionsSuite.scala

@@ -146,6 +146,12 @@ class VeloxStringFunctionsSuite extends VeloxWholeStageTransformerSuite {
         s"from $LINEITEM_TABLE limit $LENGTH")(checkGlutenOperatorMatch[ProjectExecTransformer])
   }
 
+  test("current_date") {
+    runQueryAndCompare(
+      s"select l_orderkey, l_shipdate, current_date() " +
+        s"from $LINEITEM_TABLE limit $LENGTH")(checkGlutenOperatorMatch[ProjectExecTransformer])
+  }
+
   test("year") {
     runQueryAndCompare(
       s"select l_orderkey, l_shipdate, year(l_shipdate) " +

gluten-substrait/src/main/scala/org/apache/gluten/expression/ExpressionMappings.scala

@@ -188,6 +188,7 @@ object ExpressionMappings {
     Sig[TruncDate](TRUNC),
     Sig[TruncTimestamp](DATE_TRUNC),
     Sig[GetTimestamp](GET_TIMESTAMP),
+    Sig[CurrentDate](CURRENT_DATE),
     Sig[NextDay](NEXT_DAY),
     Sig[LastDay](LAST_DAY),
     Sig[MonthsBetween](MONTHS_BETWEEN),

shims/common/src/main/scala/org/apache/gluten/expression/ExpressionNames.scala

@@ -214,6 +214,7 @@ object ExpressionNames {
   final val DATE_TRUNC = "date_trunc"
   final val GET_TIMESTAMP = "get_timestamp" // for function: to_date/to_timestamp
   final val TIMESTAMP_ADD = "timestamp_add"
+  final val CURRENT_DATE = "current_date"
   final val NEXT_DAY = "next_day"
   final val LAST_DAY = "last_day"
   final val MONTHS_BETWEEN = "months_between"