[CP] Fix ctas unknown cast type

src/sql/engine/expr/ob_expr_cast.cpp

@@ -360,6 +360,10 @@ int ObExprCast::calc_result_type2(
           ObAccuracy acc = ObAccuracy::DDL_DEFAULT_ACCURACY2[compatibility_mode][dst_type.get_type()];
           type.set_accuracy(acc);
           type1.set_accuracy(acc);
+        } else if (ObYearType == dst_type.get_type()) {
+          ObAccuracy acc = ObAccuracy::DDL_DEFAULT_ACCURACY2[compatibility_mode][dst_type.get_type()];
+          type.set_accuracy(acc);
+          type1.set_accuracy(acc);
         } else {
           type.set_precision(dst_type.get_precision());
         }

src/sql/resolver/expr/ob_raw_expr_printer.cpp

@@ -2328,6 +2328,15 @@ int ObRawExprPrinter::print_cast_type(ObRawExpr* expr)
           DATA_PRINTF("date");
           break;
         }
+        case T_YEAR: {
+          int16_t scale = parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX];
+          if (scale >= 0) {
+            DATA_PRINTF("year(%d)", scale);
+          } else {
+            DATA_PRINTF("year");
+          }
+          break;
+        }
         case T_TIME: {
           int16_t scale = parse_node.int16_values_[OB_NODE_CAST_N_SCALE_IDX];
           if (scale >= 0) {