[PlSql] Add modify range_partitions to modify_table_partition rule (#3834)

Author: sd1337

sql/plsql/PlSqlParser.g4

@@ -4695,7 +4695,9 @@ merge_table_partition
     ;
 
 modify_table_partition
-    : MODIFY PARTITION partition_name ((ADD | DROP) list_values_clause)? (ADD range_subpartition_desc)? (REBUILD? UNUSABLE LOCAL INDEXES)?
+    : MODIFY (PARTITION partition_name ((ADD | DROP) list_values_clause)? (ADD range_subpartition_desc)? (REBUILD? UNUSABLE LOCAL INDEXES)?
+             | range_partitions
+             )
     ;
 
 split_table_partition

sql/plsql/examples/alter_table_modify_partition_by_range.sql

@@ -0,0 +1,9 @@
+ALTER TABLE table_name
+    MODIFY
+        PARTITION BY RANGE (date_column)
+            INTERVAL ( NUMTODSINTERVAL (1, 'DAY') )
+            (
+                PARTITION
+                    VALUES LESS THAN
+                        (TO_DATE('2024-01-01', 'YYYY-MM-DD'))
+            );