ALTER TABLE DROP PARTITION
Drops one or more specified partitions for the named table.
Synopsis
ALTER TABLE table_name DROP [IF EXISTS] PARTITION (partition_spec) [, PARTITION (partition_spec)]Parameters
- [IF EXISTS]
- 
                    Suppresses the error message if the partition specified does not exist. 
- PARTITION (partition_spec)
- 
                    Each partition_specspecifies a column name/value combination in the formpartition_col_name = partition_col_value [,...].
Examples
ALTER TABLE orders DROP PARTITION (dt = '2014-05-14', country = 'IN');
ALTER TABLE orders DROP PARTITION (dt = '2014-05-14', country = 'IN'), PARTITION (dt = '2014-05-15', country = 'IN');
Notes
The ALTER TABLE DROP PARTITION statement does not provide a single syntax
            for dropping all partitions at once or support filtering criteria to specify a range of
            partitions to drop.
As a workaround, you can use the Amazon Glue API GetPartitions and BatchDeletePartition actions in scripting. The GetPartitions
            action supports complex filter expressions like those in a SQL WHERE
            expression. After you use GetPartitions to create a filtered list of
            partitions to delete, you can use the BatchDeletePartition action to delete
            the partitions in batches of 25.