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 AWS 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.
