Procedures #

This section introduce all available spark procedures about paimon.

Procedure Name	Explanation	Example
compact	To compact files. Argument: table: the target table identifier. Cannot be empty. partitions: partition filter. "," means "AND" ";" means "OR".If you want to compact one partition with date=01 and day=01, you need to write 'date=01,day=01'. Left empty for all partitions. (Can't be used together with "where") where: partition predicate. Left empty for all partitions. (Can't be used together with "partitions") order_strategy: 'order' or 'zorder' or 'hilbert' or 'none'. Left empty for 'none'. order_columns: the columns need to be sort. Left empty if 'order_strategy' is 'none'. partition_idle_time: this is used to do a full compaction for partition which had not received any new data for 'partition_idle_time'. And only these partitions will be compacted. This argument can not be used with order compact.	SET spark.sql.shuffle.partitions=10; --set the compact parallelism CALL sys.compact(table => 'T', partitions => 'p=0;p=1', order_strategy => 'zorder', order_by => 'a,b') CALL sys.compact(table => 'T', where => 'p>0 and p<3', order_strategy => 'zorder', order_by => 'a,b') CALL sys.compact(table => 'T', partition_idle_time => '60s')
expire_snapshots	To expire snapshots. Argument: table: the target table identifier. Cannot be empty. retain_max: the maximum number of completed snapshots to retain. retain_min: the minimum number of completed snapshots to retain. older_than: timestamp before which snapshots will be removed. max_deletes: the maximum number of snapshots that can be deleted at once.	CALL sys.expire_snapshots(table => 'default.T', retain_max => 10)
expire_partitions	To expire partitions. Argument: table: the target table identifier. Cannot be empty. expiration_time: the expiration interval of a partition. A partition will be expired if it‘s lifetime is over this value. Partition time is extracted from the partition value. timestamp_formatter: the formatter to format timestamp from string. timestamp_pattern: the pattern to get a timestamp from partitions. expire_strategy: specifies the expiration strategy for partition expiration, possible values: 'values-time' or 'update-time' , 'values-time' as default.	CALL sys.expire_partitions(table => 'default.T', expiration_time => '1 d', timestamp_formatter => 'yyyy-MM-dd', timestamp_pattern => '$dt', expire_strategy => 'values-time')
create_tag	To create a tag based on given snapshot. Arguments: table: the target table identifier. Cannot be empty. tag: name of the new tag. Cannot be empty. snapshot(Long): id of the snapshot which the new tag is based on. time_retained: The maximum time retained for newly created tags.	-- based on snapshot 10 with 1d CALL sys.create_tag(table => 'default.T', tag => 'my_tag', snapshot => 10, time_retained => '1 d') -- based on the latest snapshot CALL sys.create_tag(table => 'default.T', tag => 'my_tag')
create_tag_from_timestamp	To create a tag based on given timestamp. Arguments: identifier: the target table identifier. Cannot be empty. tag: name of the new tag. timestamp (Long): Find the first snapshot whose commit-time is greater than this timestamp. time_retained : The maximum time retained for newly created tags.	CALL sys.create_tag_from_timestamp(`table` => 'default.T', `tag` => 'my_tag', `timestamp` => 1724404318750, time_retained => '1 d')
delete_tag	To delete a tag. Arguments: table: the target table identifier. Cannot be empty. tag: name of the tag to be deleted. If you specify multiple tags, delimiter is ','.	CALL sys.delete_tag(table => 'default.T', tag => 'my_tag')
rollback	To rollback to a specific version of target table. Argument: table: the target table identifier. Cannot be empty. version: id of the snapshot or name of tag that will roll back to.	CALL sys.rollback(table => 'default.T', version => 'my_tag') CALL sys.rollback(table => 'default.T', version => 10)
migrate_table	Migrate hive table to a paimon table. Arguments: source_type: the origin table's type to be migrated, such as hive. Cannot be empty. table: name of the origin table to be migrated. Cannot be empty. options: the table options of the paimon table to migrate. target_table: name of the target paimon table to migrate. If not set would keep the same name with origin table delete_origin: If had set target_table, can set delete_origin to decide whether delete the origin table metadata from hms after migrate. Default is true options_map: Options map for adding key-value options which is a map.	CALL sys.migrate_table(source_type => 'hive', table => 'default.T', options => 'file.format=parquet', options_map => map('k1','v1'))
migrate_file	Migrate from hive table to a paimon table. Arguments: source_type: the origin table's type to be migrated, such as hive. Cannot be empty. source_table: name of the origin table to migrate. Cannot be empty. target_table: name of the target table to be migrated. Cannot be empty. delete_origin: If had set target_table, can set delete_origin to decide whether delete the origin table metadata from hms after migrate. Default is true	CALL sys.migrate_file(source_type => 'hive', table => 'default.T', delete_origin => true)
remove_orphan_files	To remove the orphan data files and metadata files. Arguments: table: the target table identifier. Cannot be empty, you can use database_name.* to clean whole database. older_than: to avoid deleting newly written files, this procedure only deletes orphan files older than 1 day by default. This argument can modify the interval. dry_run: when true, view only orphan files, don't actually remove files. Default is false.	CALL sys.remove_orphan_files(table => 'default.T', older_than => '2023-10-31 12:00:00') CALL sys.remove_orphan_files(table => 'default.*', older_than => '2023-10-31 12:00:00') CALL sys.remove_orphan_files(table => 'default.T', older_than => '2023-10-31 12:00:00', dry_run => true)
repair	Synchronize information from the file system to Metastore. Argument: database_or_table: empty or the target database name or the target table identifier, if you specify multiple tags, delimiter is ','	CALL sys.repair('test_db.T') CALL sys.repair('test_db.T,test_db01,test_db.T2')
create_branch	To merge a branch to main branch. Arguments: table: the target table identifier. Cannot be empty. branch: name of the branch to be merged. tag: name of the new tag. Cannot be empty.	CALL sys.create_branch(table => 'test_db.T', branch => 'test_branch') CALL sys.create_branch(table => 'test_db.T', branch => 'test_branch', tag => 'my_tag')
delete_branch	To merge a branch to main branch. Arguments: table: the target table identifier. Cannot be empty. branch: name of the branch to be merged. If you specify multiple branches, delimiter is ','.	CALL sys.delete_branch(table => 'test_db.T', branch => 'test_branch')
fast_forward	To fast_forward a branch to main branch. Arguments: table: the target table identifier. Cannot be empty. branch: name of the branch to be merged.	CALL sys.fast_forward(table => 'test_db.T', branch => 'test_branch')
reset_consumer	To reset or delete consumer. Arguments: identifier: the target table identifier. Cannot be empty. consumerId: consumer to be reset or deleted. nextSnapshotId (Long): the new next snapshot id of the consumer.	-- reset the new next snapshot id in the consumer CALL sys.reset_consumer(table => 'default.T', consumerId => 'myid', nextSnapshotId => 10) -- delete consumer CALL sys.reset_consumer(table => 'default.T', consumerId => 'myid')
mark_partition_done	To mark partition to be done. Arguments: table: the target table identifier. Cannot be empty. partitions: partitions need to be mark done, If you specify multiple partitions, delimiter is ';'.	-- mark single partition done CALL sys.mark_partition_done(table => 'default.T', parititions => 'day=2024-07-01') -- mark multiple partitions done CALL sys.mark_partition_done(table => 'default.T', parititions => 'day=2024-07-01;day=2024-07-02')