Execution Engines¶
Floe delegates maintenance operations to execution engines that interact with Iceberg tables.
Supported Engines¶
| Engine | Type |
|---|---|
| Trino | TRINO |
| Apache Spark | SPARK |
Configuration¶
Select the execution engine using property or environment variable notation:
Property notation:
Environment variable notation:
Operation Support¶
Both Trino and Spark support all maintenance operations (compaction, snapshot expiration, orphan cleanup, manifest rewriting) across all supported catalogs.
Each maintenance operation maps to engine-specific commands:
| Operation | Trino | Spark |
|---|---|---|
| Rewrite Data Files | ALTER TABLE ... EXECUTE optimize |
RewriteDataFilesSparkAction |
| Expire Snapshots | ALTER TABLE ... EXECUTE expire_snapshots |
ExpireSnapshotsSparkAction |
| Orphan Cleanup | ALTER TABLE ... EXECUTE remove_orphan_files |
DeleteOrphanFilesSparkAction |
| Rewrite Manifests | ALTER TABLE ... EXECUTE optimize_manifests |
RewriteManifestsSparkAction |