TableOptimizerRun

Contains details for a table optimizer run.

compactionMetrics

A CompactionMetrics object containing metrics for the optimizer run.

Required: No

compactionStrategy

The strategy used for the compaction run. Indicates which algorithm was applied to determine how files were selected and combined during the compaction process. Valid values are:

binpack: Combines small files into larger files, typically targeting sizes over 100MB, while applying any pending deletes. This is the recommended compaction strategy for most use cases.
sort: Organizes data based on specified columns which are sorted hierarchically during compaction, improving query performance for filtered operations. This strategy is recommended when your queries frequently filter on specific columns. To use this strategy, you must first define a sort order in your Iceberg table properties using the sort_order table property.
z-order: Optimizes data organization by blending multiple attributes into a single scalar value that can be used for sorting, allowing efficient querying across multiple dimensions. This strategy is recommended when you need to query data across multiple dimensions simultaneously. To use this strategy, you must first define a sort order in your Iceberg table properties using the sort_order table property.

Type: String

Valid Values: binpack | sort | z-order

Required: No

endTimestamp

Represents the epoch timestamp at which the compaction job ended.

Type: Timestamp

Required: No

error

An error that occured during the optimizer run.

Type: String

Required: No

eventType

An event type representing the status of the table optimizer run.

Type: String

Valid Values: starting | completed | failed | in_progress

Required: No

metrics

A RunMetrics object containing metrics for the optimizer run.

This member is deprecated. See the individual metric members for compaction, retention, and orphan file deletion.

Type: RunMetrics object

Required: No

orphanFileDeletionMetrics

An OrphanFileDeletionMetrics object containing metrics for the optimizer run.

Type: OrphanFileDeletionMetrics object

Required: No

retentionMetrics

A RetentionMetrics object containing metrics for the optimizer run.

Type: RetentionMetrics object

Required: No

startTimestamp

Represents the epoch timestamp at which the compaction job was started within Lake Formation.

Type: Timestamp

Required: No

TableOptimizerRun

Contents

See Also