Base class for metadata table scan tasks. More...

#include <metadata_scan_task.h>

Inheritance diagram for iceberg::MetadataScanTask:

Public Types
enum class	TaskKind { kStatic }
	Task category, determines how the reader opens the task. More...

Public Member Functions
virtual TaskKind	task_kind () const =0
	Return how this task is read.

virtual MetadataTableKind	table_kind () const =0
	Return the metadata table whose rows this task produces.

Detailed Description

Base class for metadata table scan tasks.

Metadata tables expose table metadata (snapshots, history, etc.) as queryable Arrow tables. A task is a unit of work opened by MetadataScanTaskReader.

Member Enumeration Documentation

◆ TaskKind

enum class iceberg::MetadataScanTask::TaskKind

strong

Task category, determines how the reader opens the task.

Enumerator
kStatic	StaticMetadataTask reads in-memory table metadata (snapshots, history, refs).

Member Function Documentation

◆ table_kind()

virtual MetadataTableKind iceberg::MetadataScanTask::table_kind ( ) const

pure virtual

Return the metadata table whose rows this task produces.

Implemented in iceberg::StaticMetadataTask.

◆ task_kind()

virtual TaskKind iceberg::MetadataScanTask::task_kind ( ) const

pure virtual

Return how this task is read.