Package org.apache.druid.catalog.model.table

Class DatasourceDefn

java.lang.Object

org.apache.druid.catalog.model.ObjectDefn

org.apache.druid.catalog.model.TableDefn

org.apache.druid.catalog.model.table.DatasourceDefn

public class DatasourceDefn
extends TableDefn

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DatasourceDefn.ClusterKeysDefn
static class	DatasourceDefn.HiddenColumnsDefn
static class	DatasourceDefn.ProjectionsDefn
static class	DatasourceDefn.SegmentGranularityFieldDefn

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ALL_GRANULARITY	Catalog property value for the "all time" granularity.
static final String	CLUSTER_KEYS_PROPERTY	The clustering column names and sort order for each new segment.
static final String	HIDDEN_COLUMNS_PROPERTY	The set of existing columns to "delete" (actually, just hide) from the SQL layer.
static final String	PROJECTIONS_KEYS_PROPERTY
static final String	SEALED_PROPERTY
static final String	SEGMENT_GRANULARITY_PROPERTY	Segment grain at ingestion and initial compaction.
static final String	TABLE_TYPE
static final String	TARGET_SEGMENT_ROWS_PROPERTY	The target segment size at ingestion and initial compaction.

Fields inherited from class org.apache.druid.catalog.model.TableDefn

DESCRIPTION_PROPERTY

Constructor Summary

Constructors

Constructor	Description
DatasourceDefn()

Method Summary

Modifier and Type	Method	Description
static boolean	isDatasource(String tableType)	Check if TableSpec.type() is TABLE_TYPE
static boolean	isDatasource(ResolvedTable table)
protected void	validateColumn(ColumnSpec spec)	Table-specific validation of a column spec.

Methods inherited from class org.apache.druid.catalog.model.TableDefn

bind, merge, mergeColumns, validate, validateColumns

Methods inherited from class org.apache.druid.catalog.model.ObjectDefn

mergeProperties, name, properties, property, toPropertyMap, typeValue, validate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

SEGMENT_GRANULARITY_PROPERTY

public static final String SEGMENT_GRANULARITY_PROPERTY

Segment grain at ingestion and initial compaction. Aging rules may override the value as segments age. If not provided here, then it must be provided at ingestion time.

See Also:

• Constant Field Values

ALL_GRANULARITY

public static final String ALL_GRANULARITY

Catalog property value for the "all time" granularity.

See Also:

• Constant Field Values

TARGET_SEGMENT_ROWS_PROPERTY

public static final String TARGET_SEGMENT_ROWS_PROPERTY

The target segment size at ingestion and initial compaction. If unset, then the system setting is used.

See Also:

• Constant Field Values

CLUSTER_KEYS_PROPERTY

public static final String CLUSTER_KEYS_PROPERTY

The clustering column names and sort order for each new segment.

See Also:

• Constant Field Values

PROJECTIONS_KEYS_PROPERTY

public static final String PROJECTIONS_KEYS_PROPERTY

See Also:

• Constant Field Values

HIDDEN_COLUMNS_PROPERTY

public static final String HIDDEN_COLUMNS_PROPERTY

The set of existing columns to "delete" (actually, just hide) from the SQL layer. Used to "remove" unwanted columns to avoid the need to rewrite existing segments to accomplish the task.

See Also:

• Constant Field Values

SEALED_PROPERTY

public static final String SEALED_PROPERTY

See Also:

• Constant Field Values

TABLE_TYPE

public static final String TABLE_TYPE

See Also:

• Constant Field Values

Constructor Details

DatasourceDefn

public DatasourceDefn()

Method Details

validateColumn

protected void validateColumn(ColumnSpec spec)

Description copied from class: TableDefn

Table-specific validation of a column spec. Override for table definitions that need table-specific validation rules.

Overrides:

validateColumn in class TableDefn

isDatasource

public static boolean isDatasource(String tableType)

Check if TableSpec.type() is TABLE_TYPE

isDatasource

public static boolean isDatasource(ResolvedTable table)