org.apache.calcite.rel.metadata

Class RelMdMaxRowCount

java.lang.Object

org.apache.calcite.rel.metadata.RelMdMaxRowCount

All Implemented Interfaces:

MetadataHandler<BuiltInMetadata.MaxRowCount>

public class RelMdMaxRowCount
extends Object
implements MetadataHandler<BuiltInMetadata.MaxRowCount>

RelMdMaxRowCount supplies a default implementation of RelMetadataQuery.getMaxRowCount(org.apache.calcite.rel.RelNode) for the standard logical algebra.

Field Summary

Fields

Modifier and Type	Field and Description
static RelMetadataProvider	SOURCE

Constructor Summary

Constructors

Constructor and Description
RelMdMaxRowCount()

Method Summary

Modifier and Type	Method and Description
MetadataDef<BuiltInMetadata.MaxRowCount>	getDef()
Double	getMaxRowCount(Aggregate rel, RelMetadataQuery mq)
Double	getMaxRowCount(EnumerableLimit rel, RelMetadataQuery mq)
Double	getMaxRowCount(Filter rel, RelMetadataQuery mq)
Double	getMaxRowCount(Intersect rel, RelMetadataQuery mq)
Double	getMaxRowCount(Join rel, RelMetadataQuery mq)
Double	getMaxRowCount(Minus rel, RelMetadataQuery mq)
Double	getMaxRowCount(Project rel, RelMetadataQuery mq)
Double	getMaxRowCount(RelNode rel, RelMetadataQuery mq)
Double	getMaxRowCount(RelSubset rel, RelMetadataQuery mq)
Double	getMaxRowCount(Sort rel, RelMetadataQuery mq)
Double	getMaxRowCount(TableScan rel, RelMetadataQuery mq)
Double	getMaxRowCount(Union rel, RelMetadataQuery mq)
Double	getMaxRowCount(Values values, RelMetadataQuery mq)

Methods inherited from class java.lang.Object

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

Field Detail

SOURCE

public static final RelMetadataProvider SOURCE

Constructor Detail

RelMdMaxRowCount

public RelMdMaxRowCount()

Method Detail

getDef

public MetadataDef<BuiltInMetadata.MaxRowCount> getDef()

Specified by:

getDef in interface MetadataHandler<BuiltInMetadata.MaxRowCount>

getMaxRowCount

public Double getMaxRowCount(Union rel,
                             RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(Intersect rel,
                             RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(Minus rel,
                             RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(Filter rel,
                             RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(Project rel,
                             RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(Sort rel,
                             RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(EnumerableLimit rel,
                             RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(Aggregate rel,
                             RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(Join rel,
                             RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(TableScan rel,
                             RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(Values values,
                             RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(RelSubset rel,
                             RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(RelNode rel,
                             RelMetadataQuery mq)