Package 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	Description
static final RelMetadataProvider	SOURCE

Constructor Summary

Constructors

Constructor	Description
RelMdMaxRowCount()

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Details

SOURCE

public static final RelMetadataProvider SOURCE

Constructor Details

RelMdMaxRowCount

public RelMdMaxRowCount()

Method Details

getDef

public MetadataDef<BuiltInMetadata.MaxRowCount> getDef()

Specified by:

getDef in interface MetadataHandler<BuiltInMetadata.MaxRowCount>

getMaxRowCount

public @Nullable Double getMaxRowCount(Union rel,
 RelMetadataQuery mq)

getMaxRowCount

public @Nullable Double getMaxRowCount(Intersect rel,
 RelMetadataQuery mq)

getMaxRowCount

public @Nullable Double getMaxRowCount(Minus rel,
 RelMetadataQuery mq)

getMaxRowCount

public @Nullable Double getMaxRowCount(Filter rel,
 RelMetadataQuery mq)

getMaxRowCount

public @Nullable Double getMaxRowCount(Calc rel,
 RelMetadataQuery mq)

getMaxRowCount

public @Nullable Double getMaxRowCount(Project rel,
 RelMetadataQuery mq)

getMaxRowCount

public @Nullable Double getMaxRowCount(Exchange rel,
 RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(Sort rel,
 RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(EnumerableLimit rel,
 RelMetadataQuery mq)

getMaxRowCount

public @Nullable Double getMaxRowCount(Aggregate rel,
 RelMetadataQuery mq)

getMaxRowCount

public @Nullable Double getMaxRowCount(Join rel,
 RelMetadataQuery mq)

getMaxRowCount

public @Nullable Double getMaxRowCount(TableScan rel,
 RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(Values values,
 RelMetadataQuery mq)

getMaxRowCount

public @Nullable Double getMaxRowCount(TableModify rel,
 RelMetadataQuery mq)

getMaxRowCount

public Double getMaxRowCount(RelSubset rel,
 RelMetadataQuery mq)

getMaxRowCount

public @Nullable Double getMaxRowCount(RelNode rel,
 RelMetadataQuery mq)