Sort
final class UniqueWithDuplicateNullsMergeSort extends MergeSort
alreadyInOrder, columnOrdering, columnOrderingAscendingMap, columnOrderingMap, columnOrderingNullsLowMap, properties, sortBufferMax, sortBufferMin, sortObserver, template
Constructor | Description |
---|---|
UniqueWithDuplicateNullsMergeSort() |
Modifier and Type | Method | Description |
---|---|---|
protected int |
compare(DataValueDescriptor[] r1,
DataValueDescriptor[] r2) |
Compares two keys.
|
checkColumnTypes, createMergeRun, doneInserting, doneScanning, doneScanning, drop, dropMergeRuns, initialize, open, openSortRowSource, openSortScan
protected int compare(DataValueDescriptor[] r1, DataValueDescriptor[] r2) throws StandardException
compare
in class MergeSort
r1
- keysr2
- keysStandardException
Apache Derby V10.14 Internals - Copyright © 2004,2018 The Apache Software Foundation. All Rights Reserved.