Class MergeSort

java.lang.Object
org.apache.derby.impl.store.access.sort.MergeSort
All Implemented Interfaces:
Sort
Direct Known Subclasses:
UniqueWithDuplicateNullsMergeSort

class MergeSort extends Object implements Sort
A sort implementation which does the sort in-memory if it can, but which can do an external merge sort so that it can sort an arbitrary number of rows.