Module merge_sort

Merge sort logical plan for distributed query execution, roughly corresponding to the SortPreservingMergeExec operator in datafusion

Structs

• MergeSortLogicalPlan
  MergeSort Logical Plan, have same field as Sort, but indicate it is a merge sort, which assume each input partition is a sorted stream, and will use SortPreserveingMergeExec to merge them into a single sorted stream.

Functions

• merge_sort_transformer
  Turn Sort into MergeSort if possible