starlink-tjoin-java

Description

Classes for performing table joins by matching rows to each other. The matching is done in an entirely configurable and pluggable way by defining a MatchEngine which defines what counts as a match between two tuples (rows) and can be used to work out what counts as a near miss too. Matching is (except in pathological cases) an O(N ln N) process, where N is the total number of rows in all the tables participating in a match.

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Homepage

https://github.com/Starlink/starjava/tree/master/tjoin

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