Module datarush.matching

Package com.pervasive.datarush.matching.block

package com.pervasive.datarush.matching.block
Provides operators for generating possible candidate pairs. Generally, these do not need to be used directly, but are instead used by the higher-level operators in com.pervasive.datarush.matching
  • Classes
    Class
    Description
    BlockCartesian
    Block the input data by creating a cartesian product of the data.
    BlockRecords
    Block records into groups of like records based on a set of key fields and generate record pairs from these groups.
    BlockSelf
    Block records from a single source into groups of like records based on a set of key fields and generate record pairs from these groups.
    GroupPairsSortedRows
    Finds key groupings within the input key fields and, for each key group, generates all pairwise combinations of distinct rows in that group.
    LargeGroupDetector
    An operator that issues warnings if a dataflow contains an unusually large number of distinct key values.