Create Unique Constraint #540
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csala
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Aug 4, 2021
csala
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Aug 4, 2021
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resolve #532
This PR adds a new constraint class called
Unique. The class takes in one parameter for its__init__:columnswhich is either a string defining the one column name that needs to be unique or a list of column names.The
Uniqueconstraint only works with thereject_samplinghandling_strategy. For this reason it only implements ais_validmethod.The
is_validmethod returns apd.Serieswhere the index corresponding to the first occurrence of a unique value for the specifiedcolumnsis set to True, and the rest are set to False.