Hi ​@pickle21 I think the easiest way to do a high level check is to run a reconciliation project on your data: https://docs.ataccama.com/one/16.0.0/data-quality/data-reconciliation.html My understanding is that you have some candidates and you need to verify whether they really are duplicate tables (while you don’t need to validate every single duplicate value or row). A reconciliation project should give you enough information to confirm if tables are duplicates, or sufficiently similar to be considered duplicates.

It may or may not be the best approach depending on how your data is stored and structured. What is(are) the datasource(s)? What are the data formats? Will Ataccama be able to identify pairs of tables based on their names? Are attribute names the same in both tables in a given pair, or it’s necessary to actually compare the data points while disregarding column names? Please let me know if you think reconciliation projects will do or you’re looking for something else.