Effective in version 10.4.1.1, column similarity does not infer numeric data types for pattern match. It also does not infer X, XX, and XXX patterns for all data types.
Previously, column similarity used the pattern match with other factors to infer numeric data and it also inferred X, XX, and XXX patterns for all data types.
For more information, see the "Enterprise Data Catalog Concepts" chapter in the
Informatica 10.4.1 Enterprise Data Catalog Administrator Guide