Represents differences between a column definition and database metadata for the existing column.
Whether the existing column has a matching auto-increment sequence.
Whether the existing column identifier matches and has the correct casing.
Whether the default value of the existing column is correct.
Whether the nullability of the existing column is correct.
Whether the size and scale of the existing column, if applicable, is correct.
Returns true if there is a difference between the column definition and the existing column in the database.
true