Distinct check rule

Description

The Distinct Check rule ensures that a specific column contains distinct (unique) values. This rule verifies whether the values in a given column meet the configured success criteria based on the uniqueness of the values.

Configuration Fields

• Operator Options

  • Greater than
  • Less than
  • Equal to
  • Between (requires specifying a start and end range)

• Operator Defines the comparison operation (Greater Than, Less Than, Equal To, or Between).

• Value The threshold value used for success criteria. Required for Greater than, Less than, and Equal to operators.

• Value Range Required only when the Between operator is selected, specifying the start and end range.

• Threshold Type Indicates whether the Value or Value Range to be considered as percentage or an absolute count.

• Allow Null Values Determines if null values are permitted.

Success Criteria

The success criteria are evaluated based on the number of distinct values in the column.

• If the column has N rows, the number of distinct values is calculated.
• The success condition is met if the distinct value count satisfies the given operator and value.
• For example, if operator is Greater than and value is 3, then the column must have more than 3 distinct values to be within the threshold.

Sample Input

ID	Name	Age
1	Alice	25
2	Bob	30
3	Alice	25
4	Charlie	40
5	Alice	NULL

Sample Configuration

• Operator Greater than
• Value 3
• Threshold Type Absolute Count
• Allow Null Values False

Sample Output

Column Name	Rule Name	Success Count	Within Threshold	Null Count
Name	Name Distinct Check	3	No	0
Age	Age Distinct Check	3	No	1