LEVELFILTER

Basic Overview

Description	Filters the input to rows where a certain condition is met between level values of two compared levels.
Signature	LEVELFILTER('Node', "Level1", "Level2" [, "Operation" [, "CaseSensitive"]])
Parameters	Node: The input node with the values to be filter. Level1: The first levels for which level values are to be compared. Level2: The second level for which level values are to be compared. Operation: The filtering condition. Supported operations are: EQ: Only returns rows where values of Level1 and Level2 are equal. (default). NEQ: Only returns rows where values of Level1 and Level2 are different. STARTSWITH: Only returns rows where values of Level1 starts with the values of Level2. ENDSWITH: Only returns rows where values of Level1 ends with the values of Level2. CONTAINS: Returns rows where values of Level1 contains the values of Level2. CaseSensitive: Whether the perform level value check in a case sensitive manner or not. Supported values are: TRUE: Performs the check taking upper/lower case letters into account. (default) FALSE: Performs the check without taking upper/lower case letters into account.
Limitations/Notes	Node must contain both Level1 and Level2 to perform the filtering. Compare levels Level1 and Level2 cannot be the same as each other. For the operations STARTSWITH, ENDSWITH, and CONTAINS the checks are performed based on first compare level (Level1). Meaning the filtering is made according to “does a level value of Level1 starts with a value of Level2?“ and not the other way around. For the operations STARTSWITH, ENDSWITH, and CONTAINS equal level values will return true values. The default operation is EQ if not specified. The default case sensitive value is TRUE if not specified.

Examples

The input node contains levels Year, Product, and OtherProduct.

Input node =

Year	Product	Other Product	Value
2021	Car	Car	10
2022	Truck	Plane	20
2023	Bicycle	bicycle	30
2024	Van	Truck	40

LEVELFILTER('Input node', “Product“, “Other Product“, “EQ“, “FALSE“) would produce:

Year	Product	Other Product	Value
2021	Car	Car	10
2023	Bicycle	bicycle	30

In this example only rows with same level values between “Product” and “Other Product“ are kept. Note that the row with “bicycle” is only kept because the operation is not performed case sensitive.

However, performing the same operation case sensitive e.g.

LEVELFILTER('Input node', “Product“, “Other Product“, “EQ“, “TRUE“) would produce:

Year	Product	Other Product	Value
2021	Car	Car	10

LEVELFILTER('Input node', “Product“, “Other Product“, “NEQ“, “FALSE“) would produce:

Year	Product	Other Product	Value
2022	Truck	Plane	20
2024	Van	Truck	40

Not equals operation only kept the rows where the values of “Product” and “Other Product” differ.

Similarly, case sensitive version e.g.

LEVELFILTER('Input node', “Product“, “Other Product“, “NEQ“, “TRUE“) would produce:

Year	Product	Other Product	Value
2022	Truck	Plane	20
2023	Bicycle	bicycle	30
2024	Van	Truck	40

Other examples with different operation types

Input node =

Year	Filter Year	Value
2021	20	10
2022	202	20
2023	02	30
2024	24	40

LEVELFILTER('Input node', “Year“, “Filter Year“, “STARTSWITH“) would produce:

Year	Filter Year	Value
2021	20	10
2022	202	20

In this example, only the rows with level values of “Year” which start with the level values of “Filter Year” is kept in the result. (2021, 2022)

LEVELFILTER('Input node', “Year“, “Filter Year“, “ENDSWITH“) would produce:

Year	Filter Year	Value
2024	24	40

In this example, only the rows with level values of “Year” which ends with the level values of “Filter Year” is kept in the result. (2024)

LEVELFILTER('Input node', “Year“, “Filter Year“, “CONTAINS“) would produce:

Year	Filter Year	Value
2021	20	10
2022	202	20
2023	02	30
2024	24	40

In this example, all the rows are kept since each row's Year value contains the value in Filter Year. (2021, 2022, 2023, 2024)