Skip to main content

Pentaho+ documentation has moved!

The new product documentation portal is here. Check it out now at


Hitachi Vantara Lumada and Pentaho Documentation


Parent article

Specifies the transitive closure of a parent-child hierarchy. Optional, but recommended for better performance. The closure is provided as a set of (parent/child) pairs: since it is the transitive closure these are actually (ancestor/descendant) pairs.


AttributeData TypeDefinition
parentColumnStringThe parent column
childColumnStringThe child column

Constituent Elements

TableA fact or dimension table