Condensed representation of a node and its subtree. Only present for `SCALAR` PlanNode(s).

Attributes

• description (String): A string representation of the expression subtree rooted at this node. Defaults to: null.
• subqueries (Map[String, Integer]): A mapping of (subquery variable name) -> (subquery node id) for cases where the `description` string of this node references a `SCALAR` subquery contained in the expression subtree rooted at this node. The referenced `SCALAR` subquery may not necessarily be a direct child of this node. Defaults to: null.