All Implemented Interfaces:
NamedWriteable, Writeable, Resolvable
Direct Known Subclasses:
Aggregate, ChangePoint, Dedup, Drop, Enrich, Eval, Filter, InferencePlan, InlineStats, Insist, Limit, Lookup, MvExpand, OrderBy, Project, RegexExtract, Rename, RrfScoreEval, Sample, TopN

public abstract class UnaryPlan extends LogicalPlan
A UnaryPlan is a LogicalPlan with exactly one child, for example, WHERE x in a SQL statement is an UnaryPlan.