- getInput
- getProjects
Returns the project expressions.
- getRowType
- getChildExps
- getPermutation
Returns a permutation, if this projection is merely a permutation of its input
fields; otherwise nul
- getCluster
- getTraitSet
- copy
Copies a project.
- getNamedProjects
Returns a list of (expression, name) pairs. Convenient for various
transformations.
- computeSelfCost
- getMapping
Returns a mapping of a set of project expressions.The mapping is an inverse
surjection. Every target
- getConvention