Interface DefinitionPushDownTransformer

  • All Superinterfaces:
    IQTreeTransformer
    All Known Implementing Classes:
    DefinitionPushDownTransformerImpl

    public interface DefinitionPushDownTransformer
    extends IQTreeTransformer
    Pushes down in the tree a new definition (for a new variable) until: 1. the condition can be evaluated to true/false/null 2. or the definition is blocked by a (inner/left) join (its variables are defined in different children)