No, there is no API to return rule output. But there is a class RuleEventLogger, which can log the input and output of the rule.
On 2022/11/02 16:53:53 "G.O. Barbulescu" wrote: > Dear Apache Calcite development team, > > I am currently working on a research project in which I am considering Apache > Calcite for the parsing stage. I was wondering if there exists an API to > return the intermediate representation (relational tree) for the pre-defined > SQL rewrite rules? > For instance, a relational tree for push-filter-though-join rule in format > (LHS relational tree => RHS relational tree). > The motivation behind this is to have a set of rewrite rules in the same > format (IR) as the output of opTree.explain() to build new optimizers. > > Thanks for your time. > > Many thanks, > George Barbulescu > > >
