private static RelNode convertToRel(SqlHandlerConfig config, SqlNode node, RelTransformer relTransformer) throws RelConversionException { final RelNode rel = convertToRelRootAndJdbc(config, node, relTransformer); log("INITIAL", rel, logger, null); return transform(config, PlannerType.HEP, PlannerPhase.WINDOW_REWRITE, rel, rel.getTraitSet(), true); }