Il dom 23 set 2018, 22:22 Vladimir Sitnikov <sitnikov.vladi...@gmail.com> ha scritto:
> Enrico, > > 1) EnumerableMergeJoinRule does not seem to work (see > https://issues.apache.org/jira/browse/CALCITE-2592 ). > It seems to be broken since Calcite 1.9.0 > > 2) It turns out you need to add RelTraitDefs explicitly to the planner, > otherwise it just ignores the traits (or something like that). > > Would you please try > adding org.apache.calcite.rel.RelCollationTraitDef#INSTANCE to the list of > traits you use for planning? (see > > https://github.com/diennea/herddb/blob/0c7c01584350d57d8102511b987e5f880f3f65bd/herddb-core/src/main/java/herddb/sql/CalcitePlanner.java#L412 > ) > > It works! > Now the planner does not choose a merge join as expected. And I guess it will never do so due the bug you have mentioned Thank you very much Enrico > > PS. You are using a somewhat creative way of planning the whole thing as > Enumerable then converting the plan relations to your own format. > Uh Othewise I should have created my own Convention, but as far I understand it is not really needed, in the future maybe we refactor the whole integration with Calcite Enrico > Vladimir > -- -- Enrico Olivelli
