(2018/08/03 22:18), Etsuro Fujita wrote:
Here is a patch for refusing to generate PWJ paths when WRVs are involved:
* We no longer need to handle WRVs, so I've simplified
build_joinrel_tlist() and setrefs.c to what they were before
partition-wise join went in, as in the previous patch.

* attr_needed data for each child is used for building child-joins'
tlists, but I think we can build those by applying
adjust_appendrel_attrs to the parent's tlists, without attr_needed. So,
I've also removed that as in the previous patch.
One thing to add: as for the latter, we don't need the changes to 
placeholder.c either, so I've also simplified that to what they were 
before partition-wise join went in.
Best regards,
Etsuro Fujita

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