On Tue, Dec 6, 2022 at 5:00 PM Richard Guo <guofengli...@gmail.com> wrote:
> As we can see, MemoizePath can be generated for partitioned AppendPath > but not for union-all AppendPath. > > For the fix I think we can relax the check in create_append_path and > always use get_baserel_parampathinfo if the parent is a baserel. > BTW, IIUC currently we don't generate any parameterized MergeAppend paths, as explained in generate_orderedappend_paths. So the codes that gather information from a MergeAppend path's param_info for run-time partition pruning in create_merge_append_plan seem unnecessary. Attached is a patch for this change and the changes described upthread. Thanks Richard
v1-0001-Fix-ParamPathInfo-for-AppendPath.patch
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