On 9/23/2010 9:53 PM, Tom Lane wrote:
David Schmitt<da...@dasz.at> writes:
Executing the attached example.sql on a fresh database demonstrates the
problem I'm seeing:
Found it. If you need a patch right away, it's a one-liner:
diff --git a/src/backend/optimizer/path/allpaths.c
b/src/backend/optimizer/path/allpaths.c
index 2d86da3..b7cf0b8 100644
--- a/src/backend/optimizer/path/allpaths.c
+++ b/src/backend/optimizer/path/allpaths.c
@@ -425,7 +425,7 @@ set_append_rel_pathlist(PlannerInfo *root, RelOptInfo *rel,
childpath = childrel->cheapest_total_path;
if (IsA(childpath, AppendPath))
subpaths = list_concat(subpaths,
- ((AppendPath *)
childpath)->subpaths);
+ list_copy(((AppendPath *)
childpath)->subpaths));
else
subpaths = lappend(subpaths, childpath);
Thank you very very much, you made my day! *phew*
Best Regards, David
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