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authorTom Lane2007-05-24 18:58:42 +0000
committerTom Lane2007-05-24 18:58:42 +0000
commitce5b24abedd3db058c832aabb19940935b2903ae (patch)
tree4f16a19a6f4ba865a1bd10560768ce972640598b /src/include/commands/explain.h
parenta868e24660357d6f214511198e47bd0962dfdc5d (diff)
Remove ruleutils.c's use of varnoold/varoattno as a shortcut for determining
what a Var node refers to. This is no longer necessary because the new flat-range-table representation of plan trees makes it relatively easy to dig down through child plan levels to find the original reference; and to keep doing it that way, we'd have to store joinaliasvars lists in flattened RTEs, as demonstrated by bug report from Leszek Trenkner. This change makes varnoold/varoattno truly just debug aids, which wasn't quite the case before. Perhaps we should drop them, or only have them in assert-enabled builds?
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