Gabriel39 commented on code in PR #67166:
URL: https://github.com/apache/doris/pull/67166#discussion_r3912709994
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fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/NestedColumnPruning.java:
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@@ -662,7 +663,7 @@ public void setAccessByPath(List<String> path, int
accessIndex, ColumnAccessPath
accessPartialChild = true;
if (this.type.isStructType()) {
- String fieldName = path.get(accessIndex).toLowerCase();
+ String fieldName =
path.get(accessIndex).toLowerCase(Locale.ROOT);
Review Comment:
Fixed in d6f98ebafd. Cast path remapping now compares the already
ROOT-normalized runtime keys exactly, matching the access-tree identity rules.
Added a cast-plus-pruning regression with `i` and dotless `ı`; before the fix
it selected the first source field, and after the fix it preserves and prunes
the requested second sibling.
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