betodealmeida commented on a change in pull request #10456:
URL:
https://github.com/apache/incubator-superset/pull/10456#discussion_r461837421
##########
File path: superset/db_engine_specs/presto.py
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@@ -653,12 +656,15 @@ def expand_data( # pylint: disable=too-many-locals
# expand columns; we append them to the left so they are added
# immediately after the parent
expanded = get_children(column)
- to_process.extendleft((column, level) for column in expanded)
+ to_process.extendleft((column, level) for column in
expanded[::-1])
Review comment:
I reversed `expanded` so that sub-columns are added in the right order,
otherwise we get:
```
a ROW(b, c) => a, a.c, a.b
```
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