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discord9
40e02ff6b6
Bump the pinned DataFusion fork from 452cb4b786 to its linear successor
4c8a6bf283. The successor preserves the existing Dictionary-literal
Substrait fix, includes the intervening join-cardinality overflow fix,
and adds DictionaryGroupValuesColumn support so dictionary-encoded group
keys can use the columnar grouping path instead of GroupValuesRows.
Add an end-to-end integration test that writes 1,200 rows to an
append-mode flat SST, groups its dictionary-encoded hostname tag by hour,
and checks all six ordered result tuples exactly. AggregateExec does not
expose the concrete GroupValues implementation through EXPLAIN or metrics;
direct DictionaryGroupValuesColumn path coverage remains in the pinned
DataFusion fork tests.
(cherry picked from commit d99b0df374)
Signed-off-by: discord9 <discord9@163.com>