alamb commented on code in PR #6373:
URL: https://github.com/apache/arrow-datafusion/pull/6373#discussion_r1196987499
##########
datafusion/core/tests/sqllogictests/test_files/union.slt:
##########
@@ -446,3 +446,30 @@ drop table t1
statement ok
drop table t2
+
+# test UNION ALL aliases correctly with all aliased
Review Comment:
I double checked that this plan is different on main (the aliases remain as
`a`, `b` and `c`) 👍
```
❯ explain select 1 a group by a union all select 2 b union all select 3 c;
+---------------+--------------------------------------------------------------------------------------------------------------+
| plan_type | plan
|
+---------------+--------------------------------------------------------------------------------------------------------------+
| logical_plan | Union
|
| | Projection: Int64(1) AS a
|
| | Aggregate: groupBy=[[Int64(1)]], aggr=[[]]
|
| | EmptyRelation
|
| | Projection: Int64(2) AS b
|
| | EmptyRelation
|
| | Projection: Int64(3) AS c
|
| | EmptyRelation
|
| physical_plan | UnionExec
|
| | ProjectionExec: expr=[Int64(1)@0 as a]
|
| | AggregateExec: mode=FinalPartitioned, gby=[Int64(1)@0
as Int64(1)], aggr=[] |
| | CoalesceBatchesExec: target_batch_size=8192
|
| | RepartitionExec: partitioning=Hash([Column { name:
"Int64(1)", index: 0 }], 16), input_partitions=16 |
| | RepartitionExec:
partitioning=RoundRobinBatch(16), input_partitions=1
|
| | AggregateExec: mode=Partial, gby=[1 as
Int64(1)], aggr=[] |
| | EmptyExec: produce_one_row=true
|
| | ProjectionExec: expr=[2 as b]
|
| | EmptyExec: produce_one_row=true
|
| | ProjectionExec: expr=[3 as c]
|
| | EmptyExec: produce_one_row=true
|
| |
|
+---------------+--------------------------------------------------------------------------------------------------------------+
```
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