milenkovicm commented on PR #19757:
URL: https://github.com/apache/datafusion/pull/19757#issuecomment-3739945569
Just for illustration, this is what I was getting if physical operator run
multiple times (I would bet it run 3 times in this example 😀 )
```
AdaptiveDatafusionExec: is_final=false, plan_id=1, stage_id=pending
ProjectionExec: expr=[big_col@1 as big_col, big_col@0 as big_col]
CrossJoinExec
CoalescePartitionsExec
ExchangeExec: partitioning=None, plan_id=2, stage_id=pending,
stage_resolved=false
CooperativeExec
CooperativeExec
CooperativeExec
MockPartitionedScan: num_partitions=2,
statistics=[Rows=Inexact(1024), Bytes=Inexact(8192), [(Col[0]:)]]
ExchangeExec: partitioning=Hash([big_col@0], 2), plan_id=0,
stage_id=0, stage_resolved=true
CooperativeExec
CooperativeExec
CooperativeExec
StatisticsExec: col_count=1, row_count=Inexact(262144)
```
my naive (wrong) tinking was that change to transform down would fix it.
anyway, thanks @danielhumanmod
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