richtia opened a new issue, #10815:
URL: https://github.com/apache/datafusion/issues/10815
### Describe the bug
Datafusion substrait consumer is unable to produce/consumer a substrait plan
that uses the same column names with different aliases
### To Reproduce
```
import substrait.gen.proto.plan_pb2 as plan_pb2
from datafusion import SessionContext
from datafusion import substrait as ss
ctx = SessionContext()
sql_query = "SELECT PS_PARTKEY K1, PS_SUPPKEY AS K1 FROM 'partsupp'"
substrait_proto = plan_pb2.Plan()
substrait_plan = ss.substrait.serde.serialize_to_plan(sql_query, ctx)
```
Error:
```
DataFusion error: Plan("Projections require unique expression names but the
expression \\"partsupp.ps_partkey AS k1\\" at position 0 and
\\"partsupp.ps_suppkey AS k1\\" at position 1 have the same name. Consider
aliasing (\\"AS\\") one of them.")')
```
### Expected behavior
_No response_
### Additional context
_No response_
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