SchemaFieldNotFoundError
when chaining select
and collect
#17739
Labels
bug
Something isn't working
needs triage
Awaiting prioritization by a maintainer
python
Related to Python Polars
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Reproducible example
Log output
Issue description
There is a bug in Polars where chaining
select
calls on aLazyFrame
and subsequently callingcollect
results in aSchemaFieldNotFoundError
.This bug was originally reported in pandera/issues#1657.
Expected behavior
The final chained
select
andcollect
call should execute without errors, and the result DataFrame should be returned as expected.Installed versions
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