Support FixedSizedListArray
for length
kernel
#4517
Labels
arrow
Changes to the arrow crate
enhancement
Any new improvement worthy of a entry in the changelog
good first issue
Good for newcomers
Is your feature request related to a problem or challenge? Please describe what you are trying to do.
While implement unnest in DataFusion for FixedSizeListArray (see apache/datafusion#6903) it turns out there is no support for
FixedSizeListArray
in thelength
kernelhttps://docs.rs/arrow/latest/arrow/compute/kernels/length/fn.length.html
Describe the solution you'd like
While it sounds silly, I would like to Support
FixedSizedListArray
forlength
kernelSpecifically, it would be nice to get the NULLs handled correctly even though all the values will of course be the same (fixed!) size lenth
Here is a reproducer:
It should print out
[3, null, 3]
Describe alternatives you've considered
Additional context
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