don4get commented on code in PR #43616:
URL: https://github.com/apache/arrow/pull/43616#discussion_r1709773971
##########
go/parquet/internal/utils/bit_packing_avx2_amd64.go:
##########
@@ -45,6 +45,10 @@ func unpack32Avx2(in io.Reader, out []uint32, nbits int) int
{
buffer.Grow(n)
io.CopyN(buffer, in, int64(n))
+ if buffer.Len() == 0 {
+ return 0
+ }
Review Comment:
With the dataset I have it makes sense.
I don't have enough experience with arrow to know if `n!=0 &&
buffer.Len()==0` is possible. In this case, the program would crash.
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