pitrou commented on code in PR #38147:
URL: https://github.com/apache/arrow/pull/38147#discussion_r1350379177
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cpp/src/arrow/compute/light_array.cc:
##########
@@ -80,26 +80,24 @@ KeyColumnArray KeyColumnArray::Slice(int64_t offset,
int64_t length) const {
KeyColumnArray sliced;
sliced.metadata_ = metadata_;
sliced.length_ = length;
- uint32_t fixed_size =
- !metadata_.is_fixed_length ? sizeof(uint32_t) : metadata_.fixed_length;
sliced.buffers_[0] =
buffers_[0] ? buffers_[0] + (bit_offset_[0] + offset) / 8 : nullptr;
sliced.mutable_buffers_[0] =
mutable_buffers_[0] ? mutable_buffers_[0] + (bit_offset_[0] + offset) /
8 : nullptr;
sliced.bit_offset_[0] = (bit_offset_[0] + offset) % 8;
- if (fixed_size == 0 && !metadata_.is_null_type) {
+ if (metadata_.fixed_length == 0 && !metadata_.is_null_type) {
sliced.buffers_[1] =
buffers_[1] ? buffers_[1] + (bit_offset_[1] + offset) / 8 : nullptr;
sliced.mutable_buffers_[1] = mutable_buffers_[1]
? mutable_buffers_[1] + (bit_offset_[1] +
offset) / 8
: nullptr;
sliced.bit_offset_[1] = (bit_offset_[1] + offset) % 8;
} else {
- sliced.buffers_[1] = buffers_[1] ? buffers_[1] + offset * fixed_size :
nullptr;
+ sliced.buffers_[1] = buffers_[1] ? buffers_[1] + offset *
metadata_.fixed_length : nullptr;
Review Comment:
So, IIUC, `uint32_t * int64_t` would result in a `uint32_t` result?
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