bkietz commented on code in PR #13215:
URL: https://github.com/apache/arrow/pull/13215#discussion_r885918531
##########
cpp/src/arrow/compute/exec/ir_consumer.cc:
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@@ -152,14 +152,14 @@ struct ConvertLiteralImpl {
switch (t.id()) {
case Type::DECIMAL128: {
std::array<uint64_t, 2> little_endian;
- std::memcpy(little_endian.data(), lit->value(), lit->value()->size());
+ std::memcpy(little_endian.data(), lit->value()->data(),
lit->value()->size());
Review Comment:
The size of the literal string is asserted to be equal to the decimal's
byte_width above, so every byte of `little_endian` should be safely overwritten
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