WillAyd commented on PR #1288:
URL: https://github.com/apache/arrow-adbc/pull/1288#issuecomment-1811320056
@lidavidm just want to make sure I have the right conceptual model on how
decimal numbers get stored across multiple words. Assuming I had a really long
sequence like `12345678901234567890` is this the proper way to construct and
populate that decimal?
```c
const uint64_t large_decimal[2] = {1, 2345678901234567890};
uint8_t large_decimal_bytes[16];
std::memcpy(&large_decimal_bytes, large_decimal,
sizeof(large_decimal_bytes));
ArrowDecimalSetBytes(&decimal6, large_decimal_bytes);
```
Or do I need to worry about the endianness of the platform when defining
`large_decimal`?
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