Hi all, In the PR https://github.com/apache/arrow-rs/pull/3431, I want to write decimal data with lower precision to INT32/INT64 in the parquet file.
The document of arrow c++ about Reading and writing Parquet files <https://arrow.apache.org/docs/cpp/parquet.html#logical-types> requires `(2) On the write side, a FIXED_LENGTH_BYTE_ARRAY is always emitted.` But in the definition of parquet format <https://github.com/apache/parquet-format/blob/master/LogicalTypes.md#decimal> for logical type of decimal, the decimal type can be represented by INT32/INT64 for the lower precision. Why we not follow the definition of parquet <https://github.com/apache/parquet-format/blob/master/LogicalTypes.md#decimal> for writing the parquet file? Thanks Kun
