davlee1972 opened a new issue, #43858: URL: https://github.com/apache/arrow/issues/43858
### Describe the enhancement requested https://github.com/apache/arrow/blob/main/python/pyarrow/types.pxi Can we add more aliases? I added some additional ones on my own, but it would be nice if we can make these standard? ``` "binary" to pa.binary() "fixed_sized_binary[?]" to pa.binary(?) "decimal128[?]" or "decimal128[?,?]" to pa.decimal128(?) or pa.decimal128(?,?) "decimal256[?]" or "decimal256[?,?]" to pa.decimal256(?) or pa.decimal256(?,?) "decimal[?]" or "decimal[?,?]" to pa.decimal256() if precision is > 38 "decimal[?]" or "decimal[?,?]" to pa.decimal128() if precision is <= 38 "timestamp" to pa.timestamp('us') "date" to pa.date32() "int" to pa.int32() ``` ``` if obj.startswith("binary") or obj.startswith("fixed_size_binary"): res = re.search(r"\[.*?\]", obj) if res: length = int(res.group()[1:-1]) obj = pa.binary(length) else: obj = pa.binary() elif obj.startswith("decimal"): res = re.search(r"\[.*?\]", obj) scale_precision = [] if res: scale_precision = [int(i) for i in res.group()[1:-1].split(",")] if obj.startswith("decimal256"): dec_func = pa.decimal256 elif obj.startswith("decimal128"): dec_func = pa.decimal128 elif obj.startswith("decimal") if scale_precision[0] > 38: dec_func = pa.decimal256 else: dec_func = pa.decimal128 if len(scale_precision) == 1: obj = dec_func(scale_precision[0]) elif len(scale_precision) == 2: obj = dec_func(scale_precision[0], scale_precision[1]) else: if obj == "timestamp": # default timestamp to microsecond precision obj = "timestamp[us]" elif obj == "date": # default date to date32 which is an alias for date32[day] obj = "date32" elif obj == "int": # default int to int32 obj = "int32" obj = pa.type_for_alias(obj) return obj ``` ### Component(s) C++, Python -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
