class Date64Type : public arrow::DateType<https://arrow.apache.org/docs/cpp/api/datatype.html#_CPPv4N5arrow8DateTypeE>¶<https://arrow.apache.org/docs/cpp/api/datatype.html#_CPPv4N5arrow10Date64TypeE> #include <arrow/type.h>
Concrete type class for 64-bit date data (as number of milliseconds since UNIX epoch) Timestamps are a different logical type with precision and timezone support. <https://arrow.apache.org/docs/cpp/api/datatype.html> Data Types — Apache Arrow v11.0.0<https://arrow.apache.org/docs/cpp/api/datatype.html> arrow.apache.org<https://arrow.apache.org/docs/cpp/api/datatype.html> <https://arrow.apache.org/docs/cpp/api/datatype.html> On Feb 22, 2023, at 4:27 AM, Raphael Taylor-Davies <[email protected]> wrote: External Email: Use caution with links and attachments Hi, The Date64 type is a source of common confusion for myself and the community and I wonder if someone might be able to shed some light on its purpose. In particular: - It cannot be round-tripped through parquet - It is unclear how it is different from Timestamp(TimeUnit::Millisecond) - Does it represent the quantity 2020-03-19 00:00:00 or 2020-03-19, i.e. without the time - What should be done if the value is not divisible by number of milliseconds in a day Any clarifications would be most appreciated. Kind Regards, Raphael This message may contain information that is confidential or privileged. If you are not the intended recipient, please advise the sender immediately and delete this message. See http://www.blackrock.com/corporate/compliance/email-disclaimers for further information. Please refer to http://www.blackrock.com/corporate/compliance/privacy-policy for more information about BlackRock’s Privacy Policy. For a list of BlackRock's office addresses worldwide, see http://www.blackrock.com/corporate/about-us/contacts-locations. © 2023 BlackRock, Inc. All rights reserved.
