+1 non-binding On Wed, Jun 30, 2021, 2:53 AM Weston Pace <weston.p...@gmail.com> wrote:
> This vote is a result of previous discussion[1][2]. This vote is also > a prerequisite for the PR in [5]. > > --- > Some date & time libraries have three temporal concepts. For the sake > of this document we will call them LocalDateTime, ZonedDateTime, and > Instant. An Instant is a timestamp that has no meaningful reference > time zone (e.g. events that did not occur on Earth or columns of > timestamps spanning more than one time zone). For more extensive > definitions and a discussion of their semantics and uses see [3]. > Currently Arrow describes how to encode two of these three concepts > into a Timestamp column and there is no guideline on how to store an > Instant. > > > This proposal states that Arrow should recommend that instants be encoded > into timestamp columns by setting the timezone string to "UTC". > --- > > For sample arguments (currently grouped as "for changing schema.fbs" > and "against changing schema.fbs") see [4]. For a detailed definition > of the terms LocalDateTime, ZonedDateTime, and Instant and a > discussion of their semantics see [3]. For a straw poll on > possible ways to handle instants see [2]. > > This vote will be open for at least 72 hours. > > [ ] +1 Update schema.fbs to state the above convention > [ ] +0 > [ ] -1 Do not make any change > > [1] > https://lists.apache.org/thread.html/r8216e5de3efd2935e3907ad9bd20ce07e430952f84de69b36337e5eb%40%3Cdev.arrow.apache.org%3E > [2] > https://lists.apache.org/thread.html/r1bdffc76537ae9c12c37396880087fee9c0eec9000bf6ed4c9850c44%40%3Cdev.arrow.apache.org%3E > [3] > https://docs.google.com/document/d/1QDwX4ypfNvESc2ywcT1ygaf2Y1R8SmkpifMV7gpJdBI/edit?usp=sharing > [4] > https://docs.google.com/document/d/1xEKRhs-GUSMwjMhgmQdnCNMXwZrA10226AcXRoP8g9E/edit?usp=sharing > [5] https://github.com/apache/arrow/pull/10629 >
