[ https://issues.apache.org/jira/browse/ARROW-13561?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ian Cook updated ARROW-13561: ----------------------------- Description: Arrow has an {{iso_week}} compute kernel that follows the [ISO 8601 week date definition|https://en.wikipedia.org/wiki/ISO_week_date#First_week]. Add another kernel (maybe named {{week}}) that lets you specify options for how exactly to count weeks, like MySQL's week function: [https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_week|https://www.google.com/url?q=https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html%23function_week&sa=D&source=editors&ust=1628103672101000&usg=AFQjCNHap0KtiiZ83G_PVRPz5T7z6y-lIQ]. I think we can reuse the existing {{DayOfWeekOptions}} to specify the options, but we should change the description of the {{one_based_numbering}} argument to: {quote}Number from 1 if true and from 0 if false. {quote} removing the word "days" from it, so it can control whether days _or_ weeks are numbered starting from 0 or 1 depending on where it's used. was:Arrow has an {{iso_week}} compute kernel that follows the [ISO 8601 week date definition|https://en.wikipedia.org/wiki/ISO_week_date#First_week]. Add another kernel (maybe named {{week}}) that lets you specify options for how exactly to count weeks, like MySQL's week function: [https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_week|https://www.google.com/url?q=https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html%23function_week&sa=D&source=editors&ust=1628103672101000&usg=AFQjCNHap0KtiiZ83G_PVRPz5T7z6y-lIQ]. I think we can reuse the existing {{DayOfWeekOptions}} to specify the options. > [C++] Implement week kernel that accepts DayOfWeekOptions > --------------------------------------------------------- > > Key: ARROW-13561 > URL: https://issues.apache.org/jira/browse/ARROW-13561 > Project: Apache Arrow > Issue Type: Improvement > Components: C++ > Reporter: Ian Cook > Priority: Major > > Arrow has an {{iso_week}} compute kernel that follows the [ISO 8601 week date > definition|https://en.wikipedia.org/wiki/ISO_week_date#First_week]. Add > another kernel (maybe named {{week}}) that lets you specify options for how > exactly to count weeks, like MySQL's week function: > [https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_week|https://www.google.com/url?q=https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html%23function_week&sa=D&source=editors&ust=1628103672101000&usg=AFQjCNHap0KtiiZ83G_PVRPz5T7z6y-lIQ]. > I think we can reuse the existing {{DayOfWeekOptions}} to specify the > options, but we should change the description of the {{one_based_numbering}} > argument to: > {quote}Number from 1 if true and from 0 if false. > {quote} > removing the word "days" from it, so it can control whether days _or_ weeks > are numbered starting from 0 or 1 depending on where it's used. -- This message was sent by Atlassian Jira (v8.3.4#803005)