为什么从 current_date 中提取周数给出了错误的周数
Why is extract week from current_date giving wrong week number
select extract(week from current_date) 给出 16，但当前 ISO 周为 17。
这是一个错误还是我做错了什么？上周它运行良好。
您可能正在寻找：
extract(isoweek from current_date)
WEEK: Returns the week number of the date in the range [0, 53]. Weeks begin with Sunday, and dates prior to the first Sunday of the year are in week 0.
ISOWEEK: Returns the ISO 8601 week number of the date_expression. ISOWEEKs begin on Monday. Return values are in the range [1, 53]. The first ISOWEEK of each ISO year begins on the Monday before the first Thursday of the Gregorian calendar year.
select extract(week from current_date) 给出 16，但当前 ISO 周为 17。
这是一个错误还是我做错了什么？上周它运行良好。
您可能正在寻找：
extract(isoweek from current_date)
WEEK: Returns the week number of the date in the range[0, 53]. Weeks begin with Sunday, and dates prior to the first Sunday of the year are in week 0.
ISOWEEK: Returns the ISO 8601 week number of the date_expression.ISOWEEKs begin on Monday. Return values are in the range[1, 53]. The firstISOWEEKof each ISO year begins on the Monday before the first Thursday of the Gregorian calendar year.