如何在Postgres获得短日名称,例如"Mon","Tue","Wed"

Question

如何在Postgres中选择短日名称,例如"星期一","星期二","星期三"？

不是全天的名字"星期一","星期二","星期三".

Answer 1

to_char(NOW(), 'Dy')或'dy'或'DY'

参考:https://www.postgresql.org/docs/9.1/static/functions-formatting.html#FUNCTIONS-FORMATTING-DATETIME-TABLE