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    一个sql生成hive日期维度表

    set hive.execution.engine=tez; with dates as ( select date_add("2010-01-01", a.pos) as d from (select posexplode(split(repeat("o", datediff("2030-12-31", "2010-01-01")), "o"))) a ) insert overwrite table dim.dim_date select     d   , date_format(d, 'yyyyMMdd000000') as to_pt            -- 指定分区格式   , date_format(d, 'yyyyMMdd')       as date_yyyymmdd   , trunc(d,'MM')                    as month_first_day    , last_day(d)                      as month_last_day   , date_format(last_day(d),'yyyyMMdd000000')   as month_last_pt   , date_format(d, 'yyyyMM')  as month_yyyymm   , date_format(d, 'yyyy-MM') as month_yyyy_mm   , month(d) as month   , date_format(d, 'u') as week   , date_format(d, 'E') as week_long      , weekofyear(d) as week_of_year   , year(d) as year   , floor(substr(d,6,2)/3.1)*3+1 as quarter   -- , concat_group('"',date_format(d, 'yyyyMM'),'"') as date_yyyymmdd_list   -- 低版本hive group_concat 不可用 from dates

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