使用waterdrop操作hive的时候遇到一个问题,按照sql的insert、select组合插入应该使用下面的语句: INSERT INTO table t_ads_gsddy_jzfdl_day SELECT a.senid AS senid,a.jlsj AS jlsj,a.v AS v,a.name AS name,'水电' AS stage ,partition_year AS par...
Hive ClassCastException 问题描述 创建表后插入数据 报错 java.lang.ClassCastException: org.apache.hadoop.io.Text cannot be cast to org.apache.hadoop.hive.serde2.io.ParquetHiveRecord at org.apache.hadoop.hive.ql.io.parquet.write.ParquetRecordWriterWrapper.w...
1.distinct 问题: 每个app下只保留一个用户 案例: spark-sql> with test1 as > (select 122 as userid,100024 as apptypeid > union all > select 123 as userid,100024 as apptypeid > union all > select 123 as userid,100024 as apptyp...
一、rows between 与 range between 用法 1. 相关关键词解析 unbounded 无边界
preceding 往前
following 往后
unbounded preceding 往前所有行,即初始行
n preceding 往前n行
unbounded following 往后所有行,即末尾行
n following 往后n行
current row 当前...