这个人很懒,暂无签名信息
#include #define uchar unsigned char #define uint unsigned int uchar flag,i; uchar rec[3]={0}; void delay() { int i,j; for(i=0;i
如何使用分通表 1.创建带桶的table: create table teacher(name string) clustered by (name) into 3 buckets row format delimited fields terminated by ' '; 2.开启分桶机制: set hive.enforce.bucketing = true; 3.往表中插入数据: ...