[用户在上发布的问题]create table test(id bigserial not null, PRIMARY KEY(id HASH))colocated = false);Query 1 ERROR: ERROR: syntax error at or near “WITH” LINE 3: PRIMARY KEY(id HASH
据我所知,Rracle有一个ora_hash函数,可以将数据划分为桶。ora_hash函数是确定性的吗?SELECT * FROM sales WHERE ORA_HASH(cust_id, 9) in (0,1);SELECT * FROM sales WHERE ORA_HASH(cust_id, 9) in (1,2);
在上面的示例中,ora_<e
它是否降低了查询所有这些拆分的分区表的查询速度?其他注释: SQL 2016系统每年将使用大约50 GB的SSD硬盘空间。散列分区示例:http://www.madeiradata.com/how-to-solve-the-tail-insert-problem-2/AS RANGE LEFT FOR VALUES (0,1,2,3,4,5,6,7,8);
CREATE PARTITIO