摘要：
postgres=# CREATE TABLE rtbl ( a int, b int, t text, x float, y float );CREATE TABLEpostgres=# INSERT INTO rtbl (SELECT code AS a, (code * 100 * random())::int% 57 AS b, md5(code::text) || ' i... 阅读全文
posted @ 2012-12-04 10:01 JasmineLiu 阅读(221) 评论(0) 推荐(0) 编辑