PostgreSQL对数组的遍历
- WBOYOriginal
- 2016-06-07 16:19:201398browse
create table test_array(id serial primary key, str1 int[][][]); 插入两条测试数据。 insert into test_array values (1,array[[[1,2],[3,4],[5,6]],[[20,30],[40,50],[70,100]]]); insert into test_array values (2,array[[[100,200],[300,400],[500,60
create table test_array(id serial primary key, str1 int[][][]);
插入两条测试数据。
insert into test_array values (1,array[[[1,2],[3,4],[5,6]],[[20,30],[40,50],[70,100]]]);
insert into test_array values (2,array[[[100,200],[300,400],[500,600]],[[2000,3000],[4000,5000],[7000,10000]]]);
为了能直观的看到结果集，我们得把数组的值换成普通的类型拿出来， 有以下几种方法。
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