postgresql - 错误和与交叉表不兼容 (Postgresql-10)

Question

我正在尝试在 Postgres 10 中使用“交叉表”功能，它会引发以下错误，我不明白为什么：

错误：返回和 sql 元组描述不兼容 SQL 状态：42601

select * from crosstab
($$select xx, xxy, sum(t) as lala from po.zBORRARvi_intermedia
                           group by xx, xxy order by 1,2$$) as
ct("xx" varchar(255), "xy1" double precision, "xy2" double precision, "xy3" double precision, 
"xy4" double precision,"xy5" double precision, "xy6" double precision, "xy7" double precision,
   "xy8" double precision);

Answer 1

必须根据预期列数正确定义交叉表的返回类型。

请阅读此链接