postgresql psql - 行循环的循环变量必须是记录或行变量或标量变量列表
声明:本页面是StackOverFlow热门问题的中英对照翻译,遵循CC BY-SA 4.0协议,如果您需要使用它,必须同样遵循CC BY-SA许可,注明原文地址和作者信息,同时你必须将它归于原作者(不是我):StackOverFlow
原文地址: http://stackoverflow.com/questions/15949337/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
提示:将鼠标放在中文语句上可以显示对应的英文。显示中英文
时间:2020-09-11 00:08:28 来源:igfitidea点击:
psql - loop variable of loop over rows must be a record or row variable or list of scalar variables
提问by Richard Knop
Here is my simple anonymous code block:
这是我的简单匿名代码块:
do $$
declare foo varchar(50) := '';
begin
for a in
select a from (values('foo'), ('bar'), ('fooBar')) s(a)
loop
foo := a;
print foo;
end loop;
end;
$$;
When I run it:
当我运行它时:
psql -f test.sql
I get this error:
我收到此错误:
psql:test.sql:11: ERROR: loop variable of loop over rows must be a record or row variable or list of scalar variables
LINE 4: for a in
^
回答by Richard Knop
Solved it myself, meh:
自己解决了,嗯:
do $$
declare
arow record;
foo varchar(50);
begin
for arow in
select a from (values('foo'), ('bar'), ('fooBar')) s(a)
loop
foo := arow.a;
RAISE NOTICE 'Calling cs_create_job(%)', foo;
end loop;
end;
$$;