<reponame>opengauss-mirror/Yat<filename>openGaussBase/testcase/KEYWORDS/overriding/Opengauss_Function_Keyword_Overriding_Case0021.sql
-- @testpoint: opengauss关键字overriding(非保留)，作为函数名,部分测试点合理报错

--关键字不带引号-成功
drop function if exists overriding;
create function overriding(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带双引号-成功
drop function if exists "overriding";
create function "overriding"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带单引号-合理报错
drop function if exists 'overriding';
create function 'overriding'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带反引号-合理报错
drop function if exists `overriding`;
create function `overriding`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--清理环境
drop function if exists overriding(integer);
drop function if exists "overriding"(integer);