ClickHouse/tests/queries/0_stateless/02341_global_join_cte.sql

-- { echo }
with rhs as (select * from remote('127.{1,2}', view(select dummy d1, dummy d2 from system.one))) select lhs.d2 from remote('127.{1,2}', view(select dummy d1, dummy d2 from system.one)) lhs global join rhs using (d1) order by rhs.d2 settings allow_experimental_analyzer=0; -- { serverError ALIAS_REQUIRED }
with rhs as (select * from remote('127.{1,2}', view(select dummy d1, dummy d2 from system.one))) select lhs.d2 from remote('127.{1,2}', view(select dummy d1, dummy d2 from system.one)) lhs global join rhs using (d1) order by rhs.d2 settings allow_experimental_analyzer=1; -- It works with analyzer; rhs is an alias itself.
with rhs as (select * from remote('127.{1,2}', view(select dummy d1, dummy d2 from system.one))) select lhs.d2 from remote('127.{1,2}', view(select dummy d1, dummy d2 from system.one)) lhs global join rhs using (d1) order by rhs.d2 settings joined_subquery_requires_alias=0;
with rhs_ as (select * from remote('127.{1,2}', view(select dummy d1, dummy d2 from system.one))) select lhs.d2 from remote('127.{1,2}', view(select dummy d1, dummy d2 from system.one)) lhs global join rhs_ rhs using (d1) order by rhs.d2 settings joined_subquery_requires_alias=0;