cn panic when join a mv has a order by clause

[ly9chee]

Describe the bug

as the title said

Error message/log

compute-node-0  | thread 'risingwave-streaming-actor' panicked at 'schema check failed on BackfillExecutor: column type mismatched at position 1: expected Some(Int64), found None', src/stream/src/executor/wrapper/schema_check.rs:48:29

To Reproduce

create table t1(
  id bigint primary key,
  i bigint
);

create materialized view mv1 as
select id, i from t1 order by id, i;

insert into t1 values(1, 1);

create table t2(
   id bigint primary key
);

insert into t2 values(1);

-- the following will yield a panic
create materialized view mv2 as
select
  mv1.id as id1,
  t2.id as id2
from t2 inner join mv1 on t2.id = mv1.id;

Expected behavior

No response

How did you deploy RisingWave?

docker compose

The version of RisingWave

PostgreSQL 9.5-RisingWave-1.2.0 (0f94fdf8846a09d16f2856b816cdd9b1805a1f50)

Additional context

No response