Inconsistent behavior of semantically equivalent patterns

[foesa-yang]

Please check the FAQ documentation before raising an issue

Describe the bug (required)

If I execute the following statement, an error will appear.

$ MATCH (a)-[e]->() RETUN rank(e) LIMIT 10
$ MATCH (a)-[e]->() RETUN e LIMIT 10

The screenshot on the Studio is as follows：

And actually I can execute the following statement:

$ MATCH ()-[e]->() RETURN e LIMIT 10

The screenshot on the Studio is as follows：

Your Environments (required)

• OS: uname -a
• Compiler: g++ --version or clang++ --version
• CPU: lscpu
• Commit id (e.g. a3ffc7d8)

How To Reproduce(required)

Steps to reproduce the behavior:

1. Step 1
2. Step 2
3. Step 3

Expected behavior

Additional context

[Shylock-Hg]

match ()-[e]->() return e limit 10

[foesa-yang]

I just want to write v here, so can't the execution be successful?

[Shylock-Hg]

I just want to write v here, so can't the execution be successful?

Yes, it's expected according to our design, maybe we could optimize it later.

[whitewum]

That's ... strange.