Lynx need to check cypher schema

[LianxinGao]

If a query like this:
"""
create (m)<-[r1: HAS_CREATOR]-(p1)
create (m)<-[r1: HAS_CREATOR]-(p2)
"""

we should throw a exception: "Variable r1 already declared"

but now, we can create relationship correctly, it seems the latter r1 will cover r1 before. But if the context want use the earlier r1, the logic will not be correct.

[chunyang-wen]

I think it is ok. Because a variable has its own scope. There are cases where users are making mistakes to reuse variable name, but there are cases where reusing variable are ok.

[LianxinGao]

I think it is ok. Because a variable has its own scope. There are cases where users are making mistakes to reuse variable name, but there are cases where reusing variable are ok.

In neo4j，it will throw exception.

So it depends on our choice~

[merlintang]

any conclusion here, my option is that we can choose the neo4j.