Query for edge property returns BAD_TYPE

[cdalexndr]

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Describe the bug (required)

describe edge has

Field	Type	Null	Default	Comment
id	int64	YES	EMPTY	EMPTY

Query for all properties works:

MATCH (s:category)-[e:has]-(t:product) where id(s) == 'category594997595' and id(t) == 'product495966995' RETURN e
[:has "product495966995"->"category594997595" @0 {id: -1963010408}]
^ id is -1963010408

Query for only id, returns BAD_TYPE:

MATCH (s:category)-[e:has]-(t:product) where id(s) == 'category594997595' and id(t) == 'product495966995' RETURN e.has.id

e.has.id
BAD_TYPE

Your Environments (required)

• OS: uname -a docker for windows, nebula-graph 3.2.1
• 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

Return -1963010408, value of id property of edge

Additional context

[jievince]

For edge, you should return e.id, not e.has.id, which is different from vertex.