Support multiple index selection in start tag/edge type

[wey-gu]

I understand that it's not possible to scan different indexes involving (multiple steps walk) in an efficient way but logically in a slow way, it's still possible to be parsed and planned, right?

MATCH p=(v)-[e:follow|serve*2]->(v2) WHERE ALL(e_ in e WHERE e_.degree > 0) RETURN DISTINCT v2;
[ERROR (-1009)]: SemanticError: Can't solve the start vids from the sentence: MATCH p = (v)-[e:follow|serve*2]->(v2) WHERE all(__VAR_0 IN e WHERE ($__VAR_0.degree>0)) RETURN DISTINCT v2

MATCH p=(v:player:team)-[e:follow|serve*2]->(v2) WHERE ALL(e_ in e WHERE e_.degree > 0) RETURN DISTINCT v2;
[ERROR (-1009)]: SemanticError: Can't solve the start vids from the sentence: MATCH p = (v:player:team)-[e:follow|serve*2]->(v2) WHERE all(__VAR_0 IN e WHERE ($__VAR_0.degree>0)) RETURN DISTINCT v2

The workaround/mitigation I could think of now(the edge conditions are not the same as the above though):

(LOOKUP ON serve WHERE serve.start_year > 1000 UNION LOOKUP ON follow WHERE follow.degree > 20) \
| GO 2 steps FROM $-.SrcVID OVER serve, follow WHERE serve.start_year > 1000 or follow.degree > 20

context: https://discuss.nebula-graph.com.cn/t/topic/6872/18