Optimization on MATCH LIMIT

[wey-gu]

Is your feature request related to a problem? Please describe.
There is no limit push down for MATCH, for a query like match (v: people) return v limit 5; cannot be done in an accepted performance

Describe the solution you'd like
Support push down of limit in this query pattern.

Describe alternatives you've considered
n/a

Additional context

• https://discuss.nebula-graph.com.cn/t/topic/4050
• https://discuss.nebula-graph.com.cn/t/topic/4347

[wey-gu]

Update:
Not sure if this case(limit in a string matching MATCH condition) could be covered in this optimization attempt, I put it here all together :-)

MATCH (v:vertexCall) WHERE v.CallNumber STARTS WITH "10000106" RETURN v.CallNumber as number | limit 2