neo4j用collect 代替union 并实行分页

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MATCH pa=(j:User)-[r:PostLikeRel|:ReplyRel|:RetweetRel]->(m:User{guid:"f092a1dc6c23b26b020bda24b9e8c923"}) where (j.acc is not null and j.acc <> '' and j<>m) with collect({acc:j.acc, guid:j.guid, pcnt:coalesce(r.pcnt,0), lcnt:coalesce(r.lcnt,0), type:type(r)} ) as rows1   OPTIONAL MATCH po=(j:User)<-[r:PostLikeRel|:ReplyRel|:RetweetRel]-(m:User{guid:"f092a1dc6c23b26b020bda24b9e8c923"}) where (j.acc is not null and j.acc <> '' and j<>m) with rows1+ collect({acc:j.acc, guid:j.guid, pcnt:coalesce(r.pcnt,0), lcnt:coalesce(r.lcnt,0), type:type(r)+"_"}) as allrows   unwind allrows as row with row.acc as acc, row.guid as guid, row.pcnt+row.lcnt as pcnt, row.type as type return acc,guid, pcnt,type order by pcnt desc skip 0 limit 20