Neo4j -- WHERE, ORDER BY, and LIMIT after UNION -


i'm trying query involves union, filters where, order by, , limit after union.

the basic idea find posts starred or posted users user follows. example, posts s , p posts of interest.

match (a:user {id:0})-[:follows]->(b:user),       (b)-[:starred]->(s:post),       (b)-[:posted]->(p:post)

i'd return union of id property of both s , p after filtering, sorting, , limiting results. relevant indexes create make query efficient helpful well.

if u union of s , p, i'd want like:

where u.time > 1431546036148 return u.id order u.time skip 0 limit 20

i don't know how u s , p, , don't know indexes create make query efficient.

you can use multiple relationships types you'll not have union.

i guess time property on post node :

match (user:user {id:0})-[:follows]->(friend:user) match (friend)-[:starred|:posted]->(p:post) p.time > 1431546036148 return p order p.time limit 25

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