Neo4j 第一次查询 returns 多条记录

Question

我将 Neo4j 客户端与 ASP.NET MVC 一起使用，我有这个查询显示运行ge 日期内的用户事件，当我运行这个查询第一次它 returns 事件正确但是当我调用我的 ajax 到运行事件再次查询给我的记录是第一次的两倍。我已经逐行跟踪查询，但一切似乎都运行良好，我不得不说我是第一次使用 Union 可以查看我的查询并告诉我是否有问题吗？

var q = new CypherFluentQuery(client) as ICypherFluentQuery;
q = q.Match("(y:Year)--(m:Month)--(d:Day)--(h:Hour)--(sr:ServiceRequest)-[" + Relations.EXPERT_ASSIGN_TO_SQ.ToString() + "]-(u:User)")
     .Where("y.value >= {param}").WithParam("param", dt1.Year)
     .AndWhere("m.value >= {param2}").WithParam("param2", dt1.Month)
     .AndWhere("d.value >= {param4}").WithParam("param4", dt1.Day)
     .AndWhere("u.Id = {param10}").WithParam("param10", Id)
     .With("y,m,d,h,sr,u")
     .Match("(sr)-[:" + Relations.SC_HAS_SQ.ToString() + "]-(c2:ServiceCategory)-[:" + Relations.SC_IS_SC_CHILD.ToString() + "*]-(c3:ServiceCategory)")
     .ReturnDistinct((y, m, d, h, sr, c2, c3) => new
     {
         Year = y.As<RootTree>().value,
         Month = m.As<RootTree>().value,
         Day = d.As<RootTree>().value,
         Hour = h.As<RootTree>().value,
         serviceRequest = sr.As<ServiceRequest>(),
         ServiceCategory = c2.As<OnDemandService>(),
         ServiceParent = c3.As<OnDemandService>()

     })
     .UnionAll()
     .Match("(yy:Year)--(mm:Month)--(dd:Day)--(hh:Hour)--(sr2:ServiceRequest)-[" + Relations.EXPERT_ASSIGN_TO_SQ.ToString() + "]-(u)")
     .Where("yy.value <= {param7}").WithParam("param7", dt2.Year)
     .AndWhere("mm.value >= {param8}").WithParam("param8", dt2.Month)
     .AndWhere("dd.value >= {param9}").WithParam("param9", dt2.Day)
     .With("yy,mm,dd,hh,sr2,u")
     .Match("(sr2)-[:" + Relations.SC_HAS_SQ.ToString() + "]-(c2:ServiceCategory)-[:" + Relations.SC_IS_SC_CHILD.ToString() + "*]-(c3:ServiceCategory)");

var query = q.ReturnDistinct((yy, mm, dd, hh, sr2, c2, c3) => new
{
    Year = yy.As<RootTree>().value,
    Month = mm.As<RootTree>().value,
    Day = dd.As<RootTree>().value,
    Hour = hh.As<RootTree>().value,
    serviceRequest = sr2.As<ServiceRequest>(),
    ServiceCategory = c2.As<OnDemandService>(),
    ServiceParent = c3.As<OnDemandService>()
}).Results.ToList();

跟踪查询：

MATCH (y:Year)--(m:Month)--(d:Day)--(h:Hour)--(sr:ServiceRequest)-[EXPERT_ASSIGN_TO_SQ]-(u:User)
WHERE y.value >= 2017
AND m.value >= 5
AND d.value >= 16
AND u.Id = "c0dc7cbe-5626-4012-a5ea-72c1cfce2461"
WITH y,m,d,h,sr,u
MATCH (sr)-[:SC_HAS_SQ]-(c2:ServiceCategory)-[:SC_IS_SC_CHILD*]-(c3:ServiceCategory)
RETURN distinct y.value AS Year, m.value AS Month, d.value AS Day, h.value AS Hour, sr AS serviceRequest, c2 AS ServiceCategory, c3 AS ServiceParent
UNION ALL
MATCH (yy:Year)--(mm:Month)--(dd:Day)--(hh:Hour)--(sr2:ServiceRequest)-[EXPERT_ASSIGN_TO_SQ]-(u)
WHERE yy.value <= 2017
AND mm.value >= 5
AND dd.value >= 9
WITH yy,mm,dd,hh,sr2,u
MATCH (sr2)-[:SC_HAS_SQ]-(c2:ServiceCategory)-[:SC_IS_SC_CHILD*]-(c3:ServiceCategory)
RETURN distinct yy.value AS Year, mm.value AS Month, dd.value AS Day, hh.value AS Hour, sr2 AS serviceRequest, c2 AS ServiceCategory, c3 AS ServiceParent

更新

我已经运行对 neo4j 本身的查询多次 returns 正确，只有在我的应用程序中使用 neo4jClient

查询运行s 时才会发生这种情况

Answer 1

实际上很简单，因为我使用了 union all 我将其更改为 union 并且它起作用了。

Neo4j 第一次查询 returns 多条记录

Neo4j Query returns multiple records after first time

neo4j

cypher

neo4jclient