Arangodb 一个AQL查询中的多个插入：数据修改后访问错误

系统设置

• ArangoDB:v3.4.7
• Java驱动程序：v5.0.0

问题

我试图在ArangoDB中的一个查询中执行多个插入。具体如下：

INSERT { _key: @personId, firstName: @firstName, lastName: @lastName, gender: @gender, birthday: @birthday, birthday_day: @birthday_day, birthday_month: @birthday_month, creationDate: @creationDate, locationIP: @locationIP, browserUsed: @browserUsed, email:
@email, speaks: @speaks } INTO Person
 INSERT { _from: Person/@personId, _to: Place/@placeId } INTO isLocatedIn
 INSERT { _from: Person/@personId, _to: Tag/@tag0Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag1Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag2Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag3Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag4Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag5Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag6Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag7Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag8Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag9Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag10Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag11Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag12Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag13Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag14Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag15Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag16Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag17Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag18Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag19Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag20Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Tag/@tag21Id } INTO hasInterest
 INSERT { _from: Person/@personId, _to: Organisation/@studyOrg0Id, classYear: @classYear0 } INTO studyAt
 INSERT { _from: Person/@personId, _to: Organisation/@workOrg0Id, classYear: @workFrom0 } INTO workAt
 INSERT { _from: Person/@personId, _to: Organisation/@workOrg1Id, classYear: @workFrom1 } INTO workAt

使用以下参数：

Params: {personId=35184372096260, firstName=André, lastName=Atem, gender=female, birthday=501897600000, birthday_day=27, birthday_month=11, creationDate=1347546700674, locationIP=41.205.16.11, browserUsed=Internet Explorer, email=[Andre35184372096260@yahoo.com], speaks=
[en], placeId=1048, tag0Id=285, tag1Id=441, tag2Id=1761, tag3Id=2019, tag4Id=2800, tag5Id=2832, tag6Id=4994, tag7Id=5116, tag8Id=5446, tag9Id=5531, tag10Id=5677, tag11Id=6369, tag12Id=7340, tag13Id=7756, tag14Id=7853, tag15Id=8219, tag16Id=8481, tag17Id=9738, tag18Id=98
68, tag19Id=10410, tag20Id=11121, tag21Id=11211, studyOrg0Id=1980, classYear0=2004, workOrg0Id=205, workFrom0=2006, workOrg1Id=209, workFrom1=2005}

但当我尝试这样做时，我得到以下错误：

Exception in thread "main" com.arangodb.ArangoDBException: Response: 400, Error: 1579 - AQL: access after data-modification by collection 'Person' (while optimizing ast)
        at com.arangodb.internal.util.ResponseUtils.checkError(ResponseUtils.java:53)
        at com.arangodb.internal.velocystream.VstCommunication.checkError(VstCommunication.java:146)
        at com.arangodb.internal.velocystream.VstCommunicationSync.execute(VstCommunicationSync.java:128)
        at com.arangodb.internal.velocystream.VstCommunicationSync.execute(VstCommunicationSync.java:42)
        at com.arangodb.internal.velocystream.VstCommunication.execute(VstCommunication.java:129)
        at com.arangodb.internal.velocystream.VstProtocol.execute(VstProtocol.java:47)
        at com.arangodb.internal.ArangoExecutorSync.execute(ArangoExecutorSync.java:71)
        at com.arangodb.internal.ArangoExecutorSync.execute(ArangoExecutorSync.java:53)
        at com.arangodb.internal.ArangoDatabaseImpl.query(ArangoDatabaseImpl.java:197)

在ArangoDB中，我似乎不能在一个查询中将两次插入到同一个集合中？我是否需要为每个插入执行单独的查询

谢谢你的帮助

解决方案

使用

FOR

结构重新表述AQL查询，如下所示解决了问题：

INSERT { _key: @personId, firstName: @firstName, lastName: @lastName, gender: @gender, birthday: @birthday, birthday_day: @birthday_day, birthday_month: @birthday_month, creationDate: @creationDate, locationIP: @locationIP, browserUsed: @browserUsed, email: @email, speaks: @speaks } INTO Person

LET hasInterestEdges = [
    {_from: "Person/35184372096260", _to: "Tag/285"}, 
    {_from: "Person/35184372096260", _to: "Tag/441"}, 
    {_from: "Person/35184372096260", _to: "Tag/1761"}, 
    {_from: "Person/35184372096260", _to: "Tag/2019"}, 
    {_from: "Person/35184372096260", _to: "Tag/2800"}, 
    {_from: "Person/35184372096260", _to: "Tag/2832"}, 
    {_from: "Person/35184372096260", _to: "Tag/4994"}, 
    {_from: "Person/35184372096260", _to: "Tag/5116"}, 
    {_from: "Person/35184372096260", _to: "Tag/5446"}, 
    {_from: "Person/35184372096260", _to: "Tag/5531"}, 
    {_from: "Person/35184372096260", _to: "Tag/5677"}, 
    {_from: "Person/35184372096260", _to: "Tag/6369"}, 
    {_from: "Person/35184372096260", _to: "Tag/7340"}, 
    {_from: "Person/35184372096260", _to: "Tag/7756"}, 
    {_from: "Person/35184372096260", _to: "Tag/7853"}, 
    {_from: "Person/35184372096260", _to: "Tag/8219"}, 
    {_from: "Person/35184372096260", _to: "Tag/8481"}, 
    {_from: "Person/35184372096260", _to: "Tag/9738"}, 
    {_from: "Person/35184372096260", _to: "Tag/9868"}, 
    {_from: "Person/35184372096260", _to: "Tag/10410"}, 
    {_from: "Person/35184372096260", _to: "Tag/11121"}, 
    {_from: "Person/35184372096260", _to: "Tag/11211"}]

FOR hasInterestEdge IN hasInterestEdges INSERT hasInterestEdge INTO hasInterest

LET studyAtEdges = [
    {_from: "Person/35184372096260", _to: "Organisation/1980", classYear: 2004}]

FOR studyAtEdge IN studyAtEdges INSERT studyAtEdge INTO studyAt

LET workAtEdges = [
    {_from: "Person/35184372096260", _to: "Organisation/205", workFrom: 2006}, 
    {_from: "Person/35184372096260", _to: "Organisation/209", workFrom: 2005}]

FOR workAtEdge IN workAtEdges INSERT workAtEdge INTO workAt

---

使用java驱动程序，您可以使用

集合.insertDocuments

命令并传递要插入的文档数组。见医生

在http接口中，您可以使用

POST /_api/document/{collection}

并通过所述的文档数组传递json（请参见创建文档部分）

最后，直接在AQL中，您通常会在[arrayOfDocs]insert{}into collection中为doc使用

以下是在AQL中插入多条记录的示例，直接在web GUI中运行：

let Params =[ {personId:35184372096260, firstName:'André', lastName:'Atem'}, {personId:35184372096261, firstName:'Robert', lastName:'Smith'} ]

for item in Params
insert item into test5

使用java驱动程序，您可以使用
集合.insertDocuments
命令并传递要插入的文档数组。见医生

在http接口中，您可以使用

POST /_api/document/{collection}

并通过所述的文档数组传递json（请参见创建文档部分）

最后，直接在AQL中，您通常会在[arrayOfDocs]insert{}into collection中为doc使用

以下是在AQL中插入多条记录的示例，直接在web GUI中运行：

let Params =[ {personId:35184372096260, firstName:'André', lastName:'Atem'}, {personId:35184372096261, firstName:'Robert', lastName:'Smith'} ]

for item in Params
insert item into test5

你是说在AQL中，背对背的
INSERT
语句不起作用，但是如果我能设法表达与
FOR
循环相同的东西，它会起作用吗？请您在回答中包括如何表达问题中使用
FOR
的
INSERT
语句集，如您所述？我刚刚添加了一个AQL示例。我使用了你的param的一个缩短版本，但它应该足够好，可以告诉你如何设置它。此外，我还插入了整个对象，但是您可以投影需要插入的任何列。好的，我测试了建议的解决方案，效果良好，谢谢！然而，我觉得很奇怪，FOR构造绕过了“数据修改后访问”错误。在集合被修改后，我们是否仍在访问它们？更多解释一下为什么这样做会有帮助。你是说在AQL中，背对背的
INSERT
语句不起作用，但是如果我能设法表达出与
FOR
循环相同的东西，它会起作用吗？请您在回答中包括如何表达问题中使用
FOR
的
INSERT
语句集，如您所述？我刚刚添加了一个AQL示例。我使用了你的param的一个缩短版本，但它应该足够好，可以告诉你如何设置它。此外，我还插入了整个对象，但是您可以投影需要插入的任何列。好的，我测试了建议的解决方案，效果良好，谢谢！然而，我觉得很奇怪，FOR构造绕过了“数据修改后访问”错误。在集合被修改后，我们是否仍在访问它们？更多解释一下为什么这样做会有帮助。