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https://issues.apache.org/jira/browse/METAMODEL-211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15025580#comment-15025580
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Tomasz Guzialek commented on METAMODEL-211:
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A branch with a failing unit test reproducing the issue:
https://github.com/tomaszguzialek/metamodel/tree/METAMODEL-211
> Primary key query in MongoDB does not find the record
> -----------------------------------------------------
>
> Key: METAMODEL-211
> URL: https://issues.apache.org/jira/browse/METAMODEL-211
> Project: Apache MetaModel
> Issue Type: Bug
> Affects Versions: 4.4.1
> Reporter: Tomasz Guzialek
>
> Primary key query in MongoDbDataContext does not return the record despite it
> being there. Example query:
> {code:java}
> DataSet ds = dc.query()
> .from("users")
> .selectAll()
> .where("_id").eq("56334c6fb38cfec169db2ccb")
> .execute();
> {code}
> My suspition is that in the query we have the _id in a form of a String while
> the _id field in Mongo is actually a new ObjectId("56334c6fb38cfec169db2ccb")
> and therefore it does not match.
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