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Aggregation pipeline breaks if $replaceRoot stage is present #4722

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jmayday opened this issue Jun 11, 2024 · 2 comments · May be fixed by #4723
Open

Aggregation pipeline breaks if $replaceRoot stage is present #4722

jmayday opened this issue Jun 11, 2024 · 2 comments · May be fixed by #4723
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@jmayday
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jmayday commented Jun 11, 2024

This is similar to already closed #4285.

If I include $replaceRoot stage, aggregation fails with CodecConfigurationException. Below is the (bit anonymized) aggregation itself. Workaround is to use $project instead of $replaceRoot (which is not that convenient).

org.bson.codecs.configuration.CodecConfigurationException: Can't find a codec for CodecCacheKey{clazz=class org.springframework.data.mongodb.core.aggregation.BooleanOperators$And, types=null}.

[
    {
        "$match": {
            "$and": [
                {
                    "fieldA": "some value"
                }
            ]
        }
    },
    {
        "$sort": {
            "updatedAt": -1
        }
    },
    {
        "$group": {
            "_id": "$_some_field_id",
            "latestRecord": {
                "$first": "$$ROOT"
            }
        }
    },
    {
        "$replaceRoot": {
            "newRoot": "$latestRecord"
        }
    },
    {
        "$lookup": {
            "from": "joinedCollectionName",
            "let": {
                "fieldB": "$fieldB",
                "fieldA": "$fieldA",
                "fieldC": "$fieldC"
            },
            "pipeline": [
                {
                    "$match": {
                        "$expr": {
                            "$java": org.springframework.data.mongodb.core.aggregation.BooleanOperators$And@5d77efc8
                        }
                    }
                }
            ],
            "as": "myAlias"
        }
    }
]

Some dependency versions:

[INFO] +- org.springframework.boot:spring-boot-starter-data-mongodb:jar:3.3.0:compile
[INFO] |  +- org.mongodb:mongodb-driver-sync:jar:5.0.1:compile
[INFO] |  |  +- org.mongodb:bson:jar:5.0.1:compile
[INFO] |  |  \- org.mongodb:mongodb-driver-core:jar:5.0.1:compile
[INFO] |  |     \- org.mongodb:bson-record-codec:jar:5.0.1:runtime
[INFO] |  \- org.springframework.data:spring-data-mongodb:jar:4.3.0:compile
[INFO] |     +- org.springframework:spring-tx:jar:6.1.8:compile
[INFO] |     \- org.springframework.data:spring-data-commons:jar:3.3.0:compile
@spring-projects-issues spring-projects-issues added the status: waiting-for-triage An issue we've not yet triaged label Jun 11, 2024
@christophstrobl
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Do you happen to have a complete minimal sample (something that we can unzip or git clone, build, and deploy) that reproduces the problem? Also the java representation of the pipeline as well as execution paths & stack traces would be a good thing to add. Thank you!

@christophstrobl christophstrobl added status: waiting-for-feedback We need additional information before we can continue and removed status: waiting-for-triage An issue we've not yet triaged labels Jun 12, 2024
@pbeltechi
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pbeltechi commented Jun 12, 2024 •
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@christophstrobl please check @banhidizoli's example from here #4285

I manage to reproduce it on 4.2.5 version.

@spring-projects-issues spring-projects-issues added status: feedback-provided Feedback has been provided and removed status: waiting-for-feedback We need additional information before we can continue labels Jun 12, 2024
@christophstrobl christophstrobl linked a pull request Jun 13, 2024 that will close this issue
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Fix conversion of types when mapping Aggregation pipeline. spring-projects/spring-data-mongodb
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@christophstrobl @jmayday @spring-projects-issues @pbeltechi