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https://issues.apache.org/jira/browse/DRILL-8190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17598490#comment-17598490
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Daniel Clark commented on DRILL-8190:
-------------------------------------
This is the error received when store.mongo.bson.record.reader is set to false
warning *UserRemoteException :* SYSTEM ERROR: UnsupportedOperationException:
Map, Array, Union or repeated scalar type should not be used in group by, order
by or in a comparison operator. Drill does not support compare between
MAP:REQUIRED and MAP:REQUIRED.
org.apache.drill.common.exceptions.UserRemoteException: SYSTEM ERROR:
UnsupportedOperationException: Map, Array, Union or repeated scalar type should
not be used in group by, order by or in a comparison operator. Drill does not
support compare between MAP:REQUIRED and MAP:REQUIRED. Fragment: 0:0 Please,
refer to logs for more information. [Error Id:
84c9e858-ffb2-4830-b327-73f41b31fba1 on localhost:31010]
> Mongo query: "Schema change not currently supported for schemas with complex
> types"
> -----------------------------------------------------------------------------------
>
> Key: DRILL-8190
> URL: https://issues.apache.org/jira/browse/DRILL-8190
> Project: Apache Drill
> Issue Type: Bug
> Components: Server
> Affects Versions: 1.20.0
> Environment: RHEL 7: Linux 3.10.0-1160.59.1.el7.x86_64 #1 SMP Wed
> Feb 16 12:17:35 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
> Reporter: Daniel Clark
> Assignee: James Turton
> Priority: Major
> Fix For: Future
>
> Attachments: customGrounds.gz, log_4.txt, profile_4.json
>
>
> I'm attempting to run this mongo query that ran successfully in Drill 1.19
> with the 1.21.0-SNAPSHOT build.
>
> SELECT `Elements_Efforts`.`EffortTypeName` AS `EffortTypeName`,
> `Elements`.`ElementSubTypeName` AS `ElementSubTypeName`,
> `Elements`.`ElementTypeName` AS `ElementTypeName`,
> `Elements`.`PlanID` AS `PlanID`
> FROM `mongo.grounds`.`Elements` `Elements`
> INNER JOIN `mongo.grounds`.`Elements_Efforts` `Elements_Efforts` ON
> (`Elements`.`_id` = `Elements_Efforts`.`_id`)
> WHERE (`Elements`.`PlanID` = '1623263140')
> GROUP BY `Elements_Efforts`.`EffortTypeName`,
> `Elements`.`ElementSubTypeName`,
> `Elements`.`ElementTypeName`,
> `Elements`.`PlanID`
>
> I'm getting this error message: UserRemoteException : SYSTEM ERROR:
> RuntimeException: Schema change not currently supported for schemas with
> complex types. I've attached the log, profile, and a mongodb dump containing
> the relevant datasets.
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