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https://issues.apache.org/jira/browse/BEAM-12674?focusedWorklogId=730939&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-730939
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ASF GitHub Bot logged work on BEAM-12674:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 22/Feb/22 14:08
Start Date: 22/Feb/22 14:08
Worklog Time Spent: 10m
Work Description: yeandy opened a new pull request #16916:
URL: https://github.com/apache/beam/pull/16916
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Issue Time Tracking
-------------------
Worklog Id: (was: 730939)
Remaining Estimate: 0h
Time Spent: 10m
> SqlTransform IllegalArgumentException: key already present: SchemaCoder
> -----------------------------------------------------------------------
>
> Key: BEAM-12674
> URL: https://issues.apache.org/jira/browse/BEAM-12674
> Project: Beam
> Issue Type: Improvement
> Components: cross-language, dsl-sql, sdk-py-core
> Reporter: Ning
> Assignee: Andy Ye
> Priority: P3
> Time Spent: 10m
> Remaining Estimate: 0h
>
> When defining a SqlTransform joining two PCollections with the same Row
> schema, the expansion service throws below exception:
> {code:java}
> RuntimeError: java.lang.IllegalArgumentException: key already present:
> SchemaCoder<Schema: Fields:
> Field{name=number, description=, type=INT64 NOT NULL, options={{}}}
> Encoding positions:
> {number=0}
> Options:{{}}UUID: 7380513f-09ca-4209-a770-50bcfb82c3e4 UUID:
> 7380513f-09ca-4209-a770-50bcfb82c3e4 delegateCoder:
> org.apache.beam.sdk.coders.Coder$ByteBuddy$6yeAkNko@2dd884d
> at
> org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.HashBiMap.putInverse(HashBiMap.java:315)
> at
> org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.HashBiMap.access$800(HashBiMap.java:59)
> at
> org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.HashBiMap$Inverse.put(HashBiMap.java:590)
> at java.util.AbstractMap.putAll(AbstractMap.java:281)
> at
> org.apache.beam.runners.core.construction.SdkComponents.create(SdkComponents.java:99)
> at
> org.apache.beam.runners.core.construction.RehydratedComponents.getSdkComponents(RehydratedComponents.java:184)
> at
> org.apache.beam.sdk.expansion.service.ExpansionService.expand(ExpansionService.java:479)
> at
> org.apache.beam.sdk.expansion.service.ExpansionService.expand(ExpansionService.java:546)
> at
> org.apache.beam.model.expansion.v1.ExpansionServiceGrpc$MethodHandlers.invoke(ExpansionServiceGrpc.java:219)
> at
> org.apache.beam.vendor.grpc.v1p36p0.io.grpc.stub.ServerCalls$UnaryServerCallHandler$UnaryServerCallListener.onHalfClose(ServerCalls.java:182)
> at
> org.apache.beam.vendor.grpc.v1p36p0.io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.halfClosed(ServerCallImpl.java:331)
> at
> org.apache.beam.vendor.grpc.v1p36p0.io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1HalfClosed.runInContext(ServerImpl.java:797)
> at
> org.apache.beam.vendor.grpc.v1p36p0.io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
> at
> org.apache.beam.vendor.grpc.v1p36p0.io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {code}
> The code to produce the error:
> {code:python}
> p = beam.Pipeline()
> numbers = (p | beam.Create(range(10))
> | beam.Map(lambda x: beam.Row(number=x)))
> numbers2 = (p | beam.Create(range(5,15))
> | beam.Map(lambda x: beam.Row(number=x)))
> common_numbers = {'numbers': numbers, 'numbers2': numbers2} |
> beam.transforms.sql.SqlTransform("""
> SELECT * FROM numbers JOIN numbers2 ON numbers.number =
> numbers2.number
> """)
> {code}
> However, if we define the Row schema of `numbers2` to a different schema such
> as `beam.Row(number2=x)`. Then make the join `ON numbers.number =
> numbers2.number2`. The transform can be successfully applied. The pipeline
> can also be executed successfully later.
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