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Posted to dev@carbondata.apache.org by haomarch <ma...@126.com> on 2020/05/12 08:52:23 UTC
[Disscussion] Support GloabalSort in the CDC Flow
If there is GloabalSort table in the CDC Flow. The following exception will
be throwed:
Exception in thread "main" java.lang.RuntimeException: column: id specified
in sort columns does not exist in schema
at
org.apache.carbondata.sdk.file.CarbonWriterBuilder.buildTableSchema(CarbonWriterBuilder.java:828)
at
org.apache.carbondata.sdk.file.CarbonWriterBuilder.buildCarbonTable(CarbonWriterBuilder.java:794)
at
org.apache.carbondata.sdk.file.CarbonWriterBuilder.buildLoadModel(CarbonWriterBuilder.java:720)
at
org.apache.spark.sql.carbondata.execution.datasources.CarbonSparkDataSourceUtil$.prepareLoadModel(CarbonSparkDataSourceUtil.scala:281)
at
org.apache.spark.sql.carbondata.execution.datasources.SparkCarbonFileFormat.prepareWrite(SparkCarbonFileFormat.scala:141)
at
org.apache.spark.sql.execution.command.mutation.merge.CarbonMergeDataSetCommand.processIUD(CarbonMergeDataSetCommand.scala:269)
at
org.apache.spark.sql.execution.command.mutation.merge.CarbonMergeDataSetCommand.processData(CarbonMergeDataSetCommand.scala:152)
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Re: [Disscussion] Support GloabalSort in the CDC Flow
Posted by haomarch <ma...@126.com>.
Shall we
use NO_SORT to write delta files?
while using Gloabal to write base files?
It will improve the update performance a lot.
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Re: [Disscussion] Support GloabalSort in the CDC Flow
Posted by David CaiQiang <da...@gmail.com>.
In my opinion, this is an issue if it can't work.
Better to change the topic title to use ‘question'/'issue' instead of
'discussion'.
-----
Best Regards
David Cai
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