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https://issues.apache.org/jira/browse/HUDI-9683?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Vexler updated HUDI-9683:
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Status: In Progress (was: Open)
> Fix spark rename columns for HoodieInternalRowUtils.genUnsafeRowWriter
> ----------------------------------------------------------------------
>
> Key: HUDI-9683
> URL: https://issues.apache.org/jira/browse/HUDI-9683
> Project: Apache Hudi
> Issue Type: Bug
> Components: spark
> Reporter: Jonathan Vexler
> Assignee: Jonathan Vexler
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.1.0
>
>
> {code:java}
> val (fieldWriter, prevFieldPos): (RowFieldUpdater, Int) =
> prevStructType.getFieldIndex(newField.name) match {
> case Some(prevFieldPos) =>
> val prevField = prevStructType(prevFieldPos)
> (newWriterRenaming(prevField.dataType, newField.dataType,
> renamedColumnsMap, fieldNamesStack), prevFieldPos)
> case None =>
> val newFieldQualifiedName = createFullName(fieldNamesStack)
> val prevFieldName: String = lookupRenamedField(newFieldQualifiedName,
> renamedColumnsMap)
> // Handle rename
> prevStructType.getFieldIndex(prevFieldName) match {
> case Some(prevFieldPos) =>
> val prevField = prevStructType.fields(prevFieldPos)
> (newWriterRenaming(prevField.dataType, newField.dataType,
> renamedColumnsMap, fieldNamesStack), prevFieldPos)
> case None =>
> val updater: RowFieldUpdater = (fieldUpdater, ordinal, _) =>
> fieldUpdater.setNullAt(ordinal)
> (updater, -1)
> }
> } {code}
> We only look up the rename columns if the column is not found. If a new
> column has been renamed to the name of an old column then we will not respect
> the rename
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