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https://issues.apache.org/jira/browse/IMPALA-11199?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Boglarka Egyed reassigned IMPALA-11199:
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Assignee: Peter Rozsa
> Use UpdatePartitionSpec API to alter Iceberg partition specs
> ------------------------------------------------------------
>
> Key: IMPALA-11199
> URL: https://issues.apache.org/jira/browse/IMPALA-11199
> Project: IMPALA
> Issue Type: Improvement
> Components: Frontend
> Affects Versions: Impala 4.1.0
> Reporter: Tamas Mate
> Assignee: Peter Rozsa
> Priority: Major
> Labels: impala-iceberg
>
> Impala uses the iceberg TableMetadata object dugin
> [alterTableSetPartitionSpec
> |https://github.com/apache/impala/blob/master/fe/src/main/java/org/apache/impala/service/IcebergCatalogOpExecutor.java#L166].
> This class is part of the core package which ideally should not be accessed
> by external applications:
> {code:java}
> BaseTable iceTable = (BaseTable)IcebergUtil.loadTable(feTable);
> TableOperations tableOp = iceTable.operations();
> TableMetadata metadata = tableOp.current();
> Schema schema = metadata.schema();
> PartitionSpec newPartSpec = IcebergUtil.createIcebergPartition(schema,
> partSpec);
> TableMetadata newMetadata = metadata.updatePartitionSpec(newPartSpec);
> Map<String, String> properties = new HashMap<>(newMetadata.properties());
> {code}
> Iceberg has an
> [UpdatePartitionSpec|https://github.com/apache/iceberg/blob/master/api/src/main/java/org/apache/iceberg/UpdatePartitionSpec.java#L32]
> api, which should be used in these situations if possible.
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