[iceberg] Support custom table properties passthrough to Iceberg REST catalog - #9268
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JingsongLi merged 1 commit intoAug 20, 2026
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… catalog Adds an explicit opt-in prefix, metadata.iceberg.table-properties.<key>, mirroring the existing metadata.iceberg.rest.* pattern. Custom properties are merged into the Iceberg table's properties on create, recreate (on metadata-base mismatch), and steady-state update paths, all of which route through IcebergRestMetadataCommitter#updateProperties(). Iceberg's reserved property keys are filtered out to avoid crashing the commit. ADPS-1261
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Adds an explicit opt-in prefix, metadata.iceberg.table-properties., mirroring the existing metadata.iceberg.rest.* pattern. Custom properties are merged into the Iceberg table's properties on create, recreate (on metadata-base mismatch), and steady-state update paths, all of which route through IcebergRestMetadataCommitter#updateProperties(). Iceberg's reserved property keys are filtered out to avoid crashing the commit.
ADPS-1261
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Tests