Spark 4.0: Row Lineage support #13310
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spark/v4.0/spark/src/main/java/org/apache/iceberg/spark/source/SparkWrite.java
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| if (writeIncludesRowLineage) { | ||
| sparkWriteSchema = sparkWriteSchema.add("_row_id", LongType$.MODULE$); | ||
| sparkWriteSchema = | ||
| sparkWriteSchema.add( | ||
| MetadataColumns.LAST_UPDATED_SEQUENCE_NUMBER.name(), LongType$.MODULE$); | ||
| } | ||
|
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Separate helper method updateSparkWriteSchemaWithLineage would make it clearer
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spark/v4.0/spark/src/main/java/org/apache/iceberg/spark/source/SparkPositionDeltaWrite.java
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This change implements spark 4.0 with Iceberg v3's row lineage feature; this approach uses the new conditional nullification mechanism introduced in 4.0 instead of custom rules that we implemented for 3.5