amogh-jahagirdar commented on code in PR #12736:
URL: https://github.com/apache/iceberg/pull/12736#discussion_r2048072021
##########
spark/v3.5/spark/src/main/java/org/apache/iceberg/spark/source/SparkWriteBuilder.java:
##########
@@ -192,11 +200,23 @@ private static Schema validateOrMergeWriteSchema(
// if the validation passed, update the table schema
update.commit();
} else {
- writeSchema = SparkSchemaUtil.convert(table.schema(), dsSchema,
caseSensitive);
+ Schema schema = table.schema();
+ if (writeIncludesRowLineage) {
+ schema = TypeUtil.join(schema, rowLineageSchema(table));
+ }
+
+ writeSchema = SparkSchemaUtil.convert(schema, dsSchema, caseSensitive);
TypeUtil.validateWriteSchema(
table.schema(), writeSchema, writeConf.checkNullability(),
writeConf.checkOrdering());
}
return writeSchema;
}
+
+ private static Schema rowLineageSchema(Table table) {
+ return new Schema(
+ MetadataColumns.metadataColumn(table,
MetadataColumns.ROW_ID.name()).asOptional(),
+ MetadataColumns.metadataColumn(table,
MetadataColumns.LAST_UPDATED_SEQUENCE_NUMBER.name())
+ .asOptional());
Review Comment:
I'm doing this in a few places, maybe move this to TableUtil
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