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Spark: Add _row_id and _last_updated_sequence_number readers #12836

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Merged
merged 11 commits into from
Apr 21, 2025
Merged

Spark: Add _row_id and _last_updated_sequence_number readers #12836

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3064389
Core: Always project manifest first_row_id.
rdblue Apr 18, 2025
c9a4537
Spark 3.5: Implement _row_id reader.
rdblue Apr 17, 2025
48bee89
Spark: Implement last updated seq reader.
rdblue Apr 18, 2025
492259d
Remove unnecessary DL logic for constants.
rdblue Apr 18, 2025
4ae7dbd
Reduce complexity of struct method in read builders.
rdblue Apr 18, 2025
e4bda01
Fix revapi.
rdblue Apr 18, 2025
42aaf26
Fix Flink tests.
rdblue Apr 18, 2025
4b5e013
Use position reader rather than duplicating.
rdblue Apr 18, 2025
47f9ee7
Fix revapi.
rdblue Apr 18, 2025
fc02040
Fix position reader use.
rdblue Apr 18, 2025
a18b51f
Spark: Add basic row lineage test.
rdblue Apr 18, 2025
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Core: Always project manifest first_row_id.
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@rdblue
rdblue committed Apr 18, 2025
commit 306438985713ac15170935b64f19ba01f3ab7196
3 changes: 3 additions & 0 deletions core/src/main/java/org/apache/iceberg/ManifestReader.java
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Expand Up @@ -278,6 +278,9 @@ private CloseableIterable<ManifestEntry<F>> open(Schema projection) {
if (projection.findField(DataFile.RECORD_COUNT.fieldId()) == null) {
fields.add(DataFile.RECORD_COUNT);
}
if (projection.findField(DataFile.FIRST_ROW_ID.fieldId()) == null) {
fields.add(DataFile.FIRST_ROW_ID);
}
fields.add(MetadataColumns.ROW_POSITION);

CloseableIterable<ManifestEntry<F>> reader =
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3 changes: 3 additions & 0 deletions core/src/test/java/org/apache/iceberg/TestRowLineageAssignment.java
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Expand Up @@ -685,6 +685,9 @@ private static void checkDataFileAssignment(
try (ManifestReader<DataFile> reader =
ManifestFiles.read(manifest, table.io(), table.specs())) {

// test that the first_row_id column is always scanned, even if not requested
reader.select(BaseScan.SCAN_COLUMNS);

for (DataFile file : reader) {
assertThat(file.content()).isEqualTo(FileContent.DATA);
if (index < firstRowIds.length) {
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