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…index files in the same partition and bucket

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Linked issue: close #xxx

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…index files in the same partition and bucket
public Map<String, DeletionVector> readAllDeletionVectors(IndexFileMeta fileMeta) {
LinkedHashMap<String, Pair<Integer, Integer>> deletionVectorRanges =
fileMeta.deletionVectorsRanges();
if (deletionVectorRanges == null || deletionVectorRanges.isEmpty()) {
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Should this file be deleted? Why should handle here?

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yep, this IndexFileMeta must be Deletion_Vector Index, and ranges is not empty. Can remove this part.

}
}

/** We combine the previous and new index files by {@link IndexManifestEntry#identifier}. */
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Just move IndexManifestEntry#identifier to here? Actually it is not identifier now. It is only for non-UnawareBucket table.

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this method can remove here.

List<IndexManifestEntry> prevIndexFiles, List<IndexManifestEntry> newIndexFiles) {
Map<IndexManifestEntry.Identifier, IndexManifestEntry> indexEntries =
prevIndexFiles.stream()
.filter(entry -> entry.kind() == FileKind.ADD)
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prevIndexFiles should has not delete files. here just checkArguement?
(maybe you can assert outside)

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ok.

List<IndexManifestEntry> prevIndexFiles, List<IndexManifestEntry> newIndexFiles) {
Map<String, IndexManifestEntry> indexEntries = new LinkedHashMap<>();
for (IndexManifestEntry entry : prevIndexFiles) {
if (entry.kind() == FileKind.ADD) {
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prevIndexFiles should has not delete files. here just checkArguement?
(maybe you can assert outside)

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yes. all the prevIndexFiles should be FileKind.ADD.

Map<String, IndexManifestEntry> indexEntries = new LinkedHashMap<>();
for (IndexManifestEntry entry : prevIndexFiles) {
if (entry.kind() == FileKind.ADD) {
indexEntries.put(entry.indexFile().fileName(), entry);
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Why not using deletionVectorsRanges?

I think fileName is wrong key.

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It can be used in both Hash and Deletion_Vector index files.

@JingsongLi
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+1

@JingsongLi JingsongLi merged commit e8acd22 into apache:master May 22, 2024
sunxiaojian pushed a commit to sunxiaojian/paimon that referenced this pull request May 28, 2024
joyCurry30 pushed a commit to joyCurry30/paimon that referenced this pull request May 30, 2024
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2 participants