(paimon) branch master updated: [core] Add comments in DeletionVectorIndexFileWriter.emptyIndexFile

[lzljs3620320]

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The following commit(s) were added to refs/heads/master by this push:
     new 2da50988d [core] Add comments in 
DeletionVectorIndexFileWriter.emptyIndexFile
2da50988d is described below

commit 2da50988d47e4527b4de86222ba21ec653fa6b43
Author: Jingsong <jingsongl...@gmail.com>
AuthorDate: Thu May 30 16:31:06 2024 +0800

    [core] Add comments in DeletionVectorIndexFileWriter.emptyIndexFile
---
 .../paimon/deletionvectors/DeletionVectorIndexFileWriter.java      | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git 
a/paimon-core/src/main/java/org/apache/paimon/deletionvectors/DeletionVectorIndexFileWriter.java
 
b/paimon-core/src/main/java/org/apache/paimon/deletionvectors/DeletionVectorIndexFileWriter.java
index f7fa7eb08..4dddd6ba1 100644
--- 
a/paimon-core/src/main/java/org/apache/paimon/deletionvectors/DeletionVectorIndexFileWriter.java
+++ 
b/paimon-core/src/main/java/org/apache/paimon/deletionvectors/DeletionVectorIndexFileWriter.java
@@ -84,6 +84,13 @@ public class DeletionVectorIndexFileWriter {
         return writer.writtenIndexFile();
     }
 
+    /**
+     * The deletion file of the bucketed table is updated according to the 
bucket. If a compaction
+     * occurs and there is no longer a deletion file, an empty deletion file 
needs to be generated
+     * to overwrite the old file.
+     *
+     * <p>TODO: We can consider sending a message to delete the deletion file 
in the future.
+     */
     private List<IndexFileMeta> emptyIndexFile() throws IOException {
         try (SingleIndexFileWriter writer = new SingleIndexFileWriter()) {
             return Collections.singletonList(writer.writtenIndexFile());