ajantha-bhat commented on code in PR #4674:
URL: https://github.com/apache/iceberg/pull/4674#discussion_r862375051
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spark/v3.2/spark/src/main/java/org/apache/iceberg/spark/actions/BaseDeleteReachableFilesSparkAction.java:
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@@ -125,8 +126,9 @@ private Result doExecute() {
private Dataset<Row> buildReachableFileDF(TableMetadata metadata) {
Table staticTable = newStaticTable(metadata, io);
- return withFileType(buildValidContentFileDF(staticTable), CONTENT_FILE)
- .union(withFileType(buildManifestFileDF(staticTable), MANIFEST))
+ Dataset<Row> allManifests = loadMetadataTable(staticTable, ALL_MANIFESTS);
+ return withFileType(buildValidContentFileDF(staticTable, allManifests),
CONTENT_FILE)
+ .union(withFileType(buildManifestFileDF(allManifests), MANIFEST))
Review Comment:
> Or Does changing to an object let Spark cache the relation?
I thought compute of dataset will happen in the first action and the results
are reused for both the steps.
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