sashapolo commented on code in PR #3446:
URL: https://github.com/apache/ignite-3/pull/3446#discussion_r1533440081
##########
modules/table/src/main/java/org/apache/ignite/internal/table/distributed/TableUtils.java:
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@@ -81,4 +87,44 @@ public static int
findStartBuildingIndexCatalogVersion(CatalogService catalogSer
BUILDING, indexId, fromCatalogVersionIncluded,
latestCatalogVersion
));
}
+
+ /**
+ * Collects a list of tables that were removed from the catalog and should
have been dropped due to a low watermark (if the catalog
+ * version in which the table was removed is less than or equal to the
active catalog version of low watermark).
+ *
+ * @param catalogService Catalog service.
+ * @param lowWatermark Low watermark, {@code null} if it has never been
updated.
+ * @return Result is sorted by the catalog version in which the table was
removed from the catalog and by the table ID.
+ */
+ // TODO: IGNITE-21771 Process or check catalog compaction
+ static List<DroppedTableInfo> droppedTables(CatalogService catalogService,
@Nullable HybridTimestamp lowWatermark) {
+ if (lowWatermark == null) {
+ return List.of();
+ }
+
+ int earliestCatalogVersion = catalogService.earliestCatalogVersion();
+ int lwmCatalogVersion =
catalogService.activeCatalogVersion(lowWatermark.longValue());
+
+ Set<Integer> previousCatalogVersionTableIds = Set.of();
Review Comment:
yes, you are right, my suggestion is not correct (it's easy it make it
correct, though). Let's see what you will come up with.
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