wenzhenghu commented on code in PR #65126:
URL: https://github.com/apache/doris/pull/65126#discussion_r3680850069
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fe/fe-core/src/main/java/org/apache/doris/datasource/hive/event/DropTableEvent.java:
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@@ -64,6 +65,10 @@ public static List<MetastoreEvent>
getEvents(NotificationEvent event,
return Lists.newArrayList(new DropTableEvent(event, catalogName));
}
+ private static String normalizeTableName(String tableName) {
+ return tableName.toLowerCase(Locale.ROOT);
Review Comment:
Fixed in `694268e500b`.
`DropTableEvent` no longer lower-cases the HMS message table name before
cleanup. The cache-only DROP path now keeps the original remote spelling
through `CatalogMgr.unregisterExternalTable()`, so in
`lower_case_table_names=2` it can still resolve and invalidate the exact local
engine-cache key (for example `MixedTbl`) even when global object metadata TTL
is `0` and only the engine entry remains hot.
I also added FE UT coverage for this exact case in `ExternalCatalogTest`:
mode 2, cold names/object/ID state, and a hot Hive engine schema entry keyed by
the original mixed-case table name. `ExternalCatalogTest` passes locally after
rebase; `mvn -pl fe-core -DskipTests checkstyle:check` and `git diff --check`
also pass.
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