jerryshao commented on code in PR #9127:
URL: https://github.com/apache/gravitino/pull/9127#discussion_r2709653936
##########
lance/lance-common/src/main/java/org/apache/gravitino/lance/common/ops/gravitino/GravitinoLanceTableOperations.java:
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@@ -284,6 +297,63 @@ public DropTableResponse dropTable(String tableId, String
delimiter) {
return response;
}
+ @Override
+ public AlterTableDropColumnsResponse alterTableDropColumns(
+ String tableId, String delimiter, AlterTableDropColumnsRequest request) {
+ ObjectIdentifier nsId = ObjectIdentifier.of(tableId,
Pattern.quote(delimiter));
+ Preconditions.checkArgument(
+ nsId.levels() == 3, "Expected at 3-level namespace but got: %s",
nsId.levels());
+
+ String catalogName = nsId.levelAtListPos(0);
+ Catalog catalog =
namespaceWrapper.loadAndValidateLakehouseCatalog(catalogName);
+
+ NameIdentifier tableIdentifier =
+ NameIdentifier.of(nsId.levelAtListPos(1), nsId.levelAtListPos(2));
+
+ TableChange[] changes =
+ request.getColumns().stream()
+ .map(colName -> TableChange.deleteColumn(new String[] {colName},
false))
+ .toArray(TableChange[]::new);
+
+ catalog.asTableCatalog().alterTable(tableIdentifier, changes);
+
+ return new AlterTableDropColumnsResponse();
Review Comment:
Is this the spec definition to return an empty response?
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