xiaokang commented on code in PR #26749:
URL: https://github.com/apache/doris/pull/26749#discussion_r1393503385


##########
be/src/olap/rowset/beta_rowset_reader.cpp:
##########
@@ -139,6 +139,7 @@ Status 
BetaRowsetReader::get_segment_iterators(RowsetReaderContext* read_context
     // because the absence of a schema version can result in reading a stale 
version
     // of the schema after a schema change.
     if (_read_context->tablet_schema->schema_version() < 0 ||
+        _read_context->tablet_schema->num_variant_columns() > 0 ||

Review Comment:
   add comment for explanation



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