eldenmoon commented on code in PR #34925:
URL: https://github.com/apache/doris/pull/34925#discussion_r1618934266
##########
be/src/olap/rowset/rowset_meta.cpp:
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@@ -213,6 +216,17 @@ void RowsetMeta::merge_rowset_meta(const RowsetMeta&
other) {
if (rowset_state() == RowsetStatePB::BEGIN_PARTIAL_UPDATE) {
set_rowset_state(RowsetStatePB::COMMITTED);
}
+ // In partial update the rowset schema maybe updated when table contains
variant type, so we need the newest schema to be updated
+ // Otherwise the schema is stale and lead to wrong data read
+ if (tablet_schema()->num_variant_columns() > 0) {
Review Comment:
the max version of schema will be choosen as base schema to merge, so if the
newest schema num_variant_columns == 0, all subcolumns will be dropped
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