github-actions[bot] commented on code in PR #63128:
URL: https://github.com/apache/doris/pull/63128#discussion_r3216371909
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fe/fe-core/src/main/java/org/apache/doris/catalog/BuiltinAggregateFunctions.java:
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@@ -135,8 +137,10 @@ private BuiltinAggregateFunctions() {
agg(BoolOr.class, "bool_or", "boolor_agg"),
agg(BoolAnd.class, "bool_and", "booland_agg"),
agg(BoolXor.class, "bool_xor", "boolxor_agg"),
- agg(CollectList.class, "collect_list", "group_array"),
- agg(CollectSet.class, "collect_set", "group_uniq_array"),
+ agg(CollectList.class, "collect_list_v1"),
Review Comment:
This makes every public `collect_list` / `group_array` call resolve to the
new BE symbol `collect_list_v2` immediately. In a rolling upgrade with the new
FE and any old BE, the fragment sent to that old BE will reference
`collect_list_v2`, but the old BE only registers `collect_list`/`collect_set`;
it does not know either `*_v2` or the newly-added `*_v1` aliases. The added BE
aliases therefore do not provide downgrade compatibility. Please gate the v2
symbol by BE capability/`be_exec_version` and fall back to the original
`collect_list`/`collect_set` names until all selected backends support v2.
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