xylaaaaa commented on code in PR #65183:
URL: https://github.com/apache/doris/pull/65183#discussion_r3527055431
##########
be/src/format_v2/column_mapper.h:
##########
@@ -278,6 +278,16 @@ class ParquetColumnMapper final : public TableColumnMapper
{
using TableColumnMapper::TableColumnMapper;
};
+// ORC uses file-local conjuncts both for row-level filtering and for ORC
SearchArgument pruning.
+// column_predicate_filters are Parquet-only pruning hints in the v2 path.
+class OrcColumnMapper final : public TableColumnMapper {
+public:
+ using TableColumnMapper::TableColumnMapper;
+
+protected:
+ bool enable_column_predicate_filters() const override { return false; }
Review Comment:
这里不是 ORC 在使用 `column_predicate_filters`。`OrcColumnMapper` 覆盖
`enable_column_predicate_filters()` 返回 false，是为了让 ORC 路径显式不生成这类 Parquet-only
pruning hints；ORC 仍然走 file-local conjuncts -> SARG/行级过滤。
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