eldenmoon opened a new pull request, #65561: URL: https://github.com/apache/doris/pull/65561
### What problem does this PR solve? Issue Number: None Related PR: None Problem Summary: Adds a default-disabled native ColumnVariantV2 path controlled by enable_variant_v2. The implementation preserves legacy behavior when disabled, provides canonical Variant encoding and version-gated exchange semantics, supports compute operators and nested Variant containers, and validates parse, cast, equality, aggregation, joins, windows, conditional expressions, set operations, and explode without creating tables or loading data. ### Release note Adds an experimental, default-disabled ColumnVariantV2 execution path controlled by enable_variant_v2. ### Check List (For Author) - Test: ASAN BE build; FE build/checkstyle; clang-format/check-format; clang-tidy on changed C++; Variant BE UT (566 passed, 5 skipped); targeted FE UT (130 passed); VariantV2 exchange UT (18 passed); VariantV2ExecutionTest (6 passed); variant_compute_v2 force-generated and normal regression; variant_parse_functions, test_variant_equality_contexts, and test_variant_ordering_comparison_error regressions. - Behavior changed: Yes (adds an opt-in ColumnVariantV2 compute path; legacy behavior remains the default) - Does this need documentation: No -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
