EpsilonPrime commented on code in PR #33775: URL: https://github.com/apache/arrow/pull/33775#discussion_r1083721581
########## cpp/src/arrow/engine/substrait/extension_set.cc: ########## @@ -790,6 +796,30 @@ ExtensionIdRegistry::SubstraitCallToArrow DecodeOptionlessUncheckedArithmetic( }; } +ExtensionIdRegistry::SubstraitCallToArrow DecodeBinaryRoundingMode( + const std::string& function_name) { + return [function_name](const SubstraitCall& call) -> Result<compute::Expression> { + ARROW_ASSIGN_OR_RAISE( + compute::RoundMode round_mode, + ParseOptionOrElse( + call, "rounding", kRoundModeParser, + {compute::RoundMode::DOWN, compute::RoundMode::UP, + compute::RoundMode::TOWARDS_ZERO, compute::RoundMode::TOWARDS_INFINITY, + compute::RoundMode::HALF_DOWN, compute::RoundMode::HALF_UP, + compute::RoundMode::HALF_TOWARDS_ZERO, + compute::RoundMode::HALF_TOWARDS_INFINITY, compute::RoundMode::HALF_TO_EVEN, + compute::RoundMode::HALF_TO_ODD}, + compute::RoundMode::HALF_TOWARDS_INFINITY)); Review Comment: HALF_TOWARDS_INFINITY mirrors Ceiling, AWAY_FROM_ZERO mirrors the way humans round. What rationale is there for HALF_TO_EVEN? Is it because it's the first option listed in the proposed YAML definition? I'm open to whatever makes sense. -- 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: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org