Jefffrey opened a new issue, #5045: URL: https://github.com/apache/arrow-rs/issues/5045
**Describe the bug** <!-- A clear and concise description of what the bug is. --> Floats and doubles that are zero (or negative zero) are displayed in format `0E0` for `Field` from record api **To Reproduce** <!-- Steps to reproduce the behavior: --> In unit test: https://github.com/apache/arrow-rs/blob/91acfb07a9929a2d6721c5417e47c0c472372a86/parquet/src/record/api.rs#L1148-L1158 Modify to add new case: ```rust #[test] fn test_convert_float_to_string() { assert_eq!(format!("{}", Field::Float(1.0)), "1.0"); assert_eq!(format!("{}", Field::Float(9.63)), "9.63"); assert_eq!(format!("{}", Field::Float(1e-15)), "0.000000000000001"); assert_eq!(format!("{}", Field::Float(1e-16)), "1E-16"); assert_eq!(format!("{}", Field::Float(1e19)), "10000000000000000000.0"); assert_eq!(format!("{}", Field::Float(1e20)), "1E20"); assert_eq!(format!("{}", Field::Float(1.7976931E30)), "1.7976931E30"); assert_eq!(format!("{}", Field::Float(-1.7976931E30)), "-1.7976931E30"); assert_eq!(format!("{}", Field::Float(0.0)), "0.0"); // new test case, should succeed } ``` Running test will fail: ```sh parquet$ cargo test --lib record::api::tests::test_convert_float_to_string -- --exact Finished test [unoptimized + debuginfo] target(s) in 0.06s Running unittests src/lib.rs (/media/jeffrey/1tb_860evo_ssd/.cargo_target_cache/debug/deps/parquet-b466af98c7f74484) running 1 test test record::api::tests::test_convert_float_to_string ... FAILED failures: ---- record::api::tests::test_convert_float_to_string stdout ---- thread 'record::api::tests::test_convert_float_to_string' panicked at parquet/src/record/api.rs:1158:9: assertion `left == right` failed left: "0E0" right: "0.0" note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace failures: record::api::tests::test_convert_float_to_string test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 616 filtered out; finished in 0.00s error: test failed, to rerun pass `--lib` ``` **Expected behavior** <!-- A clear and concise description of what you expected to happen. --> Test case succeeds **Additional context** <!-- Add any other context about the problem here. --> -- 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]
