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ARROW-11039: [Rust] Performance improvement for utf-8 to float cast
Utilize `lexical_core::parse` for faster parsing. ``` cast utf8 to f32 time: [25.840 us 25.878 us 25.921 us] change: [-45.735% -45.590% -45.408%] (p = 0.00 < 0.05) Performance has improved. Found 7 outliers among 100 measurements (7.00%) 1 (1.00%) low mild 3 (3.00%) high mild 3 (3.00%) high severe ``` Closes #9018 from Dandandan/perf_cast_float Lead-authored-by: Daniël Heres <danielheres@gmail.com> Co-authored-by: Heres, Daniel <danielheres@gmail.com> Signed-off-by: Jorge C. Leitao <jorgecarleitao@gmail.com>
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