[SPARK-18772][SQL] Avoid unnecessary conversion try for special floats in JSON #17956

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Commits on May 12, 2017

[SPARK-18772][SQL] NaN/Infinite float parsing in JSON is inconsistent

Nathan Howell
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HyukjinKwon
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Avoid unnecessary cast try for special floats in JSON and add related tests
HyukjinKwon
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Commits on May 13, 2017

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HyukjinKwon
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