Function datafusion_physical_expr::string_expressions::initcap

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pub fn initcap<T: OffsetSizeTrait>(args: &[ArrayRef]) -> Result<ArrayRef>

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Converts the first letter of each word to upper case and the rest to lower case. Words are sequences of alphanumeric characters separated by non-alphanumeric characters. initcap(‘hi THOMAS’) = ‘Hi Thomas’