Function arrow::compute::kernels::concat_elements::concat_elements_utf8

source · [−]

pub fn concat_elements_utf8<Offset: OffsetSizeTrait>(
    left: &GenericStringArray<Offset>,
    right: &GenericStringArray<Offset>
) -> Result<GenericStringArray<Offset>>

Expand description

Returns the elementwise concatenation of a StringArray.

An index of the resulting StringArray is null if any of StringArray are null at that location.

e.g:

  ["Hello"] + ["World"] = ["HelloWorld"]

  ["a", "b"] + [None, "c"] = [None, "bc"]

An error will be returned if left and right have different lengths