Function arrow_string::concat_elements::concat_elements_utf8
source ยท pub fn concat_elements_utf8<Offset: OffsetSizeTrait>(
left: &GenericStringArray<Offset>,
right: &GenericStringArray<Offset>,
) -> Result<GenericStringArray<Offset>, ArrowError>
Expand description
Returns the elementwise concatenation of a GenericStringArray
.
An index of the resulting GenericStringArray
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