zclllyybb commented on code in PR #18580:
URL: https://github.com/apache/doris/pull/18580#discussion_r1167540940
##########
be/src/util/simd/vstring_function.h:
##########
@@ -122,6 +122,101 @@ class VStringFunctions {
return rtrim(ltrim(str));
}
+ static StringRef rtrim(const StringRef& str, const StringRef& rhs) {
+ if (str.size == 0 || rhs.size == 0) {
+ return str;
+ }
+ if (rhs.size == 1) {
Review Comment:
not required for this pr but may be considerable: for most situations these
function to be used, the needles are likely to be constant. So we can also use
SIMD bitwise compare to optimize them. just give code below a little change
will make it.
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