HangyuanLiu commented on a change in pull request #2911: Support not_empty
function and empty function
URL: https://github.com/apache/incubator-doris/pull/2911#discussion_r379821578
##########
File path: be/src/exprs/string_functions.cpp
##########
@@ -99,6 +99,32 @@ BooleanVal StringFunctions::ends_with(
return BooleanVal(str_sp.ends_with(suffix_sp));
}
+BooleanVal StringFunctions::empty(
+ FunctionContext* context, const StringVal& str) {
+ if (str.is_null) {
+ return BooleanVal::null();
+ }
+ if (str.len == 0) {
+ return 1;
+ }
Review comment:
```suggestion
} else {
```
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