jonahgao commented on code in PR #14213:
URL: https://github.com/apache/datafusion/pull/14213#discussion_r1923884148
##########
datafusion/sqllogictest/test_files/expr.slt:
##########
@@ -465,6 +465,11 @@ SELECT concat_ws('|','a',NULL,NULL)
----
a
+query T
+SELECT concat_ws('','a','b','c')
Review Comment:
I tested this query on the
[main](https://github.com/apache/datafusion/commit/2f283277d523404401b206e5b98819a0126341b8)
branch, and it gave the same result. Am I overlooking somethingš¤?
```sh
DataFusion CLI v44.0.0
> SELECT concat_ws('','a','b','c');
+---------------------------------------------------+
| concat_ws(Utf8(""),Utf8("a"),Utf8("b"),Utf8("c")) |
+---------------------------------------------------+
| abc |
+---------------------------------------------------+
1 row(s) fetched.
Elapsed 0.009 seconds.
```
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