theirix commented on code in PR #22244:
URL: https://github.com/apache/datafusion/pull/22244#discussion_r3306764457
##########
datafusion/sqllogictest/test_files/spark/string/concat.slt:
##########
@@ -71,67 +72,22 @@ SELECT concat('a', arrow_cast('b', 'LargeUtf8'),
arrow_cast('c', 'Utf8View')), a
----
abc Utf8View
-# Test mixed types: Utf8 + Binary
-query TT
-SELECT concat(arrow_cast('hello', 'Utf8'), arrow_cast(' world', 'Binary')),
arrow_typeof(concat(arrow_cast('hello', 'Utf8'), arrow_cast(' world',
'Binary')));
-----
-hello world Utf8
+# Coercion rules from Binary to Utf8 do no apply compared to generic `concat`,
+# so `concat` produces an explicit error
+query error Error during planning: concat does not support mixed string and
binary inputs
+SELECT concat(arrow_cast('hello', 'Utf8'), arrow_cast(' world', 'Binary'));
Review Comment:
That's interesting. It happened that Spark's concat didn't apply coercion
rules via `coerce_types` - fixed, now it should
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
