devanshu0987 commented on issue #12709:
URL: https://github.com/apache/datafusion/issues/12709#issuecomment-3830299845
> One thing to keep in mind is how we handle binary || string concat (i.e.
which common type we coerce to); we can't assume all binary is a valid string,
but strings are always valid binary.
```
devanshu=# SELECT 'abc'::text || '\x00'::bytea AS result,
pg_typeof('abc'::text || '\x00'::bytea) AS concat_result;
result | concat_result
---------+---------------
abc\x00 | text
(1 row)
```
I validated the rules in Postgres 18. It coerces it to Text type regardless
of whether the binary string is valid or not.
bytea is coerced to text via its textual representation.
Can we follow the same for Data Fusion?
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