jayzhan211 commented on PR #14440:
URL: https://github.com/apache/datafusion/pull/14440#issuecomment-2650402809
I revisit the binary to string for ascii but it seems either Postgres and
Duckdb correctly support it.
```
postgres=# select ascii('0xa');
ascii
-------
48
(1 row)
postgres=# select ascii(X'a');
ERROR: function ascii(bit) does not exist
LINE 1: select ascii(X'a');
^
HINT: No function matches the given name and argument types. You might need
to add explicit type casts.
postgres=# select ascii(x'a');
ERROR: function ascii(bit) does not exist
LINE 1: select ascii(x'a');
^
HINT: No function matches the given name and argument types. You might need
to add explicit type casts.
postgres=# select ascii('xa');
ascii
-------
120
(1 row)
```
```
D select ascii('0xa');
┌──────────────┐
│ ascii('0xa') │
│ int32 │
├──────────────┤
│ 48 │
└──────────────┘
D select ascii(x'a');
┌─────────────┐
│ ascii('xa') │
│ int32 │
├─────────────┤
│ 120 │
└─────────────┘
D select ascii('xa');
┌─────────────┐
│ ascii('xa') │
│ int32 │
├─────────────┤
│ 120 │
└─────────────┘
Note that DuckDB process ascii(x'a') as ascii('xa') which is not binary
```
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