Jefffrey commented on code in PR #18205:
URL: https://github.com/apache/datafusion/pull/18205#discussion_r2462921847
##########
datafusion/sqllogictest/test_files/spark/math/abs.slt:
##########
@@ -23,10 +23,103 @@
## Original Query: SELECT abs(-1);
## PySpark 3.5.5 Result: {'abs(-1)': 1, 'typeof(abs(-1))': 'int',
'typeof(-1)': 'int'}
-#query
-#SELECT abs(-1::int);
+query I
+SELECT abs(-1::int);
+----
+1
+
+statement ok
+CREATE TABLE test_nullable_integer(
+ c1 TINYINT,
+ c2 SMALLINT,
+ c3 INT,
+ c4 BIGINT,
+ dataset TEXT
+ )
+ AS VALUES
+ (NULL, NULL, NULL, NULL, 'nulls'),
+ (0, 0, 0, 0, 'zeros'),
+ (1, 1, 1, 1, 'ones');
+
+query I
+INSERT into test_nullable_integer values(-128, -32768, -2147483648,
-9223372036854775808, 'mins');
+----
+1
+
+# abs: signed int minimal values
+query IIII
+select abs(c1), abs(c2), abs(c3), abs(c4) from test_nullable_integer where
dataset = 'mins'
Review Comment:
I think this is a bug in SQL parsing:
```sql
> select -128::tinyint;
Arrow error: Cast error: Can't cast value 128 to type Int8
> select (-128)::tinyint;
+-------------+
| Int64(-128) |
+-------------+
| -128 |
+-------------+
1 row(s) fetched.
Elapsed 0.003 seconds.
```
- Might need to raise an issue for this?
So can wrap it in parentheses to ensure the correct precedence, or
alternatively use `arrow_cast`:
```sql
> select arrow_cast(-128, 'Int8');
+--------------------------------------+
| arrow_cast(Int64(-128),Utf8("Int8")) |
+--------------------------------------+
| -128 |
+--------------------------------------+
1 row(s) fetched.
Elapsed 0.007 seconds.
```
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