Expand wildcard expressions in distinct on

[epsio-banay]

Closes #12940

Rationale for this change

What changes are included in this PR?

Are these changes tested?

yes

Are there any user-facing changes?

No

[alamb]

Looks good to me

Thank you @epsio-banay

[goldmedal]

Thanks @epsio-banay it looks to me. Just one suggestion:
How about adding an SQL test in datafusion/sqllogictest/test_files/distinct_on.slt?
It would be nice to ensure the plan won't be affected by other changes.

[alamb]

I verified that before this PR this query fails like this:

> create table foo as values (1), (2);
0 row(s) fetched.

> select distinct on (column1) * from foo;
Optimizer rule 'replace_distinct_aggregate' failed
caused by
replace_distinct_aggregate
caused by
Internal error: Failed due to a difference in schemas, original schema: DFSchema { inner: Schema { fields: [Field { name: "column1", data_type: Int64, nullable: true, dict_id: 0, dict_is_ordered: false, metadata: {} }], metadata: {} }, field_qualifiers: [Some(Bare { table: "foo" })], functional_dependencies: FunctionalDependencies { deps: [] } }, new schema: DFSchema { inner: Schema { fields: [Field { name: "column1", data_type: Null, nullable: true, dict_id: 0, dict_is_ordered: false, metadata: {} }], metadata: {} }, field_qualifiers: [Some(Bare { table: "foo" })], functional_dependencies: FunctionalDependencies { deps: [] } }.
This was likely caused by a bug in DataFusion's code and we would welcome that you file an bug report in our issue tracker

And after this PR it works

DataFusion CLI v42.0.0
> create table foo as values (1), (2);
0 row(s) fetched.
Elapsed 0.024 seconds.

> select distinct on (column1) * from foo;
+---------+
| column1 |
+---------+
| 1       |
| 2       |
+---------+
2 row(s) fetched.
Elapsed 0.026 seconds.

How about adding an SQL test in datafusion/sqllogictest/test_files/distinct_on.slt?

this is an excellent call @goldmedal -- I will make a follow on PR

[alamb]

PR with SLT tests: #12968