Kimishu opened a new issue, #2056:
URL: https://github.com/apache/datafusion-sqlparser-rs/issues/2056
Working on my custom sql validation, I needed somehow to check, does user
provide group_by/limit+offset/sort_by clauses.
I got smth like this and found `.group_by` field as non-optional. Is it
right?
```rust
let wrong_query = "SELECT * FROM example_table GROUP BY example_field";
//Parser returns success(!) below
if let Statement::Query(q) = Parser::parse_sql(&GenericDialect {},
&query)?.first().unwrap() {
if q.limit_clause.is_none() {...}
if q.order_by.is_none() {...}
let select_query = query.body.as_select().unwrap();
//And I expected smth like this:
if select_query.group_by.is_none() {...}
}
```
Maybe I'm doing smth wrong and there is a proper and faster way for that?
Also I noticed a `parse_optional_group_by` fn but I didn't get how to use
it., there is no info nor examples in docs about it. Looks like it's inner fn?
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