Dialects should be able to require select

[vanillajonathan]

Some targets may not support querying using the asterisk and requires that the column names be specified in the query.

SolarWinds Query Language (SWQL) which is a subset of SQL does not allow SELECT * FROM invoices, it requires SELECT name, sum_income FROM invoices.

Docs: https://support.solarwinds.com/SuccessCenter/s/article/Use-SolarWinds-Query-Language-SWQL?language=en_US

pub(super) trait DialectHandler: Any + Debug {
+    /// Whether or not to require the select transform.
+    fn requires_select(&self) -> bool {
+        false
+    }
}