cleanup large enum variants (#906)

* clippy?

* cleanup TableRef

Author: tyt2y3

src/query/select.rs

@@ -1033,7 +1033,7 @@ impl SelectStatement {
     where
         T: IntoIden,
     {
-        self.from_from(TableRef::SubQuery(query, alias.into_iden()))
+        self.from_from(TableRef::SubQuery(query.into(), alias.into_iden()))
     }
 
     /// From function call.
@@ -1612,7 +1612,7 @@ impl SelectStatement {
     {
         self.join_join(
             join,
-            TableRef::SubQuery(query, alias.into_iden()),
+            TableRef::SubQuery(query.into(), alias.into_iden()),
             JoinOn::Condition(Box::new(ConditionHolder::new_with_condition(
                 condition.into_condition(),
             ))),
@@ -1678,7 +1678,7 @@ impl SelectStatement {
     {
         self.join_join(
             join,
-            TableRef::SubQuery(query, alias.into_iden()),
+            TableRef::SubQuery(query.into(), alias.into_iden()),
             JoinOn::Condition(Box::new(ConditionHolder::new_with_condition(
                 condition.into_condition(),
             ))),

src/types.rs

@@ -159,7 +159,6 @@ pub trait IntoColumnRef {
 }
 
 /// Table references
-#[allow(clippy::large_enum_variant)]
 #[derive(Debug, Clone, PartialEq)]
 #[non_exhaustive]
 pub enum TableRef {
@@ -176,7 +175,7 @@ pub enum TableRef {
     /// Table identifier with database and schema prefix and alias
     DatabaseSchemaTableAlias(DynIden, DynIden, DynIden, DynIden),
     /// Subquery with alias
-    SubQuery(SelectStatement, DynIden),
+    SubQuery(Box<SelectStatement>, DynIden),
     /// Values list with alias
     ValuesList(Vec<ValueTuple>, DynIden),
     /// Function call with alias