Use the same order in #[derive()] for all AST types

(So that adding another trait can be done with a global search and replace.)

src/sqlast/sql_operator.rs

@@ -1,5 +1,5 @@
 /// SQL Operator
-#[derive(Debug, PartialEq, Clone)]
+#[derive(Debug, Clone, PartialEq)]
 pub enum SQLOperator {
     Plus,
     Minus,

src/sqlast/table_key.rs

@@ -1,6 +1,6 @@
 use super::{SQLIdent, SQLObjectName};
 
-#[derive(Debug, PartialEq, Clone)]
+#[derive(Debug, Clone, PartialEq)]
 pub enum AlterOperation {
     AddConstraint(TableKey),
     RemoveConstraint { name: SQLIdent },
@@ -17,13 +17,13 @@ impl ToString for AlterOperation {
     }
 }
 
-#[derive(Debug, PartialEq, Clone)]
+#[derive(Debug, Clone, PartialEq)]
 pub struct Key {
     pub name: SQLIdent,
     pub columns: Vec<SQLIdent>,
 }
 
-#[derive(Debug, PartialEq, Clone)]
+#[derive(Debug, Clone, PartialEq)]
 pub enum TableKey {
     PrimaryKey(Key),
     UniqueKey(Key),