updated mysql.rs parse_infix to match sqlite.rs parse_infix style

Author: RPG-Alex

src/dialect/mysql.rs

@@ -102,14 +102,15 @@ impl Dialect for MySqlDialect {
     ) -> Option<Result<crate::ast::Expr, ParserError>> {
         // Parse DIV as an operator
         if parser.parse_keyword(Keyword::DIV) {
-            let right = match parser.parse_expr() {
-                Ok(val) => val,
+            let left = Box::new(expr.clone());
+            let right = Box::new(match parser.parse_expr() {
+                Ok(expr) => expr,
                 Err(e) => return Some(Err(e)),
-            };
+            });
             Some(Ok(Expr::BinaryOp {
-                left: Box::new(expr.clone()),
+                left,
                 op: BinaryOperator::MyIntegerDivide,
-                right: Box::new(right),
+                right,
             }))
         } else {
             None

src/dialect/sqlite.rs

@@ -89,15 +89,11 @@ impl Dialect for SQLiteDialect {
         ] {
             if parser.parse_keyword(keyword) {
                 let left = Box::new(expr.clone());
-                let right = match parser.parse_expr() {
-                    Ok(val) => val,
+                let right = Box::new(match parser.parse_expr() {
+                    Ok(expr) => expr,
                     Err(e) => return Some(Err(e)),
-                };
-                return Some(Ok(Expr::BinaryOp {
-                    left,
-                    op,
-                    right: Box::new(right),
-                }));
+                });
+                return Some(Ok(Expr::BinaryOp { left, op, right }));
             }
         }
         None