ast: fix format bug for some expressions (#7770)

Author: mccxj

ast/expressions.go

@@ -145,7 +145,11 @@ type BetweenExpr struct {
 // Format the ExprNode into a Writer.
 func (n *BetweenExpr) Format(w io.Writer) {
 	n.Expr.Format(w)
-	fmt.Fprint(w, " BETWEEN ")
+	if n.Not {
+		fmt.Fprint(w, " NOT BETWEEN ")
+	} else {
+		fmt.Fprint(w, " BETWEEN ")
+	}
 	n.Left.Format(w)
 	fmt.Fprint(w, " AND ")
 	n.Right.Format(w)
@@ -540,7 +544,11 @@ type PatternInExpr struct {
 // Format the ExprNode into a Writer.
 func (n *PatternInExpr) Format(w io.Writer) {
 	n.Expr.Format(w)
-	fmt.Fprint(w, " IN (")
+	if n.Not {
+		fmt.Fprint(w, " NOT IN (")
+	} else {
+		fmt.Fprint(w, " IN (")
+	}
 	for i, expr := range n.List {
 		expr.Format(w)
 		if i != len(n.List)-1 {
@@ -673,7 +681,11 @@ type PatternLikeExpr struct {
 // Format the ExprNode into a Writer.
 func (n *PatternLikeExpr) Format(w io.Writer) {
 	n.Expr.Format(w)
-	fmt.Fprint(w, " LIKE ")
+	if n.Not {
+		fmt.Fprint(w, " NOT LIKE ")
+	} else {
+		fmt.Fprint(w, " LIKE ")
+	}
 	n.Pattern.Format(w)
 	if n.Escape != '\\' {
 		fmt.Fprint(w, " ESCAPE ")

ast/format_test.go

@@ -45,6 +45,7 @@ func (ts *testAstFormatSuite) TestAstFormat(c *C) {
 
 		// Expressions.
 		{`f between 30 and 50`, "`f` BETWEEN 30 AND 50"},
+		{`f not between 30 and 50`, "`f` NOT BETWEEN 30 AND 50"},
 		{`345 + "  hello  "`, `345 + "  hello  "`},
 		{`"hello world"    >=    'hello world'`, `"hello world" >= "hello world"`},
 		{`case 3 when 1 then false else true end`, `CASE 3 WHEN 1 THEN FALSE ELSE TRUE END`},
@@ -56,7 +57,9 @@ func (ts *testAstFormatSuite) TestAstFormat(c *C) {
 		{`3 is false`, `3 IS FALSE`},
 		{`  ( x is false  )`, "(`x` IS FALSE)"},
 		{`3 in ( a,b,"h",6 )`, "3 IN (`a`,`b`,\"h\",6)"},
+		{`3 not in ( a,b,"h",6 )`, "3 NOT IN (`a`,`b`,\"h\",6)"},
 		{`"abc" like '%b%'`, `"abc" LIKE "%b%"`},
+		{`"abc" not like '%b%'`, `"abc" NOT LIKE "%b%"`},
 		{`"abc" like '%b%' escape '_'`, `"abc" LIKE "%b%" ESCAPE '_'`},
 		{`"abc" regexp '.*bc?'`, `"abc" REGEXP ".*bc?"`},
 		{`"abc" not regexp '.*bc?'`, `"abc" NOT REGEXP ".*bc?"`},