Fix SQL parsing of JSON strings

sql/scanner.go

@@ -928,10 +928,10 @@ func (s *scanner) scanObject(chp ...rune) (tok Token, lit string, val interface{
 		if ch := s.next(); ch == end && sub == 0 && qut == 0 {
 			buf.WriteRune(ch)
 			break
-		} else if ch == beg {
+		} else if ch == beg && qut == 0 {
 			sub++
 			buf.WriteRune(ch)
-		} else if ch == end {
+		} else if ch == end && qut == 0 {
 			sub--
 			buf.WriteRune(ch)
 		} else if ch == eof {

sql/sql_test.go

@@ -1377,6 +1377,14 @@ func Test_Parse_Queries_Create(t *testing.T) {
 				Echo: AFTER,
 			}}},
 		},
+		{
+			sql: `CREATE person CONTENT {"test":"{{{"}`,
+			res: &Query{Statements: []Statement{&CreateStatement{
+				What: []Expr{&Ident{"person"}},
+				Data: &ContentExpression{Data: map[string]interface{}{"test": "{{{"}},
+				Echo: AFTER,
+			}}},
+		},
 		{
 			sql: `CREATE person CONTENT something`,
 			err: "Found `something` but expected `json`",
@@ -1557,6 +1565,14 @@ func Test_Parse_Queries_Update(t *testing.T) {
 				Echo: AFTER,
 			}}},
 		},
+		{
+			sql: `UPDATE person CONTENT {"test":"{{{"}`,
+			res: &Query{Statements: []Statement{&UpdateStatement{
+				What: []Expr{&Ident{"person"}},
+				Data: &ContentExpression{Data: map[string]interface{}{"test": "{{{"}},
+				Echo: AFTER,
+			}}},
+		},
 		{
 			sql: `UPDATE person RETURN`,
 			err: "Found `` but expected `NONE, BEFORE, AFTER`",