Rewind the current token before parse_go

Author: aharpervc

src/parser/mod.rs

@@ -670,7 +670,10 @@ impl<'a> Parser<'a> {
                     self.prev_token();
                     self.parse_vacuum()
                 }
-                Keyword::GO => self.parse_go(),
+                Keyword::GO => {
+                    self.prev_token();
+                    self.parse_go()
+                }
                 _ => self.expected("an SQL statement", next_token),
             },
             Token::LParen => {
@@ -17388,6 +17391,8 @@ impl<'a> Parser<'a> {
 
     /// Parse [Statement::Go]
     fn parse_go(&mut self) -> Result<Statement, ParserError> {
+        self.expect_keyword_is(Keyword::GO)?;
+
         // disambiguate between GO as batch delimiter & GO as identifier (etc)
         // compare:
         // ```sql