Fix parse_identifiers not taking semicolons into account (apache#2137)

Author: jnlt3

src/parser/mod.rs

@@ -12055,7 +12055,7 @@ impl<'a> Parser<'a> {
                 Token::Word(w) => {
                     idents.push(w.clone().into_ident(self.peek_token_ref().span));
                 }
-                Token::EOF | Token::Eq => break,
+                Token::EOF | Token::Eq | Token::SemiColon => break,
                 _ => {}
             }
             self.advance_token();

tests/sqlparser_postgres.rs

@@ -7914,3 +7914,11 @@ fn parse_create_operator_class() {
         )
         .is_err());
 }
+
+#[test]
+fn parse_identifiers_semicolon_handling() {
+    let statement = "SHOW search_path; SELECT 1";
+    pg_and_generic().statements_parse_to(statement, statement);
+    let statement = "SHOW search_path; SHOW ALL; SHOW ALL";
+    pg_and_generic().statements_parse_to(statement, statement);
+}