Reduce ambiguity for consecutive statements

- at least all of select/insert/update/delete (plus exec) can be added

Author: aharpervc

src/keywords.rs

@@ -1098,6 +1098,11 @@ pub const RESERVED_FOR_TABLE_ALIAS: &[Keyword] = &[
     Keyword::TABLESAMPLE,
     Keyword::FROM,
     Keyword::OPEN,
+    Keyword::INSERT,
+    Keyword::UPDATE,
+    Keyword::DELETE,
+    Keyword::EXEC,
+    Keyword::EXECUTE,
 ];
 
 /// Can't be used as a column alias, so that `SELECT <expr> alias`

tests/sqlparser_common.rs

@@ -668,6 +668,23 @@ fn parse_select_with_table_alias() {
     );
 }
 
+#[test]
+fn parse_consecutive_queries() {
+    let select_then_exec = "SELECT * FROM deleted; EXECUTE my_sp 'some', 'params'";
+    let _ = all_dialects()
+        .parse_sql_statements(select_then_exec)
+        .unwrap();
+    let _ = all_dialects_not_requiring_semicolon_statement_delimiter()
+        .statements_without_semicolons_parse_to(select_then_exec, "");
+
+    let select_then_update = "SELECT 1 FROM x; UPDATE y SET z = 1";
+    let _ = all_dialects()
+        .parse_sql_statements(select_then_update)
+        .unwrap();
+    let _ = all_dialects_not_requiring_semicolon_statement_delimiter()
+        .statements_without_semicolons_parse_to(select_then_update, "");
+}
+
 #[test]
 fn parse_analyze() {
     verified_stmt("ANALYZE TABLE test_table");