fix: trino validation (#248)

* fix: #246 program does not match standaloneClause

* test: patch unit tests

test/parser/flinksql/validateInvalidSql.test.ts

@@ -0,0 +1,16 @@
+import { FlinkSQL } from '../../filters';
+
+const randomText = `dhsdansdnkla ndjnsla ndnalks`;
+const unCompleteSQL = `CREATE TABLE`;
+
+describe('Flink SQL validate invalid sql', () => {
+    const parser = new FlinkSQL();
+
+    test('validate random text', () => {
+        expect(parser.validate(randomText).length).not.toBe(0);
+    });
+
+    test('validate unComplete sql', () => {
+        expect(parser.validate(unCompleteSQL).length).not.toBe(0);
+    });
+});