- Create View corrected in using set operations

Author: wumpz

src/main/javacc/net/sf/jsqlparser/parser/JSqlParserCC.jj

@@ -1861,10 +1861,9 @@ CreateView CreateView():
 	[ columnNames = ColumnsNamesList() { createView.setColumnNames(columnNames); } ]
 	<K_AS>
 	(
-	  LOOKAHEAD(3)
-	  "(" select=SelectBody() ")" { createView.setSelectBody(select); }
+      LOOKAHEAD(SelectBody()) select=SelectBody() { createView.setSelectBody(select); }
 	  |
-      select=SelectBody() { createView.setSelectBody(select); }
+	  "(" select=SelectBody() ")" { createView.setSelectBody(select); }
     )
 	{ return createView; }
 }

src/test/java/net/sf/jsqlparser/test/create/CreateViewTest.java

@@ -59,6 +59,11 @@ public void testCreateView5() throws JSQLParserException {
 		assertEquals("mytab", ((Table) ((PlainSelect) createView.getSelectBody()).getFromItem()).getName());
 		assertEquals(statement2, createView.toString());
 	}
+	
+	public void testCreateViewUnion() throws JSQLParserException {
+		String stmt = "CREATE VIEW view1 AS (SELECT a, b FROM testtab) UNION (SELECT b, c FROM testtab2)";
+		assertSqlCanBeParsedAndDeparsed(stmt);
+	}
 
 	private void assertSqlCanBeParsedAndDeparsed(String statement) throws JSQLParserException {
 		Statement parsed = parserManager.parse(new StringReader(statement));