fixes #845

Author: wumpz

src/main/jjtree/net/sf/jsqlparser/parser/JSqlParserCC.jjt

@@ -1307,6 +1307,8 @@ PlainSelect PlainSelect() #PlainSelect:
     [LOOKAHEAD(<K_ORDER> <K_BY>) orderByElements = OrderByElements() { plainSelect.setOrderByElements(orderByElements);    }   ]
     [LOOKAHEAD(<K_LIMIT>) limit = LimitWithOffset() { plainSelect.setLimit(limit);    } ]
     [LOOKAHEAD(<K_OFFSET>) offset = Offset() { plainSelect.setOffset(offset);    } ]
+	[LOOKAHEAD(<K_LIMIT>, { limit==null }) limit = LimitWithOffset() { plainSelect.setLimit(limit);    } ]
+
     [LOOKAHEAD(<K_FETCH>) fetch = Fetch() { plainSelect.setFetch(fetch);    } ]
 
     [ LOOKAHEAD(2) <K_FOR> <K_UPDATE> { plainSelect.setForUpdate(true); }

src/test/java/net/sf/jsqlparser/statement/select/SelectTest.java

@@ -3839,4 +3839,16 @@ public void testMultiColumnAliasIssue849() throws JSQLParserException {
     public void testMultiColumnAliasIssue849_2() throws JSQLParserException {
         assertSqlCanBeParsedAndDeparsed("SELECT * FROM crosstab('select rowid, attribute, value from ct where attribute = ''att2'' or attribute = ''att3'' order by 1,2') AS ct(row_name text, category_1 text, category_2 text, category_3 text)");
     }
+
+    @Test
+    public void testLimitClauseDroppedIssue845() throws JSQLParserException {
+        assertEquals(
+                "SELECT * FROM employee ORDER BY emp_id LIMIT 10 OFFSET 2",
+                CCJSqlParserUtil.parse("SELECT * FROM employee ORDER BY emp_id OFFSET 2 LIMIT 10").toString());
+    }
+
+    @Test
+    public void testLimitClauseDroppedIssue845_2() throws JSQLParserException {
+        assertSqlCanBeParsedAndDeparsed("SELECT * FROM employee ORDER BY emp_id LIMIT 10 OFFSET 2");
+    }
 }