fixes #1055 - added simple jdbc parameter to interval expression

Author: wumpz

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

@@ -3387,7 +3387,7 @@ IntervalExpression IntervalExpression() : {
 {
 
 { interval = new IntervalExpression(); }
-    <K_INTERVAL> ["-" {signed=true;}] (token=<S_LONG> | token=<S_DOUBLE> | token=<S_CHAR_LITERAL> | expr = Column() | expr = JdbcNamedParameter() )
+    <K_INTERVAL> ["-" {signed=true;}] (token=<S_LONG> | token=<S_DOUBLE> | token=<S_CHAR_LITERAL> | expr = Column() | expr = JdbcNamedParameter() | expr = SimpleJdbcParameter() )
     {
         if (expr != null) {
             if (signed) expr = new SignedExpression('-', expr);

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

@@ -4296,4 +4296,14 @@ public void testKeyWordExceptIssue1040() throws JSQLParserException {
     public void testKeyWordExceptIssue1044() throws JSQLParserException {
         assertSqlCanBeParsedAndDeparsed("SELECT SP_ID FROM ST_PR WHERE INSTR(',' || SP_OFF || ',', ',' || ? || ',') > 0");
     }
+    
+    @Test
+    public void testKeyWordExceptIssue1055() throws JSQLParserException {
+        assertSqlCanBeParsedAndDeparsed("SELECT INTERVAL ? DAY");
+    }
+    
+    @Test
+    public void testKeyWordExceptIssue1055_2() throws JSQLParserException {
+        assertSqlCanBeParsedAndDeparsed("SELECT * FROM mytable WHERE A.end_time > now() AND A.end_time <= date_add(now(), INTERVAL ? DAY)");
+    }
 }