SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 5)
    Identifier id
    Identifier haystack
    Literal \'l\'
    Identifier replacement
    Function replaceRegexpAll (children 1)
     ExpressionList (children 3)
      Literal \'Hello World\'
      Literal \'l\'
      Identifier replacement
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_tab
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier id
