SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function ignore (children 1)
     ExpressionList (children 1)
      Identifier date
    Identifier s3
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t1
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier s2
     Literal \'bbb\'