SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier tab
   Function or (children 1)
    ExpressionList (children 2)
     Function and (children 1)
      ExpressionList (children 2)
       Function equals (children 1)
        ExpressionList (children 2)
         Literal UInt64_1
         Literal UInt64_1
       Function equals (children 1)
        ExpressionList (children 2)
         Identifier col1
         Identifier col1
     Function and (children 1)
      ExpressionList (children 2)
       Literal UInt64_0
       Function equals (children 1)
        ExpressionList (children 2)
         Identifier col2
         Literal NULL
