SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Identifier database
    Identifier max_log_ptr
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.database_replicas
   Function and (children 1)
    ExpressionList (children 2)
     Function like (children 1)
      ExpressionList (children 2)
       Identifier database
       Literal \'db_%\'
     Function greater (children 1)
      ExpressionList (children 2)
       Identifier max_log_ptr
       Literal UInt64_1
