SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function arrayElement (children 1)
     ExpressionList (children 2)
      Identifier ProfileEvents
      Literal \'FunctionExecute\'
    Function arrayElement (children 1)
     ExpressionList (children 2)
      Identifier ProfileEvents
      Literal \'TableFunctionExecute\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.query_log
   Function and (children 1)
    ExpressionList (children 4)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier type
       Literal \'QueryFinish\'
     Function like (children 1)
      ExpressionList (children 2)
       Identifier query
       Literal \'%ALTER TABLE mv_source%\'
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier current_database
       Function currentDatabase (children 1)
        ExpressionList
     Function greater (children 1)
      ExpressionList (children 2)
       Identifier event_time
       Function minus (children 1)
        ExpressionList (children 2)
         Function now (children 1)
          ExpressionList
         Function toIntervalMinute (children 1)
          ExpressionList (children 1)
           Literal UInt64_10
