SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function trimBoth (children 1)
     ExpressionList (children 1)
      Identifier explain
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Asterisk
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             Function viewExplain (children 1)
              ExpressionList (children 3)
               Literal \'EXPLAIN\'
               Literal \'actions = 1\'
               Subquery (children 1)
                SelectWithUnionQuery (children 1)
                 ExpressionList (children 1)
                  SelectQuery (children 4)
                   ExpressionList (children 2)
                    Literal \'Test hasToken + length(text):\'
                    Function count (children 1)
                     ExpressionList
                   TablesInSelectQuery (children 1)
                    TablesInSelectQueryElement (children 1)
                     TableExpression (children 1)
                      TableIdentifier tab
                   Function or (children 1)
                    ExpressionList (children 2)
                     Function hasToken (children 1)
                      ExpressionList (children 2)
                       Identifier text
                       Literal \'Alick\'
                     Function greater (children 1)
                      ExpressionList (children 2)
                       Function length (children 1)
                        ExpressionList (children 1)
                         Identifier text
                       Literal UInt64_1
                   Set
   Function like (children 1)
    ExpressionList (children 2)
     Identifier explain
     Literal \'%Filter column:%\'
