For stored functions INDEX_STATISTICS.QUERIES only counts the top-most query

SET @userstat.save= @@userstat;

set global userstat= 1;

create table t (a int, key(a)) engine=MyISAM;

insert into t values (1),(2),(3),(4),(1);

--delimiter $

create function f() returns int

begin

  declare x int default 0;

  declare y int default 0;

  select count(*) into x from t where a = 1;

  select count(*) into y from t where a = 2;

  return x + y;

end $

--delimiter ;

flush index_statistics;

select f() + f();

show index_statistics;

# Cleanup

set global userstat= @userstat.save;

drop table t;

drop function f;

show index_statistics;

Table_schema	Table_name	Index_name	Rows_read	Queries

test	t	a	6	1