Commit fe94b6bf authored by unknown's avatar unknown
Browse files

A test case for Bug#14845 "mysql_stmt_fetch returns MYSQL_NO_DATA 

when COUNT(*) is 0". The bug itself cannot be repeated.


mysql-test/r/sp.result:
  Test results were fixed (Bug#14845)
mysql-test/t/sp.test:
  An SQL language test case for Bug#14845
tests/mysql_client_test.c:
  A test case for Bug#14845
parent 27b4c2a5

mysql-test/r/sp.result

+19 −0
Original line number Diff line number Diff line
@@ -3648,4 +3648,23 @@ call bug14723();; 
42

drop function bug14723|

drop procedure bug14723|

create procedure bug14845()

begin

declare a char(255);

declare done int default 0;

declare c cursor for select count(*) from t1 where 1 = 0;

declare continue handler for sqlstate '02000' set done = 1;

open c;

repeat

fetch c into a;

if not done then

select a;

end if;

until done end repeat;

close c;

end|

call bug14845()|

a

0

drop procedure bug14845|

drop table t1,t2;

mysql-test/t/sp.test

+21 −0
Original line number Diff line number Diff line
@@ -4572,6 +4572,27 @@ delimiter |;; 
drop function bug14723|

drop procedure bug14723|



#

# Bug#14845 "mysql_stmt_fetch returns MYSQL_NO_DATA when COUNT(*) is 0"

# Check that when fetching from a cursor, COUNT(*) works properly.

#

create procedure bug14845()

begin

  declare a char(255);

  declare done int default 0;

  declare c cursor for select count(*) from t1 where 1 = 0;

  declare continue handler for sqlstate '02000' set done = 1;

  open c;

  repeat

    fetch c into a;

    if not done then

      select a;

    end if;

  until done end repeat;

  close c;

end|

call bug14845()|

drop procedure bug14845|



#

# BUG#NNNN: New bug synopsis

tests/mysql_client_test.c

+44 −0
Original line number Diff line number Diff line
@@ -14546,6 +14546,49 @@ static void test_bug13524() 
  myquery(rc);

}



/*

  Bug#14845 "mysql_stmt_fetch returns MYSQL_NO_DATA when COUNT(*) is 0"

*/



static void test_bug14845()

{

  MYSQL_STMT *stmt;

  int rc;

  const ulong type= CURSOR_TYPE_READ_ONLY;

  const char *query= "select count(*) from t1 where 1 = 0";



  myheader("test_bug14845");



  rc= mysql_query(mysql, "drop table if exists t1");

  myquery(rc);

  rc= mysql_query(mysql, "create table t1 (id int(11) default null, "

                         "name varchar(20) default null)"

                         "engine=MyISAM DEFAULT CHARSET=utf8");

  myquery(rc);

  rc= mysql_query(mysql, "insert into t1 values (1,'abc'),(2,'def')");

  myquery(rc);



  stmt= mysql_stmt_init(mysql);

  rc= mysql_stmt_attr_set(stmt, STMT_ATTR_CURSOR_TYPE, (const void*) &type);

  check_execute(stmt, rc);



  rc= mysql_stmt_prepare(stmt, query, strlen(query));

  check_execute(stmt, rc);



  rc= mysql_stmt_execute(stmt);

  check_execute(stmt, rc);



  rc= mysql_stmt_fetch(stmt);

  DIE_UNLESS(rc == 0);



  rc= mysql_stmt_fetch(stmt);

  DIE_UNLESS(rc == MYSQL_NO_DATA);



  /* Cleanup */

  mysql_stmt_close(stmt);

  rc= mysql_query(mysql, "drop table t1");

  myquery(rc);

}



/*

  Read and parse arguments and MySQL options from my.cnf
@@ -14805,6 +14848,7 @@ static struct my_tests_st my_tests[]= { 
  { "test_bug14210", test_bug14210 },

  { "test_bug13488", test_bug13488 },

  { "test_bug13524", test_bug13524 },

  { "test_bug14845", test_bug14845 },

  { 0, 0 }

};