Commit 4f08c4b7 authored by unknown's avatar unknown
Browse files

Bug#4411 

  Fix for server hang bug


mysql-test/r/heap.result:
  Bug#4411
    Test for server hang bug
mysql-test/t/heap.test:
  Bug#4411
    Test for server hang bug
sql/opt_sum.cc:
  Bug#4411
    Allow code to exit the loop.
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted
parent 2a64371e

BitKeeper/etc/logging_ok

+1 −0
Original line number Diff line number Diff line
@@ -5,6 +5,7 @@ Administrator@fred. 
Greg@greg-laptop.

Miguel@light.local

Sinisa@sinisa.nasamreza.org

acurtis@pcgem.rdg.cyberkinetica.com

ahlentz@co3064164-a.rochd1.qld.optusnet.com.au

akishkin@work.mysql.com

antony@ltantony.dsl-verizon.net

mysql-test/r/heap.result

+10 −0
Original line number Diff line number Diff line
@@ -217,3 +217,13 @@ DELETE from t1 where a < 100; 
SELECT * from t1;

a

DROP TABLE t1;

CREATE TABLE `job_titles` (

`job_title_id` int(6) unsigned NOT NULL default '0',

`job_title` char(18) NOT NULL default '',

PRIMARY KEY  (`job_title_id`),

UNIQUE KEY `job_title_id` (`job_title_id`,`job_title`)

) TYPE=HEAP;

SELECT MAX(job_title_id) FROM job_titles;

MAX(job_title_id)

NULL

DROP TABLE job_titles;

mysql-test/t/heap.test

+14 −0
Original line number Diff line number Diff line
@@ -147,3 +147,17 @@ INSERT into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11); 
DELETE from t1 where a < 100;

SELECT * from t1;

DROP TABLE t1;



#

# Bug#4411 Server hangs when trying to SELECT MAX(id) from an empty HEAP table

#

CREATE TABLE `job_titles` (

  `job_title_id` int(6) unsigned NOT NULL default '0',

  `job_title` char(18) NOT NULL default '',

  PRIMARY KEY  (`job_title_id`),

  UNIQUE KEY `job_title_id` (`job_title_id`,`job_title`)

) TYPE=HEAP;



SELECT MAX(job_title_id) FROM job_titles;



DROP TABLE job_titles;

sql/opt_sum.cc

+1 −0
Original line number Diff line number Diff line
@@ -401,6 +401,7 @@ static bool find_range_key(TABLE_REF *ref, Field* field, COND *cond) 
      /* Can't use this key, for looking up min() or max(), end if last one */

      if (key == 1)

	return 0;

      key>>=1; idx++;

    }

    ref->key_length=0;

    ref->key=idx;