Bug #4609 Views: Delimited column name causes a crash
Submitted: 19 Jul 2004 0:16 Modified: 20 Jul 2004 23:22
Reporter: Trudy Pelzer Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server Severity:S1 (Critical)
Version:5.0.1-alpha-debug OS:Linux (SuSE 8.2)
Assigned to: Oleksandr Byelkin CPU Architecture:Any

[19 Jul 2004 0:16] Trudy Pelzer 
Description:
In ansi mode, if one creates a view (e.g. vt1) based on a single underlying table (e.g. t1) that has one column with a delimited name, the result of a SHOW CREATE VIEW statement is a crash:
ERROR 2013 (HY000): Lost connection to MySQL server during query

Note: If table t1's column name is not delimited with double quotes, the crash does not occur.

How to repeat:
set sql_mode = 'ansi';
create table t1 ("a*b" int);
create view vt1 as select "a*b" from t1;
show create view vt1;
ERROR 2013 (HY000): Lost connection to MySQL server during query
[19 Jul 2004 19:02] Aleksey Kishkin 
On slackware 9.0 also. I guess it's independent from linux distribution
[20 Jul 2004 7:49] Oleksandr Byelkin 
ChangeSet 
  1.1711 04/07/20 08:48:28 bell@sanja.is.com.ua +27 -0 
  mark subquery in the FROM clause like derived and quoate all identifiers (BUG#4609)
[20 Jul 2004 23:22] Oleksandr Byelkin 
Thank you for bugreport. Bugfix is pushed to our source repository