Re: [HACKERS] memory destruction in 6.4 - Mailing list pgsql-hackers

From Tatsuo Ishii
Subject Re: [HACKERS] memory destruction in 6.4
Date
Msg-id 199812080945.SAA06847@srapc451.sra.co.jp
Whole thread Raw
In response to Re: [HACKERS] memory destruction in 6.4  (Constantin Teodorescu <teo@flex.ro>)
List pgsql-hackers
>Tatsuo Ishii wrote:
>> 
>> While investigating a user's complaint, I have found some memory
>> destructions in 6.4 source using purify.
>> 
>> (1) parser/gram.y:fmtId()
>> 
>> It writes n+3 bytes into n+1 byte-long memory area if mixed case or
>> non-ascii identifiers given.
>
>Could that be also the cause for the two bugs that I have been reported
>some time ago occuring when object names contain spaces ?
>
>PostgreSQL 6.4 on RedHat Linux i386, 2.0.36 Kernel
>
>THE FIRST ONE
>=============
>test=>create table students (id int4, name text); 
>CREATE
>test=> create view "my view" as select * from students;
>CREATE
>test=> select * from "my view";
>ERROR:  nodeRead: Bad type 0 
>
>
>THE SECOND ONE
>==============
>test=> create sequence student_id;
>CREATE
>test=> create table "my students" (id int4 default
>nextval('student_id'), name text);
>ERROR:  my: Table does not exist.

Sorry, but my patches seem not to fix your problems.
--
Tatsuo Ishii


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