Re: " for read only" clause appended for safety when UseDeclareFetch=1

Hi Jack,

Jack Wilson wrote:
> 
> I've found the change made in version psqlodbc 8.2.0501 and later 
> (reference: 
> http://archives.postgresql.org/pgsql-committers/2007-10/msg00420.php)
> 
> 4. Be more careful about <for locking clause> in UseDeclareFetch mode.
>   Add missing? "for read only" clause for read only queries for 8.3
>   or later servers for safety.
> 
> Here is a cvs link to the actual code change:
>
http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/convert.c.diff?r1=1.163&r2=1.164

> 
> 
> This change breaks existing code that sends a single sql statement with 
> a trailing semicolon. What happens is the odbc driver sees 
> UseDeclareFetch=1 and for sql statements appends " for read only" at the

> end of the statement. This is fine except for the situation where the 
> statement has a trailing semicolon. In that case the statement ends up 
> being (say) "select blah blah; for read only", which gives a syntax 
> error like:
> 
> ERROR: syntax error at or near "for"
> SQL state: 42601
> 
> Setting UseDeclareFetch=0 fixes the problem, or using psqlodbc 8.2.0500 
> or earlier, or using PostgreSQL 8.2.6--any one of these prevents the " 
> for read only" from being appended to the end of the sql statement.

Oops my fault.
Unfortunately I'm very busy and please wait for a while.

regards,
Hiro**** Inoue


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