Thread: Changed error message for blocks by prepared transactions
Hello,
the small attached patch changes the error message for a blocked
database in case there are prepared transactions. The original message
"accessed by other users" is misleading.
Example:
----- snip -----
postgres=# begin;
BEGIN
postgres=# prepare transaction 'abc';
PREPARE TRANSACTION
postgres=# \c template1
psql (8.4rc1)
Sie sind jetzt verbunden mit der Datenbank »template1«.
template1=# alter database postgres rename to test;
ERROR: database "postgres" is being blocked by prepared transactions
DETAIL: There are 1 prepared transaction(s) using the database.
----- snip -----
Translation still pending, how to add new messages to the .po files?
Kind regards
--
Andreas 'ads' Scherbaum
German PostgreSQL User Group
European PostgreSQL User Group - Board of Directors
Volunteer Regional Contact, Germany - PostgreSQL Project
PGDay.eu 2009 in Paris, Nov. 6/7, http://www.pgday.eu/
Attachment
"Andreas 'ads' Scherbaum" <adsmail@wars-nicht.de> writes:
> the small attached patch changes the error message for a blocked
> database in case there are prepared transactions.
Isn't this duplicative of the errdetail_busy_db code? And anyway
I do not see a reason not to consider prepared transactions as
"other users".
regards, tom lane
On Mon, 22 Jun 2009 19:24:28 -0400 Tom Lane wrote: > "Andreas 'ads' Scherbaum" <adsmail@wars-nicht.de> writes: > > the small attached patch changes the error message for a blocked > > database in case there are prepared transactions. > > Isn't this duplicative of the errdetail_busy_db code? And anyway > I do not see a reason not to consider prepared transactions as > "other users". Because you know the details. Most other users check pg_stat_activity just to find out there is no other user connected. A prepared transaction is not a connected user, so the error message is still misleading. You are right with the errdetail_busy_db(), but that's only true for 8.4, not for earlier versions. In addition that's only true if you haven't supressed the hints like some scripts do (-q as example). Bye -- Andreas 'ads' Scherbaum German PostgreSQL User Group European PostgreSQL User Group - Board of Directors Volunteer Regional Contact, Germany - PostgreSQL Project PGDay.eu 2009 in Paris, Nov. 6/7, http://www.pgday.eu/