Log Message:
-----------
Rearrange dblink's dblink_build_sql_insert() and related routines to open and
lock the target relation just once per SQL function call.  The original coding
obtained and released lock several times per call.  Aside from saving a
not-insignificant number of cycles, this eliminates possible race conditions
if someone tries to modify the relation's schema concurrently.  Also
centralize locking and permission-checking logic.

Problem noted while investigating a trouble report from Robert Voinea --- his
problem is still to be fixed, though.

Tags:
----
REL8_4_STABLE

Modified Files:
--------------
    pgsql/contrib/dblink:
        dblink.c (r1.82.2.5 -> r1.82.2.6)
        
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/dblink/dblink.c?r1=1.82.2.5&r2=1.82.2.6)

-- 
Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-committers

Reply via email to