Thread: connection or query affected
please cc me If I am using some server side langauge to access Postgres - php, python, perl, asp, if I make a connection, do the following actions affect the connection, or the individual query that contains them: turn off autocommit start transaction commit transaction SET schema
* Dennis Gearon <gearond@fireserve.net> [2004-10-12 08:13:07 -0700]: > turn off autocommit Per connection. > start transaction > commit transaction They're statements themselves that change the state of the connection. You start a transaction, run your queries, and then commit/rollback. > SET schema It depends if you're setting your search path for subsequent queries which would be tracked per connection or you're actually prepending the schema where the table exists in the query. E.g. $dbh->query("SET search_path='my_schema'"); - or - $dbh->query('SELECT foo FROM my_schema.bar WHERE active'); -- Steven Klassen - Lead Programmer Command Prompt, Inc. - http://www.commandprompt.com/ PostgreSQL Replication & Support Services, (503) 667-4564
Steven Klassen wrote: > * Dennis Gearon <gearond@fireserve.net> [2004-10-12 08:13:07 -0700]: > > >> turn off autocommit > > > Per connection. > > >> start transaction >> commit transaction > > > They're statements themselves that change the state of the > connection. You start a transaction, run your queries, and then > commit/rollback. > > >> SET schema > > > It depends if you're setting your search path for subsequent queries > which would be tracked per connection or you're actually prepending > the schema where the table exists in the query. > > E.g. > > $dbh->query("SET search_path='my_schema'"); > > - or - > > $dbh->query('SELECT foo FROM my_schema.bar WHERE active'); > Thanks, I meant the first of the two schema related queries above.