Erik Jones wrote:
This may be a dupe. I sent and had some issues with my mail client and
afterwards it was sitting all alone in my outbox, if you've already seen
this, sorry for the resend...
On Mar 14, 2007, at 2:08 PM, Randall Smith wrote:
Hi,
I'm attempting to process a query written in the form:
SELECT fields FROM table WHERE conditions FOR UPDATE OF field_name
when Postgresql supports:
SELECT fields FROM table WHERE conditions FOR UPDATE OF table_name
I'd like to remove the OF clause in the case only one table is queried.
Anyone know of a solution to this?
The OF clause is optional in postrges. The semantics are thus:
Without OF clause: lock all rows in all tables in the from clause that
contribute data to the rows returned by your select statement. So, if
I'm understanding what you're asking here, just chop off the OF clause
and you're set.
With OF clause: lock only rows from the specified tables that contribute
data to the rows returned by your select statement.
There isn't any way that I know of to lock specific columns on a table
as it seems the first query you listed is doing.
erik jones <erik@xxxxxxxxxx <mailto:erik@xxxxxxxxxx>>
sofware developer
615-296-0838
emma(r)
I'm at a loss as to how to remove the OF clause at the server. It it
possible to do it with a rule? I don't have control over the
application and it's written to work with Oracle. I do have control
over the JDBC driver, so maybe I should look for a solution there.
Maybe a wrapper or something.
Randall
