ivan.hou wrote:
> how do u know this theory ? 1 + (2 * number of columns in the SELECT)
> just try & test?
I did this at first, yes. I changed log_statement to all, reload the
configuration, and voila. I've seen that pgAdmin's query tool executes
this number of queries to display the result.
> or have any document?
After I did a few tests, I get a look at the source. There's no other
documents, as far as I know, about this.
Regards.
--
Guillaume.
http://www.postgresqlfr.org
http://dalibo.com