Re: [SQL] best performance for simple dml

2011-06-26 Thread chester c young
two questions: I thought copy was for multiple rows - is its setup cost effective for one row? copy would also only be good for insert or select, not update - is this right? --- On Mon, 6/27/11, Pavel Stehule wrote: From: Pavel Stehule Subject: Re: [SQL] best performance for simple dml To: "che

Re: [SQL] best performance for simple dml

2011-06-26 Thread Pavel Stehule
Hello try it and you will see. Depends on network speed, hw speed. But the most fast is using a COPY API http://www.postgresql.org/docs/9.0/interactive/libpq-copy.html Regards Pavel Stehule 2011/6/27 chester c young > what is the best performance / best practices for frequently-used simple

[SQL] best performance for simple dml

2011-06-26 Thread chester c young
what is the best performance / best practices for frequently-used simple dml, for example, an insert 1. fast-interface 2. prepared statement calling "insert ..." with binary parameters 3. prepared statement calling "myfunc(..." with binary parameters; myfunc takes its arguments and performs an in