Hello,
I'm working on a project where libpq-C is envolved. We
have several background processes keep querying
certain data from database and send them out as ip
packets. With libpq-C interface, I have to use
res = PQexec(conn, "DECLARE myportal CURSOR FOR select
* from pg_database");
and then res = PQexec(conn, "FETCH ALL in myportal");
to get the data.
I found when our database has more and more data, res
= PQexec(conn, "FETCH ALL in myportal"); cost more and
more time, much more than
res = PQexec(conn, "DECLARE myportal CURSOR FOR select
* from pg_database");
and make our sending packet rate extremely low. We get
into big problems here.
I wonder if there is other faster way ( I mean other
than FETCH ALL command) to get data from database with
libpq-C, or If you have a patch to fix this problem.
Hope to hear from you soon.
Best Regards
jing
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