From: | Alan Stange <stange(at)rentec(dot)com> |
---|---|
To: | pgsql-jdbc(at)postgresql(dot)org |
Subject: | setFetchSize question |
Date: | 2005-02-25 16:12:38 |
Message-ID: | 421F4E76.508@rentec.com |
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Thread: | |
Lists: | pgsql-jdbc |
Hello all,
I just noticed something and I thought I'd ask:
When reading large chunks of data in the 7.4 JDBC client I would code
something like this:
conn.setAutoCommit(false);
st.setFetchDirection(ResultSet.FETCH_FORWARD);
st.setFetchSize(1000);
st.executeQuery("select * from foo");
which would result in queries to the postgresql server like this:
DECLARE JDBC_CURS_588 CURSOR FOR select * from foo; fetch forward 1000
from JDBC_CURS_588;
with subsequent fetch forward queries being executed as the full result
set is pulled in.
In the 8.0 driver I don't see this happening. I see only the "select *
from foo" query in the postgresql server log.
Is the query result still being sent in batch chunks of 1000 rows, but
using a different mechanism?
Thanks!
-- Alan
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