Hi,
I have a connection that is created with "prepareThreshold=1" in the
connection string. I use a prepared statement that I fill with
addbatch() and that I execute with executeBatch() (for full source: see
"application.java" attachment).
Tracing all statements in my PostgreSQL logs I see (for the full log:
see "postgresql.log" attachement):
LOG: statement: PREPARE S_2 AS update prototype.customers set title=
$1 , defaultcurrency=$2, defaulttermsofdelivery=$3 ,
defaulttermsofpayment=$4 where customernumber=$5
LOG: statement: <BIND>
LOG: statement: EXECUTE <unnamed> [PREPARE: update
prototype.customers set title=$1 , defaultcurrency=$2, defaultter
msofdelivery=$3, defaulttermsofpayment=$4 where customernumber=$5]
LOG: duration: 773.841 ms
LOG: statement: <BIND>
LOG: statement: EXECUTE <unnamed> [PREPARE: update
prototype.customers set title=$1 , defaultcurrency=$2, defaultter
msofdelivery=$3, defaulttermsofpayment=$4 where customernumber=$5]
LOG: duration: 377.981 ms
Does this output mean that the prepared statement with the name "S_2" is
not used in the following 2 EXECUTE statements and that therefor each
execute statement is planned again?
BTW: I used PostgreSQL 8.1 and PostgreSQL-8.1-404.jdbc3.jar.
TIA
--
Groeten,
Joost Kraaijeveld
Askesis B.V.
Molukkenstraat 14
6524NB Nijmegen
tel: 024-3888063 / 06-51855277
fax: 024-3608416
e-mail: J.Kraaijeveld@Askesis.nl
web: www.askesis.nl
