The JDBC driver's regression test suite has revealed a change in behavior
introduced by the hot standy patch. Previously when a client sent a
cancel request on an idle connection, nothing happened. Now it sends an
error message "ERROR: canceling statement due to user request". This
confuses the driver's protocol handling and it thinks that the error
message is for the next statement issued.
Attached is a test case.
Kris Jurka
import java.sql.*;
public class Cancel {
public static void main(String args[]) throws Exception {
Class.forName("org.postgresql.Driver");
Connection conn =
DriverManager.getConnection("jdbc:postgresql://localhost:5851/jurka", "jurka",
"");
Statement stmt = conn.createStatement();
stmt.cancel();
ResultSet rs = stmt.executeQuery("SELECT 1");
}
}
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