How to use

sendExecute

method

in

org.postgresql.core.v3.QueryExecutorImpl

public synchronized void fetch(ResultCursor cursor, ResultHandler handler, int fetchSize)
  throws SQLException {
 waitOnLock();
 final Portal portal = (Portal) cursor;
 // Insert a ResultHandler that turns bare command statuses into empty datasets
 // (if the fetch returns no rows, we see just a CommandStatus..)
 final ResultHandler delegateHandler = handler;
 handler = new ResultHandlerDelegate(delegateHandler) {
  public void handleCommandStatus(String status, int updateCount, long insertOID) {
   handleResultRows(portal.getQuery(), null, new ArrayList<byte[][]>(), null);
  }
 };
 // Now actually run it.
 try {
  processDeadParsedQueries();
  processDeadPortals();
  sendExecute(portal.getQuery(), portal, fetchSize);
  sendSync();
  processResults(handler, 0);
  estimatedReceiveBufferBytes = 0;
 } catch (IOException e) {
  abort();
  handler.handleError(
    new PSQLException(GT.tr("An I/O error occurred while sending to the backend."),
      PSQLState.CONNECTION_FAILURE, e));
 }
 handler.handleCompletion();
}

processDeadPortals();
sendExecute(portal.getQuery(), portal, fetchSize);
sendSync();

  sendDescribePortal(query, portal);
sendExecute(query, portal, rows);

sendExecute(query, portal, rows);

processDeadPortals();
sendExecute(portal.getQuery(), portal, fetchSize);
sendSync();

processDeadPortals();
sendExecute(portal.getQuery(), portal, fetchSize);
sendSync();

  sendDescribePortal(query, portal);
sendExecute(query, portal, rows);

  sendDescribePortal(query, portal);
sendExecute(query, portal, rows);