#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <sys/types.h>
#include "libpq-fe.h"

static void
exit_nicely(PGconn *conn)
{
	PQfinish(conn);
	exit(1);
}

main()
{
	char *conninfo = "port=11003 dbname=test";
	PGconn	   *conn;
	PGresult   *res;
	const char *paramValues[1];

	conn = PQconnectdb(conninfo);
	if (PQstatus(conn) != CONNECTION_OK)
	{
		fprintf(stderr, "Connection to database failed: %s",
				PQerrorMessage(conn));
		exit_nicely(conn);
	}

	paramValues[0] = "2";

	fprintf(stderr, "start #1 query\n");
	PQsendQueryParams(conn,
					  "SELECT pg_sleep($1::int)",
					  1,		/* one param */
					  NULL,	/* let the backend deduce param type */
					  paramValues,
					  NULL,	/* don't need param lengths since text */
					  NULL,	/* default to all text params */
					  0);		/* ask for text results */

	fprintf(stderr, "end #1 query\n");

	sleep(10);

	exit(0);
}