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/*-------------------------------------------------------------------------
*
* clusterdb
*
* Portions Copyright (c) 2002-2007, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/bin/scripts/clusterdb.c,v 1.18 2007/06/04 10:02:40 petere Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres_fe.h"
#include "common.h"
#include "dumputils.h"
static void cluster_one_database(const char *dbname, const char *table,
const char *host, const char *port,
const char *username, bool password,
const char *progname, bool echo);
static void cluster_all_databases(const char *host, const char *port,
const char *username, bool password,
const char *progname, bool echo, bool quiet);
static void help(const char *progname);
int
main(int argc, char *argv[])
{
static struct option long_options[] = {
{"host", required_argument, NULL, 'h'},
{"port", required_argument, NULL, 'p'},
{"username", required_argument, NULL, 'U'},
{"password", no_argument, NULL, 'W'},
{"echo", no_argument, NULL, 'e'},
{"quiet", no_argument, NULL, 'q'},
{"dbname", required_argument, NULL, 'd'},
{"all", no_argument, NULL, 'a'},
{"table", required_argument, NULL, 't'},
{NULL, 0, NULL, 0}
};
const char *progname;
int optindex;
int c;
const char *dbname = NULL;
char *host = NULL;
char *port = NULL;
char *username = NULL;
bool password = false;
bool echo = false;
bool quiet = false;
bool alldb = false;
char *table = NULL;
progname = get_progname(argv[0]);
set_pglocale_pgservice(argv[0], "pgscripts");
handle_help_version_opts(argc, argv, "clusterdb", help);
while ((c = getopt_long(argc, argv, "h:p:U:Weqd:at:", long_options, &optindex)) != -1)
{
switch (c)
{
case 'h':
host = optarg;
break;
case 'p':
port = optarg;
break;
case 'U':
username = optarg;
break;
case 'W':
password = true;
break;
case 'e':
echo = true;
break;
case 'q':
quiet = true;
break;
case 'd':
dbname = optarg;
break;
case 'a':
alldb = true;
break;
case 't':
table = optarg;
break;
default:
fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
exit(1);
}
}
switch (argc - optind)
{
case 0:
break;
case 1:
dbname = argv[optind];
break;
default:
fprintf(stderr, _("%s: too many command-line arguments (first is \"%s\")\n"),
progname, argv[optind + 1]);
fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
exit(1);
}
setup_cancel_handler();
if (alldb)
{
if (dbname)
{
fprintf(stderr, _("%s: cannot cluster all databases and a specific one at the same time\n"),
progname);
exit(1);
}
if (table)
{
fprintf(stderr, _("%s: cannot cluster a specific table in all databases\n"),
progname);
exit(1);
}
cluster_all_databases(host, port, username, password,
progname, echo, quiet);
}
else
{
if (dbname == NULL)
{
if (getenv("PGDATABASE"))
dbname = getenv("PGDATABASE");
else if (getenv("PGUSER"))
dbname = getenv("PGUSER");
else
dbname = get_user_name(progname);
}
cluster_one_database(dbname, table,
host, port, username, password,
progname, echo);
}
exit(0);
}
static void
cluster_one_database(const char *dbname, const char *table,
const char *host, const char *port,
const char *username, bool password,
const char *progname, bool echo)
{
PQExpBufferData sql;
PGconn *conn;
initPQExpBuffer(&sql);
appendPQExpBuffer(&sql, "CLUSTER");
if (table)
appendPQExpBuffer(&sql, " %s", fmtId(table));
appendPQExpBuffer(&sql, ";\n");
conn = connectDatabase(dbname, host, port, username, password, progname);
if (!executeMaintenanceCommand(conn, sql.data, echo))
{
if (table)
fprintf(stderr, _("%s: clustering of table \"%s\" in database \"%s\" failed: %s"),
progname, table, dbname, PQerrorMessage(conn));
else
fprintf(stderr, _("%s: clustering of database \"%s\" failed: %s"),
progname, dbname, PQerrorMessage(conn));
PQfinish(conn);
exit(1);
}
PQfinish(conn);
termPQExpBuffer(&sql);
}
static void
cluster_all_databases(const char *host, const char *port,
const char *username, bool password,
const char *progname, bool echo, bool quiet)
{
PGconn *conn;
PGresult *result;
int i;
conn = connectDatabase("postgres", host, port, username, password, progname);
result = executeQuery(conn, "SELECT datname FROM pg_database WHERE datallowconn ORDER BY 1;", progname, echo);
PQfinish(conn);
for (i = 0; i < PQntuples(result); i++)
{
char *dbname = PQgetvalue(result, i, 0);
if (!quiet)
{
printf(_("%s: clustering database \"%s\"\n"), progname, dbname);
fflush(stdout);
}
cluster_one_database(dbname, NULL,
host, port, username, password,
progname, echo);
}
PQclear(result);
}
static void
help(const char *progname)
{
printf(_("%s clusters all previously clustered tables in a database.\n\n"), progname);
printf(_("Usage:\n"));
printf(_(" %s [OPTION]... [DBNAME]\n"), progname);
printf(_("\nOptions:\n"));
printf(_(" -a, --all cluster all databases\n"));
printf(_(" -d, --dbname=DBNAME database to cluster\n"));
printf(_(" -t, --table=TABLE cluster specific table only\n"));
printf(_(" -e, --echo show the commands being sent to the server\n"));
printf(_(" -q, --quiet don't write any messages\n"));
printf(_(" --help show this help, then exit\n"));
printf(_(" --version output version information, then exit\n"));
printf(_("\nConnection options:\n"));
printf(_(" -h, --host=HOSTNAME database server host or socket directory\n"));
printf(_(" -p, --port=PORT database server port\n"));
printf(_(" -U, --username=USERNAME user name to connect as\n"));
printf(_(" -W, --password prompt for password\n"));
printf(_("\nRead the description of the SQL command CLUSTER for details.\n"));
printf(_("\nReport bugs to <pgsql-bugs@postgresql.org>.\n"));
}
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