src/bin/scripts/vacuumdb.c - hawq - Git at Google

 /*-------------------------------------------------------------------------
  *
  * vacuumdb
  *
  * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * $PostgreSQL: pgsql/src/bin/scripts/vacuumdb.c,v 1.26 2009/04/28 02:37:09 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */

 #include "postgres_fe.h"
 #include "common.h"


 static void vacuum_one_database(const char *dbname, bool full, bool verbose, bool analyze,
 					bool freeze, const char *table,
 					const char *host, const char *port,
 					const char *username, enum trivalue prompt_password,
 					const char *progname, bool echo);
 static void vacuum_all_databases(bool full, bool verbose, bool analyze, bool freeze,
 					 const char *host, const char *port,
 					 const char *username, enum trivalue prompt_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'},
 		{"no-password", no_argument, NULL, 'w'},
 		{"password", no_argument, NULL, 'W'},
 		{"echo", no_argument, NULL, 'e'},
 		{"quiet", no_argument, NULL, 'q'},
 		{"dbname", required_argument, NULL, 'd'},
 		{"analyze", no_argument, NULL, 'z'},
 		{"freeze", no_argument, NULL, 'F'},
 		{"all", no_argument, NULL, 'a'},
 		{"table", required_argument, NULL, 't'},
 		{"full", no_argument, NULL, 'f'},
 		{"verbose", no_argument, NULL, 'v'},
 		{NULL, 0, NULL, 0}
 	};

 	const char *progname;
 	int			optindex;
 	int			c;

 	const char *dbname = NULL;
 	char	   *host = NULL;
 	char	   *port = NULL;
 	char	   *username = NULL;
 	enum trivalue prompt_password = TRI_DEFAULT;
 	bool		echo = false;
 	bool		quiet = false;
 	bool		analyze = false;
 	bool		freeze = false;
 	bool		alldb = false;
 	char	   *table = NULL;
 	bool		full = false;
 	bool		verbose = false;

 	progname = get_progname(argv[0]);
 	set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pgscripts"));

 	handle_help_version_opts(argc, argv, "vacuumdb", help);

 	while ((c = getopt_long(argc, argv, "h:p:U:wWeqd:zaFt:fv", long_options, &optindex)) != -1)
 	{
 		switch (c)
 		{
 			case 'h':
 				host = optarg;
 				break;
 			case 'p':
 				port = optarg;
 				break;
 			case 'U':
 				username = optarg;
 				break;
 			case 'w':
 				prompt_password = TRI_NO;
 				break;
 			case 'W':
 				prompt_password = TRI_YES;
 				break;
 			case 'e':
 				echo = true;
 				break;
 			case 'q':
 				quiet = true;
 				break;
 			case 'd':
 				dbname = optarg;
 				break;
 			case 'z':
 				analyze = true;
 				break;
 			case 'F':
 				freeze = true;
 				break;
 			case 'a':
 				alldb = true;
 				break;
 			case 't':
 				table = optarg;
 				break;
 			case 'f':
 				full = true;
 				break;
 			case 'v':
 				verbose = true;
 				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 vacuum all databases and a specific one at the same time\n"),
 					progname);
 			exit(1);
 		}
 		if (table)
 		{
 			fprintf(stderr, _("%s: cannot vacuum a specific table in all databases\n"),
 					progname);
 			exit(1);
 		}

 		vacuum_all_databases(full, verbose, analyze, freeze,
 							 host, port, username, prompt_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);
 		}

 		vacuum_one_database(dbname, full, verbose, analyze, freeze, table,
 							host, port, username, prompt_password,
 							progname, echo);
 	}

 	exit(0);
 }


 static void
 vacuum_one_database(const char *dbname, bool full, bool verbose, bool analyze,
 					bool freeze, const char *table,
 					const char *host, const char *port,
 					const char *username, enum trivalue prompt_password,
 					const char *progname, bool echo)
 {
 	PQExpBufferData sql;

 	PGconn	   *conn;

 	initPQExpBuffer(&sql);

 	appendPQExpBuffer(&sql, "VACUUM");
 	if (full)
 		appendPQExpBuffer(&sql, " FULL");
 	if (verbose)
 		appendPQExpBuffer(&sql, " VERBOSE");
 	if (freeze)
 		appendPQExpBuffer(&sql, " FREEZE");
 	if (analyze)
 		appendPQExpBuffer(&sql, " ANALYZE");
 	if (table)
 		appendPQExpBuffer(&sql, " %s", table);
 	appendPQExpBuffer(&sql, ";\n");

 	conn = connectDatabase(dbname, host, port, username, prompt_password, progname);
 	if (!executeMaintenanceCommand(conn, sql.data, echo))
 	{
 		if (table)
 			fprintf(stderr, _("%s: vacuuming of table \"%s\" in database \"%s\" failed: %s"),
 					progname, table, dbname, PQerrorMessage(conn));
 		else
 			fprintf(stderr, _("%s: vacuuming of database \"%s\" failed: %s"),
 					progname, dbname, PQerrorMessage(conn));
 		PQfinish(conn);
 		exit(1);
 	}
 	PQfinish(conn);
 	termPQExpBuffer(&sql);
 }


 static void
 vacuum_all_databases(bool full, bool verbose, bool analyze, bool freeze,
 					 const char *host, const char *port,
 					 const char *username, enum trivalue prompt_password,
 					 const char *progname, bool echo, bool quiet)
 {
 	PGconn	   *conn;
 	PGresult   *result;
 	int			i;

 	conn = connectDatabase("postgres", host, port, username, prompt_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: vacuuming database \"%s\"\n"), progname, dbname);
 			fflush(stdout);
 		}

 		vacuum_one_database(dbname, full, verbose, analyze, freeze, NULL,
 							host, port, username, prompt_password,
 							progname, echo);
 	}

 	PQclear(result);
 }


 static void
 help(const char *progname)
 {
 	printf(_("%s cleans and analyzes a PostgreSQL database.\n\n"), progname);
 	printf(_("Usage:\n"));
 	printf(_("  %s [OPTION]... [DBNAME]\n"), progname);
 	printf(_("\nOptions:\n"));
 	printf(_("  -a, --all                       vacuum all databases\n"));
 	printf(_("  -d, --dbname=DBNAME             database to vacuum\n"));
 	printf(_("  -e, --echo                      show the commands being sent to the server\n"));
 	printf(_("  -f, --full                      do full vacuuming\n"));
 	printf(_("  -F, --freeze                    freeze row transaction information\n"));
 	printf(_("  -q, --quiet                     don't write any messages\n"));
 	printf(_("  -t, --table='TABLE'             vacuum specific table only\n"));
 	printf(_("  -v, --verbose                   write a lot of output\n"));
 	printf(_("  -z, --analyze                   update optimizer hints\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, --no-password         never prompt for password\n"));
 	printf(_("  -W, --password            force password prompt\n"));
 	printf(_("\nRead the description of the SQL command VACUUM for details.\n"));
 	printf(_("\nReport bugs to <pgsql-bugs@postgresql.org>.\n"));
 }
	/*-------------------------------------------------------------------------
	*
	* vacuumdb
	*
	* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
	* Portions Copyright (c) 1994, Regents of the University of California
	*
	* $PostgreSQL: pgsql/src/bin/scripts/vacuumdb.c,v 1.26 2009/04/28 02:37:09 momjian Exp $
	*
	*-------------------------------------------------------------------------
	*/

	#include "postgres_fe.h"
	#include "common.h"


	static void vacuum_one_database(const char *dbname, bool full, bool verbose, bool analyze,
	bool freeze, const char *table,
	const char host, const char port,
	const char *username, enum trivalue prompt_password,
	const char *progname, bool echo);
	static void vacuum_all_databases(bool full, bool verbose, bool analyze, bool freeze,
	const char host, const char port,
	const char *username, enum trivalue prompt_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'},
	{"no-password", no_argument, NULL, 'w'},
	{"password", no_argument, NULL, 'W'},
	{"echo", no_argument, NULL, 'e'},
	{"quiet", no_argument, NULL, 'q'},
	{"dbname", required_argument, NULL, 'd'},
	{"analyze", no_argument, NULL, 'z'},
	{"freeze", no_argument, NULL, 'F'},
	{"all", no_argument, NULL, 'a'},
	{"table", required_argument, NULL, 't'},
	{"full", no_argument, NULL, 'f'},
	{"verbose", no_argument, NULL, 'v'},
	{NULL, 0, NULL, 0}
	};

	const char *progname;
	int optindex;
	int c;

	const char *dbname = NULL;
	char *host = NULL;
	char *port = NULL;
	char *username = NULL;
	enum trivalue prompt_password = TRI_DEFAULT;
	bool echo = false;
	bool quiet = false;
	bool analyze = false;
	bool freeze = false;
	bool alldb = false;
	char *table = NULL;
	bool full = false;
	bool verbose = false;

	progname = get_progname(argv[0]);
	set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pgscripts"));

	handle_help_version_opts(argc, argv, "vacuumdb", help);

	while ((c = getopt_long(argc, argv, "h:p:U:wWeqd:zaFt:fv", long_options, &optindex)) != -1)
	{
	switch (c)
	{
	case 'h':
	host = optarg;
	break;
	case 'p':
	port = optarg;
	break;
	case 'U':
	username = optarg;
	break;
	case 'w':
	prompt_password = TRI_NO;
	break;
	case 'W':
	prompt_password = TRI_YES;
	break;
	case 'e':
	echo = true;
	break;
	case 'q':
	quiet = true;
	break;
	case 'd':
	dbname = optarg;
	break;
	case 'z':
	analyze = true;
	break;
	case 'F':
	freeze = true;
	break;
	case 'a':
	alldb = true;
	break;
	case 't':
	table = optarg;
	break;
	case 'f':
	full = true;
	break;
	case 'v':
	verbose = true;
	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 vacuum all databases and a specific one at the same time\n"),
	progname);
	exit(1);
	}
	if (table)
	{
	fprintf(stderr, _("%s: cannot vacuum a specific table in all databases\n"),
	progname);
	exit(1);
	}

	vacuum_all_databases(full, verbose, analyze, freeze,
	host, port, username, prompt_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);
	}

	vacuum_one_database(dbname, full, verbose, analyze, freeze, table,
	host, port, username, prompt_password,
	progname, echo);
	}

	exit(0);
	}


	static void
	vacuum_one_database(const char *dbname, bool full, bool verbose, bool analyze,
	bool freeze, const char *table,
	const char host, const char port,
	const char *username, enum trivalue prompt_password,
	const char *progname, bool echo)
	{
	PQExpBufferData sql;

	PGconn *conn;

	initPQExpBuffer(&sql);

	appendPQExpBuffer(&sql, "VACUUM");
	if (full)
	appendPQExpBuffer(&sql, " FULL");
	if (verbose)
	appendPQExpBuffer(&sql, " VERBOSE");
	if (freeze)
	appendPQExpBuffer(&sql, " FREEZE");
	if (analyze)
	appendPQExpBuffer(&sql, " ANALYZE");
	if (table)
	appendPQExpBuffer(&sql, " %s", table);
	appendPQExpBuffer(&sql, ";\n");

	conn = connectDatabase(dbname, host, port, username, prompt_password, progname);
	if (!executeMaintenanceCommand(conn, sql.data, echo))
	{
	if (table)
	fprintf(stderr, _("%s: vacuuming of table \"%s\" in database \"%s\" failed: %s"),
	progname, table, dbname, PQerrorMessage(conn));
	else
	fprintf(stderr, _("%s: vacuuming of database \"%s\" failed: %s"),
	progname, dbname, PQerrorMessage(conn));
	PQfinish(conn);
	exit(1);
	}
	PQfinish(conn);
	termPQExpBuffer(&sql);
	}


	static void
	vacuum_all_databases(bool full, bool verbose, bool analyze, bool freeze,
	const char host, const char port,
	const char *username, enum trivalue prompt_password,
	const char *progname, bool echo, bool quiet)
	{
	PGconn *conn;
	PGresult *result;
	int i;

	conn = connectDatabase("postgres", host, port, username, prompt_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: vacuuming database \"%s\"\n"), progname, dbname);
	fflush(stdout);
	}

	vacuum_one_database(dbname, full, verbose, analyze, freeze, NULL,
	host, port, username, prompt_password,
	progname, echo);
	}

	PQclear(result);
	}


	static void
	help(const char *progname)
	{
	printf(_("%s cleans and analyzes a PostgreSQL database.\n\n"), progname);
	printf(_("Usage:\n"));
	printf(_(" %s [OPTION]... [DBNAME]\n"), progname);
	printf(_("\nOptions:\n"));
	printf(_(" -a, --all vacuum all databases\n"));
	printf(_(" -d, --dbname=DBNAME database to vacuum\n"));
	printf(_(" -e, --echo show the commands being sent to the server\n"));
	printf(_(" -f, --full do full vacuuming\n"));
	printf(_(" -F, --freeze freeze row transaction information\n"));
	printf(_(" -q, --quiet don't write any messages\n"));
	printf(_(" -t, --table='TABLE' vacuum specific table only\n"));
	printf(_(" -v, --verbose write a lot of output\n"));
	printf(_(" -z, --analyze update optimizer hints\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, --no-password never prompt for password\n"));
	printf(_(" -W, --password force password prompt\n"));
	printf(_("\nRead the description of the SQL command VACUUM for details.\n"));
	printf(_("\nReport bugs to <pgsql-bugs@postgresql.org>.\n"));
	}