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Sourcecode: postgresql-8.4 version File versions

reindexdb.c

/*-------------------------------------------------------------------------
 *
 * reindexdb
 *
 * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
 *
 * $PostgreSQL$
 *
 *-------------------------------------------------------------------------
 */

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


static void reindex_one_database(const char *name, const char *dbname,
                               const char *type, const char *host,
                               const char *port, const char *username,
                               enum trivalue prompt_password, const char *progname,
                               bool echo);
static void reindex_all_databases(const char *host, const char *port,
                                const char *username, enum trivalue prompt_password,
                                const char *progname, bool echo,
                                bool quiet);
static void reindex_system_catalogs(const char *dbname,
                                    const char *host, const char *port,
                                    const char *username, enum trivalue prompt_password,
                                    const char *progname, bool echo);
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'},
            {"all", no_argument, NULL, 'a'},
            {"system", no_argument, NULL, 's'},
            {"table", required_argument, NULL, 't'},
            {"index", required_argument, NULL, 'i'},
            {NULL, 0, NULL, 0}
      };

      const char *progname;
      int               optindex;
      int               c;

      const char *dbname = NULL;
      const char *host = NULL;
      const char *port = NULL;
      const char *username = NULL;
      enum trivalue prompt_password = TRI_DEFAULT;
      bool        syscatalog = false;
      bool        alldb = false;
      bool        echo = false;
      bool        quiet = false;
      const char *table = NULL;
      const char *index = NULL;

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

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

      /* process command-line options */
      while ((c = getopt_long(argc, argv, "h:p:U:wWeqd:ast:i:", 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 'a':
                        alldb = true;
                        break;
                  case 's':
                        syscatalog = true;
                        break;
                  case 't':
                        table = optarg;
                        break;
                  case 'i':
                        index = 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 reindex all databases and a specific one at the same time\n"), progname);
                  exit(1);
            }
            if (syscatalog)
            {
                  fprintf(stderr, _("%s: cannot reindex all databases and system catalogs at the same time\n"), progname);
                  exit(1);
            }
            if (table)
            {
                  fprintf(stderr, _("%s: cannot reindex a specific table in all databases\n"), progname);
                  exit(1);
            }
            if (index)
            {
                  fprintf(stderr, _("%s: cannot reindex a specific index in all databases\n"), progname);
                  exit(1);
            }

            reindex_all_databases(host, port, username, prompt_password,
                                            progname, echo, quiet);
      }
      else if (syscatalog)
      {
            if (table)
            {
                  fprintf(stderr, _("%s: cannot reindex a specific table and system catalogs at the same time\n"), progname);
                  exit(1);
            }
            if (index)
            {
                  fprintf(stderr, _("%s: cannot reindex a specific index and system catalogs at the same time\n"), progname);
                  exit(1);
            }

            if (dbname == NULL)
            {
                  if (getenv("PGDATABASE"))
                        dbname = getenv("PGDATABASE");
                  else if (getenv("PGUSER"))
                        dbname = getenv("PGUSER");
                  else
                        dbname = get_user_name(progname);
            }

            reindex_system_catalogs(dbname, host, port, username, prompt_password,
                                                progname, echo);
      }
      else
      {
            if (dbname == NULL)
            {
                  if (getenv("PGDATABASE"))
                        dbname = getenv("PGDATABASE");
                  else if (getenv("PGUSER"))
                        dbname = getenv("PGUSER");
                  else
                        dbname = get_user_name(progname);
            }

            if (index)
                  reindex_one_database(index, dbname, "INDEX", host, port,
                                                 username, prompt_password, progname, echo);
            if (table)
                  reindex_one_database(table, dbname, "TABLE", host, port,
                                                 username, prompt_password, progname, echo);
            /* reindex database only if index or table is not specified */
            if (index == NULL && table == NULL)
                  reindex_one_database(dbname, dbname, "DATABASE", host, port,
                                                 username, prompt_password, progname, echo);
      }

      exit(0);
}

static void
reindex_one_database(const char *name, const char *dbname, const char *type,
                               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, "REINDEX");
      if (strcmp(type, "TABLE") == 0)
            appendPQExpBuffer(&sql, " TABLE %s", fmtId(name));
      else if (strcmp(type, "INDEX") == 0)
            appendPQExpBuffer(&sql, " INDEX %s", fmtId(name));
      else if (strcmp(type, "DATABASE") == 0)
            appendPQExpBuffer(&sql, " DATABASE %s", fmtId(name));
      appendPQExpBuffer(&sql, ";\n");

      conn = connectDatabase(dbname, host, port, username, prompt_password, progname);

      if (!executeMaintenanceCommand(conn, sql.data, echo))
      {
            if (strcmp(type, "TABLE") == 0)
                  fprintf(stderr, _("%s: reindexing of table \"%s\" in database \"%s\" failed: %s"),
                              progname, name, dbname, PQerrorMessage(conn));
            if (strcmp(type, "INDEX") == 0)
                  fprintf(stderr, _("%s: reindexing of index \"%s\" in database \"%s\" failed: %s"),
                              progname, name, dbname, PQerrorMessage(conn));
            else
                  fprintf(stderr, _("%s: reindexing of database \"%s\" failed: %s"),
                              progname, dbname, PQerrorMessage(conn));
            PQfinish(conn);
            exit(1);
      }

      PQfinish(conn);
      termPQExpBuffer(&sql);
}

static void
reindex_all_databases(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: reindexing database \"%s\"\n"), progname, dbname);
                  fflush(stdout);
            }

            reindex_one_database(dbname, dbname, "DATABASE", host, port, username,
                                           prompt_password, progname, echo);
      }

      PQclear(result);
}

static void
reindex_system_catalogs(const char *dbname, 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, "REINDEX SYSTEM %s;\n", dbname);

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

static void
help(const char *progname)
{
      printf(_("%s reindexes a PostgreSQL database.\n\n"), progname);
      printf(_("Usage:\n"));
      printf(_("  %s [OPTION]... [DBNAME]\n"), progname);
      printf(_("\nOptions:\n"));
      printf(_("  -a, --all                 reindex all databases\n"));
      printf(_("  -d, --dbname=DBNAME       database to reindex\n"));
      printf(_("  -e, --echo                show the commands being sent to the server\n"));
      printf(_("  -i, --index=INDEX         recreate specific index only\n"));
      printf(_("  -q, --quiet               don't write any messages\n"));
      printf(_("  -s, --system              reindex system catalogs\n"));
      printf(_("  -t, --table=TABLE         reindex specific table only\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 REINDEX for details.\n"));
      printf(_("\nReport bugs to <pgsql-bugs@postgresql.org>.\n"));
}

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