diff options
Diffstat (limited to 'src/bin/scripts/clusterdb.c')
| -rw-r--r-- | src/bin/scripts/clusterdb.c | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/src/bin/scripts/clusterdb.c b/src/bin/scripts/clusterdb.c new file mode 100644 index 00000000000..41cdfc486f9 --- /dev/null +++ b/src/bin/scripts/clusterdb.c @@ -0,0 +1,245 @@ +/*------------------------------------------------------------------------- + * + * clusterdb + * + * Portions Copyright (c) 2002-2003, PostgreSQL Global Development Group + * + * $Header: /cvsroot/pgsql/src/bin/scripts/clusterdb.c,v 1.1 2003/06/18 12:19:11 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, bool quiet); +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} + }; + + 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]); + init_nls(); + 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); + } + + 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, quiet); + } + + 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, bool quiet) +{ + PQExpBufferData sql; + + PGconn *conn; + PGresult *result; + + initPQExpBuffer(&sql); + + appendPQExpBuffer(&sql, "CLUSTER"); + if (table) + appendPQExpBuffer(&sql, " %s", fmtId(table)); + appendPQExpBuffer(&sql, ";\n"); + + conn = connectDatabase(dbname, host, port, username, password, progname); + + if (echo) + printf("%s", sql.data); + result = PQexec(conn, sql.data); + + if (PQresultStatus(result) != PGRES_COMMAND_OK) + { + 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); + } + + PQclear(result); + PQfinish(conn); + termPQExpBuffer(&sql); + + if (!quiet) + puts("CLUSTER"); +} + + +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("template1", host, port, username, password, progname); + result = executeQuery(conn, "SELECT datname FROM pg_database WHERE datallowconn;", progname, echo); + PQfinish(conn); + + for (i = 0; i < PQntuples(result); i++) + { + char *dbname = PQgetvalue(result, i, 0); + + if (!quiet) + fprintf(stderr, _("%s: clustering database \"%s\"\n"), progname, dbname); + + cluster_one_database(dbname, NULL, + host, port, username, password, + progname, echo, quiet); + } + + PQclear(result); +} + + +static void +help(const char *progname) +{ + printf(_("%s clusters all previously clustered tables in a database.\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")); + 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")); +} |