235 lines
8.2 KiB
C++
235 lines
8.2 KiB
C++
/* -------------------------------------------------------------------------
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*
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* clusterdb
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*
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* Portions Copyright (c) 2002-2012, PostgreSQL Global Development Group
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*
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* src/bin/scripts/clusterdb.c
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*
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* -------------------------------------------------------------------------
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*/
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#include "postgres_fe.h"
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#include "common.h"
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#include "dumputils.h"
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static void cluster_one_database(const char* dbname, bool verbose, const char* table, const char* host,
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const char* port, const char* username, enum trivalue prompt_password, const char* progname, bool echo);
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static void cluster_all_databases(bool verbose, const char* maintenance_db, const char* host, const char* port,
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const char* username, enum trivalue prompt_password, const char* progname, bool echo, bool quiet);
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static void help(const char* progname);
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int main(int argc, char* argv[])
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{
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static struct option long_options[] = {{"host", required_argument, NULL, 'h'},
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{"port", required_argument, NULL, 'p'},
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{"username", required_argument, NULL, 'U'},
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{"no-password", no_argument, NULL, 'w'},
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{"password", no_argument, NULL, 'W'},
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{"echo", no_argument, NULL, 'e'},
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{"quiet", no_argument, NULL, 'q'},
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{"dbname", required_argument, NULL, 'd'},
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{"all", no_argument, NULL, 'a'},
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{"table", required_argument, NULL, 't'},
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{"verbose", no_argument, NULL, 'v'},
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{"maintenance-db", required_argument, NULL, 2},
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{NULL, 0, NULL, 0}};
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const char* progname = NULL;
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int optindex;
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int c;
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const char* dbname = NULL;
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const char* maintenance_db = NULL;
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char* host = NULL;
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char* port = NULL;
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char* username = NULL;
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enum trivalue prompt_password = TRI_DEFAULT;
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bool echo = false;
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bool quiet = false;
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bool alldb = false;
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char* table = NULL;
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bool verbose = false;
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progname = get_progname(argv[0]);
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set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pgscripts"));
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handle_help_version_opts(argc, argv, "clusterdb", help);
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while ((c = getopt_long(argc, argv, "h:p:U:wWeqd:at:v", long_options, &optindex)) != -1) {
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switch (c) {
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case 'h':
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host = optarg;
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break;
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case 'p':
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port = optarg;
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break;
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case 'U':
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username = optarg;
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break;
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case 'w':
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prompt_password = TRI_NO;
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break;
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case 'W':
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prompt_password = TRI_YES;
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break;
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case 'e':
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echo = true;
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break;
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case 'q':
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quiet = true;
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break;
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case 'd':
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dbname = optarg;
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break;
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case 'a':
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alldb = true;
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break;
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case 't':
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table = optarg;
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break;
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case 'v':
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verbose = true;
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break;
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case 2:
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maintenance_db = optarg;
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break;
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default:
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fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
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exit(1);
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}
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}
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/*
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* Non-option argument specifies database name as long as it wasn't
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* already specified with -d / --dbname
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*/
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if (optind < argc && dbname == NULL) {
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dbname = argv[optind];
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optind++;
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}
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if (optind < argc) {
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fprintf(stderr, _("%s: too many command-line arguments (first is \"%s\")\n"), progname, argv[optind]);
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fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
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exit(1);
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}
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setup_cancel_handler();
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if (alldb) {
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if (dbname != NULL) {
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fprintf(stderr, _("%s: cannot cluster all databases and a specific one at the same time\n"), progname);
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exit(1);
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}
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if (table != NULL) {
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fprintf(stderr, _("%s: cannot cluster a specific table in all databases\n"), progname);
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exit(1);
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}
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cluster_all_databases(verbose, maintenance_db, host, port, username, prompt_password, progname, echo, quiet);
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} else {
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if (dbname == NULL) {
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if (getenv("PGDATABASE") != NULL)
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dbname = getenv("PGDATABASE");
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else if (getenv("PGUSER") != NULL)
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dbname = getenv("PGUSER");
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else
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dbname = get_user_name(progname);
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}
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cluster_one_database(dbname, verbose, table, host, port, username, prompt_password, progname, echo);
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}
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exit(0);
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}
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static void cluster_one_database(const char* dbname, bool verbose, const char* table, const char* host,
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const char* port, const char* username, enum trivalue prompt_password, const char* progname, bool echo)
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{
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PQExpBufferData sql;
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PGconn* conn = NULL;
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initPQExpBuffer(&sql);
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appendPQExpBuffer(&sql, "CLUSTER");
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if (verbose)
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appendPQExpBuffer(&sql, " VERBOSE");
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if (table != NULL)
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appendPQExpBuffer(&sql, " %s", table);
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appendPQExpBuffer(&sql, ";\n");
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conn = connectDatabase(dbname, host, port, username, prompt_password, progname, false);
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if (!executeMaintenanceCommand(conn, sql.data, echo)) {
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if (table != NULL)
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fprintf(stderr,
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_("%s: clustering of table \"%s\" in database \"%s\" failed: %s"),
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progname,
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table,
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dbname,
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PQerrorMessage(conn));
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else
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fprintf(stderr, _("%s: clustering of database \"%s\" failed: %s"), progname, dbname, PQerrorMessage(conn));
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PQfinish(conn);
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exit(1);
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}
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PQfinish(conn);
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termPQExpBuffer(&sql);
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}
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static void cluster_all_databases(bool verbose, const char* maintenance_db, const char* host, const char* port,
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const char* username, enum trivalue prompt_password, const char* progname, bool echo, bool quiet)
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{
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PGconn* conn = NULL;
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PGresult* result = NULL;
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int i;
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conn = connectMaintenanceDatabase(maintenance_db, host, port, username, prompt_password, progname);
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result = executeQuery(conn, "SELECT datname FROM pg_database WHERE datallowconn ORDER BY 1;", progname, echo);
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PQfinish(conn);
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for (i = 0; i < PQntuples(result); i++) {
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char* dbname = PQgetvalue(result, i, 0);
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if (!quiet) {
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printf(_("%s: clustering database \"%s\"\n"), progname, dbname);
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fflush(stdout);
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}
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cluster_one_database(dbname, verbose, NULL, host, port, username, prompt_password, progname, echo);
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}
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PQclear(result);
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}
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static void help(const char* progname)
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{
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printf(_("%s clusters all previously clustered tables in a database.\n\n"), progname);
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printf(_("Usage:\n"));
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printf(_(" %s [OPTION]... [DBNAME]\n"), progname);
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printf(_("\nOptions:\n"));
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printf(_(" -a, --all cluster all databases\n"));
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printf(_(" -d, --dbname=DBNAME database to cluster\n"));
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printf(_(" -e, --echo show the commands being sent to the server\n"));
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printf(_(" -q, --quiet don't write any messages\n"));
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printf(_(" -t, --table=TABLE cluster specific table only\n"));
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printf(_(" -v, --verbose write a lot of output\n"));
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printf(_(" -V, --version output version information, then exit\n"));
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printf(_(" -?, --help show this help, then exit\n"));
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printf(_("\nConnection options:\n"));
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printf(_(" -h, --host=HOSTNAME database server host or socket directory\n"));
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printf(_(" -p, --port=PORT database server port\n"));
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printf(_(" -U, --username=USERNAME user name to connect as\n"));
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printf(_(" -w, --no-password never prompt for password\n"));
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printf(_(" -W, --password force password prompt\n"));
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printf(_(" --maintenance-db=DBNAME alternate maintenance database\n"));
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printf(_("\nRead the description of the SQL command CLUSTER for details.\n"));
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#if ((defined(ENABLE_MULTIPLE_NODES)) || (defined(ENABLE_PRIVATEGAUSS)))
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printf(_("\nReport bugs to GaussDB support.\n"));
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#else
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printf(_("\nReport bugs to openGauss community by raising an issue.\n"));
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#endif
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}
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