greenplumn reindexdb 源码
greenplumn reindexdb 代码
文件路径：/src/bin/scripts/reindexdb.c
/*-------------------------------------------------------------------------
*
* reindexdb
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
*
* src/bin/scripts/reindexdb.c
*
*-------------------------------------------------------------------------
*/
#include "postgres_fe.h"
#include "common.h"
#include "common/logging.h"
#include "fe_utils/simple_list.h"
#include "fe_utils/string_utils.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, bool verbose, bool concurrently);
static void reindex_all_databases(const char *maintenance_db,
const char *host, const char *port,
const char *username, enum trivalue prompt_password,
const char *progname, bool echo,
bool quiet, bool verbose, bool concurrently);
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, bool verbose,
bool concurrently);
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'},
{"schema", required_argument, NULL, 'S'},
{"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'},
{"verbose", no_argument, NULL, 'v'},
{"concurrently", no_argument, NULL, 1},
{"maintenance-db", required_argument, NULL, 2},
{NULL, 0, NULL, 0}
};
const char *progname;
int optindex;
int c;
const char *dbname = NULL;
const char *maintenance_db = 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;
bool verbose = false;
bool concurrently = false;
SimpleStringList indexes = {NULL, NULL};
SimpleStringList tables = {NULL, NULL};
SimpleStringList schemas = {NULL, NULL};
pg_logging_init(argv[0]);
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:wWeqS:d:ast:i:v", long_options, &optindex)) != -1)
{
switch (c)
{
case 'h':
host = pg_strdup(optarg);
break;
case 'p':
port = pg_strdup(optarg);
break;
case 'U':
username = pg_strdup(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 'S':
simple_string_list_append(&schemas, optarg);
break;
case 'd':
dbname = pg_strdup(optarg);
break;
case 'a':
alldb = true;
break;
case 's':
syscatalog = true;
break;
case 't':
simple_string_list_append(&tables, optarg);
break;
case 'i':
simple_string_list_append(&indexes, optarg);
break;
case 'v':
verbose = true;
break;
case 1:
concurrently = true;
break;
case 2:
maintenance_db = pg_strdup(optarg);
break;
default:
fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
exit(1);
}
}
/*
* Non-option argument specifies database name as long as it wasn't
* already specified with -d / --dbname
*/
if (optind < argc && dbname == NULL)
{
dbname = argv[optind];
optind++;
}
if (optind < argc)
{
pg_log_error("too many command-line arguments (first is \"%s\")",
argv[optind]);
fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
exit(1);
}
setup_cancel_handler();
if (alldb)
{
if (dbname)
{
pg_log_error("cannot reindex all databases and a specific one at the same time");
exit(1);
}
if (syscatalog)
{
pg_log_error("cannot reindex all databases and system catalogs at the same time");
exit(1);
}
if (schemas.head != NULL)
{
pg_log_error("cannot reindex specific schema(s) in all databases");
exit(1);
}
if (tables.head != NULL)
{
pg_log_error("cannot reindex specific table(s) in all databases");
exit(1);
}
if (indexes.head != NULL)
{
pg_log_error("cannot reindex specific index(es) in all databases");
exit(1);
}
reindex_all_databases(maintenance_db, host, port, username,
prompt_password, progname, echo, quiet, verbose, concurrently);
}
else if (syscatalog)
{
if (schemas.head != NULL)
{
pg_log_error("cannot reindex specific schema(s) and system catalogs at the same time");
exit(1);
}
if (tables.head != NULL)
{
pg_log_error("cannot reindex specific table(s) and system catalogs at the same time");
exit(1);
}
if (indexes.head != NULL)
{
pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
exit(1);
}
if (dbname == NULL)
{
if (getenv("PGDATABASE"))
dbname = getenv("PGDATABASE");
else if (getenv("PGUSER"))
dbname = getenv("PGUSER");
else
dbname = get_user_name_or_exit(progname);
}
reindex_system_catalogs(dbname, host, port, username, prompt_password,
progname, echo, verbose, concurrently);
}
else
{
if (dbname == NULL)
{
if (getenv("PGDATABASE"))
dbname = getenv("PGDATABASE");
else if (getenv("PGUSER"))
dbname = getenv("PGUSER");
else
dbname = get_user_name_or_exit(progname);
}
if (schemas.head != NULL)
{
SimpleStringListCell *cell;
for (cell = schemas.head; cell; cell = cell->next)
{
reindex_one_database(cell->val, dbname, "SCHEMA", host, port,
username, prompt_password, progname, echo, verbose, concurrently);
}
}
if (indexes.head != NULL)
{
SimpleStringListCell *cell;
for (cell = indexes.head; cell; cell = cell->next)
{
reindex_one_database(cell->val, dbname, "INDEX", host, port,
username, prompt_password, progname, echo, verbose, concurrently);
}
}
if (tables.head != NULL)
{
SimpleStringListCell *cell;
for (cell = tables.head; cell; cell = cell->next)
{
reindex_one_database(cell->val, dbname, "TABLE", host, port,
username, prompt_password, progname, echo, verbose, concurrently);
}
}
/*
* reindex database only if neither index nor table nor schema is
* specified
*/
if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
reindex_one_database(NULL, dbname, "DATABASE", host, port,
username, prompt_password, progname, echo, verbose, concurrently);
}
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,
bool verbose, bool concurrently)
{
PQExpBufferData sql;
PGconn *conn;
conn = connectDatabase(dbname, host, port, username, prompt_password,
progname, echo, false, false);
/*
* GPDB_12_MERGE_FIXME: do we still report this as PostgreSQL 12 or should
* it say Greenplum 7?
*/
if (concurrently && PQserverVersion(conn) < 120000)
{
PQfinish(conn);
pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
"concurrently", "12");
exit(1);
}
initPQExpBuffer(&sql);
appendPQExpBufferStr(&sql, "REINDEX ");
if (verbose)
appendPQExpBufferStr(&sql, "(VERBOSE) ");
appendPQExpBufferStr(&sql, type);
appendPQExpBufferChar(&sql, ' ');
if (concurrently)
appendPQExpBufferStr(&sql, "CONCURRENTLY ");
if (strcmp(type, "TABLE") == 0 ||
strcmp(type, "INDEX") == 0)
appendQualifiedRelation(&sql, name, conn, progname, echo);
else if (strcmp(type, "SCHEMA") == 0)
appendPQExpBufferStr(&sql, name);
else if (strcmp(type, "DATABASE") == 0)
appendPQExpBufferStr(&sql, fmtId(PQdb(conn)));
appendPQExpBufferChar(&sql, ';');
if (!executeMaintenanceCommand(conn, sql.data, echo))
{
if (strcmp(type, "TABLE") == 0)
pg_log_error("reindexing of table \"%s\" in database \"%s\" failed: %s",
name, PQdb(conn), PQerrorMessage(conn));
else if (strcmp(type, "INDEX") == 0)
pg_log_error("reindexing of index \"%s\" in database \"%s\" failed: %s",
name, PQdb(conn), PQerrorMessage(conn));
else if (strcmp(type, "SCHEMA") == 0)
pg_log_error("reindexing of schema \"%s\" in database \"%s\" failed: %s",
name, PQdb(conn), PQerrorMessage(conn));
else
pg_log_error("reindexing of database \"%s\" failed: %s",
PQdb(conn), PQerrorMessage(conn));
PQfinish(conn);
exit(1);
}
PQfinish(conn);
termPQExpBuffer(&sql);
}
static void
reindex_all_databases(const char *maintenance_db,
const char *host, const char *port,
const char *username, enum trivalue prompt_password,
const char *progname, bool echo, bool quiet, bool verbose,
bool concurrently)
{
PGconn *conn;
PGresult *result;
PQExpBufferData connstr;
int i;
conn = connectMaintenanceDatabase(maintenance_db, host, port, username,
prompt_password, progname, echo);
result = executeQuery(conn, "SELECT datname FROM pg_database WHERE datallowconn ORDER BY 1;", progname, echo);
PQfinish(conn);
initPQExpBuffer(&connstr);
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);
}
resetPQExpBuffer(&connstr);
appendPQExpBuffer(&connstr, "dbname=");
appendConnStrVal(&connstr, dbname);
reindex_one_database(NULL, connstr.data, "DATABASE", host,
port, username, prompt_password,
progname, echo, verbose, concurrently);
}
termPQExpBuffer(&connstr);
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, bool verbose, bool concurrently)
{
PGconn *conn;
PQExpBufferData sql;
conn = connectDatabase(dbname, host, port, username, prompt_password,
progname, echo, false, false);
initPQExpBuffer(&sql);
appendPQExpBuffer(&sql, "REINDEX");
if (verbose)
appendPQExpBuffer(&sql, " (VERBOSE)");
appendPQExpBufferStr(&sql, " SYSTEM ");
if (concurrently)
appendPQExpBuffer(&sql, "CONCURRENTLY ");
appendPQExpBufferStr(&sql, fmtId(PQdb(conn)));
appendPQExpBufferChar(&sql, ';');
if (!executeMaintenanceCommand(conn, sql.data, echo))
{
pg_log_error("reindexing of system catalogs failed: %s",
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(_(" --concurrently reindex concurrently\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(es) only\n"));
printf(_(" -q, --quiet don't write any messages\n"));
printf(_(" -s, --system reindex system catalogs\n"));
printf(_(" -S, --schema=SCHEMA reindex specific schema(s) only\n"));
printf(_(" -t, --table=TABLE reindex specific table(s) only\n"));
printf(_(" -v, --verbose write a lot of output\n"));
printf(_(" -V, --version output version information, then exit\n"));
printf(_(" -?, --help show this help, 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(_(" --maintenance-db=DBNAME alternate maintenance database\n"));
printf(_("\nRead the description of the SQL command REINDEX for details.\n"));
printf(_("\nReport bugs to <bugs@greenplum.org>.\n"));
}
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