summaryrefslogtreecommitdiffstats
path: root/src/bin/pg_dump/pg_restore.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:19:15 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:19:15 +0000
commit6eb9c5a5657d1fe77b55cc261450f3538d35a94d (patch)
tree657d8194422a5daccecfd42d654b8a245ef7b4c8 /src/bin/pg_dump/pg_restore.c
parentInitial commit. (diff)
downloadpostgresql-13-6eb9c5a5657d1fe77b55cc261450f3538d35a94d.tar.xz
postgresql-13-6eb9c5a5657d1fe77b55cc261450f3538d35a94d.zip
Adding upstream version 13.4.upstream/13.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/bin/pg_dump/pg_restore.c')
-rw-r--r--src/bin/pg_dump/pg_restore.c524
1 files changed, 524 insertions, 0 deletions
diff --git a/src/bin/pg_dump/pg_restore.c b/src/bin/pg_dump/pg_restore.c
new file mode 100644
index 0000000..ebdc50d
--- /dev/null
+++ b/src/bin/pg_dump/pg_restore.c
@@ -0,0 +1,524 @@
+/*-------------------------------------------------------------------------
+ *
+ * pg_restore.c
+ * pg_restore is an utility extracting postgres database definitions
+ * from a backup archive created by pg_dump using the archiver
+ * interface.
+ *
+ * pg_restore will read the backup archive and
+ * dump out a script that reproduces
+ * the schema of the database in terms of
+ * user-defined types
+ * user-defined functions
+ * tables
+ * indexes
+ * aggregates
+ * operators
+ * ACL - grant/revoke
+ *
+ * the output script is SQL that is understood by PostgreSQL
+ *
+ * Basic process in a restore operation is:
+ *
+ * Open the Archive and read the TOC.
+ * Set flags in TOC entries, and *maybe* reorder them.
+ * Generate script to stdout
+ * Exit
+ *
+ * Copyright (c) 2000, Philip Warner
+ * Rights are granted to use this software in any way so long
+ * as this notice is not removed.
+ *
+ * The author is not responsible for loss or damages that may
+ * result from its use.
+ *
+ *
+ * IDENTIFICATION
+ * src/bin/pg_dump/pg_restore.c
+ *
+ *-------------------------------------------------------------------------
+ */
+#include "postgres_fe.h"
+
+#include <ctype.h>
+#ifdef HAVE_TERMIOS_H
+#include <termios.h>
+#endif
+
+#include "dumputils.h"
+#include "getopt_long.h"
+#include "parallel.h"
+#include "pg_backup_utils.h"
+
+static void usage(const char *progname);
+
+int
+main(int argc, char **argv)
+{
+ RestoreOptions *opts;
+ int c;
+ int exit_code;
+ int numWorkers = 1;
+ Archive *AH;
+ char *inputFileSpec;
+ static int disable_triggers = 0;
+ static int enable_row_security = 0;
+ static int if_exists = 0;
+ static int no_data_for_failed_tables = 0;
+ static int outputNoTablespaces = 0;
+ static int use_setsessauth = 0;
+ static int no_comments = 0;
+ static int no_publications = 0;
+ static int no_security_labels = 0;
+ static int no_subscriptions = 0;
+ static int strict_names = 0;
+
+ struct option cmdopts[] = {
+ {"clean", 0, NULL, 'c'},
+ {"create", 0, NULL, 'C'},
+ {"data-only", 0, NULL, 'a'},
+ {"dbname", 1, NULL, 'd'},
+ {"exit-on-error", 0, NULL, 'e'},
+ {"exclude-schema", 1, NULL, 'N'},
+ {"file", 1, NULL, 'f'},
+ {"format", 1, NULL, 'F'},
+ {"function", 1, NULL, 'P'},
+ {"host", 1, NULL, 'h'},
+ {"index", 1, NULL, 'I'},
+ {"jobs", 1, NULL, 'j'},
+ {"list", 0, NULL, 'l'},
+ {"no-privileges", 0, NULL, 'x'},
+ {"no-acl", 0, NULL, 'x'},
+ {"no-owner", 0, NULL, 'O'},
+ {"no-reconnect", 0, NULL, 'R'},
+ {"port", 1, NULL, 'p'},
+ {"no-password", 0, NULL, 'w'},
+ {"password", 0, NULL, 'W'},
+ {"schema", 1, NULL, 'n'},
+ {"schema-only", 0, NULL, 's'},
+ {"superuser", 1, NULL, 'S'},
+ {"table", 1, NULL, 't'},
+ {"trigger", 1, NULL, 'T'},
+ {"use-list", 1, NULL, 'L'},
+ {"username", 1, NULL, 'U'},
+ {"verbose", 0, NULL, 'v'},
+ {"single-transaction", 0, NULL, '1'},
+
+ /*
+ * the following options don't have an equivalent short option letter
+ */
+ {"disable-triggers", no_argument, &disable_triggers, 1},
+ {"enable-row-security", no_argument, &enable_row_security, 1},
+ {"if-exists", no_argument, &if_exists, 1},
+ {"no-data-for-failed-tables", no_argument, &no_data_for_failed_tables, 1},
+ {"no-tablespaces", no_argument, &outputNoTablespaces, 1},
+ {"role", required_argument, NULL, 2},
+ {"section", required_argument, NULL, 3},
+ {"strict-names", no_argument, &strict_names, 1},
+ {"use-set-session-authorization", no_argument, &use_setsessauth, 1},
+ {"no-comments", no_argument, &no_comments, 1},
+ {"no-publications", no_argument, &no_publications, 1},
+ {"no-security-labels", no_argument, &no_security_labels, 1},
+ {"no-subscriptions", no_argument, &no_subscriptions, 1},
+
+ {NULL, 0, NULL, 0}
+ };
+
+ pg_logging_init(argv[0]);
+ pg_logging_set_level(PG_LOG_WARNING);
+ set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pg_dump"));
+
+ init_parallel_dump_utils();
+
+ opts = NewRestoreOptions();
+
+ progname = get_progname(argv[0]);
+
+ if (argc > 1)
+ {
+ if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0)
+ {
+ usage(progname);
+ exit_nicely(0);
+ }
+ if (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-V") == 0)
+ {
+ puts("pg_restore (PostgreSQL) " PG_VERSION);
+ exit_nicely(0);
+ }
+ }
+
+ while ((c = getopt_long(argc, argv, "acCd:ef:F:h:I:j:lL:n:N:Op:P:RsS:t:T:U:vwWx1",
+ cmdopts, NULL)) != -1)
+ {
+ switch (c)
+ {
+ case 'a': /* Dump data only */
+ opts->dataOnly = 1;
+ break;
+ case 'c': /* clean (i.e., drop) schema prior to create */
+ opts->dropSchema = 1;
+ break;
+ case 'C':
+ opts->createDB = 1;
+ break;
+ case 'd':
+ opts->cparams.dbname = pg_strdup(optarg);
+ break;
+ case 'e':
+ opts->exit_on_error = true;
+ break;
+ case 'f': /* output file name */
+ opts->filename = pg_strdup(optarg);
+ break;
+ case 'F':
+ if (strlen(optarg) != 0)
+ opts->formatName = pg_strdup(optarg);
+ break;
+ case 'h':
+ if (strlen(optarg) != 0)
+ opts->cparams.pghost = pg_strdup(optarg);
+ break;
+
+ case 'j': /* number of restore jobs */
+ numWorkers = atoi(optarg);
+ break;
+
+ case 'l': /* Dump the TOC summary */
+ opts->tocSummary = 1;
+ break;
+
+ case 'L': /* input TOC summary file name */
+ opts->tocFile = pg_strdup(optarg);
+ break;
+
+ case 'n': /* Dump data for this schema only */
+ simple_string_list_append(&opts->schemaNames, optarg);
+ break;
+
+ case 'N': /* Do not dump data for this schema */
+ simple_string_list_append(&opts->schemaExcludeNames, optarg);
+ break;
+
+ case 'O':
+ opts->noOwner = 1;
+ break;
+
+ case 'p':
+ if (strlen(optarg) != 0)
+ opts->cparams.pgport = pg_strdup(optarg);
+ break;
+ case 'R':
+ /* no-op, still accepted for backwards compatibility */
+ break;
+ case 'P': /* Function */
+ opts->selTypes = 1;
+ opts->selFunction = 1;
+ simple_string_list_append(&opts->functionNames, optarg);
+ break;
+ case 'I': /* Index */
+ opts->selTypes = 1;
+ opts->selIndex = 1;
+ simple_string_list_append(&opts->indexNames, optarg);
+ break;
+ case 'T': /* Trigger */
+ opts->selTypes = 1;
+ opts->selTrigger = 1;
+ simple_string_list_append(&opts->triggerNames, optarg);
+ break;
+ case 's': /* dump schema only */
+ opts->schemaOnly = 1;
+ break;
+ case 'S': /* Superuser username */
+ if (strlen(optarg) != 0)
+ opts->superuser = pg_strdup(optarg);
+ break;
+ case 't': /* Dump specified table(s) only */
+ opts->selTypes = 1;
+ opts->selTable = 1;
+ simple_string_list_append(&opts->tableNames, optarg);
+ break;
+
+ case 'U':
+ opts->cparams.username = pg_strdup(optarg);
+ break;
+
+ case 'v': /* verbose */
+ opts->verbose = 1;
+ pg_logging_set_level(PG_LOG_INFO);
+ break;
+
+ case 'w':
+ opts->cparams.promptPassword = TRI_NO;
+ break;
+
+ case 'W':
+ opts->cparams.promptPassword = TRI_YES;
+ break;
+
+ case 'x': /* skip ACL dump */
+ opts->aclsSkip = 1;
+ break;
+
+ case '1': /* Restore data in a single transaction */
+ opts->single_txn = true;
+ opts->exit_on_error = true;
+ break;
+
+ case 0:
+
+ /*
+ * This covers the long options without a short equivalent.
+ */
+ break;
+
+ case 2: /* SET ROLE */
+ opts->use_role = pg_strdup(optarg);
+ break;
+
+ case 3: /* section */
+ set_dump_section(optarg, &(opts->dumpSections));
+ break;
+
+ default:
+ fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
+ exit_nicely(1);
+ }
+ }
+
+ /* Get file name from command line */
+ if (optind < argc)
+ inputFileSpec = argv[optind++];
+ else
+ inputFileSpec = NULL;
+
+ /* Complain if any arguments remain */
+ 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_nicely(1);
+ }
+
+ /* Complain if neither -f nor -d was specified (except if dumping TOC) */
+ if (!opts->cparams.dbname && !opts->filename && !opts->tocSummary)
+ {
+ pg_log_error("one of -d/--dbname and -f/--file must be specified");
+ exit_nicely(1);
+ }
+
+ /* Should get at most one of -d and -f, else user is confused */
+ if (opts->cparams.dbname)
+ {
+ if (opts->filename)
+ {
+ pg_log_error("options -d/--dbname and -f/--file cannot be used together");
+ fprintf(stderr, _("Try \"%s --help\" for more information.\n"),
+ progname);
+ exit_nicely(1);
+ }
+ opts->useDB = 1;
+ }
+
+ if (opts->dataOnly && opts->schemaOnly)
+ {
+ pg_log_error("options -s/--schema-only and -a/--data-only cannot be used together");
+ exit_nicely(1);
+ }
+
+ if (opts->dataOnly && opts->dropSchema)
+ {
+ pg_log_error("options -c/--clean and -a/--data-only cannot be used together");
+ exit_nicely(1);
+ }
+
+ /*
+ * -C is not compatible with -1, because we can't create a database inside
+ * a transaction block.
+ */
+ if (opts->createDB && opts->single_txn)
+ {
+ pg_log_error("options -C/--create and -1/--single-transaction cannot be used together");
+ exit_nicely(1);
+ }
+
+ if (numWorkers <= 0)
+ {
+ pg_log_error("invalid number of parallel jobs");
+ exit(1);
+ }
+
+ /* See comments in pg_dump.c */
+#ifdef WIN32
+ if (numWorkers > MAXIMUM_WAIT_OBJECTS)
+ {
+ pg_log_error("maximum number of parallel jobs is %d",
+ MAXIMUM_WAIT_OBJECTS);
+ exit(1);
+ }
+#endif
+
+ /* Can't do single-txn mode with multiple connections */
+ if (opts->single_txn && numWorkers > 1)
+ {
+ pg_log_error("cannot specify both --single-transaction and multiple jobs");
+ exit_nicely(1);
+ }
+
+ opts->disable_triggers = disable_triggers;
+ opts->enable_row_security = enable_row_security;
+ opts->noDataForFailedTables = no_data_for_failed_tables;
+ opts->noTablespace = outputNoTablespaces;
+ opts->use_setsessauth = use_setsessauth;
+ opts->no_comments = no_comments;
+ opts->no_publications = no_publications;
+ opts->no_security_labels = no_security_labels;
+ opts->no_subscriptions = no_subscriptions;
+
+ if (if_exists && !opts->dropSchema)
+ {
+ pg_log_error("option --if-exists requires option -c/--clean");
+ exit_nicely(1);
+ }
+ opts->if_exists = if_exists;
+ opts->strict_names = strict_names;
+
+ if (opts->formatName)
+ {
+ switch (opts->formatName[0])
+ {
+ case 'c':
+ case 'C':
+ opts->format = archCustom;
+ break;
+
+ case 'd':
+ case 'D':
+ opts->format = archDirectory;
+ break;
+
+ case 't':
+ case 'T':
+ opts->format = archTar;
+ break;
+
+ default:
+ pg_log_error("unrecognized archive format \"%s\"; please specify \"c\", \"d\", or \"t\"",
+ opts->formatName);
+ exit_nicely(1);
+ }
+ }
+
+ AH = OpenArchive(inputFileSpec, opts->format);
+
+ SetArchiveOptions(AH, NULL, opts);
+
+ /*
+ * We don't have a connection yet but that doesn't matter. The connection
+ * is initialized to NULL and if we terminate through exit_nicely() while
+ * it's still NULL, the cleanup function will just be a no-op.
+ */
+ on_exit_close_archive(AH);
+
+ /* Let the archiver know how noisy to be */
+ AH->verbose = opts->verbose;
+
+ /*
+ * Whether to keep submitting sql commands as "pg_restore ... | psql ... "
+ */
+ AH->exit_on_error = opts->exit_on_error;
+
+ if (opts->tocFile)
+ SortTocFromFile(AH);
+
+ AH->numWorkers = numWorkers;
+
+ if (opts->tocSummary)
+ PrintTOCSummary(AH);
+ else
+ {
+ ProcessArchiveRestoreOptions(AH);
+ RestoreArchive(AH);
+ }
+
+ /* done, print a summary of ignored errors */
+ if (AH->n_errors)
+ pg_log_warning("errors ignored on restore: %d", AH->n_errors);
+
+ /* AH may be freed in CloseArchive? */
+ exit_code = AH->n_errors ? 1 : 0;
+
+ CloseArchive(AH);
+
+ return exit_code;
+}
+
+static void
+usage(const char *progname)
+{
+ printf(_("%s restores a PostgreSQL database from an archive created by pg_dump.\n\n"), progname);
+ printf(_("Usage:\n"));
+ printf(_(" %s [OPTION]... [FILE]\n"), progname);
+
+ printf(_("\nGeneral options:\n"));
+ printf(_(" -d, --dbname=NAME connect to database name\n"));
+ printf(_(" -f, --file=FILENAME output file name (- for stdout)\n"));
+ printf(_(" -F, --format=c|d|t backup file format (should be automatic)\n"));
+ printf(_(" -l, --list print summarized TOC of the archive\n"));
+ printf(_(" -v, --verbose verbose mode\n"));
+ printf(_(" -V, --version output version information, then exit\n"));
+ printf(_(" -?, --help show this help, then exit\n"));
+
+ printf(_("\nOptions controlling the restore:\n"));
+ printf(_(" -a, --data-only restore only the data, no schema\n"));
+ printf(_(" -c, --clean clean (drop) database objects before recreating\n"));
+ printf(_(" -C, --create create the target database\n"));
+ printf(_(" -e, --exit-on-error exit on error, default is to continue\n"));
+ printf(_(" -I, --index=NAME restore named index\n"));
+ printf(_(" -j, --jobs=NUM use this many parallel jobs to restore\n"));
+ printf(_(" -L, --use-list=FILENAME use table of contents from this file for\n"
+ " selecting/ordering output\n"));
+ printf(_(" -n, --schema=NAME restore only objects in this schema\n"));
+ printf(_(" -N, --exclude-schema=NAME do not restore objects in this schema\n"));
+ printf(_(" -O, --no-owner skip restoration of object ownership\n"));
+ printf(_(" -P, --function=NAME(args) restore named function\n"));
+ printf(_(" -s, --schema-only restore only the schema, no data\n"));
+ printf(_(" -S, --superuser=NAME superuser user name to use for disabling triggers\n"));
+ printf(_(" -t, --table=NAME restore named relation (table, view, etc.)\n"));
+ printf(_(" -T, --trigger=NAME restore named trigger\n"));
+ printf(_(" -x, --no-privileges skip restoration of access privileges (grant/revoke)\n"));
+ printf(_(" -1, --single-transaction restore as a single transaction\n"));
+ printf(_(" --disable-triggers disable triggers during data-only restore\n"));
+ printf(_(" --enable-row-security enable row security\n"));
+ printf(_(" --if-exists use IF EXISTS when dropping objects\n"));
+ printf(_(" --no-comments do not restore comments\n"));
+ printf(_(" --no-data-for-failed-tables do not restore data of tables that could not be\n"
+ " created\n"));
+ printf(_(" --no-publications do not restore publications\n"));
+ printf(_(" --no-security-labels do not restore security labels\n"));
+ printf(_(" --no-subscriptions do not restore subscriptions\n"));
+ printf(_(" --no-tablespaces do not restore tablespace assignments\n"));
+ printf(_(" --section=SECTION restore named section (pre-data, data, or post-data)\n"));
+ printf(_(" --strict-names require table and/or schema include patterns to\n"
+ " match at least one entity each\n"));
+ printf(_(" --use-set-session-authorization\n"
+ " use SET SESSION AUTHORIZATION commands instead of\n"
+ " ALTER OWNER commands to set ownership\n"));
+
+ printf(_("\nConnection options:\n"));
+ printf(_(" -h, --host=HOSTNAME database server host or socket directory\n"));
+ printf(_(" -p, --port=PORT database server port number\n"));
+ printf(_(" -U, --username=NAME connect as specified database user\n"));
+ printf(_(" -w, --no-password never prompt for password\n"));
+ printf(_(" -W, --password force password prompt (should happen automatically)\n"));
+ printf(_(" --role=ROLENAME do SET ROLE before restore\n"));
+
+ printf(_("\n"
+ "The options -I, -n, -N, -P, -t, -T, and --section can be combined and specified\n"
+ "multiple times to select multiple objects.\n"));
+ printf(_("\nIf no input file name is supplied, then standard input is used.\n\n"));
+ printf(_("Report bugs to <%s>.\n"), PACKAGE_BUGREPORT);
+ printf(_("%s home page: <%s>\n"), PACKAGE_NAME, PACKAGE_URL);
+}