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https://github.com/postgres/postgres.git
synced 2025-07-28 23:42:10 +03:00
pg_dump/pg_restore now always use SET SESSION AUTHORIZATION, not \connect,
to control object ownership. The use-set-session-authorization and no-reconnect switches are obsolete (still accepted on the command line, but they don't do anything). This is a precursor to fixing handling of CREATE SCHEMA, which will be a separate commit.
This commit is contained in:
Tom Lane
@ -15,7 +15,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup.h,v 1.25 2003/08/28 20:21:34 tgl Exp $
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* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup.h,v 1.26 2003/09/23 22:48:53 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -62,12 +62,7 @@ typedef int (*DataDumperPtr) (Archive *AH, char *oid, void *userArg);
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typedef struct _restoreOptions
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{
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int create; /* Issue commands to create the database */
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int noOwner; /* Don't reconnect to database to match
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* original object owner */
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int noReconnect; /* Don't reconnect to database under any
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* cirsumstances */
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int use_setsessauth;/* use SET SESSSION AUTHORIZATION instead
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* of \connect */
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int noOwner; /* Don't try to match original object owner */
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int disable_triggers; /* disable triggers during
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* data-only restore */
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char *superuser; /* Username to use as superuser */
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@ -15,7 +15,7 @@
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*
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.75 2003/08/28 20:21:34 tgl Exp $
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* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.76 2003/09/23 22:48:53 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -49,8 +49,9 @@ static ArchiveHandle *_allocAH(const char *FileSpec, const ArchiveFormat fmt,
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static int _printTocEntry(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt, bool isData);
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static void _doSetSessionAuth(ArchiveHandle *AH, const char *user);
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static void _reconnectAsOwner(ArchiveHandle *AH, const char *dbname, TocEntry *te);
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static void _reconnectAsUser(ArchiveHandle *AH, const char *dbname, const char *user);
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static void _reconnectToDB(ArchiveHandle *AH, const char *dbname, const char *user);
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static void _becomeUser(ArchiveHandle *AH, const char *user);
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static void _becomeOwner(ArchiveHandle *AH, TocEntry *te);
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static void _selectOutputSchema(ArchiveHandle *AH, const char *schemaName);
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static teReqs _tocEntryRequired(TocEntry *te, RestoreOptions *ropt);
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@ -144,10 +145,6 @@ RestoreArchive(Archive *AHX, RestoreOptions *ropt)
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* initially connected to, not the one we will create, which is very
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* bad...
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*/
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if (ropt->create && ropt->noReconnect)
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die_horribly(AH, modulename, "-C and -R are incompatible options\n");
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if (ropt->create && ropt->dropSchema)
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die_horribly(AH, modulename, "-C and -c are incompatible options\n");
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@ -221,7 +218,7 @@ RestoreArchive(Archive *AHX, RestoreOptions *ropt)
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/* We want the schema */
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ahlog(AH, 1, "dropping %s %s\n", te->desc, te->tag);
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/* Select owner and schema as necessary */
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_reconnectAsOwner(AH, NULL, te);
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_becomeOwner(AH, te);
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_selectOutputSchema(AH, te->namespace);
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/* Drop it */
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ahprintf(AH, "%s", te->dropStmt);
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@ -260,7 +257,7 @@ RestoreArchive(Archive *AHX, RestoreOptions *ropt)
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if (strcmp(te->desc, "DATABASE") == 0)
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{
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ahlog(AH, 1, "connecting to new database \"%s\" as user \"%s\"\n", te->tag, te->owner);
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_reconnectAsUser(AH, te->tag, te->owner);
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_reconnectToDB(AH, te->tag, te->owner);
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}
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}
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@ -310,11 +307,8 @@ RestoreArchive(Archive *AHX, RestoreOptions *ropt)
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{
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_disableTriggersIfNecessary(AH, te, ropt);
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/*
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* Reconnect if necessary (_disableTriggers may
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* have reconnected)
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*/
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_reconnectAsOwner(AH, NULL, te);
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/* Select owner and schema as necessary */
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_becomeOwner(AH, te);
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_selectOutputSchema(AH, te->namespace);
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ahlog(AH, 1, "restoring data for table \"%s\"\n", te->tag);
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@ -347,7 +341,7 @@ RestoreArchive(Archive *AHX, RestoreOptions *ropt)
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}
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}
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te = te->next;
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}
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} /* end loop over TOC entries */
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/*
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* Now use blobs_xref (if used) to fixup any refs for tables that we
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@ -439,9 +433,6 @@ _canRestoreBlobs(ArchiveHandle *AH)
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static void
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_disableTriggersIfNecessary(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt)
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{
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char *oldUser;
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char *oldSchema;
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/* This hack is only needed in a data-only restore */
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if (!ropt->dataOnly || !ropt->disable_triggers)
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return;
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@ -450,23 +441,12 @@ _disableTriggersIfNecessary(ArchiveHandle *AH, TocEntry *te, RestoreOptions *rop
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if (te && strcmp(te->desc, "BLOBS") == 0)
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return;
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oldUser = strdup(AH->currUser);
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oldSchema = strdup(AH->currSchema);
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/*
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* Become superuser if possible, since they are the only ones who can
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* update pg_class. If -S was not given, but we are allowed to use
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* SET SESSION AUTHORIZATION, assume the initial user identity is a
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* superuser. Otherwise we just have to bull ahead anyway.
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* update pg_class. If -S was not given, assume the initial user identity
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* is a superuser.
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*/
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if (ropt->superuser)
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{
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_reconnectAsUser(AH, NULL, ropt->superuser);
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/* be careful to preserve schema setting */
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_selectOutputSchema(AH, oldSchema);
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}
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else if (AH->ropt->use_setsessauth)
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_doSetSessionAuth(AH, NULL);
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_becomeUser(AH, ropt->superuser);
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ahlog(AH, 1, "disabling triggers\n");
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@ -487,28 +467,11 @@ _disableTriggersIfNecessary(ArchiveHandle *AH, TocEntry *te, RestoreOptions *rop
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else
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ahprintf(AH, "UPDATE pg_catalog.pg_class SET reltriggers = 0 FROM pg_catalog.pg_namespace "
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"WHERE relnamespace = pg_namespace.oid AND nspname !~ '^pg_';\n\n");
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/*
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* Restore original user and schema state.
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*/
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if (ropt->superuser)
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{
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_reconnectAsUser(AH, NULL, oldUser);
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/* be careful to preserve schema setting */
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_selectOutputSchema(AH, oldSchema);
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}
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else if (AH->ropt->use_setsessauth)
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_doSetSessionAuth(AH, oldUser);
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free(oldUser);
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free(oldSchema);
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}
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static void
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_enableTriggersIfNecessary(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt)
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{
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char *oldUser;
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char *oldSchema;
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/* This hack is only needed in a data-only restore */
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if (!ropt->dataOnly || !ropt->disable_triggers)
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return;
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@ -517,23 +480,12 @@ _enableTriggersIfNecessary(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt
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if (te && strcmp(te->desc, "BLOBS") == 0)
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return;
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oldUser = strdup(AH->currUser);
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oldSchema = strdup(AH->currSchema);
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/*
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* Become superuser if possible, since they are the only ones who can
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* update pg_class. If -S was not given, but we are allowed to use
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* SET SESSION AUTHORIZATION, assume the initial user identity is a
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* superuser. Otherwise we just have to bull ahead anyway.
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* update pg_class. If -S was not given, assume the initial user identity
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* is a superuser.
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*/
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if (ropt->superuser)
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{
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_reconnectAsUser(AH, NULL, ropt->superuser);
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/* be careful to preserve schema setting */
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_selectOutputSchema(AH, oldSchema);
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}
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else if (AH->ropt->use_setsessauth)
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_doSetSessionAuth(AH, NULL);
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_becomeUser(AH, ropt->superuser);
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ahlog(AH, 1, "enabling triggers\n");
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@ -557,20 +509,6 @@ _enableTriggersIfNecessary(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt
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"(SELECT pg_catalog.count(*) FROM pg_catalog.pg_trigger where pg_class.oid = tgrelid) "
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"FROM pg_catalog.pg_namespace "
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"WHERE relnamespace = pg_namespace.oid AND nspname !~ '^pg_';\n\n");
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/*
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* Restore original user and schema state.
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*/
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if (ropt->superuser)
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{
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_reconnectAsUser(AH, NULL, oldUser);
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/* be careful to preserve schema setting */
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_selectOutputSchema(AH, oldSchema);
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}
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else if (AH->ropt->use_setsessauth)
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_doSetSessionAuth(AH, oldUser);
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free(oldUser);
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free(oldSchema);
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}
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/*
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@ -2087,8 +2025,8 @@ _tocEntryRequired(TocEntry *te, RestoreOptions *ropt)
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/*
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* Issue a SET SESSION AUTHORIZATION command. Caller is responsible
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* for updating state if appropriate. If user is NULL, the
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* specification DEFAULT will be used.
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* for updating state if appropriate. If user is NULL or an empty string,
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* the specification DEFAULT will be used.
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*/
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static void
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_doSetSessionAuth(ArchiveHandle *AH, const char *user)
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@ -2096,11 +2034,11 @@ _doSetSessionAuth(ArchiveHandle *AH, const char *user)
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PQExpBuffer cmd = createPQExpBuffer();
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appendPQExpBuffer(cmd, "SET SESSION AUTHORIZATION ");
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if (user)
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/*
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* SQL requires a string literal here. Might as well be correct.
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*/
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/*
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* SQL requires a string literal here. Might as well be correct.
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*/
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if (user && *user)
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appendStringLiteral(cmd, user, false);
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else
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appendPQExpBuffer(cmd, "DEFAULT");
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@ -2126,34 +2064,17 @@ _doSetSessionAuth(ArchiveHandle *AH, const char *user)
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/*
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* Issue the commands to connect to the database as the specified user
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* to the specified database. The database name may be NULL, then the
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* current database is kept. If reconnects were disallowed by the
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* user, this won't do anything.
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* Issue the commands to connect to the specified database
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* as the specified user.
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*
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* If we're currently restoring right into a database, this will
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* actually establish a connection. Otherwise it puts a \connect into
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* the script output.
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*/
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static void
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_reconnectAsUser(ArchiveHandle *AH, const char *dbname, const char *user)
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_reconnectToDB(ArchiveHandle *AH, const char *dbname, const char *user)
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{
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if (!user || strlen(user) == 0
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|| (strcmp(AH->currUser, user) == 0 && !dbname))
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return; /* no need to do anything */
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/*
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* Use SET SESSION AUTHORIZATION if allowed and no database change
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* needed
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*/
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if (!dbname && AH->ropt->use_setsessauth)
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_doSetSessionAuth(AH, user);
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else if (AH->ropt && AH->ropt->noReconnect)
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{
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/* When -R was given, don't do anything. */
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return;
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}
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else if (RestoringToDB(AH))
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if (RestoringToDB(AH))
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ReconnectToServer(AH, dbname, user);
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else
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{
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@ -2167,11 +2088,6 @@ _reconnectAsUser(ArchiveHandle *AH, const char *dbname, const char *user)
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ahprintf(AH, qry->data);
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destroyPQExpBuffer(qry);
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/* don't assume we still know the output schema */
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if (AH->currSchema)
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free(AH->currSchema);
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AH->currSchema = strdup("");
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}
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/*
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@ -2182,21 +2098,50 @@ _reconnectAsUser(ArchiveHandle *AH, const char *dbname, const char *user)
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free(AH->currUser);
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AH->currUser = strdup(user);
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/* don't assume we still know the output schema */
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if (AH->currSchema)
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free(AH->currSchema);
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AH->currSchema = strdup("");
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}
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/*
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* Become the specified user, and update state to avoid redundant commands
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*
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* NULL or empty argument is taken to mean restoring the session default
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*/
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static void
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_becomeUser(ArchiveHandle *AH, const char *user)
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{
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if (!user)
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user = ""; /* avoid null pointers */
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if (AH->currUser && strcmp(AH->currUser, user) == 0)
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return; /* no need to do anything */
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_doSetSessionAuth(AH, user);
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/*
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* NOTE: currUser keeps track of what the imaginary session user in
|
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* our script is
|
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*/
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if (AH->currUser)
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free(AH->currUser);
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AH->currUser = strdup(user);
|
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}
|
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|
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|
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/*
|
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* Issues the commands to connect to the database (or the current one,
|
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* if NULL) as the owner of the the given TOC entry object. If
|
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* Become the owner of the the given TOC entry object. If
|
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* changes in ownership are not allowed, this doesn't do anything.
|
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*/
|
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static void
|
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_reconnectAsOwner(ArchiveHandle *AH, const char *dbname, TocEntry *te)
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_becomeOwner(ArchiveHandle *AH, TocEntry *te)
|
||||
{
|
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if (AH->ropt && AH->ropt->noOwner)
|
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return;
|
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|
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_reconnectAsUser(AH, dbname, te->owner);
|
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_becomeUser(AH, te->owner);
|
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}
|
||||
|
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|
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@ -2250,7 +2195,7 @@ _printTocEntry(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt, bool isDat
|
||||
char *pfx;
|
||||
|
||||
/* Select owner and schema as necessary */
|
||||
_reconnectAsOwner(AH, NULL, te);
|
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_becomeOwner(AH, te);
|
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_selectOutputSchema(AH, te->namespace);
|
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|
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if (isData)
|
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|
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@ -12,7 +12,7 @@
|
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* by PostgreSQL
|
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*
|
||||
* IDENTIFICATION
|
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* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_dump.c,v 1.348 2003/09/22 00:23:34 petere Exp $
|
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* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_dump.c,v 1.349 2003/09/23 22:48:53 tgl Exp $
|
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*
|
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*-------------------------------------------------------------------------
|
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*/
|
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@ -174,7 +174,6 @@ main(int argc, char **argv)
|
||||
int outputCreate = 0;
|
||||
int outputBlobs = 0;
|
||||
int outputNoOwner = 0;
|
||||
int outputNoReconnect = 0;
|
||||
static int use_setsessauth = 0;
|
||||
static int disable_triggers = 0;
|
||||
char *outputSuperuser = NULL;
|
||||
@ -322,8 +321,8 @@ main(int argc, char **argv)
|
||||
pgport = optarg;
|
||||
break;
|
||||
|
||||
case 'R': /* No reconnect */
|
||||
outputNoReconnect = 1;
|
||||
case 'R':
|
||||
/* no-op, still accepted for backwards compatibility */
|
||||
break;
|
||||
|
||||
case 's': /* dump schema only */
|
||||
@ -369,7 +368,7 @@ main(int argc, char **argv)
|
||||
*/
|
||||
case 'X':
|
||||
if (strcmp(optarg, "use-set-session-authorization") == 0)
|
||||
use_setsessauth = 1;
|
||||
/* no-op, still allowed for compatibility */ ;
|
||||
else if (strcmp(optarg, "disable-triggers") == 0)
|
||||
disable_triggers = 1;
|
||||
else
|
||||
@ -585,8 +584,6 @@ main(int argc, char **argv)
|
||||
ropt->superuser = outputSuperuser;
|
||||
ropt->create = outputCreate;
|
||||
ropt->noOwner = outputNoOwner;
|
||||
ropt->noReconnect = outputNoReconnect;
|
||||
ropt->use_setsessauth = use_setsessauth;
|
||||
ropt->disable_triggers = disable_triggers;
|
||||
|
||||
if (compressLevel == -1)
|
||||
@ -633,18 +630,13 @@ help(const char *progname)
|
||||
printf(_(" -D, --column-inserts dump data as INSERT commands with column names\n"));
|
||||
printf(_(" -n, --schema=SCHEMA dump the named schema only\n"));
|
||||
printf(_(" -o, --oids include OIDs in dump\n"));
|
||||
printf(_(" -O, --no-owner do not output \\connect commands in plain\n"
|
||||
" text format\n"));
|
||||
printf(_(" -R, --no-reconnect disable ALL reconnections to the database in\n"
|
||||
" plain text format\n"));
|
||||
printf(_(" -O, --no-owner do not output commands to set object ownership\n"
|
||||
" in plain text format\n"));
|
||||
printf(_(" -s, --schema-only dump only the schema, no data\n"));
|
||||
printf(_(" -S, --superuser=NAME specify the superuser user name to use in\n"
|
||||
" plain text format\n"));
|
||||
printf(_(" -t, --table=TABLE dump the named table only\n"));
|
||||
printf(_(" -x, --no-privileges do not dump privileges (grant/revoke)\n"));
|
||||
printf(_(" -X use-set-session-authorization, --use-set-session-authorization\n"
|
||||
" output SET SESSION AUTHORIZATION commands rather\n"
|
||||
" than \\connect commands\n"));
|
||||
printf(_(" -X disable-triggers, --disable-triggers\n"
|
||||
" disable triggers during data-only restore\n"));
|
||||
|
||||
|
||||
@ -6,7 +6,7 @@
|
||||
* Portions Copyright (c) 1994, Regents of the University of California
|
||||
*
|
||||
*
|
||||
* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_dumpall.c,v 1.27 2003/08/07 21:11:58 tgl Exp $
|
||||
* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_dumpall.c,v 1.28 2003/09/23 22:48:53 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -659,8 +659,7 @@ runPgDump(const char *dbname)
|
||||
const char *p;
|
||||
int ret;
|
||||
|
||||
appendPQExpBuffer(cmd, "%s %s -X use-set-session-authorization -Fp '",
|
||||
pgdumploc, pgdumpopts->data);
|
||||
appendPQExpBuffer(cmd, "%s %s -Fp '", pgdumploc, pgdumpopts->data);
|
||||
|
||||
/* Shell quoting is not quite like SQL quoting, so can't use fmtId */
|
||||
for (p = dbname; *p; p++)
|
||||
|
||||
@ -34,7 +34,7 @@
|
||||
*
|
||||
*
|
||||
* IDENTIFICATION
|
||||
* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_restore.c,v 1.51 2003/08/28 20:21:34 tgl Exp $
|
||||
* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_restore.c,v 1.52 2003/09/23 22:48:53 tgl Exp $
|
||||
*
|
||||
*-------------------------------------------------------------------------
|
||||
*/
|
||||
@ -209,7 +209,7 @@ main(int argc, char **argv)
|
||||
opts->rearrange = 1;
|
||||
break;
|
||||
case 'R':
|
||||
opts->noReconnect = 1;
|
||||
/* no-op, still accepted for backwards compatibility */
|
||||
break;
|
||||
case 'P': /* Function */
|
||||
opts->selTypes = 1;
|
||||
@ -262,7 +262,7 @@ main(int argc, char **argv)
|
||||
|
||||
case 'X':
|
||||
if (strcmp(optarg, "use-set-session-authorization") == 0)
|
||||
use_setsessauth = 1;
|
||||
/* no-op, still allowed for compatibility */ ;
|
||||
else if (strcmp(optarg, "disable-triggers") == 0)
|
||||
disable_triggers = 1;
|
||||
else
|
||||
@ -290,7 +290,6 @@ main(int argc, char **argv)
|
||||
else
|
||||
fileSpec = NULL;
|
||||
|
||||
opts->use_setsessauth = use_setsessauth;
|
||||
opts->disable_triggers = disable_triggers;
|
||||
|
||||
if (opts->formatName)
|
||||
@ -378,21 +377,16 @@ usage(const char *progname)
|
||||
" output from this file\n"));
|
||||
printf(_(" -N, --orig-order restore in original dump order\n"));
|
||||
printf(_(" -o, --oid-order restore in OID order\n"));
|
||||
printf(_(" -O, --no-owner do not reconnect to database to match\n"
|
||||
" object owner\n"));
|
||||
printf(_(" -O, --no-owner do not output commands to set object ownership\n"));
|
||||
printf(_(" -P, --function=NAME(args)\n"
|
||||
" restore named function\n"));
|
||||
printf(_(" -r, --rearrange rearrange output to put indexes etc. at end\n"));
|
||||
printf(_(" -R, --no-reconnect disallow ALL reconnections to the database\n"));
|
||||
printf(_(" -s, --schema-only restore only the schema, no data\n"));
|
||||
printf(_(" -S, --superuser=NAME specify the superuser user name to use for\n"
|
||||
" disabling triggers\n"));
|
||||
printf(_(" -t, --table=NAME restore named table\n"));
|
||||
printf(_(" -T, --trigger=NAME restore named trigger\n"));
|
||||
printf(_(" -x, --no-privileges skip restoration of access privileges (grant/revoke)\n"));
|
||||
printf(_(" -X use-set-session-authorization, --use-set-session-authorization\n"
|
||||
" use SET SESSION AUTHORIZATION commands instead\n"
|
||||
" of reconnecting, if possible\n"));
|
||||
printf(_(" -X disable-triggers, --disable-triggers\n"
|
||||
" disable triggers during data-only restore\n"));
|
||||
|
||||
|
||||
Reference in New Issue
Block a user