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Here is another patch that fixes a stack of pg_dump bugs:

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* Fix help text ordering

* Add back --set-session-authorization to pg_dumpall.  Updated the docs
for that.  Updated help for that.

* Dump ALTER USER commands for the cluster owner ("pgsql").  These are
dumped AFTER the create user and create database commands in case the
permissions to do these have been revoked.

* Dump ALTER OWNER for public schema (because it's possible to change
it).  This was done by adding TOC entries for the public schema, and
filtering them out at archiver time.  I also save the owner in the TOC
entry just for the public schema.

* Suppress dumping single quotes around schema_path and DateStyle
options when they are set using ALTER USER or ALTER DATABASE.  Added a
comment to the steps in guc.c to remind people to update that list.

* Fix dumping in --clean mode against a pre-7.3 server.  It just sets
all drop statements to assume the public schema, allowing it to restore
without error.

* Cleaned up text output.  eg. Don't output -- Tablespaces comment if
there are none.  Same for groups and users.

* Make the commands to DELETE FROM pg_shadow and DELETE FROM pg_group
only be output when -c mode is enabled.  I'm not sure why that hasn't
been done before?!?!

This should be good for application asap, after which I will start on
regression dumping 7.0-7.4 databases.

Christopher Kings-Lynne
REL8_0_STABLE
Bruce Momjian 21 years ago
parent 465edca3ec
commit 45995219a0
5 changed files with 104 additions and 77 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 9
      doc/src/sgml/ref/pg_dumpall.sgml
  2. 5
      src/backend/utils/misc/guc.c
  3. 24
      src/bin/pg_dump/pg_backup_archiver.c
  4. 40
      src/bin/pg_dump/pg_dump.c
  5. 103
      src/bin/pg_dump/pg_dumpall.c

9
doc/src/sgml/ref/pg_dumpall.sgml
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@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/pg_dumpall.sgml,v 1.45 2004/07/12 14:35:43 momjian Exp $
$PostgreSQL: pgsql/doc/src/sgml/ref/pg_dumpall.sgml,v 1.46 2004/07/19 21:39:46 momjian Exp $
PostgreSQL documentation
-->
@ -280,11 +280,14 @@ PostgreSQL documentation
<term><option>--use-set-session-authorization</></term>
<listitem>
<para>
This option is obsolete but still accepted for backwards
compatibility with <application>pg_dump</application>.
Output SQL standard SET SESSION AUTHORIZATION commands instead
of OWNER TO commands. This makes the dump more standards compatible,
but depending on the history of the objects in the dump, may not
restore properly.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>

5
src/backend/utils/misc/guc.c
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@ -10,7 +10,7 @@
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.220 2004/07/19 02:47:10 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.221 2004/07/19 21:39:47 momjian Exp $
*
*--------------------------------------------------------------------
*/
@ -335,6 +335,9 @@ const char *const config_type_names[] =
* 6. Add it to src/bin/psql/tab-complete.c, if it's a USERSET option.
*
* 7. Don't forget to document the option.
*
* 8. If it's a new GUC_LIST option you must edit pg_dumpall.c to ensure
* it is not single quoted at dump time.
*/

24
src/bin/pg_dump/pg_backup_archiver.c
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@ -15,7 +15,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.89 2004/07/19 21:02:17 tgl Exp $
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.90 2004/07/19 21:39:47 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -2356,7 +2356,8 @@ _printTocEntry(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt, bool isDat
strcmp(te->desc, "TABLE") == 0 ||
strcmp(te->desc, "TYPE") == 0 ||
strcmp(te->desc, "VIEW") == 0 ||
strcmp(te->desc, "SEQUENCE") == 0
strcmp(te->desc, "SEQUENCE") == 0 ||
(strcmp(te->desc, "SCHEMA") == 0 && strcmp(te->tag, "public") == 0) /* Only public schema */
))
{
char *temp = _getObjectFromDropStmt(te->dropStmt, te->desc);
@ -2376,15 +2377,18 @@ _printTocEntry(ArchiveHandle *AH, TocEntry *te, RestoreOptions *ropt, bool isDat
/*
* Really crude hack for suppressing AUTHORIZATION clause of CREATE SCHEMA
* when --no-owner mode is selected. This is ugly, but I see no other
* good way ...
* good way ... Also, avoid dumping the public schema as it will already be
* created.
*/
if (AH->ropt && AH->ropt->noOwner && strcmp(te->desc, "SCHEMA") == 0)
{
ahprintf(AH, "CREATE SCHEMA %s;\n\n\n", te->tag);
}
else
{
ahprintf(AH, "%s\n\n", te->defn);
if (strcmp(te->tag, "public") != 0) {
if (AH->ropt && AH->ropt->noOwner && strcmp(te->desc, "SCHEMA") == 0)
{
ahprintf(AH, "CREATE SCHEMA %s;\n\n\n", te->tag);
}
else
{
ahprintf(AH, "%s\n\n", te->defn);
}
}
}
else if (isData) {

40
src/bin/pg_dump/pg_dump.c
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@ -12,7 +12,7 @@
* by PostgreSQL
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.379 2004/07/13 03:00:17 momjian Exp $
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dump.c,v 1.380 2004/07/19 21:39:48 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -1492,7 +1492,7 @@ getNamespaces(int *numNamespaces)
nsinfo[0].dobj.catId.tableoid = 0;
nsinfo[0].dobj.catId.oid = 0;
AssignDumpId(&nsinfo[0].dobj);
nsinfo[0].dobj.name = strdup("");
nsinfo[0].dobj.name = strdup("public");
nsinfo[0].usename = strdup("");
nsinfo[0].nspacl = strdup("");
nsinfo[0].nsptablespace = strdup("");
@ -4381,11 +4381,6 @@ dumpNamespace(Archive *fout, NamespaceInfo *nspinfo)
qnspname = strdup(fmtId(nspinfo->dobj.name));
/*
* If it's the PUBLIC namespace, suppress the CREATE SCHEMA record
* for it, since we expect PUBLIC to exist already in the
* destination database. But do emit ACL in case it's not standard,
* likewise comment.
*
* Note that ownership is shown in the AUTHORIZATION clause,
* while the archive entry is listed with empty owner (causing
* it to be emitted with SET SESSION AUTHORIZATION DEFAULT).
@ -4393,27 +4388,24 @@ dumpNamespace(Archive *fout, NamespaceInfo *nspinfo)
* users without CREATE SCHEMA privilege. Further hacking has
* to be applied for --no-owner mode, though!
*/
if (strcmp(nspinfo->dobj.name, "public") != 0)
{
appendPQExpBuffer(delq, "DROP SCHEMA %s;\n", qnspname);
appendPQExpBuffer(delq, "DROP SCHEMA %s;\n", qnspname);
appendPQExpBuffer(q, "CREATE SCHEMA %s AUTHORIZATION %s",
qnspname, fmtId(nspinfo->usename));
appendPQExpBuffer(q, "CREATE SCHEMA %s AUTHORIZATION %s",
qnspname, fmtId(nspinfo->usename));
/* Add tablespace qualifier, if not default */
if (strlen(nspinfo->nsptablespace) != 0)
appendPQExpBuffer(q, " TABLESPACE %s",
fmtId(nspinfo->nsptablespace));
/* Add tablespace qualifier, if not default */
if (strlen(nspinfo->nsptablespace) != 0)
appendPQExpBuffer(q, " TABLESPACE %s",
fmtId(nspinfo->nsptablespace));
appendPQExpBuffer(q, ";\n");
appendPQExpBuffer(q, ";\n");
ArchiveEntry(fout, nspinfo->dobj.catId, nspinfo->dobj.dumpId,
nspinfo->dobj.name,
NULL, "",
false, "SCHEMA", q->data, delq->data, NULL,
nspinfo->dobj.dependencies, nspinfo->dobj.nDeps,
NULL, NULL);
}
ArchiveEntry(fout, nspinfo->dobj.catId, nspinfo->dobj.dumpId,
nspinfo->dobj.name,
NULL, strcmp(nspinfo->dobj.name, "public") == 0 ? nspinfo->usename : "",
false, "SCHEMA", q->data, delq->data, NULL,
nspinfo->dobj.dependencies, nspinfo->dobj.nDeps,
NULL, NULL);
/* Dump Schema Comments */
resetPQExpBuffer(q);

103
src/bin/pg_dump/pg_dumpall.c
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@ -6,7 +6,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dumpall.c,v 1.44 2004/07/12 14:35:45 momjian Exp $
* $PostgreSQL: pgsql/src/bin/pg_dump/pg_dumpall.c,v 1.45 2004/07/19 21:39:48 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -44,7 +44,7 @@ static const char *progname;
static void help(void);
static void dumpUsers(PGconn *conn);
static void dumpUsers(PGconn *conn, bool initdbonly);
static void dumpGroups(PGconn *conn);
static void dumpTablespaces(PGconn *conn);
static void dumpCreateDB(PGconn *conn);
@ -257,7 +257,7 @@ main(int argc, char *argv[])
if (disable_triggers)
appendPQExpBuffer(pgdumpopts, " -X disable-triggers");
if (use_setsessauth)
/* no-op, still allowed for compatibility */ ;
appendPQExpBuffer(pgdumpopts, " -X use-set-session-authorization");
if (optind < argc)
{
@ -279,18 +279,19 @@ main(int argc, char *argv[])
if (!data_only)
{
dumpUsers(conn);
/* Dump all users excluding the initdb user */
dumpUsers(conn, false);
dumpGroups(conn);
if (server_version >= 70500)
dumpTablespaces(conn);
if (!globals_only)
dumpCreateDB(conn);
/* Dump alter command for initdb user */
dumpUsers(conn, true);
}
if (!globals_only)
{
if (!data_only)
dumpCreateDB(conn);
dumpDatabases(conn);
}
PQfinish(conn);
@ -310,26 +311,29 @@ help(void)
printf(_("Usage:\n"));
printf(_(" %s [OPTION]...\n"), progname);
printf(_("\nOptions:\n"));
printf(_("\nGeneral options:\n"));
printf(_(" -i, --ignore-version proceed even when server version mismatches\n"
" pg_dumpall version\n"));
printf(_(" --help show this help, then exit\n"));
printf(_(" --version output version information, then exit\n"));
printf(_("\nOptions controlling the output content:\n"));
printf(_(" -a, --data-only dump only the data, not the schema\n"));
printf(_(" -c, --clean clean (drop) databases prior to create\n"));
printf(_(" -d, --inserts dump data as INSERT, rather than COPY, commands\n"));
printf(_(" -D, --column-inserts dump data as INSERT commands with column names\n"));
printf(_(" -g, --globals-only dump only global objects, no databases\n"));
printf(_(" -i, --ignore-version proceed even when server version mismatches\n"
" pg_dumpall version\n"));
printf(_(" -s, --schema-only dump only the schema, no data\n"));
printf(_(" -S, --superuser=NAME specify the superuser user name to use in the dump\n"));
printf(_(" -o, --oids include OIDs in dump\n"));
printf(_(" -O, --no-owner do not output commands to set object ownership\n"));
printf(_(" -v, --verbose verbose mode\n"));
printf(_(" -s, --schema-only dump only the schema, no data\n"));
printf(_(" -S, --superuser=NAME specify the superuser user name to use in the dump\n"));
printf(_(" -x, --no-privileges do not dump privileges (grant/revoke)\n"));
printf(_(" -X disable-dollar-quoting, --disable-dollar-quoting\n"
" disable dollar quoting, use SQL standard quoting\n"));
printf(_(" -X disable-triggers, --disable-triggers\n"
" disable triggers during data-only restore\n"));
printf(_(" --help show this help, then exit\n"));
printf(_(" --version output version information, then exit\n"));
" disable triggers during data-only restore\n"));
printf(_(" -X use-set-session-authorization, --use-set-session-authorization\n"
" use SESSION AUTHORIZATION commands instead of\n"
" OWNER TO commands\n"));
printf(_("\nConnection options:\n"));
printf(_(" -h, --host=HOSTNAME database server host or socket directory\n"));
@ -344,39 +348,52 @@ help(void)
/*
* Dump users (but not the user created by initdb).
* Dump users
* Is able to dump all non initdb users or just the initdb user.
*/
static void
dumpUsers(PGconn *conn)
dumpUsers(PGconn *conn, bool initdbonly)
{
PGresult *res;
int i;
printf("--\n-- Users\n--\n\n");
printf("DELETE FROM pg_shadow WHERE usesysid <> (SELECT datdba FROM pg_database WHERE datname = 'template0');\n\n");
if (server_version >= 70100)
res = executeQuery(conn,
"SELECT usename, usesysid, passwd, usecreatedb, "
"usesuper, valuntil "
"FROM pg_shadow "
"WHERE usesysid <> (SELECT datdba FROM pg_database WHERE datname = 'template0')");
"usesuper, valuntil, "
"(usesysid = (SELECT datdba FROM pg_database WHERE datname = 'template0')) AS clusterowner "
"FROM pg_shadow");
else
res = executeQuery(conn,
"SELECT usename, usesysid, passwd, usecreatedb, "
"usesuper, valuntil "
"FROM pg_shadow "
"WHERE usesysid <> (SELECT datdba FROM pg_database WHERE datname = 'template1')");
"usesuper, valuntil, "
"(usesysid = (SELECT datdba FROM pg_database WHERE datname = 'template1')) AS clusterowner "
"FROM pg_shadow");
if (PQntuples(res) > 0 || (!initdbonly && output_clean))
printf("--\n-- Users\n--\n\n");
if (!initdbonly && output_clean)
printf("DELETE FROM pg_shadow WHERE usesysid <> (SELECT datdba FROM pg_database WHERE datname = 'template0');\n\n");
for (i = 0; i < PQntuples(res); i++)
{
PQExpBuffer buf = createPQExpBuffer();
const char *username;
bool clusterowner;
PQExpBuffer buf = createPQExpBuffer();
username = PQgetvalue(res, i, 0);
appendPQExpBuffer(buf, "CREATE USER %s WITH SYSID %s",
fmtId(username),
PQgetvalue(res, i, 1));
clusterowner = (strcmp(PQgetvalue(res, i, 6), "t") == 0);
/* Check which pass we're on */
if ((initdbonly && !clusterowner) || (!initdbonly && clusterowner)) continue;
/* Dump ALTER USER for the cluster owner and CREATE USER for all other users */
if (!clusterowner)
appendPQExpBuffer(buf, "CREATE USER %s WITH SYSID %s",
fmtId(username),
PQgetvalue(res, i, 1));
else
appendPQExpBuffer(buf, "ALTER USER %s WITH",
fmtId(username));
if (!PQgetisnull(res, i, 2))
{
@ -422,11 +439,13 @@ dumpGroups(PGconn *conn)
PGresult *res;
int i;
printf("--\n-- Groups\n--\n\n");
printf("DELETE FROM pg_group;\n\n");
res = executeQuery(conn, "SELECT groname, grosysid, grolist FROM pg_group");
if (PQntuples(res) > 0 || output_clean)
printf("--\n-- Groups\n--\n\n");
if (output_clean)
printf("DELETE FROM pg_group;\n\n");
for (i = 0; i < PQntuples(res); i++)
{
PQExpBuffer buf = createPQExpBuffer();
@ -478,8 +497,6 @@ dumpTablespaces(PGconn *conn)
PGresult *res;
int i;
printf("--\n-- Tablespaces\n--\n\n");
/*
* Get all tablespaces except built-in ones (which we assume are named
* pg_xxx)
@ -489,6 +506,9 @@ dumpTablespaces(PGconn *conn)
"spclocation, spcacl "
"FROM pg_catalog.pg_tablespace "
"WHERE spcname NOT LIKE 'pg\\_%'");
if (PQntuples(res) > 0)
printf("--\n-- Tablespaces\n--\n\n");
for (i = 0; i < PQntuples(res); i++)
{
@ -758,7 +778,12 @@ makeAlterConfigCommand(const char *arrayitem, const char *type, const char *name
*pos = 0;
appendPQExpBuffer(buf, "ALTER %s %s ", type, fmtId(name));
appendPQExpBuffer(buf, "SET %s TO ", fmtId(mine));
appendStringLiteral(buf, pos + 1, false);
/* Some GUC variable names are 'LIST' type and hence must not be quoted. */
if (strcasecmp(mine, "DateStyle") == 0
|| strcasecmp(mine, "search_path") == 0)
appendPQExpBuffer(buf, "%s", pos + 1);
else
appendStringLiteral(buf, pos + 1, false);
appendPQExpBuffer(buf, ";\n");
printf("%s", buf->data);

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