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Commit2eda8df

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Make it possibly to specify GUC params per user and per database.
Create a new catalog pg_db_role_setting where they are now stored, and betterencapsulate the code that deals with settings into its realm. The olddatconfig and rolconfig columns are removed.psql has gained a \drds command to display the settings.Backwards compatibility warning: while the backwards-compatible system viewsstill have the config columns, they no longer completely represent theconfiguration for a user or database.Catalog version bumped.
1 parent07cefdf commit2eda8df

32 files changed

+738
-279
lines changed

‎doc/src/sgml/catalogs.sgml‎

Lines changed: 65 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,4 @@
1-
<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.208 2009/10/05 19:24:32 tgl Exp $ -->
1+
<!-- $PostgreSQL: pgsql/doc/src/sgml/catalogs.sgml,v 2.209 2009/10/07 22:14:14 alvherre Exp $ -->
22
<!--
33
Documentation of the system catalogs, directed toward PostgreSQL developers
44
-->
@@ -203,6 +203,11 @@
203203
<entry>query rewrite rules</entry>
204204
</row>
205205

206+
<row>
207+
<entry><link linkend="catalog-pg-db-role-setting"><structname>pg_db_role_setting</structname></link></entry>
208+
<entry>per-role and per-database settings</entry>
209+
</row>
210+
206211
<row>
207212
<entry><link linkend="catalog-pg-shdepend"><structname>pg_shdepend</structname></link></entry>
208213
<entry>dependencies on shared objects</entry>
@@ -2136,13 +2141,6 @@
21362141
</entry>
21372142
</row>
21382143

2139-
<row>
2140-
<entry><structfield>datconfig</structfield></entry>
2141-
<entry><type>text[]</type></entry>
2142-
<entry></entry>
2143-
<entry>Session defaults for run-time configuration variables</entry>
2144-
</row>
2145-
21462144
<row>
21472145
<entry><structfield>datacl</structfield></entry>
21482146
<entry><type>aclitem[]</type></entry>
@@ -4106,6 +4104,65 @@
41064104

41074105
</sect1>
41084106

4107+
<sect1 id="catalog-pg-db-role-setting">
4108+
<title><structname>pg_db_role_setting</structname></title>
4109+
4110+
<indexterm zone="catalog-pg-db-role-setting">
4111+
<primary>pg_db_role_setting</primary>
4112+
</indexterm>
4113+
4114+
<para>
4115+
The catalog <structname>pg_db_role_setting</structname> records the default
4116+
values that have been set for run-time configuration variables,
4117+
for each role and database combination.
4118+
</para>
4119+
4120+
<para>
4121+
Unlike most system catalogs, <structname>pg_db_role_setting</structname>
4122+
is shared across all databases of a cluster: there is only one
4123+
copy of <structname>pg_db_role_setting</structname> per cluster, not
4124+
one per database.
4125+
</para>
4126+
4127+
<table>
4128+
<title><structname>pg_db_role_setting</> Columns</title>
4129+
4130+
<tgroup cols="4">
4131+
<thead>
4132+
<row>
4133+
<entry>Name</entry>
4134+
<entry>Type</entry>
4135+
<entry>References</entry>
4136+
<entry>Description</entry>
4137+
</row>
4138+
</thead>
4139+
4140+
<tbody>
4141+
<row>
4142+
<entry><structfield>setdatabase</structfield></entry>
4143+
<entry><type>oid</type></entry>
4144+
<entry><literal><link linkend="catalog-pg-database"><structname>pg_database</structname></link>.oid</literal></entry>
4145+
<entry>The OID of the database the setting is applicable to, or zero if not database-specific</entry>
4146+
</row>
4147+
4148+
<row>
4149+
<entry><structfield>setrole</structfield></entry>
4150+
<entry><type>oid</type></entry>
4151+
<entry><literal><link linkend="catalog-pg-authid"><structname>pg_authid</structname></link>.oid</literal></entry>
4152+
<entry>The OID of the role the setting is applicable to, or zero if not role-specific</entry>
4153+
</row>
4154+
4155+
<row>
4156+
<entry><structfield>setconfig</structfield></entry>
4157+
<entry><type>text[]</type></entry>
4158+
<entry></entry>
4159+
<entry>Defaults for run-time configuration variables</entry>
4160+
</row>
4161+
</tbody>
4162+
</tgroup>
4163+
</table>
4164+
</sect1>
4165+
41094166

41104167
<sect1 id="catalog-pg-shdepend">
41114168
<title><structname>pg_shdepend</structname></title>
@@ -6557,13 +6614,6 @@
65576614
NULL if no expiration</entry>
65586615
</row>
65596616

6560-
<row>
6561-
<entry><structfield>rolconfig</structfield></entry>
6562-
<entry><type>text[]</type></entry>
6563-
<entry></entry>
6564-
<entry>Session defaults for run-time configuration variables</entry>
6565-
</row>
6566-
65676617
<row>
65686618
<entry><structfield>oid</structfield></entry>
65696619
<entry><type>oid</type></entry>

‎doc/src/sgml/ref/alter_role.sgml‎

Lines changed: 32 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
<!--
2-
$PostgreSQL: pgsql/doc/src/sgml/ref/alter_role.sgml,v 1.14 2009/09/19 10:23:26 petere Exp $
2+
$PostgreSQL: pgsql/doc/src/sgml/ref/alter_role.sgml,v 1.15 2009/10/07 22:14:16 alvherre Exp $
33
PostgreSQL documentation
44
-->
55

@@ -37,10 +37,10 @@ ALTER ROLE <replaceable class="PARAMETER">name</replaceable> [ [ WITH ] <replace
3737

3838
ALTER ROLE <replaceable class="PARAMETER">name</replaceable> RENAME TO <replaceable>new_name</replaceable>
3939

40-
ALTER ROLE <replaceable class="PARAMETER">name</replaceable> SET <replaceable>configuration_parameter</replaceable> { TO | = } { <replaceable>value</replaceable> | DEFAULT }
41-
ALTER ROLE <replaceable class="PARAMETER">name</replaceable> SET <replaceable>configuration_parameter</replaceable> FROM CURRENT
42-
ALTER ROLE <replaceable class="PARAMETER">name</replaceable> RESET <replaceable>configuration_parameter</replaceable>
43-
ALTER ROLE <replaceable class="PARAMETER">name</replaceable> RESET ALL
40+
ALTER ROLE <replaceable class="PARAMETER">name</replaceable>[ IN DATABASE <replaceable class="PARAMETER">database_name</replaceable> ]SET <replaceable>configuration_parameter</replaceable> { TO | = } { <replaceable>value</replaceable> | DEFAULT }
41+
ALTER ROLE <replaceable class="PARAMETER">name</replaceable>[ IN DATABASE <replaceable class="PARAMETER">database_name</replaceable> ]SET <replaceable>configuration_parameter</replaceable> FROM CURRENT
42+
ALTER ROLE <replaceable class="PARAMETER">name</replaceable>[ IN DATABASE <replaceable class="PARAMETER">database_name</replaceable> ]RESET <replaceable>configuration_parameter</replaceable>
43+
ALTER ROLE <replaceable class="PARAMETER">name</replaceable>[ IN DATABASE <replaceable class="PARAMETER">database_name</replaceable> ]RESET ALL
4444
</synopsis>
4545
</refsynopsisdiv>
4646

@@ -80,14 +80,16 @@ ALTER ROLE <replaceable class="PARAMETER">name</replaceable> RESET ALL
8080
</para>
8181

8282
<para>
83-
The remaining variants change a role's session default for a
84-
specified configuration variable. Whenever the role subsequently
83+
The remaining variants change a role's session default for a configuration variable
84+
for all databases or, when the <literal>IN DATABASE</literal> clause is specified,
85+
for the named database. Whenever the role subsequently
8586
starts a new session, the specified value becomes the session
8687
default, overriding whatever setting is present in
8788
<filename>postgresql.conf</> or has been received from the postgres
8889
command line. This only happens at login time, so configuration
8990
settings associated with a role to which you've <xref
90-
linkend="sql-set-role" endterm="sql-set-role-title"> will be ignored.
91+
linkend="sql-set-role" endterm="sql-set-role-title"> will be ignored. Settings set to
92+
a role directly are overridden by any database specific settings attached to a role.
9193
Superusers can change anyone's session defaults. Roles having
9294
<literal>CREATEROLE</> privilege can change defaults for non-superuser
9395
roles. Certain variables cannot be set this way, or can only be
@@ -145,6 +147,15 @@ ALTER ROLE <replaceable class="PARAMETER">name</replaceable> RESET ALL
145147
</listitem>
146148
</varlistentry>
147149

150+
<varlistentry>
151+
<term><replaceable>database_name</replaceable></term>
152+
<listitem>
153+
<para>
154+
The name of the database the configuration variable should be set in.
155+
</para>
156+
</listitem>
157+
</varlistentry>
158+
148159
<varlistentry>
149160
<term><replaceable>configuration_parameter</replaceable></term>
150161
<term><replaceable>value</replaceable></term>
@@ -159,6 +170,8 @@ ALTER ROLE <replaceable class="PARAMETER">name</replaceable> RESET ALL
159170
<literal>RESET ALL</literal> to clear all role-specific settings.
160171
<literal>SET FROM CURRENT</> saves the session's current value of
161172
the parameter as the role-specific value.
173+
If used in conjunction with <literal>IN DATABASE</literal>, the configuration
174+
parameter is set or removed for the given role and database only.
162175
</para>
163176

164177
<para>
@@ -207,8 +220,8 @@ ALTER ROLE <replaceable class="PARAMETER">name</replaceable> RESET ALL
207220
It is also possible to tie a
208221
session default to a specific database rather than to a role; see
209222
<xref linkend="sql-alterdatabase" endterm="sql-alterdatabase-title">.
210-
Role-specific settings overridedatabase-specific
211-
ones if there is a conflict.
223+
If there is a conflict, database-role-specific settings overriderole-specific
224+
ones, which in turn override database-specific ones.
212225
</para>
213226
</refsect1>
214227

@@ -261,6 +274,15 @@ ALTER ROLE miriam CREATEROLE CREATEDB;
261274

262275
<programlisting>
263276
ALTER ROLE worker_bee SET maintenance_work_mem = 100000;
277+
</programlisting>
278+
</para>
279+
280+
<para>
281+
Give a role a non-default, database-specific setting of the
282+
<xref linkend="guc-client-min-messages"> parameter:
283+
284+
<programlisting>
285+
ALTER ROLE fred IN DATABASE devel SET client_min_messages = DEBUG;
264286
</programlisting>
265287
</para>
266288
</refsect1>

‎src/backend/catalog/Makefile‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -2,7 +2,7 @@
22
#
33
# Makefile for backend/catalog
44
#
5-
# $PostgreSQL: pgsql/src/backend/catalog/Makefile,v 1.72 2009/10/05 19:24:34 tgl Exp $
5+
# $PostgreSQL: pgsql/src/backend/catalog/Makefile,v 1.73 2009/10/07 22:14:16 alvherre Exp $
66
#
77
#-------------------------------------------------------------------------
88

@@ -13,7 +13,7 @@ include $(top_builddir)/src/Makefile.global
1313
OBJS = catalog.o dependency.o heap.o index.o indexing.o namespace.o aclchk.o\
1414
pg_aggregate.o pg_constraint.o pg_conversion.o pg_depend.o pg_enum.o\
1515
pg_inherits.o pg_largeobject.o pg_namespace.o pg_operator.o pg_proc.o\
16-
pg_shdepend.o pg_type.o storage.o toasting.o
16+
pg_db_role_setting.opg_shdepend.o pg_type.o storage.o toasting.o
1717

1818
BKIFILES = postgres.bki postgres.description postgres.shdescription
1919

@@ -32,7 +32,7 @@ POSTGRES_BKI_SRCS = $(addprefix $(top_srcdir)/src/include/catalog/,\
3232
pg_language.h pg_largeobject.h pg_aggregate.h pg_statistic.h \
3333
pg_rewrite.h pg_trigger.h pg_listener.h pg_description.h pg_cast.h \
3434
pg_enum.h pg_namespace.h pg_conversion.h pg_depend.h \
35-
pg_database.h pg_tablespace.h pg_pltemplate.h \
35+
pg_database.hpg_db_role_setting.hpg_tablespace.h pg_pltemplate.h \
3636
pg_authid.h pg_auth_members.h pg_shdepend.h pg_shdescription.h \
3737
pg_ts_config.h pg_ts_config_map.h pg_ts_dict.h \
3838
pg_ts_parser.h pg_ts_template.h \

‎src/backend/catalog/catalog.c‎

Lines changed: 9 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -10,7 +10,7 @@
1010
*
1111
*
1212
* IDENTIFICATION
13-
* $PostgreSQL: pgsql/src/backend/catalog/catalog.c,v 1.83 2009/06/1114:48:54 momjian Exp $
13+
* $PostgreSQL: pgsql/src/backend/catalog/catalog.c,v 1.84 2009/10/07 22:14:18 alvherre Exp $
1414
*
1515
*-------------------------------------------------------------------------
1616
*/
@@ -31,6 +31,7 @@
3131
#include"catalog/pg_database.h"
3232
#include"catalog/pg_namespace.h"
3333
#include"catalog/pg_pltemplate.h"
34+
#include"catalog/pg_db_role_setting.h"
3435
#include"catalog/pg_shdepend.h"
3536
#include"catalog/pg_shdescription.h"
3637
#include"catalog/pg_tablespace.h"
@@ -306,7 +307,8 @@ IsSharedRelation(Oid relationId)
306307
relationId==PLTemplateRelationId||
307308
relationId==SharedDescriptionRelationId||
308309
relationId==SharedDependRelationId||
309-
relationId==TableSpaceRelationId)
310+
relationId==TableSpaceRelationId||
311+
relationId==DbRoleSettingRelationId)
310312
return true;
311313
/* These are their indexes (see indexing.h) */
312314
if (relationId==AuthIdRolnameIndexId||
@@ -320,15 +322,18 @@ IsSharedRelation(Oid relationId)
320322
relationId==SharedDependDependerIndexId||
321323
relationId==SharedDependReferenceIndexId||
322324
relationId==TablespaceOidIndexId||
323-
relationId==TablespaceNameIndexId)
325+
relationId==TablespaceNameIndexId||
326+
relationId==DbRoleSettingDatidRolidIndexId)
324327
return true;
325328
/* These are their toast tables and toast indexes (see toasting.h) */
326329
if (relationId==PgAuthidToastTable||
327330
relationId==PgAuthidToastIndex||
328331
relationId==PgDatabaseToastTable||
329332
relationId==PgDatabaseToastIndex||
330333
relationId==PgShdescriptionToastTable||
331-
relationId==PgShdescriptionToastIndex)
334+
relationId==PgShdescriptionToastIndex||
335+
relationId==PgDbRoleSettingToastTable||
336+
relationId==PgDbRoleSettingToastIndex)
332337
return true;
333338
return false;
334339
}

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