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postgres/src/include/utils/guc.h

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In the continuing saga of FE/BE protocol revisions, add reporting of initial values and runtime changes in selected parameters. This gets rid of the need for an initial 'select pg_client_encoding()' query in libpq, bringing us back to one message transmitted in each direction for a standard connection startup. To allow server version to be sent using the same GUC mechanism that handles other parameters, invent the concept of a never-settable GUC parameter: you can 'show server_version' but it's not settable by any GUC input source. Create 'lc_collate' and 'lc_ctype' never-settable parameters so that people can find out these settings without need for pg_controldata. (These side ideas were all discussed some time ago in pgsql-hackers, but not yet implemented.)
23 years ago
/*--------------------------------------------------------------------
The heralded `Grand Unified Configuration scheme' (GUC) That means you can now set your options in either or all of $PGDATA/configuration, some postmaster option (--enable-fsync=off), or set a SET command. The list of options is in backend/utils/misc/guc.c, documentation will be written post haste. pg_options is gone, so is that pq_geqo config file. Also removed were backend -K, -Q, and -T options (no longer applicable, although -d0 does the same as -Q). Added to configure an --enable-syslog option. changed all callers from TPRINTF to elog(DEBUG)
26 years ago
* guc.h
*
* External declarations pertaining to backend/utils/misc/guc.c and
* backend/utils/misc/guc-file.l
*
Fix some copyright notices that weren't updated. Improve copyright tool so it won't miss 'em again.
22 years ago
* Copyright (c) 2000-2003, PostgreSQL Global Development Group
In the continuing saga of FE/BE protocol revisions, add reporting of initial values and runtime changes in selected parameters. This gets rid of the need for an initial 'select pg_client_encoding()' query in libpq, bringing us back to one message transmitted in each direction for a standard connection startup. To allow server version to be sent using the same GUC mechanism that handles other parameters, invent the concept of a never-settable GUC parameter: you can 'show server_version' but it's not settable by any GUC input source. Create 'lc_collate' and 'lc_ctype' never-settable parameters so that people can find out these settings without need for pg_controldata. (These side ideas were all discussed some time ago in pgsql-hackers, but not yet implemented.)
23 years ago
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
> >>1. change the type of "log_statement" option from boolean to string, > >>with allowed values of "all, mod, ddl, none" with default "none". OK, here is a patch that implements #1. Here is sample output: test=> set client_min_messages = 'log'; SET test=> set log_statement = 'mod'; SET test=> select 1; ?column? ---------- 1 (1 row) test=> update test set x=1; LOG: statement: update test set x=1; ERROR: relation "test" does not exist test=> update test set x=1; LOG: statement: update test set x=1; ERROR: relation "test" does not exist test=> copy test from '/tmp/x'; LOG: statement: copy test from '/tmp/x'; ERROR: relation "test" does not exist test=> copy test to '/tmp/x'; ERROR: relation "test" does not exist test=> prepare xx as select 1; PREPARE test=> prepare xx as update x set y=1; LOG: statement: prepare xx as update x set y=1; ERROR: relation "x" does not exist test=> explain analyze select 1;; QUERY PLAN ------------------------------------------------------------------------------------ Result (cost=0.00..0.01 rows=1 width=0) (actual time=0.006..0.007 rows=1 loops=1) Total runtime: 0.046 ms (2 rows) test=> explain analyze update test set x=1; LOG: statement: explain analyze update test set x=1; ERROR: relation "test" does not exist test=> explain update test set x=1; ERROR: relation "test" does not exist It checks PREPARE and EXECUTE ANALYZE too. The log_statement values are 'none', 'mod', 'ddl', and 'all'. For 'all', it prints before the query is parsed, and for ddl/mod, it does it right after parsing using the node tag (or command tag for CREATE/ALTER/DROP), so any non-parse errors will print after the log line.
22 years ago
* $PostgreSQL: pgsql/src/include/utils/guc.h,v 1.45 2004/04/07 05:05:50 momjian Exp $
In the continuing saga of FE/BE protocol revisions, add reporting of initial values and runtime changes in selected parameters. This gets rid of the need for an initial 'select pg_client_encoding()' query in libpq, bringing us back to one message transmitted in each direction for a standard connection startup. To allow server version to be sent using the same GUC mechanism that handles other parameters, invent the concept of a never-settable GUC parameter: you can 'show server_version' but it's not settable by any GUC input source. Create 'lc_collate' and 'lc_ctype' never-settable parameters so that people can find out these settings without need for pg_controldata. (These side ideas were all discussed some time ago in pgsql-hackers, but not yet implemented.)
23 years ago
*--------------------------------------------------------------------
The heralded `Grand Unified Configuration scheme' (GUC) That means you can now set your options in either or all of $PGDATA/configuration, some postmaster option (--enable-fsync=off), or set a SET command. The list of options is in backend/utils/misc/guc.c, documentation will be written post haste. pg_options is gone, so is that pq_geqo config file. Also removed were backend -K, -Q, and -T options (no longer applicable, although -d0 does the same as -Q). Added to configure an --enable-syslog option. changed all callers from TPRINTF to elog(DEBUG)
26 years ago
*/
#ifndef GUC_H
#define GUC_H
Merge the last few variable.c configuration variables into the generic GUC support. It's now possible to set datestyle, timezone, and client_encoding from postgresql.conf and per-database or per-user settings. Also, implement rollback of SET commands that occur in a transaction that later fails. Create a SET LOCAL var = value syntax that sets the variable only for the duration of the current transaction. All per previous discussions in pghackers.
24 years ago
#include "nodes/pg_list.h"
Restructure command destination handling so that we pass around DestReceiver pointers instead of just CommandDest values. The DestReceiver is made at the point where the destination is selected, rather than deep inside the executor. This cleans up the original kluge implementation of tstoreReceiver.c, and makes it easy to support retrieving results from utility statements inside portals. Thus, you can now do fun things like Bind and Execute a FETCH or EXPLAIN command, and it'll all work as expected (e.g., you can Describe the portal, or use Execute's count parameter to suspend the output partway through). Implementation involves stuffing the utility command's output into a Tuplestore, which would be kind of annoying for huge output sets, but should be quite acceptable for typical uses of utility commands.
23 years ago
#include "tcop/dest.h"
User and database-specific session defaults for run-time configuration variables. New commands ALTER DATABASE ... SET and ALTER USER ... SET.
24 years ago
#include "utils/array.h"
Merge the last few variable.c configuration variables into the generic GUC support. It's now possible to set datestyle, timezone, and client_encoding from postgresql.conf and per-database or per-user settings. Also, implement rollback of SET commands that occur in a transaction that later fails. Create a SET LOCAL var = value syntax that sets the variable only for the duration of the current transaction. All per previous discussions in pghackers.
24 years ago
The heralded `Grand Unified Configuration scheme' (GUC) That means you can now set your options in either or all of $PGDATA/configuration, some postmaster option (--enable-fsync=off), or set a SET command. The list of options is in backend/utils/misc/guc.c, documentation will be written post haste. pg_options is gone, so is that pq_geqo config file. Also removed were backend -K, -Q, and -T options (no longer applicable, although -d0 does the same as -Q). Added to configure an --enable-syslog option. changed all callers from TPRINTF to elog(DEBUG)
26 years ago
/*
Second pass over run-time configuration system. Adjust priorities on some option settings. Sort out SIGHUP vs BACKEND -- there is no total ordering here, so make explicit checks. Add comments explaining all of this. Removed permissions check on SHOW command. Add examine_subclass to the game, rename to SQL_inheritance to fit the official data model better. Adjust documentation. Standalone backend needs to reset all options before it starts. To facilitate that, have IsUnderPostmaster be set by the postmaster itself, don't wait for the magic -p switch. Also make sure that all environment variables and argv's survive init_ps_display(). Use strdup where necessary. Have initdb make configuration files (postgresql.conf, pg_hba.conf) mode 0600 -- having configuration files is no fun if you can't edit them.
26 years ago
* Certain options can only be set at certain times. The rules are
* like this:
*
In the continuing saga of FE/BE protocol revisions, add reporting of initial values and runtime changes in selected parameters. This gets rid of the need for an initial 'select pg_client_encoding()' query in libpq, bringing us back to one message transmitted in each direction for a standard connection startup. To allow server version to be sent using the same GUC mechanism that handles other parameters, invent the concept of a never-settable GUC parameter: you can 'show server_version' but it's not settable by any GUC input source. Create 'lc_collate' and 'lc_ctype' never-settable parameters so that people can find out these settings without need for pg_controldata. (These side ideas were all discussed some time ago in pgsql-hackers, but not yet implemented.)
23 years ago
* INTERNAL options cannot be set by the user at all, but only through
* internal processes ("server_version" is an example). These are GUC
* variables only so they can be shown by SHOW, etc.
*
Second pass over run-time configuration system. Adjust priorities on some option settings. Sort out SIGHUP vs BACKEND -- there is no total ordering here, so make explicit checks. Add comments explaining all of this. Removed permissions check on SHOW command. Add examine_subclass to the game, rename to SQL_inheritance to fit the official data model better. Adjust documentation. Standalone backend needs to reset all options before it starts. To facilitate that, have IsUnderPostmaster be set by the postmaster itself, don't wait for the magic -p switch. Also make sure that all environment variables and argv's survive init_ps_display(). Use strdup where necessary. Have initdb make configuration files (postgresql.conf, pg_hba.conf) mode 0600 -- having configuration files is no fun if you can't edit them.
26 years ago
* POSTMASTER options can only be set when the postmaster starts,
* either from the configuration file or the command line.
*
* SIGHUP options can only be set at postmaster startup or by changing
* the configuration file and sending the HUP signal to the postmaster
* or a backend process. (Notice that the signal receipt will not be
In the continuing saga of FE/BE protocol revisions, add reporting of initial values and runtime changes in selected parameters. This gets rid of the need for an initial 'select pg_client_encoding()' query in libpq, bringing us back to one message transmitted in each direction for a standard connection startup. To allow server version to be sent using the same GUC mechanism that handles other parameters, invent the concept of a never-settable GUC parameter: you can 'show server_version' but it's not settable by any GUC input source. Create 'lc_collate' and 'lc_ctype' never-settable parameters so that people can find out these settings without need for pg_controldata. (These side ideas were all discussed some time ago in pgsql-hackers, but not yet implemented.)
23 years ago
* evaluated immediately. The postmaster and the backend check it at a
Second pass over run-time configuration system. Adjust priorities on some option settings. Sort out SIGHUP vs BACKEND -- there is no total ordering here, so make explicit checks. Add comments explaining all of this. Removed permissions check on SHOW command. Add examine_subclass to the game, rename to SQL_inheritance to fit the official data model better. Adjust documentation. Standalone backend needs to reset all options before it starts. To facilitate that, have IsUnderPostmaster be set by the postmaster itself, don't wait for the magic -p switch. Also make sure that all environment variables and argv's survive init_ps_display(). Use strdup where necessary. Have initdb make configuration files (postgresql.conf, pg_hba.conf) mode 0600 -- having configuration files is no fun if you can't edit them.
26 years ago
* certain point in their main loop. It's safer to wait than to read a
* file asynchronously.)
*
Allow the postmaster to accept changes in PGC_BACKEND GUC variables from the config file, so that these changes will propagate to backends started later. Already-started backends continue to ignore changes in these variables.
24 years ago
* BACKEND options can only be set at postmaster startup, from the
In the continuing saga of FE/BE protocol revisions, add reporting of initial values and runtime changes in selected parameters. This gets rid of the need for an initial 'select pg_client_encoding()' query in libpq, bringing us back to one message transmitted in each direction for a standard connection startup. To allow server version to be sent using the same GUC mechanism that handles other parameters, invent the concept of a never-settable GUC parameter: you can 'show server_version' but it's not settable by any GUC input source. Create 'lc_collate' and 'lc_ctype' never-settable parameters so that people can find out these settings without need for pg_controldata. (These side ideas were all discussed some time ago in pgsql-hackers, but not yet implemented.)
23 years ago
* configuration file, or by client request in the connection startup
* packet (e.g., from libpq's PGOPTIONS variable). Furthermore, an
* already-started backend will ignore changes to such an option in the
pgindent run.
22 years ago
* configuration file. The idea is that these options are fixed for a
In the continuing saga of FE/BE protocol revisions, add reporting of initial values and runtime changes in selected parameters. This gets rid of the need for an initial 'select pg_client_encoding()' query in libpq, bringing us back to one message transmitted in each direction for a standard connection startup. To allow server version to be sent using the same GUC mechanism that handles other parameters, invent the concept of a never-settable GUC parameter: you can 'show server_version' but it's not settable by any GUC input source. Create 'lc_collate' and 'lc_ctype' never-settable parameters so that people can find out these settings without need for pg_controldata. (These side ideas were all discussed some time ago in pgsql-hackers, but not yet implemented.)
23 years ago
* given backend once it's started, but they can vary across backends.
Second pass over run-time configuration system. Adjust priorities on some option settings. Sort out SIGHUP vs BACKEND -- there is no total ordering here, so make explicit checks. Add comments explaining all of this. Removed permissions check on SHOW command. Add examine_subclass to the game, rename to SQL_inheritance to fit the official data model better. Adjust documentation. Standalone backend needs to reset all options before it starts. To facilitate that, have IsUnderPostmaster be set by the postmaster itself, don't wait for the magic -p switch. Also make sure that all environment variables and argv's survive init_ps_display(). Use strdup where necessary. Have initdb make configuration files (postgresql.conf, pg_hba.conf) mode 0600 -- having configuration files is no fun if you can't edit them.
26 years ago
*
* SUSET options can be set at postmaster startup, with the SIGHUP
* mechanism, or from SQL if you're a superuser. These options cannot
In the continuing saga of FE/BE protocol revisions, add reporting of initial values and runtime changes in selected parameters. This gets rid of the need for an initial 'select pg_client_encoding()' query in libpq, bringing us back to one message transmitted in each direction for a standard connection startup. To allow server version to be sent using the same GUC mechanism that handles other parameters, invent the concept of a never-settable GUC parameter: you can 'show server_version' but it's not settable by any GUC input source. Create 'lc_collate' and 'lc_ctype' never-settable parameters so that people can find out these settings without need for pg_controldata. (These side ideas were all discussed some time ago in pgsql-hackers, but not yet implemented.)
23 years ago
* be set in the connection startup packet, because when it is processed
* we don't yet know if the user is a superuser.
Second pass over run-time configuration system. Adjust priorities on some option settings. Sort out SIGHUP vs BACKEND -- there is no total ordering here, so make explicit checks. Add comments explaining all of this. Removed permissions check on SHOW command. Add examine_subclass to the game, rename to SQL_inheritance to fit the official data model better. Adjust documentation. Standalone backend needs to reset all options before it starts. To facilitate that, have IsUnderPostmaster be set by the postmaster itself, don't wait for the magic -p switch. Also make sure that all environment variables and argv's survive init_ps_display(). Use strdup where necessary. Have initdb make configuration files (postgresql.conf, pg_hba.conf) mode 0600 -- having configuration files is no fun if you can't edit them.
26 years ago
*
Add new USERLIMIT GUC source level so certain options can be disabled or increased only by super-users. This fixes problems caused by making certain variables SUSET for security reasons.
23 years ago
* USERLIMIT options can only be manipulated in certain ways by
Code review for recent GUC changes --- try to make it less obvious that these things were added at different times by different people ;-). Includes Aizaz Ahmed's patch to remove duplicate array in help_config.c.
22 years ago
* non-superusers.
Add new USERLIMIT GUC source level so certain options can be disabled or increased only by super-users. This fixes problems caused by making certain variables SUSET for security reasons.
23 years ago
*
Second pass over run-time configuration system. Adjust priorities on some option settings. Sort out SIGHUP vs BACKEND -- there is no total ordering here, so make explicit checks. Add comments explaining all of this. Removed permissions check on SHOW command. Add examine_subclass to the game, rename to SQL_inheritance to fit the official data model better. Adjust documentation. Standalone backend needs to reset all options before it starts. To facilitate that, have IsUnderPostmaster be set by the postmaster itself, don't wait for the magic -p switch. Also make sure that all environment variables and argv's survive init_ps_display(). Use strdup where necessary. Have initdb make configuration files (postgresql.conf, pg_hba.conf) mode 0600 -- having configuration files is no fun if you can't edit them.
26 years ago
* USERSET options can be set by anyone any time.
The heralded `Grand Unified Configuration scheme' (GUC) That means you can now set your options in either or all of $PGDATA/configuration, some postmaster option (--enable-fsync=off), or set a SET command. The list of options is in backend/utils/misc/guc.c, documentation will be written post haste. pg_options is gone, so is that pq_geqo config file. Also removed were backend -K, -Q, and -T options (no longer applicable, although -d0 does the same as -Q). Added to configure an --enable-syslog option. changed all callers from TPRINTF to elog(DEBUG)
26 years ago
*/
pgindent run. Make it all clean.
25 years ago
typedef enum
{
Code review for recent GUC changes --- try to make it less obvious that these things were added at different times by different people ;-). Includes Aizaz Ahmed's patch to remove duplicate array in help_config.c.
22 years ago
PGC_INTERNAL,
PGC_POSTMASTER,
PGC_SIGHUP,
PGC_BACKEND,
PGC_SUSET,
PGC_USERLIMIT,
PGC_USERSET
The heralded `Grand Unified Configuration scheme' (GUC) That means you can now set your options in either or all of $PGDATA/configuration, some postmaster option (--enable-fsync=off), or set a SET command. The list of options is in backend/utils/misc/guc.c, documentation will be written post haste. pg_options is gone, so is that pq_geqo config file. Also removed were backend -K, -Q, and -T options (no longer applicable, although -d0 does the same as -Q). Added to configure an --enable-syslog option. changed all callers from TPRINTF to elog(DEBUG)
26 years ago
} GucContext;
Save source of GUC settings, allowing different sources to be processed in any order without affecting results.
24 years ago
/*
* The following type records the source of the current setting. A
* new setting can only take effect if the previous setting had the
* same or lower level. (E.g, changing the config file doesn't
Merge the last few variable.c configuration variables into the generic GUC support. It's now possible to set datestyle, timezone, and client_encoding from postgresql.conf and per-database or per-user settings. Also, implement rollback of SET commands that occur in a transaction that later fails. Create a SET LOCAL var = value syntax that sets the variable only for the duration of the current transaction. All per previous discussions in pghackers.
24 years ago
* override the postmaster command line.) Tracking the source allows us
* to process sources in any convenient order without affecting results.
* Sources <= PGC_S_OVERRIDE will set the default used by RESET, as well
In the continuing saga of FE/BE protocol revisions, add reporting of initial values and runtime changes in selected parameters. This gets rid of the need for an initial 'select pg_client_encoding()' query in libpq, bringing us back to one message transmitted in each direction for a standard connection startup. To allow server version to be sent using the same GUC mechanism that handles other parameters, invent the concept of a never-settable GUC parameter: you can 'show server_version' but it's not settable by any GUC input source. Create 'lc_collate' and 'lc_ctype' never-settable parameters so that people can find out these settings without need for pg_controldata. (These side ideas were all discussed some time ago in pgsql-hackers, but not yet implemented.)
23 years ago
* as the current value. Note that source == PGC_S_OVERRIDE should be
* used when setting a PGC_INTERNAL option.
> Joe Conway <mail@joeconway.com> writes: >>ISTM that "source" is worth knowing. > > Hm, possibly. Any other opinions? This version has the seven fields I proposed, including "source". Here's an example that shows why I think it's valuable: regression=# \x Expanded display is on. regression=# select * from pg_settings where name = 'enable_seqscan'; -[ RECORD 1 ]----------- name | enable_seqscan setting | on context | user vartype | bool source | default min_val | max_val | regression=# update pg_settings set setting = 'off' where name = 'enable_seqscan'; -[ RECORD 1 ]--- set_config | off regression=# select * from pg_settings where name = 'enable_seqscan'; -[ RECORD 1 ]----------- name | enable_seqscan setting | off context | user vartype | bool source | session min_val | max_val | regression=# alter user postgres set enable_seqscan to 'off'; ALTER USER (log out and then back in again) regression=# \x Expanded display is on. regression=# select * from pg_settings where name = 'enable_seqscan'; -[ RECORD 1 ]----------- name | enable_seqscan setting | off context | user vartype | bool source | user min_val | max_val | In the first case, enable_seqscan is set to its default value. After setting it to off, it is obvious that the value has been changed for the session only. In the third case, you can see that the value has been set specifically for the user. Joe Conway
22 years ago
*
Code review for recent GUC changes --- try to make it less obvious that these things were added at different times by different people ;-). Includes Aizaz Ahmed's patch to remove duplicate array in help_config.c.
22 years ago
* PGC_S_UNPRIVILEGED isn't actually a source value, but the dividing line
* between privileged and unprivileged sources for USERLIMIT purposes.
Repair problem identified by Olivier Prenant: ALTER DATABASE SET search_path should not be too eager to reject paths involving unknown schemas, since it can't really tell whether the schemas exist in the target database. (Also, when reading pg_dumpall output, it could be that the schemas don't exist yet, but eventually will.) ALTER USER SET has a similar issue. So, reduce the normal ERROR to a NOTICE when checking search_path values for these commands. Supporting this requires changing the API for GUC assign_hook functions, which causes the patch to touch a lot of places, but the changes are conceptually trivial.
22 years ago
* Similarly, PGC_S_INTERACTIVE isn't a real source value, but is the
* dividing line between "interactive" and "non-interactive" sources for
* error reporting purposes.
*
* PGC_S_TEST is used when testing values to be stored as per-database or
* per-user defaults ("doit" will always be false, so this never gets stored
* as the actual source of any value). This is an interactive case, but
* it needs its own source value because some assign hooks need to make
* different validity checks in this case.
Save source of GUC settings, allowing different sources to be processed in any order without affecting results.
24 years ago
*/
typedef enum
{
Code review for recent GUC changes --- try to make it less obvious that these things were added at different times by different people ;-). Includes Aizaz Ahmed's patch to remove duplicate array in help_config.c.
22 years ago
PGC_S_DEFAULT, /* wired-in default */
PGC_S_ENV_VAR, /* postmaster environment variable */
PGC_S_FILE, /* postgresql.conf */
PGC_S_ARGV, /* postmaster command line */
PGC_S_UNPRIVILEGED, /* dividing line for USERLIMIT */
PGC_S_DATABASE, /* per-database setting */
PGC_S_USER, /* per-user setting */
PGC_S_CLIENT, /* from client connection request */
PGC_S_OVERRIDE, /* special case to forcibly set default */
Repair problem identified by Olivier Prenant: ALTER DATABASE SET search_path should not be too eager to reject paths involving unknown schemas, since it can't really tell whether the schemas exist in the target database. (Also, when reading pg_dumpall output, it could be that the schemas don't exist yet, but eventually will.) ALTER USER SET has a similar issue. So, reduce the normal ERROR to a NOTICE when checking search_path values for these commands. Supporting this requires changing the API for GUC assign_hook functions, which causes the patch to touch a lot of places, but the changes are conceptually trivial.
22 years ago
PGC_S_INTERACTIVE, /* dividing line for error reporting */
PGC_S_TEST, /* test per-database or per-user setting */
Code review for recent GUC changes --- try to make it less obvious that these things were added at different times by different people ;-). Includes Aizaz Ahmed's patch to remove duplicate array in help_config.c.
22 years ago
PGC_S_SESSION /* SET command */
Save source of GUC settings, allowing different sources to be processed in any order without affecting results.
24 years ago
} GucSource;
The heralded `Grand Unified Configuration scheme' (GUC) That means you can now set your options in either or all of $PGDATA/configuration, some postmaster option (--enable-fsync=off), or set a SET command. The list of options is in backend/utils/misc/guc.c, documentation will be written post haste. pg_options is gone, so is that pq_geqo config file. Also removed were backend -K, -Q, and -T options (no longer applicable, although -d0 does the same as -Q). Added to configure an --enable-syslog option. changed all callers from TPRINTF to elog(DEBUG)
26 years ago
In the continuing saga of FE/BE protocol revisions, add reporting of initial values and runtime changes in selected parameters. This gets rid of the need for an initial 'select pg_client_encoding()' query in libpq, bringing us back to one message transmitted in each direction for a standard connection startup. To allow server version to be sent using the same GUC mechanism that handles other parameters, invent the concept of a never-settable GUC parameter: you can 'show server_version' but it's not settable by any GUC input source. Create 'lc_collate' and 'lc_ctype' never-settable parameters so that people can find out these settings without need for pg_controldata. (These side ideas were all discussed some time ago in pgsql-hackers, but not yet implemented.)
23 years ago
/* GUC vars that are actually declared in guc.c, rather than elsewhere */
extern bool log_duration;
extern bool Debug_print_plan;
extern bool Debug_print_parse;
extern bool Debug_print_rewritten;
extern bool Debug_pretty_print;
extern bool Explain_pretty_print;
extern bool log_parser_stats;
extern bool log_planner_stats;
extern bool log_executor_stats;
extern bool log_statement_stats;
extern bool log_btree_build_stats;
extern bool SQL_inheritance;
extern bool Australian_timezones;
This patch adds a new GUC var, "default_with_oids", which follows the proposal for eventually deprecating OIDs on user tables that I posted earlier to pgsql-hackers. pg_dump now always specifies WITH OIDS or WITHOUT OIDS when dumping a table. The documentation has been updated. Neil Conway
22 years ago
extern bool default_with_oids;
In the continuing saga of FE/BE protocol revisions, add reporting of initial values and runtime changes in selected parameters. This gets rid of the need for an initial 'select pg_client_encoding()' query in libpq, bringing us back to one message transmitted in each direction for a standard connection startup. To allow server version to be sent using the same GUC mechanism that handles other parameters, invent the concept of a never-settable GUC parameter: you can 'show server_version' but it's not settable by any GUC input source. Create 'lc_collate' and 'lc_ctype' never-settable parameters so that people can find out these settings without need for pg_controldata. (These side ideas were all discussed some time ago in pgsql-hackers, but not yet implemented.)
23 years ago
extern int log_min_error_statement;
extern int log_min_messages;
extern int client_min_messages;
Code review for recent GUC changes --- try to make it less obvious that these things were added at different times by different people ;-). Includes Aizaz Ahmed's patch to remove duplicate array in help_config.c.
22 years ago
extern int log_min_duration_statement;
In the continuing saga of FE/BE protocol revisions, add reporting of initial values and runtime changes in selected parameters. This gets rid of the need for an initial 'select pg_client_encoding()' query in libpq, bringing us back to one message transmitted in each direction for a standard connection startup. To allow server version to be sent using the same GUC mechanism that handles other parameters, invent the concept of a never-settable GUC parameter: you can 'show server_version' but it's not settable by any GUC input source. Create 'lc_collate' and 'lc_ctype' never-settable parameters so that people can find out these settings without need for pg_controldata. (These side ideas were all discussed some time ago in pgsql-hackers, but not yet implemented.)
23 years ago
Extend GUC concepts of parse_hook and assign_hook to all four supported datatypes, not only strings. parse_hook is useless for bool, I suppose, but it seems possibly useful for int and double to apply variable-specific constraints that are more complex than simple range limits. assign_hook is definitely useful for all datatypes --- we need it right now for bool to support date cache reset when changing Australian timezone rule setting. Also, clean up some residual problems with the reset all/show all patch, including memory leaks and mistaken reset of PostPortNumber. It seems best that RESET ALL not touch variables that don't have SUSET or USERSET context.
25 years ago
extern void SetConfigOption(const char *name, const char *value,
Save source of GUC settings, allowing different sources to be processed in any order without affecting results.
24 years ago
GucContext context, GucSource source);
Extend GUC concepts of parse_hook and assign_hook to all four supported datatypes, not only strings. parse_hook is useless for bool, I suppose, but it seems possibly useful for int and double to apply variable-specific constraints that are more complex than simple range limits. assign_hook is definitely useful for all datatypes --- we need it right now for bool to support date cache reset when changing Australian timezone rule setting. Also, clean up some residual problems with the reset all/show all patch, including memory leaks and mistaken reset of PostPortNumber. It seems best that RESET ALL not touch variables that don't have SUSET or USERSET context.
25 years ago
extern const char *GetConfigOption(const char *name);
Merge the last few variable.c configuration variables into the generic GUC support. It's now possible to set datestyle, timezone, and client_encoding from postgresql.conf and per-database or per-user settings. Also, implement rollback of SET commands that occur in a transaction that later fails. Create a SET LOCAL var = value syntax that sets the variable only for the duration of the current transaction. All per previous discussions in pghackers.
24 years ago
extern const char *GetConfigOptionResetString(const char *name);
Extend GUC concepts of parse_hook and assign_hook to all four supported datatypes, not only strings. parse_hook is useless for bool, I suppose, but it seems possibly useful for int and double to apply variable-specific constraints that are more complex than simple range limits. assign_hook is definitely useful for all datatypes --- we need it right now for bool to support date cache reset when changing Australian timezone rule setting. Also, clean up some residual problems with the reset all/show all patch, including memory leaks and mistaken reset of PostPortNumber. It seems best that RESET ALL not touch variables that don't have SUSET or USERSET context.
25 years ago
extern void ProcessConfigFile(GucContext context);
Merge the last few variable.c configuration variables into the generic GUC support. It's now possible to set datestyle, timezone, and client_encoding from postgresql.conf and per-database or per-user settings. Also, implement rollback of SET commands that occur in a transaction that later fails. Create a SET LOCAL var = value syntax that sets the variable only for the duration of the current transaction. All per previous discussions in pghackers.
24 years ago
extern void InitializeGUCOptions(void);
extern void ResetAllOptions(void);
extern void AtEOXact_GUC(bool isCommit);
In the continuing saga of FE/BE protocol revisions, add reporting of initial values and runtime changes in selected parameters. This gets rid of the need for an initial 'select pg_client_encoding()' query in libpq, bringing us back to one message transmitted in each direction for a standard connection startup. To allow server version to be sent using the same GUC mechanism that handles other parameters, invent the concept of a never-settable GUC parameter: you can 'show server_version' but it's not settable by any GUC input source. Create 'lc_collate' and 'lc_ctype' never-settable parameters so that people can find out these settings without need for pg_controldata. (These side ideas were all discussed some time ago in pgsql-hackers, but not yet implemented.)
23 years ago
extern void BeginReportingGUCOptions(void);
Extend GUC concepts of parse_hook and assign_hook to all four supported datatypes, not only strings. parse_hook is useless for bool, I suppose, but it seems possibly useful for int and double to apply variable-specific constraints that are more complex than simple range limits. assign_hook is definitely useful for all datatypes --- we need it right now for bool to support date cache reset when changing Australian timezone rule setting. Also, clean up some residual problems with the reset all/show all patch, including memory leaks and mistaken reset of PostPortNumber. It seems best that RESET ALL not touch variables that don't have SUSET or USERSET context.
25 years ago
extern void ParseLongOption(const char *string, char **name, char **value);
extern bool set_config_option(const char *name, const char *value,
pgindent run.
23 years ago
GucContext context, GucSource source,
Rename DoIt to changeVar, for clarity.
22 years ago
bool isLocal, bool changeVal);
Restructure command destination handling so that we pass around DestReceiver pointers instead of just CommandDest values. The DestReceiver is made at the point where the destination is selected, rather than deep inside the executor. This cleans up the original kluge implementation of tstoreReceiver.c, and makes it easy to support retrieving results from utility statements inside portals. Thus, you can now do fun things like Bind and Execute a FETCH or EXPLAIN command, and it'll all work as expected (e.g., you can Describe the portal, or use Execute's count parameter to suspend the output partway through). Implementation involves stuffing the utility command's output into a Tuplestore, which would be kind of annoying for huge output sets, but should be quite acceptable for typical uses of utility commands.
23 years ago
extern void ShowGUCConfigOption(const char *name, DestReceiver *dest);
extern void ShowAllGUCConfig(DestReceiver *dest);
Code review for SHOW output changes; fix horology expected files for new SHOW output format.
23 years ago
extern char *GetConfigOptionByName(const char *name, const char **varname);
> Joe Conway <mail@joeconway.com> writes: >>ISTM that "source" is worth knowing. > > Hm, possibly. Any other opinions? This version has the seven fields I proposed, including "source". Here's an example that shows why I think it's valuable: regression=# \x Expanded display is on. regression=# select * from pg_settings where name = 'enable_seqscan'; -[ RECORD 1 ]----------- name | enable_seqscan setting | on context | user vartype | bool source | default min_val | max_val | regression=# update pg_settings set setting = 'off' where name = 'enable_seqscan'; -[ RECORD 1 ]--- set_config | off regression=# select * from pg_settings where name = 'enable_seqscan'; -[ RECORD 1 ]----------- name | enable_seqscan setting | off context | user vartype | bool source | session min_val | max_val | regression=# alter user postgres set enable_seqscan to 'off'; ALTER USER (log out and then back in again) regression=# \x Expanded display is on. regression=# select * from pg_settings where name = 'enable_seqscan'; -[ RECORD 1 ]----------- name | enable_seqscan setting | off context | user vartype | bool source | user min_val | max_val | In the first case, enable_seqscan is set to its default value. After setting it to off, it is obvious that the value has been changed for the session only. In the third case, you can see that the value has been set specifically for the user. Joe Conway
22 years ago
extern void GetConfigOptionByNum(int varnum, const char **values, bool *noshow);
pgindent run.
23 years ago
extern int GetNumConfigOptions(void);
The heralded `Grand Unified Configuration scheme' (GUC) That means you can now set your options in either or all of $PGDATA/configuration, some postmaster option (--enable-fsync=off), or set a SET command. The list of options is in backend/utils/misc/guc.c, documentation will be written post haste. pg_options is gone, so is that pq_geqo config file. Also removed were backend -K, -Q, and -T options (no longer applicable, although -d0 does the same as -Q). Added to configure an --enable-syslog option. changed all callers from TPRINTF to elog(DEBUG)
26 years ago
Merge the last few variable.c configuration variables into the generic GUC support. It's now possible to set datestyle, timezone, and client_encoding from postgresql.conf and per-database or per-user settings. Also, implement rollback of SET commands that occur in a transaction that later fails. Create a SET LOCAL var = value syntax that sets the variable only for the duration of the current transaction. All per previous discussions in pghackers.
24 years ago
extern void SetPGVariable(const char *name, List *args, bool is_local);
Restructure command destination handling so that we pass around DestReceiver pointers instead of just CommandDest values. The DestReceiver is made at the point where the destination is selected, rather than deep inside the executor. This cleans up the original kluge implementation of tstoreReceiver.c, and makes it easy to support retrieving results from utility statements inside portals. Thus, you can now do fun things like Bind and Execute a FETCH or EXPLAIN command, and it'll all work as expected (e.g., you can Describe the portal, or use Execute's count parameter to suspend the output partway through). Implementation involves stuffing the utility command's output into a Tuplestore, which would be kind of annoying for huge output sets, but should be quite acceptable for typical uses of utility commands.
23 years ago
extern void GetPGVariable(const char *name, DestReceiver *dest);
extern TupleDesc GetPGVariableResultDesc(const char *name);
Merge the last few variable.c configuration variables into the generic GUC support. It's now possible to set datestyle, timezone, and client_encoding from postgresql.conf and per-database or per-user settings. Also, implement rollback of SET commands that occur in a transaction that later fails. Create a SET LOCAL var = value syntax that sets the variable only for the duration of the current transaction. All per previous discussions in pghackers.
24 years ago
extern void ResetPGVariable(const char *name);
extern char *flatten_set_variable_args(const char *name, List *args);
User and database-specific session defaults for run-time configuration variables. New commands ALTER DATABASE ... SET and ALTER USER ... SET.
24 years ago
extern void ProcessGUCArray(ArrayType *array, GucSource source);
extern ArrayType *GUCArrayAdd(ArrayType *array, const char *name, const char *value);
extern ArrayType *GUCArrayDelete(ArrayType *array, const char *name);
The heralded `Grand Unified Configuration scheme' (GUC) That means you can now set your options in either or all of $PGDATA/configuration, some postmaster option (--enable-fsync=off), or set a SET command. The list of options is in backend/utils/misc/guc.c, documentation will be written post haste. pg_options is gone, so is that pq_geqo config file. Also removed were backend -K, -Q, and -T options (no longer applicable, although -d0 does the same as -Q). Added to configure an --enable-syslog option. changed all callers from TPRINTF to elog(DEBUG)
26 years ago
SECOND ATTEMPT Dump/read non-default GUC values for use by exec'ed backend, for Win32.
23 years ago
#ifdef EXEC_BACKEND
pgindent run.
22 years ago
void write_nondefault_variables(GucContext context);
void read_nondefault_variables(void);
SECOND ATTEMPT Dump/read non-default GUC values for use by exec'ed backend, for Win32.
23 years ago
#endif
Repair problem identified by Olivier Prenant: ALTER DATABASE SET search_path should not be too eager to reject paths involving unknown schemas, since it can't really tell whether the schemas exist in the target database. (Also, when reading pg_dumpall output, it could be that the schemas don't exist yet, but eventually will.) ALTER USER SET has a similar issue. So, reduce the normal ERROR to a NOTICE when checking search_path values for these commands. Supporting this requires changing the API for GUC assign_hook functions, which causes the patch to touch a lot of places, but the changes are conceptually trivial.
22 years ago
/*
* The following functions are not in guc.c, but are declared here to avoid
* having to include guc.h in some widely used headers that it really doesn't
* belong in.
*/
/* in utils/adt/datetime.c */
extern bool ClearDateCache(bool newval, bool doit, GucSource source);
/* in utils/adt/regexp.c */
extern const char *assign_regex_flavor(const char *value,
bool doit, GucSource source);
/* in catalog/namespace.c */
extern const char *assign_search_path(const char *newval,
bool doit, GucSource source);
/* in access/transam/xlog.c */
extern const char *assign_xlog_sync_method(const char *method,
bool doit, GucSource source);
New pgindent run with fixes suggested by Tom. Patch manually reviewed, initdb/regression tests pass.
24 years ago
#endif /* GUC_H */