<!--
-$PostgreSQL: pgsql/doc/src/sgml/runtime.sgml,v 1.292 2004/11/14 19:35:28 tgl Exp $
+$PostgreSQL: pgsql/doc/src/sgml/runtime.sgml,v 1.293 2004/11/16 05:33:14 neilc Exp $
-->
<Chapter Id="runtime">
<variablelist>
<varlistentry id="guc-data-directory" xreflabel="data-directory">
<term><varname>data_directory</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>data_directory</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Specifies the directory to use for data storage.
<varlistentry id="guc-config-file" xreflabel="config-file">
<term><varname>config_file</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>config_file</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Specifies the main server configuration file
<varlistentry id="guc-hba-file" xreflabel="hba-file">
<term><varname>hba_file</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>hba_file</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Specifies the configuration file for host-based authentication.
<varlistentry id="guc-ident-file" xreflabel="ident-file">
<term><varname>ident_file</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>ident_file</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Specifies the configuration file for
<varlistentry id="external-pid-file" xreflabel="external-pid-file">
<term><varname>external_pid_file</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>external_pid_file</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Specifies that the <application>postmaster</> should create an
<varlistentry id="guc-listen-addresses" xreflabel="listen_addresses">
<term><varname>listen_addresses</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>listen_addresses</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Specifies the TCP/IP address(es) on which the server is
<varlistentry id="guc-port" xreflabel="port">
<term><varname>port</varname> (<type>integer</type>)</term>
- <indexterm><primary>port</></>
+ <indexterm>
+ <primary><varname>port</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
The TCP port the server listens on; 5432 by default. Note that the
<varlistentry id="guc-max-connections" xreflabel="max_connections">
<term><varname>max_connections</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>max_connections</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Determines the maximum number of concurrent connections to the
xreflabel="superuser_reserved_connections">
<term><varname>superuser_reserved_connections</varname>
(<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>superuser_reserved_connections</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Determines the number of <quote>connection slots</quote> that
</listitem>
</varlistentry>
-
<varlistentry id="guc-unix-socket-directory" xreflabel="unix_socket_directory">
<term><varname>unix_socket_directory</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>unix_socket_directory</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Specifies the directory of the Unix-domain socket on which the
<varlistentry id="guc-unix-socket-group" xreflabel="unix_socket_group">
<term><varname>unix_socket_group</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>unix_socket_group</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the owning group of the Unix-domain socket. (The owning
<varlistentry id="guc-unix-socket-permissions" xreflabel="unix_socket_permissions">
<term><varname>unix_socket_permissions</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>unix_socket_permissions</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the access permissions of the Unix-domain socket. Unix
<varlistentry id="guc-rendezvous-name" xreflabel="rendezvous_name">
<term><varname>rendezvous_name</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>rendezvous_name</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Specifies the <productname>Rendezvous</productname> broadcast
<term><varname>authentication_timeout</varname> (<type>integer</type>)</term>
<indexterm><primary>timeout</><secondary>client authentication</></indexterm>
<indexterm><primary>client authentication</><secondary>timeout during</></indexterm>
+ <indexterm>
+ <primary><varname>authentication_timeout</> configuration parameter</primary>
+ </indexterm>
+
<listitem>
<para>
Maximum time to complete client authentication, in seconds. If a
</varlistentry>
<varlistentry id="guc-ssl" xreflabel="ssl">
+ <term><varname>ssl</varname> (<type>boolean</type>)</term>
<indexterm>
- <primary>SSL</primary>
+ <primary><varname>ssl</> configuration parameter</primary>
</indexterm>
- <term><varname>ssl</varname> (<type>boolean</type>)</term>
<listitem>
<para>
Enables <acronym>SSL</> connections. Please read
<varlistentry id="guc-password-encryption" xreflabel="password_encryption">
<term><varname>password_encryption</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>password_encryption</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
When a password is specified in <xref
<varlistentry id="guc-krb-server-keyfile" xreflabel="krb_server_keyfile">
<term><varname>krb_server_keyfile</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>krb_server_keyfile</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the location of the Kerberos server key file. See
<varlistentry id="guc-db-user-namespace" xreflabel="db_user_namespace">
<term><varname>db_user_namespace</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>db_user_namespace</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
This allows per-database user names. It is off by default.
<variablelist>
<varlistentry id="guc-shared-buffers" xreflabel="shared_buffers">
<term><varname>shared_buffers</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>shared_buffers</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the number of shared memory buffers used by the database
<varlistentry id="guc-work-mem" xreflabel="work_mem">
<term><varname>work_mem</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>work_mem</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Specifies the amount of memory to be used by internal sort operations
<varlistentry id="guc-maintenance-work-mem" xreflabel="maintenance_work_mem">
<term><varname>maintenance_work_mem</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>maintenance_work_mem</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Specifies the maximum amount of memory to be used in maintenance
<varlistentry id="guc-max-stack-depth" xreflabel="max_stack_depth">
<term><varname>max_stack_depth</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>max_stack_depth</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Specifies the maximum safe depth of the server's execution stack.
<variablelist>
<varlistentry id="guc-max-fsm-pages" xreflabel="max_fsm_pages">
<term><varname>max_fsm_pages</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>max_fsm_pages</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the maximum number of disk pages for which free space will
<varlistentry id="guc-max-fsm-relations" xreflabel="max_fsm_relations">
<term><varname>max_fsm_relations</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>max_fsm_relations</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the maximum number of relations (tables and indexes) for which
<varlistentry id="guc-max-files-per-process" xreflabel="max_files_per_process">
<term><varname>max_files_per_process</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>max_files_per_process</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the maximum number of simultaneously open files allowed to each
<varlistentry id="guc-preload-libraries" xreflabel="preload_libraries">
<term><varname>preload_libraries</varname> (<type>string</type>)</term>
- <indexterm><primary>preload_libraries</></>
+ <indexterm>
+ <primary><varname>preload_libraries</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
This variable specifies one or more shared libraries that are
<variablelist>
<varlistentry id="guc-vacuum-cost-delay" xreflabel="vacuum_cost_delay">
<term><varname>vacuum_cost_delay</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>vacuum_cost_delay</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
The length of time, in milliseconds, that the process will sleep
<varlistentry id="guc-vacuum-cost-page-hit" xreflabel="vacuum_cost_page_hit">
<term><varname>vacuum_cost_page_hit</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>vacuum_cost_page_hit</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
The estimated cost for vacuuming a buffer found in the shared buffer
<varlistentry id="guc-vacuum-cost-page-miss" xreflabel="vacuum_cost_page_miss">
<term><varname>vacuum_cost_page_miss</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>vacuum_cost_page_miss</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
The estimated cost for vacuuming a buffer that has to be read from
<varlistentry id="guc-vacuum-cost-page-dirty" xreflabel="vacuum_cost_page_dirty">
<term><varname>vacuum_cost_page_dirty</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>vacuum_cost_page_dirty</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
The estimated cost charged when vacuum modifies a block that was
<varlistentry id="guc-vacuum-cost-limit" xreflabel="vacuum_cost_limit">
<term><varname>vacuum_cost_limit</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>vacuum_cost_limit</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
The accumulated cost that will cause the vacuuming process to sleep.
<variablelist>
<varlistentry id="guc-bgwriter-delay" xreflabel="bgwriter_delay">
<term><varname>bgwriter_delay</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>bgwriter_delay</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Specifies the delay between activity rounds for the
<varlistentry id="guc-bgwriter-percent" xreflabel="bgwriter_percent">
<term><varname>bgwriter_percent</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>bgwriter_percent</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
In each round, no more than this percentage of the currently
<varlistentry id="guc-bgwriter-maxpages" xreflabel="bgwriter_maxpages">
<term><varname>bgwriter_maxpages</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>bgwriter_maxpages</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
In each round, no more than this many dirty buffers will be
<varlistentry id="guc-fsync" xreflabel="fsync">
<indexterm>
- <primary>fsync</primary>
+ <primary><varname>fsync</> configuration parameter</primary>
</indexterm>
-
<term><varname>fsync</varname> (<type>boolean</type>)</term>
<listitem>
<para>
<varlistentry id="guc-wal-sync-method" xreflabel="wal_sync_method">
<term><varname>wal_sync_method</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>wal_sync_method</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Method used for forcing WAL updates out to disk. Possible
<varlistentry id="guc-wal-buffers" xreflabel="wal_buffers">
<term><varname>wal_buffers</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>wal_buffers</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Number of disk-page buffers allocated in shared memory for WAL data.
<varlistentry id="guc-commit-delay" xreflabel="commit_delay">
<term><varname>commit_delay</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>commit_delay</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Time delay between writing a commit record to the WAL buffer
<varlistentry id="guc-commit-siblings" xreflabel="commit_siblings">
<term><varname>commit_siblings</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>commit_siblings</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Minimum number of concurrent open transactions to require
<variablelist>
<varlistentry id="guc-checkpoint-segments" xreflabel="checkpoint_segments">
<term><varname>checkpoint_segments</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>checkpoint_segments</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Maximum distance between automatic WAL checkpoints, in log
<varlistentry id="guc-checkpoint-timeout" xreflabel="checkpoint_timeout">
<term><varname>checkpoint_timeout</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>checkpoint_timeout</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Maximum time between automatic WAL checkpoints, in
<varlistentry id="guc-checkpoint-warning" xreflabel="checkpoint_warning">
<term><varname>checkpoint_warning</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>checkpoint_warning</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Write a message to the server logs if checkpoints caused by
<variablelist>
<varlistentry id="guc-archive-command" xreflabel="archive_command">
<term><varname>archive_command</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>archive_command</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
The shell command to execute to archive a completed segment of
<variablelist>
<varlistentry id="guc-enable-hashagg" xreflabel="enable_hashagg">
<term><varname>enable_hashagg</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>enable_hashagg</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Enables or disables the query planner's use of hashed
<varlistentry id="guc-enable-hashjoin" xreflabel="enable_hashjoin">
<term><varname>enable_hashjoin</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>enable_hashjoin</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Enables or disables the query planner's use of hash-join plan
</varlistentry>
<varlistentry id="guc-enable-indexscan" xreflabel="enable_indexscan">
+ <term><varname>enable_indexscan</varname> (<type>boolean</type>)</term>
<indexterm>
<primary>index scan</primary>
</indexterm>
-
- <term><varname>enable_indexscan</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>enable_indexscan</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Enables or disables the query planner's use of index-scan plan
<varlistentry id="guc-enable-mergejoin" xreflabel="enable_mergejoin">
<term><varname>enable_mergejoin</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>enable_mergejoin</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Enables or disables the query planner's use of merge-join plan
<varlistentry id="guc-enable-nestloop" xreflabel="enable_nestloop">
<term><varname>enable_nestloop</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>enable_nestloop</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Enables or disables the query planner's use of nested-loop join
</varlistentry>
<varlistentry id="guc-enable-seqscan" xreflabel="enable_seqscan">
+ <term><varname>enable_seqscan</varname> (<type>boolean</type>)</term>
<indexterm>
<primary>sequential scan</primary>
</indexterm>
-
- <term><varname>enable_seqscan</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>enable_seqscan</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Enables or disables the query planner's use of sequential scan
<varlistentry id="guc-enable-sort" xreflabel="enable_sort">
<term><varname>enable_sort</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>enable_sort</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Enables or disables the query planner's use of explicit sort
<varlistentry id="guc-enable-tidscan" xreflabel="enable_tidscan">
<term><varname>enable_tidscan</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>enable_tidscan</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Enables or disables the query planner's use of <acronym>TID</>
<varlistentry id="guc-effective-cache-size" xreflabel="effective_cache_size">
<term><varname>effective_cache_size</varname> (<type>floating point</type>)</term>
+ <indexterm>
+ <primary><varname>effective_cache_size</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the planner's assumption about the effective size of the
<varlistentry id="guc-random-page-cost" xreflabel="random_page_cost">
<term><varname>random_page_cost</varname> (<type>floating point</type>)</term>
+ <indexterm>
+ <primary><varname>random_page_cost</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the planner's estimate of the cost of a
<varlistentry id="guc-cpu-tuple-cost" xreflabel="cpu_tuple_cost">
<term><varname>cpu_tuple_cost</varname> (<type>floating point</type>)</term>
+ <indexterm>
+ <primary><varname>cpu_tuple_cost</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the planner's estimate of the cost of processing
<varlistentry id="guc-cpu-index-tuple-cost" xreflabel="cpu_index_tuple_cost">
<term><varname>cpu_index_tuple_cost</varname> (<type>floating point</type>)</term>
+ <indexterm>
+ <primary><varname>cpu_index_tuple_cost</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the planner's estimate of the cost of processing
<varlistentry id="guc-cpu-operator-cost" xreflabel="cpu_operator_cost">
<term><varname>cpu_operator_cost</varname> (<type>floating point</type>)</term>
+ <indexterm>
+ <primary><varname>cpu_operator_cost</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the planner's estimate of the cost of processing each
<primary>GEQO</primary>
<see>genetic query optimization</see>
</indexterm>
+ <indexterm>
+ <primary><varname>geqo</> configuration parameter</primary>
+ </indexterm>
<term><varname>geqo</varname> (<type>boolean</type>)</term>
<listitem>
<para>
<varlistentry id="guc-geqo-threshold" xreflabel="geqo_threshold">
<term><varname>geqo_threshold</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>geqo_threshold</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Use genetic query optimization to plan queries with at least
<varlistentry id="guc-geqo-effort" xreflabel="geqo_effort">
<term><varname>geqo_effort</varname>
(<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>geqo_effort</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Controls the tradeoff between planning time and query plan
<varlistentry id="guc-geqo-pool-size" xreflabel="geqo_pool_size">
<term><varname>geqo_pool_size</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>geqo_pool_size</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Controls the pool size used by GEQO. The pool size is the
<varlistentry id="guc-geqo-generations" xreflabel="geqo_generations">
<term><varname>geqo_generations</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>geqo_generations</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Controls the number of generations used by GEQO. Generations
<varlistentry id="guc-geqo-selection-bias" xreflabel="geqo_selection_bias">
<term><varname>geqo_selection_bias</varname> (<type>floating point</type>)</term>
+ <indexterm>
+ <primary><varname>geqo_selection_bias</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Controls the selection bias used by GEQO. The selection bias
<varlistentry id="guc-default-statistics-target" xreflabel="default_statistics_target">
<term><varname>default_statistics_target</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>default_statistics_target</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the default statistics target for table columns that have
<varlistentry id="guc-from-collapse-limit" xreflabel="from_collapse_limit">
<term><varname>from_collapse_limit</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>from_collapse_limit</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
The planner will merge sub-queries into upper queries if the
<varlistentry id="guc-join-collapse-limit" xreflabel="join_collapse_limit">
<term><varname>join_collapse_limit</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>join_collapse_limit</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
The planner will rewrite explicit inner <literal>JOIN</>
specified via the <literal>JOIN</literal> construct would
never be reordered by the query planner. The query planner has
subsequently been improved so that inner joins written in this
- form can be reordered; this configuration variable controls
+ form can be reordered; this configuration parameter controls
the extent to which this reordering is performed.
<note>
<para>
<varlistentry id="guc-log-destination" xreflabel="log_destination">
<term><varname>log_destination</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>log_destination</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
<productname>PostgreSQL</productname> supports several methods
<varlistentry id="guc-redirect-stderr" xreflabel="redirect_stderr">
<term><varname>redirect_stderr</varname> (<type>boolean</type>)</term>
- <listitem>
- <para>
- This option allows messages sent to <application>stderr</> to be
- captured and redirected into log files.
- This option, in combination with logging to <application>stderr</>,
- is often more useful than
- logging to <application>syslog</>, since some types of messages
- may not appear in <application>syslog</> output (a common example
- is dynamic-linker failure messages).
- This option can only be set at server start.
- </para>
- </listitem>
+ <indexterm>
+ <primary><varname>redirect_stderr</> configuration parameter</primary>
+ </indexterm>
+ <listitem>
+ <para>
+ This option allows messages sent to <application>stderr</> to be
+ captured and redirected into log files.
+ This option, in combination with logging to <application>stderr</>,
+ is often more useful than
+ logging to <application>syslog</>, since some types of messages
+ may not appear in <application>syslog</> output (a common example
+ is dynamic-linker failure messages).
+ This option can only be set at server start.
+ </para>
+ </listitem>
</varlistentry>
<varlistentry id="guc-log-directory" xreflabel="log_directory">
<term><varname>log_directory</varname> (<type>string</type>)</term>
- <listitem>
- <para>
- When <varname>redirect_stderr</> is enabled, this option
- determines the directory in which log files will be created.
- It may be specified as an absolute path, or relative to the
- cluster data directory.
- This option can only be set at server start or in the
- <filename>postgresql.conf</filename> configuration file.
- </para>
- </listitem>
+ <indexterm>
+ <primary><varname>log_directory</> configuration parameter</primary>
+ </indexterm>
+ <listitem>
+ <para>
+ When <varname>redirect_stderr</> is enabled, this option
+ determines the directory in which log files will be created.
+ It may be specified as an absolute path, or relative to the
+ cluster data directory.
+ This option can only be set at server start or in the
+ <filename>postgresql.conf</filename> configuration file.
+ </para>
+ </listitem>
</varlistentry>
<varlistentry id="guc-log-filename" xreflabel="log_filename">
<term><varname>log_filename</varname> (<type>string</type>)</term>
- <listitem>
- <para>
- When <varname>redirect_stderr</varname> is enabled, this option
- sets the file names of the created log files. The value
- is treated as a <systemitem>strftime</systemitem> pattern,
- so <literal>%</literal>-escapes
- can be used to specify time-varying file names.
- If no <literal>%</literal>-escapes are present,
- <productname>PostgreSQL</productname> will
- append the epoch of the new log file's open time. For example,
- if <varname>log_filename</varname> were <literal>server_log</literal>, then the
- chosen file name would be <literal>server_log.1093827753</literal>
- for a log starting at Sun Aug 29 19:02:33 2004 MST.
- This option can only be set at server start or in the
- <filename>postgresql.conf</filename> configuration file.
- </para>
- </listitem>
+ <indexterm>
+ <primary><varname>log_filename</> configuration parameter</primary>
+ </indexterm>
+ <listitem>
+ <para>
+ When <varname>redirect_stderr</varname> is enabled, this option
+ sets the file names of the created log files. The value
+ is treated as a <systemitem>strftime</systemitem> pattern,
+ so <literal>%</literal>-escapes
+ can be used to specify time-varying file names.
+ If no <literal>%</literal>-escapes are present,
+ <productname>PostgreSQL</productname> will
+ append the epoch of the new log file's open time. For example,
+ if <varname>log_filename</varname> were <literal>server_log</literal>, then the
+ chosen file name would be <literal>server_log.1093827753</literal>
+ for a log starting at Sun Aug 29 19:02:33 2004 MST.
+ This option can only be set at server start or in the
+ <filename>postgresql.conf</filename> configuration file.
+ </para>
+ </listitem>
</varlistentry>
<varlistentry id="guc-log-rotation-age" xreflabel="log_rotation_age">
<term><varname>log_rotation_age</varname> (<type>integer</type>)</term>
- <listitem>
- <para>
- When <varname>redirect_stderr</varname> is enabled, this option
- determines the maximum lifetime of an individual log file.
- After this many minutes have elapsed, a new log file will
- be created. Set to zero to disable time-based creation of
- new log files.
- This option can only be set at server start or in the
- <filename>postgresql.conf</filename> configuration file.
- </para>
- </listitem>
+ <indexterm>
+ <primary><varname>log_rotation_age</> configuration parameter</primary>
+ </indexterm>
+ <listitem>
+ <para>
+ When <varname>redirect_stderr</varname> is enabled, this option
+ determines the maximum lifetime of an individual log file.
+ After this many minutes have elapsed, a new log file will
+ be created. Set to zero to disable time-based creation of
+ new log files.
+ This option can only be set at server start or in the
+ <filename>postgresql.conf</filename> configuration file.
+ </para>
+ </listitem>
</varlistentry>
<varlistentry id="guc-log-rotation-size" xreflabel="log_rotation_size">
<term><varname>log_rotation_size</varname> (<type>integer</type>)</term>
- <listitem>
- <para>
- When <varname>redirect_stderr</varname> is enabled, this option
- determines the maximum size of an individual log file.
- After this many kilobytes have been emitted into a log file,
- a new log file will be created. Set to zero to disable size-based
- creation of new log files.
- This option can only be set at server start or in the
- <filename>postgresql.conf</filename> configuration file.
- </para>
- </listitem>
+ <indexterm>
+ <primary><varname>log_rotation_size</> configuration parameter</primary>
+ </indexterm>
+ <listitem>
+ <para>
+ When <varname>redirect_stderr</varname> is enabled, this option
+ determines the maximum size of an individual log file.
+ After this many kilobytes have been emitted into a log file,
+ a new log file will be created. Set to zero to disable size-based
+ creation of new log files.
+ This option can only be set at server start or in the
+ <filename>postgresql.conf</filename> configuration file.
+ </para>
+ </listitem>
</varlistentry>
<varlistentry id="guc-log-truncate-on-rotation" xreflabel="log_truncate_on_rotation">
<term><varname>log_truncate_on_rotation</varname> (<type>boolean</type>)</term>
- <listitem>
- <para>
- When <varname>redirect_stderr</varname> is enabled, this option will cause
- <productname>PostgreSQL</productname> to truncate (overwrite),
- rather than append to, any existing log file of the same name.
- However, truncation will occur only when a new file is being opened
- due to time-based rotation, not during server startup or size-based
- rotation. When false, pre-existing files will be appended to in
- all cases. For example, using this option in combination with
- a <varname>log_filename</varname> like <literal>postgresql-%H.log</literal>
- would result in generating twenty-four hourly log files and then
- cyclically overwriting them.
- This option can only be set at server start or in the
- <filename>postgresql.conf</filename> configuration file.
- </para>
- <para>
- Example: To keep 7 days of logs, one log file per day named
- <literal>server_log.Mon</literal>, <literal>server_log.Tue</literal>,
- etc, and automatically overwrite last week's log with this week's log,
- set <varname>log_filename</varname> to <literal>server_log.%a</literal>,
- <varname>log_truncate_on_rotation</varname> to <literal>true</literal>, and
- <varname>log_rotation_age</varname> to <literal>1440</literal>.
- </para>
- <para>
- Example: To keep 24 hours of logs, one log file per hour, but
- also rotate sooner if the log file size exceeds 1GB, set
- <varname>log_filename</varname> to <literal>server_log.%H%M</literal>,
- <varname>log_truncate_on_rotation</varname> to <literal>true</literal>,
- <varname>log_rotation_age</varname> to <literal>60</literal>, and
- <varname>log_rotation_size</varname> to <literal>1000000</literal>.
- Including <literal>%M</> in <varname>log_filename</varname> allows
- any size-driven rotations that may occur to select a filename
- different from the hour's initial filename.
- </para>
- </listitem>
+ <indexterm>
+ <primary><varname>log_truncate_on_rotation</> configuration parameter</primary>
+ </indexterm>
+ <listitem>
+ <para>
+ When <varname>redirect_stderr</varname> is enabled, this option will cause
+ <productname>PostgreSQL</productname> to truncate (overwrite),
+ rather than append to, any existing log file of the same name.
+ However, truncation will occur only when a new file is being opened
+ due to time-based rotation, not during server startup or size-based
+ rotation. When false, pre-existing files will be appended to in
+ all cases. For example, using this option in combination with
+ a <varname>log_filename</varname> like <literal>postgresql-%H.log</literal>
+ would result in generating twenty-four hourly log files and then
+ cyclically overwriting them.
+ This option can only be set at server start or in the
+ <filename>postgresql.conf</filename> configuration file.
+ </para>
+ <para>
+ Example: To keep 7 days of logs, one log file per day named
+ <literal>server_log.Mon</literal>, <literal>server_log.Tue</literal>,
+ etc, and automatically overwrite last week's log with this week's log,
+ set <varname>log_filename</varname> to <literal>server_log.%a</literal>,
+ <varname>log_truncate_on_rotation</varname> to <literal>true</literal>, and
+ <varname>log_rotation_age</varname> to <literal>1440</literal>.
+ </para>
+ <para>
+ Example: To keep 24 hours of logs, one log file per hour, but
+ also rotate sooner if the log file size exceeds 1GB, set
+ <varname>log_filename</varname> to <literal>server_log.%H%M</literal>,
+ <varname>log_truncate_on_rotation</varname> to <literal>true</literal>,
+ <varname>log_rotation_age</varname> to <literal>60</literal>, and
+ <varname>log_rotation_size</varname> to <literal>1000000</literal>.
+ Including <literal>%M</> in <varname>log_filename</varname> allows
+ any size-driven rotations that may occur to select a filename
+ different from the hour's initial filename.
+ </para>
+ </listitem>
</varlistentry>
<varlistentry id="guc-syslog-facility" xreflabel="syslog_facility">
<term><varname>syslog_facility</varname> (<type>string</type>)</term>
- <listitem>
- <para>
- When logging to <application>syslog</> is enabled, this option
- determines the <application>syslog</application>
- <quote>facility</quote> to be used. You may choose
- from <literal>LOCAL0</>, <literal>LOCAL1</>,
- <literal>LOCAL2</>, <literal>LOCAL3</>, <literal>LOCAL4</>,
- <literal>LOCAL5</>, <literal>LOCAL6</>, <literal>LOCAL7</>;
- the default is <literal>LOCAL0</>. See also the
- documentation of your system's
- <application>syslog</application> daemon.
- This option can only be set at server start.
- </para>
- </listitem>
+ <indexterm>
+ <primary><varname>syslog_facility</> configuration parameter</primary>
+ </indexterm>
+ <listitem>
+ <para>
+ When logging to <application>syslog</> is enabled, this option
+ determines the <application>syslog</application>
+ <quote>facility</quote> to be used. You may choose
+ from <literal>LOCAL0</>, <literal>LOCAL1</>,
+ <literal>LOCAL2</>, <literal>LOCAL3</>, <literal>LOCAL4</>,
+ <literal>LOCAL5</>, <literal>LOCAL6</>, <literal>LOCAL7</>;
+ the default is <literal>LOCAL0</>. See also the
+ documentation of your system's
+ <application>syslog</application> daemon.
+ This option can only be set at server start.
+ </para>
+ </listitem>
</varlistentry>
<varlistentry id="guc-syslog-ident" xreflabel="syslog_ident">
<term><varname>syslog_ident</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>syslog_identity</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
When logging to <application>syslog</> is enabled, this option
<varlistentry id="guc-client-min-messages" xreflabel="client_min_messages">
<term><varname>client_min_messages</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>client_min_messages</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Controls which message levels are sent to the client.
<varlistentry id="guc-log-min-messages" xreflabel="log_min_messages">
<term><varname>log_min_messages</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>log_min_messages</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Controls which message levels are written to the server log.
<varlistentry id="guc-log-error-verbosity" xreflabel="log_error_verbosity">
<term><varname>log_error_verbosity</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>log_error_verbosity</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Controls the amount of detail written in the server log for each
<varlistentry id="guc-log-min-error-statement" xreflabel="log_min_error_statement">
<term><varname>log_min_error_statement</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>log_min_error_statement</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Controls whether or not the SQL statement that causes an error
<varlistentry id="guc-log-min-duration-statement" xreflabel="log_min_duration_statement">
<term><varname>log_min_duration_statement</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>log_min_duration_statement</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets a minimum statement execution time (in milliseconds)
<varlistentry id="guc-silent-mode" xreflabel="silent_mode">
<term><varname>silent_mode</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>silent_mode</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Runs the server silently. If this option is set, the server
<term><varname>debug_print_rewritten</varname> (<type>boolean</type>)</term>
<term><varname>debug_print_plan</varname> (<type>boolean</type>)</term>
<term><varname>debug_pretty_print</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>debug_print_parse</> configuration parameter</primary>
+ </indexterm>
+ <indexterm>
+ <primary><varname>debug_print_rewritten</> configuration parameter</primary>
+ </indexterm>
+ <indexterm>
+ <primary><varname>debug_print_plan</> configuration parameter</primary>
+ </indexterm>
+ <indexterm>
+ <primary><varname>debug_pretty_print</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
These options enable various debugging output to be sent to
<varlistentry id="guc-log-connections" xreflabel="log_connections">
<term><varname>log_connections</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>log_connections</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
This outputs a line to the server logs detailing each successful
<varlistentry id="guc-log-disconnections" xreflabel="log_disconnections">
<term><varname>log_disconnections</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>log_disconnections</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
This outputs a line in the server logs similar to
<varlistentry id="guc-log-duration" xreflabel="log_duration">
<term><varname>log_duration</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>log_duration</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Causes the duration of every completed statement which satisfies
<varlistentry id="guc-log-line-prefix" xreflabel="log_line_prefix">
<term><varname>log_line_prefix</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>log_line_prefix</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
This is a <function>printf</>-style string that is output at the
<varlistentry id="guc-log-statement" xreflabel="log_statement">
<term><varname>log_statement</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>log_statement</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Controls which SQL statements are logged. Valid values are
<varlistentry id="guc-log-hostname" xreflabel="log_hostname">
<term><varname>log_hostname</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>log_hostname</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
By default, connection logs only show the IP address of the
<term><varname>log_parser_stats</varname> (<type>boolean</type>)</term>
<term><varname>log_planner_stats</varname> (<type>boolean</type>)</term>
<term><varname>log_executor_stats</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>log_statement_stats</> configuration parameter</primary>
+ </indexterm>
+ <indexterm>
+ <primary><varname>log_parser_stats</> configuration parameter</primary>
+ </indexterm>
+ <indexterm>
+ <primary><varname>log_planner_stats</> configuration parameter</primary>
+ </indexterm>
+ <indexterm>
+ <primary><varname>log_executor_stats</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
For each query, write performance statistics of the respective
<varlistentry id="guc-stats-start-collector" xreflabel="stats_start_collector">
<term><varname>stats_start_collector</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>stats_start_collector</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Controls whether the server should start the
<varlistentry id="guc-stats-command-string" xreflabel="stats_command_string">
<term><varname>stats_command_string</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>stats_command_string</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Enables the collection of statistics on the currently
<varlistentry id="guc-stats-block-level" xreflabel="guc_stats_block_level">
<term><varname>stats_block_level</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>stats_block_level</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Enables the collection of block-level statistics on database
<varlistentry id="guc-stats-row-level" xreflabel="guc_stats_row_level">
<term><varname>stats_row_level</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>stats_row_level</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Enables the collection of row-level statistics on database
<varlistentry id="guc-stats-reset-on-server-start" xreflabel="stats_reset_on_server_start">
<term><varname>stats_reset_on_server_start</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>stats_reset_on_server_start</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
If on, collected statistics are zeroed out whenever the server
<varlistentry id="guc-search-path" xreflabel="search_path">
<term><varname>search_path</varname> (<type>string</type>)</term>
- <indexterm><primary>search_path</></>
+ <indexterm>
+ <primary><varname>search_path</> configuration parameter</primary>
+ </indexterm>
<indexterm><primary>path</><secondary>for schemas</></>
<listitem>
<para>
<varlistentry id="guc-default-tablespace" xreflabel="default_tablespace">
<term><varname>default_tablespace</varname> (<type>string</type>)</term>
- <indexterm><primary>default_tablespace</></>
+ <indexterm>
+ <primary><varname>default_tablespace</> configuration parameter</primary>
+ </indexterm>
<indexterm><primary>tablespace</><secondary>default</></>
<listitem>
<para>
<varlistentry id="guc-check-function-bodies" xreflabel="check_function_bodies">
<term><varname>check_function_bodies</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>check_function_bodies</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
This parameter is normally true. When set to false, it disables
<indexterm>
<primary>transaction isolation level</primary>
</indexterm>
-
+ <indexterm>
+ <primary><varname>default_transaction_isolation</> configuration parameter</primary>
+ </indexterm>
<term><varname>default_transaction_isolation</varname> (<type>string</type>)</term>
<listitem>
<para>
<indexterm>
<primary>read-only transaction</primary>
</indexterm>
+ <indexterm>
+ <primary><varname>default_transaction_read_only</> configuration parameter</primary>
+ </indexterm>
<term><varname>default_transaction_read_only</varname> (<type>boolean</type>)</term>
<listitem>
<varlistentry id="guc-statement-timeout" xreflabel="statement_timeout">
<term><varname>statement_timeout</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>statement_timeout</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Aborts any statement that takes over the specified number of
<varlistentry id="guc-datestyle" xreflabel="DateStyle">
<term><varname>DateStyle</varname> (<type>string</type>)</term>
- <indexterm><primary>date style</></>
+ <indexterm>
+ <primary><varname>DateStyle</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the display format for date and time values, as well as the
<varlistentry id="guc-timezone" xreflabel="timezone">
<term><varname>timezone</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>timezone</> configuration parameter</primary>
+ </indexterm>
<indexterm><primary>time zone</></>
<listitem>
<para>
<varlistentry id="guc-australian-timezones" xreflabel="australian_timezones">
<term><varname>australian_timezones</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>australian_timezones</> configuration parameter</primary>
+ </indexterm>
<indexterm><primary>time zone</><secondary>Australian</></>
<listitem>
<para>
<primary>floating-point</primary>
<secondary>display</secondary>
</indexterm>
+ <indexterm>
+ <primary><varname>extra_float_digits</> configuration parameter</primary>
+ </indexterm>
<term><varname>extra_float_digits</varname> (<type>integer</type>)</term>
<listitem>
<varlistentry id="guc-client-encoding" xreflabel="client_encoding">
<term><varname>client_encoding</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>client_encoding</> configuration parameter</primary>
+ </indexterm>
<indexterm><primary>character set</></>
<listitem>
<para>
<varlistentry id="guc-lc-messages" xreflabel="lc_messages">
<term><varname>lc_messages</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>lc_messages</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the language in which messages are displayed. Acceptable
<varlistentry id="guc-lc-monetary" xreflabel="lc_monetary">
<term><varname>lc_monetary</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>lc_monetary</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the locale to use for formatting monetary amounts, for
<varlistentry id="guc-lc-numeric" xreflabel="lc_numeric">
<term><varname>lc_numeric</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>lc_numeric</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the locale to use for formatting numbers, for example
<varlistentry id="guc-lc-time" xreflabel="lc_time">
<term><varname>lc_time</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>lc_time</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Sets the locale to use for formatting date and time values.
<varlistentry id="guc-explain-pretty-print" xreflabel="explain_pretty_print">
<term><varname>explain_pretty_print</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>explain_pretty_print</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Determines whether <command>EXPLAIN VERBOSE</> uses the
<varlistentry id="guc-dynamic-library-path" xreflabel="dynamic_library_path">
<term><varname>dynamic_library_path</varname> (<type>string</type>)</term>
- <indexterm><primary>dynamic_library_path</></>
+ <indexterm>
+ <primary><varname>dynamic_library_path</> configuration parameter</primary>
+ </indexterm>
<indexterm><primary>dynamic loading</></>
<listitem>
<para>
<primary>timeout</primary>
<secondary>deadlock</secondary>
</indexterm>
+ <indexterm>
+ <primary><varname>deadlock_timeout</> configuration parameter</primary>
+ </indexterm>
<term><varname>deadlock_timeout</varname> (<type>integer</type>)</term>
<listitem>
<varlistentry id="guc-max-locks-per-transaction" xreflabel="max_locks_per_transaction">
<term><varname>max_locks_per_transaction</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>max_locks_per_transaction</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
The shared lock table is sized on the assumption that at most
<varlistentry id="guc-add-missing-from" xreflabel="add_missing_from">
<term><varname>add_missing_from</varname> (<type>boolean</type>)</term>
<indexterm><primary>FROM</><secondary>missing</></>
+ <indexterm>
+ <primary><varname>add_missing_from</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
When <literal>true</>, tables that are referenced by a query will be
<varlistentry id="guc-regex-flavor" xreflabel="regex_flavor">
<term><varname>regex_flavor</varname> (<type>string</type>)</term>
<indexterm><primary>regular expressions</></>
+ <indexterm>
+ <primary><varname>regex_flavor</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
The regular expression <quote>flavor</> can be set to
<varlistentry id="guc-sql-inheritance" xreflabel="sql_inheritance">
<term><varname>sql_inheritance</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>sql_inheritance</> configuration parameter</primary>
+ </indexterm>
<indexterm><primary>inheritance</></>
<listitem>
<para>
<varlistentry id="guc-default-with-oids" xreflabel="default_with_oids">
<term><varname>default_with_oids</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>default_with_oids</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
This controls whether <command>CREATE TABLE</command> and
<varlistentry id="guc-transform-null-equals" xreflabel="transform_null_equals">
<term><varname>transform_null_equals</varname> (<type>boolean</type>)</term>
<indexterm><primary>IS NULL</></>
+ <indexterm>
+ <primary><varname>transform_null_equals</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
When turned on, expressions of the form
<varlistentry id="guc-block-size" xreflabel="block_size">
<term><varname>block_size</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>block_size</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Shows the size of a disk block. It is determined by the value
<varlistentry id="guc-integer-datetimes" xreflabel="integer_datetimes">
<term><varname>integer_datetimes</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>integer_datetimes</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Shows whether <productname>PostgreSQL</productname> was built
<varlistentry id="guc-lc-collate" xreflabel="lc_collate">
<term><varname>lc_collate</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>lc_collate</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Shows the locale in which sorting of textual data is done.
<varlistentry id="guc-lc-ctype" xreflabel="lc_ctype">
<term><varname>lc_ctype</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>lc_ctype</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Shows the locale that determines character classifications.
<varlistentry id="guc-max-function-args" xreflabel="max_function_args">
<term><varname>max_function_args</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>max_function_args</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Shows the maximum number of function arguments. It is determined by
<varlistentry id="guc-max-identifier-length" xreflabel="max_identifier_length">
<term><varname>max_identifier_length</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>max_identifier_length</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Shows the maximum identifier length. It is determined as one
<varlistentry id="guc-max-index-keys" xreflabel="max_index_keys">
<term><varname>max_index_keys</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>max_index_keys</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Shows the maximum number of index keys. It is determined by
<varlistentry id="guc-server-encoding" xreflabel="server_encoding">
<term><varname>server_encoding</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>server_encoding</> configuration parameter</primary>
+ </indexterm>
<indexterm><primary>character set</></>
<listitem>
<para>
<varlistentry id="guc-server-version" xreflabel="server_version">
<term><varname>server_version</varname> (<type>string</type>)</term>
+ <indexterm>
+ <primary><varname>server_version</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Shows the version number of the server. It is determined by the
<varlistentry id="guc-custom-variable-classes" xreflabel="custom-variable-classes">
<term><varname>custom_variable_classes</varname> (<type>string</type>)</term>
- <indexterm><primary>custom_variable_classes</></>
+ <indexterm>
+ <primary><varname>custom_variable_classes</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
This variable specifies one or several class names to be used for
<variablelist>
<varlistentry id="guc-debug-assertions" xreflabel="debug_assertions">
<term><varname>debug_assertions</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>debug_assertions</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Turns on various assertion checks. This is a debugging aid. If
<varlistentry id="guc-debug-shared-buffers" xreflabel="debug_shared_buffers">
<term><varname>debug_shared_buffers</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>debug_shared_buffers</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Number of seconds between ARC reports.
<varlistentry id="guc-pre-auth-delay" xreflabel="pre_auth_delay">
<term><varname>pre_auth_delay</varname> (<type>integer</type>)</term>
+ <indexterm>
+ <primary><varname>pre_auth_delay</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
If nonzero, a delay of this many seconds occurs just after a new
<varlistentry id="guc-trace-notify" xreflabel="trace_notify">
<term><varname>trace_notify</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>trace_notify</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Generates a great amount of debugging output for the
<varlistentry id="guc-wal-debug" xreflabel="wal_debug">
<term><varname>wal_debug</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>wal_debug</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
If true, emit WAL-related debugging output. This option is
<varlistentry id="guc-zero-damaged-pages" xreflabel="zero-damaged-pages">
<term><varname>zero_damaged_pages</varname> (<type>boolean</type>)</term>
+ <indexterm>
+ <primary><varname>zero_damaged_pages</> configuration parameter</primary>
+ </indexterm>
<listitem>
<para>
Detection of a damaged page header normally causes
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