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Postgres FD Implementation
Commit 23185085 authored by Neil Conway's avatar Neil Conway
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Add index entries for all GUC configuration parameters.

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doc/src/sgml/runtime.sgml
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$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">
......@@ -570,6 +570,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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.
......@@ -580,6 +583,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -591,6 +597,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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.
......@@ -601,6 +610,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -612,6 +624,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -674,6 +689,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -693,7 +711,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -705,6 +725,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -728,6 +751,9 @@ SET ENABLE_SEQSCAN TO OFF;
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
......@@ -748,9 +774,11 @@ SET ENABLE_SEQSCAN TO OFF;
</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
......@@ -764,6 +792,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -780,6 +811,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -814,6 +848,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -835,6 +872,10 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -848,10 +889,10 @@ SET ENABLE_SEQSCAN TO OFF;
</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
......@@ -863,6 +904,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -878,6 +922,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -888,6 +935,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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.
......@@ -933,6 +983,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -960,6 +1013,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -982,6 +1038,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1000,6 +1059,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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.
......@@ -1026,6 +1088,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1039,6 +1104,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1058,6 +1126,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1075,7 +1146,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1152,6 +1225,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1169,6 +1245,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1181,6 +1260,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1193,6 +1275,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1205,6 +1290,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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.
......@@ -1255,6 +1343,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1276,6 +1367,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1289,6 +1383,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1327,9 +1424,8 @@ SET ENABLE_SEQSCAN TO OFF;
<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>
......@@ -1378,6 +1474,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1396,6 +1495,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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.
......@@ -1408,6 +1510,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1427,6 +1532,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1446,6 +1554,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1458,6 +1569,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1470,6 +1584,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1488,6 +1605,9 @@ SET ENABLE_SEQSCAN TO OFF;
<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
......@@ -1543,6 +1663,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1554,6 +1677,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1564,11 +1690,13 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
</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
......@@ -1580,6 +1708,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1591,6 +1722,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1603,11 +1737,13 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
</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
......@@ -1621,6 +1757,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1634,6 +1773,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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</>
......@@ -1663,6 +1805,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1687,6 +1832,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1701,6 +1849,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1712,6 +1863,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1724,6 +1878,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1749,6 +1906,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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>
......@@ -1763,6 +1923,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1778,6 +1941,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1800,6 +1966,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1814,6 +1983,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1828,6 +2000,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1846,6 +2021,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1861,6 +2039,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1874,6 +2055,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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</>
......@@ -1883,7 +2067,7 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
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>
......@@ -1944,6 +2128,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -1962,144 +2149,168 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2121,6 +2332,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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.
......@@ -2138,6 +2352,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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.
......@@ -2157,6 +2374,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2169,6 +2389,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2193,6 +2416,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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)
......@@ -2211,6 +2437,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2322,6 +2551,18 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2339,6 +2580,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2351,6 +2595,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2365,6 +2612,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2380,6 +2630,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2482,6 +2735,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2522,6 +2778,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2549,6 +2808,18 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2571,6 +2842,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2584,6 +2858,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2601,6 +2878,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2615,6 +2895,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2629,6 +2912,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2652,7 +2938,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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>
......@@ -2719,7 +3007,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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>
......@@ -2745,6 +3035,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2761,7 +3054,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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>
......@@ -2784,6 +3079,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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>
......@@ -2801,6 +3099,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2818,7 +3119,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2840,6 +3143,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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>
......@@ -2853,6 +3159,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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>
......@@ -2873,6 +3182,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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>
......@@ -2891,6 +3203,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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>
......@@ -2902,6 +3217,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2923,6 +3241,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2938,6 +3259,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2953,6 +3277,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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.
......@@ -2976,6 +3303,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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
......@@ -2987,7 +3317,9 @@ archive_command = 'copy "%p" /mnt/server/archivedir/"%f"' # Win32
<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>
......@@ -3054,6 +3386,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<primary>timeout</primary>
<secondary>deadlock</secondary>
</indexterm>
<indexterm>
<primary><varname>deadlock_timeout</> configuration parameter</primary>
</indexterm>
<term><varname>deadlock_timeout</varname> (<type>integer</type>)</term>
<listitem>
......@@ -3078,6 +3413,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<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
......@@ -3104,6 +3442,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<varlistentry id="guc-add-missing-from" xreflabel="add_missing_from">
<term><varname>add_missing_from</varname> (<type>boolean</type>)</term>
<indexterm><primary>FROM</><secondary>missing</></>
<indexterm>
<primary><varname>add_missing_from</> configuration parameter</primary>
</indexterm>
<listitem>
<para>
When <literal>true</>, tables that are referenced by a query will be
......@@ -3121,6 +3462,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<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
......@@ -3134,6 +3478,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<varlistentry id="guc-sql-inheritance" xreflabel="sql_inheritance">
<term><varname>sql_inheritance</varname> (<type>boolean</type>)</term>
<indexterm>
<primary><varname>sql_inheritance</> configuration parameter</primary>
</indexterm>
<indexterm><primary>inheritance</></>
<listitem>
<para>
......@@ -3150,6 +3497,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<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
......@@ -3187,6 +3537,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<varlistentry id="guc-transform-null-equals" xreflabel="transform_null_equals">
<term><varname>transform_null_equals</varname> (<type>boolean</type>)</term>
<indexterm><primary>IS NULL</></>
<indexterm>
<primary><varname>transform_null_equals</> configuration parameter</primary>
</indexterm>
<listitem>
<para>
When turned on, expressions of the form
......@@ -3248,6 +3601,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<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
......@@ -3262,6 +3618,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<varlistentry id="guc-integer-datetimes" xreflabel="integer_datetimes">
<term><varname>integer_datetimes</varname> (<type>boolean</type>)</term>
<indexterm>
<primary><varname>integer_datetimes</> configuration parameter</primary>
</indexterm>
<listitem>
<para>
Shows whether <productname>PostgreSQL</productname> was built
......@@ -3275,6 +3634,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<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.
......@@ -3286,6 +3648,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<varlistentry id="guc-lc-ctype" xreflabel="lc_ctype">
<term><varname>lc_ctype</varname> (<type>string</type>)</term>
<indexterm>
<primary><varname>lc_ctype</> configuration parameter</primary>
</indexterm>
<listitem>
<para>
Shows the locale that determines character classifications.
......@@ -3299,6 +3664,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<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
......@@ -3310,6 +3678,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<varlistentry id="guc-max-identifier-length" xreflabel="max_identifier_length">
<term><varname>max_identifier_length</varname> (<type>integer</type>)</term>
<indexterm>
<primary><varname>max_identifier_length</> configuration parameter</primary>
</indexterm>
<listitem>
<para>
Shows the maximum identifier length. It is determined as one
......@@ -3323,6 +3694,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<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
......@@ -3334,6 +3708,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<varlistentry id="guc-server-encoding" xreflabel="server_encoding">
<term><varname>server_encoding</varname> (<type>string</type>)</term>
<indexterm>
<primary><varname>server_encoding</> configuration parameter</primary>
</indexterm>
<indexterm><primary>character set</></>
<listitem>
<para>
......@@ -3347,6 +3724,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<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
......@@ -3372,7 +3752,9 @@ dynamic_library_path = 'C:\tools\postgresql;H:\my_project\lib;$libdir'
<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
......@@ -3434,6 +3816,9 @@ plruby.bar = true # generates error, unknown class name
<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
......@@ -3452,6 +3837,9 @@ plruby.bar = true # generates error, unknown class name
<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.
......@@ -3463,6 +3851,9 @@ plruby.bar = true # generates error, unknown class name
<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
......@@ -3476,6 +3867,9 @@ plruby.bar = true # generates error, unknown class name
<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
......@@ -3505,6 +3899,9 @@ plruby.bar = true # generates error, unknown class name
<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
......@@ -3517,6 +3914,9 @@ plruby.bar = true # generates error, unknown class name
<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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