PgBouncer configuration file.

Synopsis

[databases]
db = ...

[pgbouncer]
...

[users]
...

Description

You specify PgBouncer configuration parameters and identify user-specific configuration parameters in a configuration file.

The PgBouncer configuration file (typically named pgbouncer.ini) is specified in .ini format. Files in .ini format are composed of sections, parameters, and values. Section names are enclosed in square brackets, for example, [<section_name>]. Parameters and values are specified in key=value format. Lines beginning with a semicolon (;) or pound sign (#) are considered comment lines and are ignored.

The PgBouncer configuration file can contain %include directives, which specify another file to read and process. This enables you to split the configuration file into separate parts. For example:

%include filename

If the filename provided is not an absolute path, the file system location is taken as relative to the current working directory.

The PgBouncer configuration file includes the following sections, described in detail below:

[databases] Section

The [databases] section contains key=value pairs, where the key is a database name and the value is a libpq connect-string list of key=value pairs. Not all features known from libpq can be used (service=, .pgpass), since the actual libpq is not used.

A database name can contain characters [0-9A-Za-z_.-] without quoting. Names that contain other characters must be quoted with standard SQL identifier quoting:

  • Enclose names in double quotes (" ").
  • Represent a double-quote within an identifier with two consecutive double quote characters.

The database name * is the fallback database. PgBouncer uses the value for this key as a connect string for the requested database. Automatically-created database entries such as these are cleaned up if they remain idle longer than the time specified in autodb_idle_timeout parameter.

Database Connection Parameters

The following parameters may be included in the value to specify the location of the database.

dbname

The destination database name.

Default: the client-specified database name

host

The name or IP address of the Greenplum master host. Host names are resolved at connect time. If DNS returns several results, they are used in a round-robin manner. The DNS result is cached and the dns_max_ttl parameter determines when the cache entry expires.

If the value begins with /, then a Unix socket in the file-system namespace is used. If the value begins with @, then a Unix socket in the abstract namespace is used.

Default: not set; the connection is made through a Unix socket
port

The Greenplum Database master port.

Default: 5432
user

If user= is set, all connections to the destination database are initiated as the specified user, resulting in a single connection pool for the database.

If the user= parameter is not set, PgBouncer attempts to log in to the destination database with the user name passed by the client. In this situation, there will be one pool for each user who connects to the database.

password : If no password is specified here, the password from the auth_file or auth_query will be used.

auth_user
Override of the global auth_user setting, if specified.
client_encoding
Ask for specific client_encoding from server.
datestyle
Ask for specific datestyle from server.
timezone
Ask for specific timezone from server.

Pool Configuration

You can use the following parameters for database-specific pool configuration.

pool_size
Set the maximum size of pools for this database. If not set, the default_pool_size is used.
min_pool_size
Set the minimum pool size for this database. If not set, the global min_pool_size is used.
reserve_pool
Set additional connections for this database. If not set, reserve_pool_size is used.
connect_query
Query to be run after a connection is established, but before allowing the connection to be used by any clients. If the query raises errors, they are logged but ignored otherwise.
pool_mode
Set the pool mode specific to this database. If not set, the default pool_mode is used.
max_db_connections
Set a database-wide maximum number of PgBouncer connections for this database. The total number of connections for all pools for this database will not exceed this value.

[pgbouncer] Section

Generic Settings

logfile

The location of the log file. For daemonization (-d), either this or syslog need to be set. The log file is kept open. After log rotation, run kill -HUP pgbouncer or run the RELOAD command in the PgBouncer Administration Console.

Note that setting logfile does not by itself turn off logging to stderr. Use the command-line option -q or -d for that.

Default: not set

pidfile

The name of the pid file. Without a pidfile, you cannot run PgBouncer as a background (daemon) process.

Default: not set

listen_addr

Specifies a list of interface addresses where PgBouncer listens for TCP connections. You may also use *, which means to listen on all interfaces. If not set, only Unix socket connections are accepted.

Specify addresses numerically (IPv4/IPv6) or by name.

Default: not set

listen_port

The port PgBouncer listens on. Applies to both TCP and Unix sockets.

Default: 6432

unix_socket_dir

Specifies the location for the Unix sockets. Applies to both listening socket and server connections. If set to an empty string, Unix sockets are disabled. A value that starts with @ specifies that a Unix socket in the abstract namespace should be created.

For online reboot (-R) to work, a Unix socket needs to be configured, and it needs to be in the file-system namespace.

Default: /tmp

unix_socket_mode

Filesystem mode for the Unix socket. Ignored for sockets in the abstract namespace.

Default: 0777

unix_socket_group

Group name to use for Unix socket. Ignored for sockets in the abstract namespace.

Default: not set

user

If set, specifies the Unix user to change to after startup. This works only if PgBouncer is started as root or if it is already running as the given user.

Default: not set

auth_file

The name of the file containing the user names and passwords to load. The file format is the same as the Greenplum Database pg_auth file. Refer to the PgBouncer Authentication File Format for more information.

Default: not set

auth_hba_file

HBA configuration file to use when auth_type is hba. Refer to the Configuring HBA-based Authentication for PgBouncer and Configuring LDAP-based Authentication for PgBouncer for more information.

Default: not set

auth_type

How to authenticate users.

  • pam: Use PAM to authenticate users. auth_file is ignored. This method is not compatible with databases using the auth_user option. The service name reported to PAM is pgbouncer. PAM is not supported in the HBA configuration file.
  • hba: The actual authentication type is loaded from the auth_hba_file. This setting allows different authentication methods for different access paths, for example: connections over Unix socket use the peer auth method, connections over TCP must use TLS.
  • cert: Clients must connect with TLS using a valid client certificate. The client's username is taken from CommonName field in the certificate.
  • md5: Use MD5-based password check. auth_file may contain both MD5-encrypted or plain-text passwords. If md5 is configured and a user has a SCRAM secret, then SCRAM authentication is used automatically instead. This is the default authentication method.
  • scram-sha-256: Use password check with SCRAM-SHA-256. auth_file has to contain SCRAM secrets or plain-text passwords.
  • plain: Clear-text password is sent over wire. Deprecated.
  • trust: No authentication is performed. The username must still exist in the auth_file.
  • any: Like the trust method, but the username supplied is ignored. Requires that all databases are configured to log in with a specific user. Additionally, the console database allows any user to log in as admin.
auth_query

Query to load a user's password from the database.

Direct access to pg_shadow requires admin rights. It's preferable to use a non-superuser that calls a SECURITY DEFINER function instead.

Note that the query is run inside target database, so if a function is used it needs to be installed into each database.

Default: SELECT usename, passwd FROM pg_shadow WHERE usename=$1

auth_user

If auth_user is set, any user who is not specified in auth_file is authenticated through the auth_query query from the pg_shadow database view. PgBouncer performs this query as the auth_user Greenplum Database user. auth_user's password must be set in the auth_file. (If the auth_user does not require a password then it does not need to be defined in auth_file.)

Direct access to pg_shadow requires Greenplum Database administrative privileges. It is preferable to use a non-admin user that calls SECURITY DEFINER function instead.

Default: not set
pool_mode

Specifies when a server connection can be reused by other clients.

  • session: Connection is returned to the pool when the client disconnects. Default.
  • transaction: Connection is returned to the pool when the transaction finishes.
  • statement: Connection is returned to the pool when the current query finishes. Transactions spanning multiple statements are disallowed in this mode.
max_client_conn

Maximum number of client connections allowed. When increased, you should also increase the file descriptor limits. The actual number of file descriptors used is more than max_client_conn. The theoretical maximum used, when each user connects with its own username to the server is:

max_client_conn + (max pool_size * total databases * total users)

If a database user is specified in the connect string, all users connect using the same username. Then the theoretical maximum connections is:

max_client_conn + (max pool_size * total databases)

The theoretical maximum should be never reached, unless someone deliberately crafts a special load for it. Still, it means you should set the number of file descriptors to a safely high number. Search for ulimit in your operating system documentation.

Default: 100

default_pool_size

The number of server connections to allow per user/database pair. This can be overridden in the per-database configuration.

Default: 20

min_pool_size

Add more server connections to the pool when it is lower than this number. This improves behavior when the usual load drops and then returns suddenly after a period of total inactivity. The value is effectively capped at the pool size.

Default: 0 (disabled)

reserve_pool_size

The number of additional connections to allow for a pool (see reserve_pool_timeout). 0 disables.

Default: 0 (disabled)

reserve_pool_timeout

If a client has not been serviced in this many seconds, PgBouncer enables use of additional connections from the reserve pool. 0 disables.

Default: 5.0

max_db_connections

Do not allow more than this many server connections per database (regardless of user). This considers the PgBouncer database that the client has connected to, not the PostgreSQL database of the outgoing connection.

This can also be set per database in the [databases] section.

Note that when you hit the limit, closing a client connection to one pool will not immediately allow a server connection to be established for another pool, because the server connection for the first pool is still open. Once the server connection closes (due to idle timeout), a new server connection will immediately be opened for the waiting pool.

Default: 0 (unlimited)
max_user_connections

Do not allow more than this many server connections per user (regardless of database). This considers the PgBouncer user that is associated with a pool, which is either the user specified for the server connection or in absence of that the user the client has connected as.

This can also be set per user in the [users] section.

Note that when you hit the limit, closing a client connection to one pool will not immediately allow a server connection to be established for another pool, because the server connection for the first pool is still open. Once the server connection closes (due to idle timeout), a new server connection will immediately be opened for the waiting pool.

Default: 0 (unlimited)
server_round_robin

By default, PgBouncer reuses server connections in LIFO (last-in, first-out) order, so that a few connections get the most load. This provides the best performance when a single server serves a database. But if there is TCP round-robin behind a database IP, then it is better if PgBouncer also uses connections in that manner to achieve uniform load.

Default: 0

ignore_startup_parameters

By default, PgBouncer allows only parameters it can keep track of in startup packets: client_encoding, datestyle, timezone, and standard_conforming_strings. All others parameters raise an error. To allow other parameters, specify them here so that PgBouncer knows that they are handled by the admin and it can ignore them.

Default: empty

disable_pqexec

Disable Simple Query protocol (PQexec). Unlike Extended Query protocol, Simple Query protocol allows multiple queries in one packet, which allows some classes of SQL-injection attacks. Disabling it can improve security. This means that only clients that exclusively use Extended Query protocol will work.

Default: 0

application_name_add_host

Add the client host address and port to the application name setting set on connection start. This helps in identifying the source of bad queries. This logic applies only on start of connection. If application_name is later changed with SET, PgBouncer does not change it again.

Default: 0

conffile

Show location of the current configuration file. Changing this parameter will result in PgBouncer using another config file for next RELOAD / SIGHUP.

Default: file from command line

service_name

Used during win32 service registration.

Default: pgbouncer

job_name
Alias for service_name.
stats_period

Sets how often the averages shown in various SHOW commands are updated and how often aggregated statistics are written to the log (but see log_stats). [seconds]

Default: 60

Log Settings

syslog

Toggles syslog on and off.

Default: 0

syslog_ident

Under what name to send logs to syslog.

Default: pgbouncer (program name)

syslog_facility

Under what facility to send logs to syslog. Some possibilities are: auth, authpriv, daemon, user, local0-7.

Default: daemon

log_connections

Log successful logins.

Default: 1

log_disconnections

Log disconnections, with reasons.

Default: 1

log_pooler_errors

Log error messages that the pooler sends to clients.

Default: 1

log_stats

Write aggregated statistics into the log, every stats_period. This can be disabled if external monitoring tools are used to grab the same data from SHOW commands.

Default: 1

verbose

Increase verbosity. Mirrors the -v switch on the command line. Using -v -v on the command line is the same as verbose=2.

Default: 0

Console Access Control

admin_users

Comma-separated list of database users that are allowed to connect and run all commands on the PgBouncer Administration Console. Ignored when auth_type=any, in which case any username is allowed in as admin.

Default: empty

stats_users

Comma-separated list of database users that are allowed to connect and run read-only queries on the console. This includes all SHOW commands except SHOW FDS.

Default: empty

Connection Sanity Checks, Timeouts

server_reset_query

Query sent to server on connection release, before making it available to other clients. At that moment no transaction is in progress so it should not include ABORT or ROLLBACK.

The query should clean any changes made to a database session so that the next client gets a connection in a well-defined state. Default is DISCARD ALL which cleans everything, but that leaves the next client no pre-cached state. It can be made lighter, e.g. DEALLOCATE ALL to just drop prepared statements, if the application does not break when some state is kept around.

Note: Greenplum Database does not support DISCARD ALL.

When transaction pooling is used, the server_reset_query is not used, as clients must not use any session-based features as each transaction ends up in a different connection and thus gets a different session state.

Default: DISCARD ALL; (Not supported by Greenplum Database.)

server_reset_query_always

Whether server_reset_query should be run in all pooling modes. When this setting is off (default), the server_reset_query will be run only in pools that are in sessions-pooling mode. Connections in transaction-pooling mode should not have any need for reset query.

This setting is for working around broken setups that run applications that use session features over a transaction-pooled PgBouncer. It changes non-deterministic breakage to deterministic breakage: Clients always lose their state after each transaction.

Default: 0

server_check_delay

How long to keep released connections available for immediate re-use, without running sanity-check queries on it. If 0, then the query is run always.

Default: 30.0

server_check_query

A simple do-nothing query to test the server connection.

If an empty string, then sanity checking is disabled.

Default: SELECT 1;

server_fast_close

Disconnect a server in session pooling mode immediately or after the end of the current transaction if it is in “close_needed” mode (set by RECONNECT, RELOAD that changes connection settings, or DNS change), rather than waiting for the session end. In statement or transaction pooling mode, this has no effect since that is the default behavior there.

If because of this setting a server connection is closed before the end of the client session, the client connection is also closed. This ensures that the client notices that the session has been interrupted.

This setting makes connection configuration changes take effect sooner if session pooling and long-running sessions are used. The downside is that client sessions are liable to be interrupted by a configuration change, so client applications will need logic to reconnect and reestablish session state. But note that no transactions will be lost, because running transactions are not interrupted, only idle sessions.

Default: 0

server_lifetime

The pooler will close an unused server connections that has been connected longer than this number of seconds. Setting it to 0 means the connection is to be used only once, then closed. [seconds]

Default: 3600.0

server_idle_timeout

If a server connection has been idle more than this many seconds it is dropped. If this parameter is set to 0, timeout is disabled. [seconds]

Default: 600.0

server_connect_timeout

If connection and login will not finish in this amount of time, the connection will be closed. [seconds]

Default: 15.0

server_login_retry

If a login fails due to failure from connect() or authentication, that pooler waits this much before retrying to connect. [seconds]

Default: 15.0

client_login_timeout

If a client connects but does not manage to login in this amount of time, it is disconnected. This is needed to avoid dead connections stalling SUSPEND and thus online restart. [seconds]

Default: 60.0

autodb_idle_timeout

If database pools created automatically (via *) have been unused this many seconds, they are freed. Their statistics are also forgotten. [seconds]

Default: 3600.0

dns_max_ttl

How long to cache DNS lookups, in seconds. If a DNS lookup returns several answers, PgBouncer round-robins between them in the meantime. The actual DNS TTL is ignored. [seconds]

Default: 15.0

dns_nxdomain_ttl

How long error and NXDOMAIN DNS lookups can be cached. [seconds]

Default: 15.0

dns_zone_check_period

Period to check if zone serial numbers have changed.

PgBouncer can collect DNS zones from hostnames (everything after first dot) and then periodically check if the zone serial numbers change. If changes are detected, all hostnames in that zone are looked up again. If any host IP changes, its connections are invalidated.

Works only with UDNS and c-ares backend (--with-udns or --with-cares to configure).

Default: 0.0 (disabled)

resolv_conf

The location of a custom resolv.conf file. This is to allow specifying custom DNS servers and perhaps other name resolution options, independent of the global operating system configuration.

Requires evdns (>= 2.0.3) or c-ares (>= 1.15.0) backend.

The parsing of the file is done by the DNS backend library, not PgBouncer, so see the library's documentation for details on allowed syntax and directives.

Default: empty (use operating system defaults)

TLS settings

client_tls_sslmode

TLS mode to use for connections from clients. TLS connections are disabled by default. When enabled, client_tls_key_file and client_tls_cert_file must be also configured to set up the key and certificate PgBouncer uses to accept client connections.

  • disable: Plain TCP. If client requests TLS, it’s ignored. Default.
  • allow: If client requests TLS, it is used. If not, plain TCP is used. If client uses client-certificate, it is not validated.
  • prefer: Same as allow.
  • require: Client must use TLS. If not, client connection is rejected. If client presents a client-certificate, it is not validated.
  • verify-ca: Client must use TLS with valid client certificate.
  • verify-full: Same as verify-ca.
client_tls_key_file

Private key for PgBouncer to accept client connections.

Default: not set
client_tls_cert_file

Certificate for private key. CLients can validate it.

Default: unset
client_tls_ca_file

Root certificate to validate client certificates.

Default: unset
client_tls_protocols

Which TLS protocol versions are allowed.

Valid values: are tlsv1.0, tlsv1.1, tlsv1.2, tlsv1.3.

Shortcuts: all (tlsv1.0, tlsv1.1, tlsv1.2, tlsv1.3), secure (tlsv1.2, tlsv1.3), legacy (all).

Default: secure
client_tls_ciphers

Allowed TLS ciphers, in OpenSSL syntax. Shortcuts: default/secure, compat/legacy, insecure/all, normal, fast.

Only connections using TLS version 1.2 and lower are affected. There is currently no setting that controls the cipher choices used by TLS version 1.3 connections.

Default: fast

client_tls_ecdhcurve

Elliptic Curve name to use for ECDH key exchanges.

Allowed values: none (DH is disabled), auto (256-bit ECDH), curve name.

Default: auto
client_tls_dheparams

DHE key exchange type.

Allowed values: none (DH is disabled), auto (2048-bit DH), legacy (1024-bit DH).

Default: auto
server_tls_sslmode

TLS mode to use for connections to Greenplum Database and PostgreSQL servers. TLS connections are disabled by default.

  • disable: Plain TCP. TLS is not requested from the server. Default.
  • allow: If server rejects plain, try TLS. (PgBouncer Documentation is speculative on this.)
  • prefer: TLS connection is always requested first. When connection is refused, plain TPC is used. Server certificate is not validated.
  • require: Connection must use TLS. If server rejects it, plain TCP is not attempted. Server certificate is not validated.
  • verify-ca: Connection must use TLS and server certificate must be valid according to server_tls_ca_file. The server hostname is not verfied against the certificate.
  • verify-full: Connection must use TLS and the server certificate must be valid according to server_tls_ca_file. The server hostname must match the hostname in the certificate.
server_tls_ca_file

Root certificate file used to validate Greenplum Database and PostgreSQL server certificates.

Default: unset
server_tls_key_file

Private key for PgBouncer to authenticate against Greenplum Database or PostgreSQL server.

Default: not set
server_tls_cert_file

Certificate for private key. Greenplum Database or PostgreSQL servers can validate it.

Default: not set
server_tls_protocols

Which TLS protocol versions are allowed. Allowed values: tlsv1.0, tlsv1.1, tlsv1.2, tlsv1.3. Shortcuts: all (tlsv1.0, tlsv1.1, tlsv1.2, tlsv1.3); secure (tlsv1.2, tlsv1.3); legacy (all).

Default: secure
server_tls_ciphers

Allowed TLS ciphers, in OpenSSL syntax. Shortcuts: default/secure, compat/legacy, insecure/all, normal, fast.

Only connections using TLS version 1.2 and lower are affected. There is currently no setting that controls the cipher choices used by TLS version 1.3 connections.

Default: fast

Dangerous Timeouts

Setting the following timeouts can cause unexpected errors.

query_timeout

Queries running longer than this (seconds) are canceled. This parameter should be used only with a slightly smaller server-side statement_timeout, to apply only for network problems. [seconds]

Default: 0.0 (disabled)

query_wait_timeout

The maximum time, in seconds, queries are allowed to wait for execution. If the query is not assigned to a server during that time, the client is disconnected. This is used to prevent unresponsive servers from grabbing up connections. [seconds]

Default: 120

client_idle_timeout

Client connections idling longer than this many seconds are closed. This should be larger than the client-side connection lifetime settings, and only used for network problems. [seconds]

Default: 0.0 (disabled)

idle_transaction_timeout

If client has been in "idle in transaction" state longer than this (seconds), it is disconnected. [seconds]

Default: 0.0 (disabled)

suspend_timeout

How many seconds to wait for buffer flush during SUSPEND or reboot (-R). A connection is dropped if the flush does not succeed.

Default: 10

Low-level Network Settings

pkt_buf

Internal buffer size for packets. Affects the size of TCP packets sent and general memory usage. Actual libpq packets can be larger than this so there is no need to set it large.

Default: 4096

max_packet_size

Maximum size for packets that PgBouncer accepts. One packet is either one query or one result set row. A full result set can be larger.

Default: 2147483647

listen_backlog

Backlog argument for the listen(2) system call. It determines how many new unanswered connection attempts are kept in queue. When the queue is full, further new connection attempts are dropped.

Default: 128

sbuf_loopcnt

How many times to process data on one connection, before proceeding. Without this limit, one connection with a big result set can stall PgBouncer for a long time. One loop processes one pkt_buf amount of data. 0 means no limit.

Default: 5

so_reuseport

Specifies whether to set the socket option SO_REUSEPORT on TCP listening sockets. On some operating systems, this allows running multiple PgBouncer instances on the same host listening on the same port and having the kernel distribute the connections automatically. This option is a way to get PgBouncer to use more CPU cores. (PgBouncer is single-threaded and uses one CPU core per instance.)

The behavior in detail depends on the operating system kernel. As of this writing, this setting has the desired effect on (sufficiently recent versions of) Linux, DragonFlyBSD, and FreeBSD. (On FreeBSD, it applies the socket option SO_REUSEPORT_LB instead.). Some other operating systems support the socket option but it won't have the desired effect: It will allow multiple processes to bind to the same port but only one of them will get the connections. See your operating system's setsockopt() documentation for details.

On systems that don’t support the socket option at all, turning this setting on will result in an error.

Each PgBouncer instance on the same host needs different settings for at least unix_socket_dir and pidfile, as well as logfile if that is used. Also note that if you make use of this option, you can no longer connect to a specific PgBouncer instance via TCP/IP, which might have implications for monitoring and metrics collection.

Default: 0

tcp_defer_accept

For details on this and other TCP options, please see the tcp(7) man page.

Default: 45 on Linux, otherwise 0

tcp_socket_buffer
Default: not set
tcp_keepalive

Turns on basic keepalive with OS defaults.

On Linux, the system defaults are tcp_keepidle=7200, tcp_keepintvl=75, tcp_keepcnt=9. They are probably similar on other operating systems.

Default: 1

tcp_keepcnt
Default: not set
tcp_keepidle
Default: not set
tcp_keepintvl
Default: not set
tcp_user_timeout

Sets the TCP_USER_TIMEOUT socket option. This specifies the maximum amount of time in milliseconds that transmitted data may remain unacknowledged before the TCP connection is forcibly closed. If set to 0, then the operating system’s default is used.

Default: 0

[users] Section

This section contains key=value pairs, where the key is a user name and the value is a libpq connect-string list of key=value pairs of configuration settings specific for this user. Only a few settings are available here.

Pool configuration

pool_mode
Set the pool mode for all connections from this user. If not set, the database or default pool_mode is used.
max_user_connection
Configure a maximum for the user (i.e. all pools with the user will not have more than this many server connections).

Example Configuration Files

Minimal Configuration

[databases]
postgres = host=127.0.0.1 dbname=postgres auth_user=gpadmin

[pgbouncer]
pool_mode = session
listen_port = 6543
listen_addr = 127.0.0.1
auth_type = md5
auth_file = users.txt
logfile = pgbouncer.log
pidfile = pgbouncer.pid
admin_users = someuser
stats_users = stat_collector

Use connection parameters passed by the client:

[databases]
* =

[pgbouncer]
listen_port = 6543
listen_addr = 0.0.0.0
auth_type = trust
auth_file = bouncer/users.txt
logfile = pgbouncer.log
pidfile = pgbouncer.pid
ignore_startup_parameters=options

Database Defaults

[databases]

; foodb over unix socket
foodb =

; redirect bardb to bazdb on localhost
bardb = host=127.0.0.1 dbname=bazdb

; access to destination database will go with single user
forcedb = host=127.0.0.1 port=300 user=baz password=foo client_encoding=UNICODE datestyle=ISO

Example of a secure function for auth_query:

CREATE OR REPLACE FUNCTION pgbouncer.user_lookup(in i_username text, out uname text, out phash text)
RETURNS record AS $$
BEGIN
    SELECT usename, passwd FROM pg_catalog.pg_shadow
    WHERE usename = i_username INTO uname, phash;
    RETURN;
END;
$$ LANGUAGE plpgsql SECURITY DEFINER;
REVOKE ALL ON FUNCTION pgbouncer.user_lookup(text) FROM public, pgbouncer;
GRANT EXECUTE ON FUNCTION pgbouncer.user_lookup(text) TO pgbouncer;

See Also

pgbouncer, pgbouncer-admin, PgBouncer Configuration Page

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