/usr/share/python3-postgresql/libsys.sql is in python3-postgresql 1.1.0-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# libsys.sql - SQL to support driver features
##
-- Queries for dealing with the PostgreSQL catalogs for supporting the driver.
[lookup_type::first]
SELECT
ns.nspname as namespace,
bt.typname,
bt.typtype,
bt.typlen,
bt.typelem,
bt.typrelid,
ae.oid AS ae_typid,
ae.typreceive::oid != 0 AS ae_hasbin_input,
ae.typsend::oid != 0 AS ae_hasbin_output
FROM pg_catalog.pg_type bt
LEFT JOIN pg_type ae
ON (
bt.typlen = -1 AND
bt.typelem != 0 AND
bt.typelem = ae.oid
)
LEFT JOIN pg_catalog.pg_namespace ns
ON (ns.oid = bt.typnamespace)
WHERE bt.oid = $1
[lookup_composite]
-- Get the type Oid and name of the attributes in `attnum` order.
SELECT
CAST(atttypid AS oid) AS atttypid,
CAST(attname AS text) AS attname,
tt.typtype = 'd' AS is_domain
FROM
pg_catalog.pg_type t LEFT JOIN pg_catalog.pg_attribute a
ON (t.typrelid = a.attrelid)
LEFT JOIN pg_type tt ON (a.atttypid = tt.oid)
WHERE
attrelid = $1 AND NOT attisdropped AND attnum > 0
ORDER BY attnum ASC
[lookup_basetype_recursive]
SELECT
(CASE WHEN tt.typtype = 'd' THEN
(WITH RECURSIVE typehierarchy(typid, depth) AS (
SELECT
t2.typbasetype,
0
FROM
pg_type t2
WHERE
t2.oid = tt.oid
UNION ALL
SELECT
t2.typbasetype,
th.depth + 1
FROM
pg_type t2,
typehierarchy th
WHERE
th.typid = t2.oid
AND t2.typbasetype != 0
) SELECT typid FROM typehierarchy ORDER BY depth DESC LIMIT 1)
ELSE NULL
END) AS basetypid
FROM
pg_catalog.pg_type tt
WHERE
tt.oid = $1
[lookup_basetype]
SELECT
tt.typbasetype
FROM
pg_catalog.pg_type tt
WHERE
tt.oid = $1
[lookup_procedures]
SELECT
pg_proc.oid,
pg_proc.*,
pg_proc.oid::regproc AS _proid,
pg_proc.oid::regprocedure as procedure_id,
COALESCE(string_to_array(trim(replace(textin(oidvectorout(proargtypes)), ',', ' '), '{}'), ' ')::oid[], '{}'::oid[])
AS proargtypes,
(pg_type.oid = 'record'::regtype or pg_type.typtype = 'c') AS composite
FROM
pg_catalog.pg_proc LEFT JOIN pg_catalog.pg_type ON (
pg_proc.prorettype = pg_type.oid
)
[lookup_procedure_oid::first]
*[lookup_procedures]
WHERE pg_proc.oid = $1
[lookup_procedure_rp::first]
*[lookup_procedures]
WHERE pg_proc.oid = regprocedurein($1)
[lookup_prepared_xacts::first]
SELECT
COALESCE(ARRAY(
SELECT
gid::text
FROM
pg_catalog.pg_prepared_xacts
WHERE
database = current_database()
AND (
owner = $1::text
OR (
(SELECT rolsuper FROM pg_roles WHERE rolname = $1::text)
)
)
ORDER BY prepared ASC
), ('{}'::text[]))
[regtypes::column]
SELECT pg_catalog.regtypein(pg_catalog.textout(($1::text[])[i]))::oid AS typoid
FROM pg_catalog.generate_series(1, array_upper($1::text[], 1)) AS g(i)
[xact_is_prepared::first]
SELECT TRUE FROM pg_catalog.pg_prepared_xacts WHERE gid::text = $1
[get_statement_source::first]
SELECT statement FROM pg_catalog.pg_prepared_statements WHERE name = $1
[setting_get]
SELECT setting FROM pg_catalog.pg_settings WHERE name = $1
[setting_set::first]
SELECT pg_catalog.set_config($1, $2, false)
[setting_len::first]
SELECT count(*) FROM pg_catalog.pg_settings
[setting_item]
SELECT name, setting FROM pg_catalog.pg_settings WHERE name = $1
[setting_mget]
SELECT name, setting FROM pg_catalog.pg_settings WHERE name = ANY ($1)
[setting_keys]
SELECT name FROM pg_catalog.pg_settings ORDER BY name
[setting_values]
SELECT setting FROM pg_catalog.pg_settings ORDER BY name
[setting_items]
SELECT name, setting FROM pg_catalog.pg_settings ORDER BY name
[setting_update]
SELECT
($1::text[][])[i][1] AS key,
pg_catalog.set_config(($1::text[][])[i][1], $1[i][2], false) AS value
FROM
pg_catalog.generate_series(1, array_upper(($1::text[][]), 1)) g(i)
[startup_data:transient:first]
-- 8.2 and greater
SELECT
pg_catalog.version()::text AS version,
backend_start::text,
client_addr::text,
client_port::int
FROM pg_catalog.pg_stat_activity WHERE procpid = pg_catalog.pg_backend_pid()
UNION ALL SELECT
pg_catalog.version()::text AS version,
NULL::text AS backend_start,
NULL::text AS client_addr,
NULL::int AS client_port
LIMIT 1;
[startup_data_92:transient:first]
-- 9.2 and greater
SELECT
pg_catalog.version()::text AS version,
backend_start::text,
client_addr::text,
client_port::int
FROM pg_catalog.pg_stat_activity WHERE pid = pg_catalog.pg_backend_pid()
UNION ALL SELECT
pg_catalog.version()::text AS version,
NULL::text AS backend_start,
NULL::text AS client_addr,
NULL::int AS client_port
LIMIT 1;
[startup_data_no_start:transient:first]
-- 8.1 only, but is unused as often the backend's activity row is not
-- immediately present.
SELECT
pg_catalog.version()::text AS version,
NULL::text AS backend_start,
client_addr::text,
client_port::int
FROM pg_catalog.pg_stat_activity WHERE procpid = pg_catalog.pg_backend_pid();
[startup_data_only_version:transient:first]
-- In 8.0, there's nothing there.
SELECT
pg_catalog.version()::text AS version,
NULL::text AS backend_start,
NULL::text AS client_addr,
NULL::int AS client_port;
[terminate_backends:transient:column]
-- Terminate all except mine.
SELECT
procpid, pg_catalog.pg_terminate_backend(procpid)
FROM
pg_catalog.pg_stat_activity
WHERE
procpid != pg_catalog.pg_backend_pid()
[terminate_backends_92:transient:column]
-- Terminate all except mine. 9.2 and later
SELECT
pid, pg_catalog.pg_terminate_backend(pid)
FROM
pg_catalog.pg_stat_activity
WHERE
pid != pg_catalog.pg_backend_pid()
[cancel_backends:transient:column]
-- Cancel all except mine.
SELECT
procpid, pg_catalog.pg_cancel_backend(procpid)
FROM
pg_catalog.pg_stat_activity
WHERE
procpid != pg_catalog.pg_backend_pid()
[cancel_backends_92:transient:column]
-- Cancel all except mine. 9.2 and later
SELECT
pid, pg_catalog.pg_cancel_backend(pid)
FROM
pg_catalog.pg_stat_activity
WHERE
pid != pg_catalog.pg_backend_pid()
[sizeof_db:transient:first]
SELECT pg_catalog.pg_database_size(current_database())::bigint
[sizeof_cluster:transient:first]
SELECT SUM(pg_catalog.pg_database_size(datname))::bigint FROM pg_database
[sizeof_relation::first]
SELECT pg_catalog.pg_relation_size($1::text)::bigint
[pg_reload_conf:transient:]
SELECT pg_reload_conf()
[languages:transient:column]
SELECT lanname FROM pg_catalog.pg_language
[listening_channels:transient:column]
SELECT channel FROM pg_catalog.pg_listening_channels() AS x(channel)
[listening_relations:transient:column]
-- listening_relations: old version of listening_channels.
SELECT relname as channel FROM pg_catalog.pg_listener
WHERE listenerpid = pg_catalog.pg_backend_pid();
[notify::first]
-- 9.0 and greater
SELECT
COUNT(pg_catalog.pg_notify(($1::text[])[i][1], $1[i][2]) IS NULL)
FROM
pg_catalog.generate_series(1, array_upper($1, 1)) AS g(i)
[release_advisory_shared]
SELECT
CASE WHEN ($2::int8[])[i] IS NULL
THEN
pg_catalog.pg_advisory_unlock_shared(($1::int4[])[i][1], $1[i][2])
ELSE
pg_catalog.pg_advisory_unlock_shared($2[i])
END AS released
FROM
pg_catalog.generate_series(1, COALESCE(array_upper($2::int8[], 1), array_upper($1::int4[], 1))) AS g(i)
[acquire_advisory_shared]
SELECT COUNT((
CASE WHEN ($2::int8[])[i] IS NULL
THEN
pg_catalog.pg_advisory_lock_shared(($1::int4[])[i][1], $1[i][2])
ELSE
pg_catalog.pg_advisory_lock_shared($2[i])
END
) IS NULL) AS acquired
FROM
pg_catalog.generate_series(1, COALESCE(array_upper($2::int8[], 1), array_upper($1::int4[], 1))) AS g(i)
[try_advisory_shared]
SELECT
CASE WHEN ($2::int8[])[i] IS NULL
THEN
pg_catalog.pg_try_advisory_lock_shared(($1::int4[])[i][1], $1[i][2])
ELSE
pg_catalog.pg_try_advisory_lock_shared($2[i])
END AS acquired
FROM
pg_catalog.generate_series(1, COALESCE(array_upper($2::int8[], 1), array_upper($1::int4[], 1))) AS g(i)
[release_advisory_exclusive]
SELECT
CASE WHEN ($2::int8[])[i] IS NULL
THEN
pg_catalog.pg_advisory_unlock(($1::int4[])[i][1], $1[i][2])
ELSE
pg_catalog.pg_advisory_unlock($2[i])
END AS released
FROM
pg_catalog.generate_series(1, COALESCE(array_upper($2::int8[], 1), array_upper($1::int4[], 1))) AS g(i)
[acquire_advisory_exclusive]
SELECT COUNT((
CASE WHEN ($2::int8[])[i] IS NULL
THEN
pg_catalog.pg_advisory_lock(($1::int4[])[i][1], $1[i][2])
ELSE
pg_catalog.pg_advisory_lock($2[i])
END
) IS NULL) AS acquired -- Guaranteed to be acquired once complete.
FROM
pg_catalog.generate_series(1, COALESCE(array_upper($2::int8[], 1), array_upper($1::int4[], 1))) AS g(i)
[try_advisory_exclusive]
SELECT
CASE WHEN ($2::int8[])[i] IS NULL
THEN
pg_catalog.pg_try_advisory_lock(($1::int4[])[i][1], $1[i][2])
ELSE
pg_catalog.pg_try_advisory_lock($2[i])
END AS acquired
FROM
pg_catalog.generate_series(1, COALESCE(array_upper($2::int8[], 1), array_upper($1::int4[], 1))) AS g(i)
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