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|
--
-- CREATE FUNCTION
--
-- sanity check of pg_proc catalog to the given parameters
--
CREATE USER regtest_unpriv_user;
CREATE SCHEMA temp_func_test;
GRANT ALL ON SCHEMA temp_func_test TO public;
SET search_path TO temp_func_test, public;
--
-- ARGUMENT and RETURN TYPES
--
CREATE FUNCTION functest_A_1(text, date) RETURNS bool LANGUAGE 'sql'
AS 'SELECT $1 = ''abcd'' AND $2 > ''2001-01-01''';
CREATE FUNCTION functest_A_2(text[]) RETURNS int LANGUAGE 'sql'
AS 'SELECT $1[0]::int';
CREATE FUNCTION functest_A_3() RETURNS bool LANGUAGE 'sql'
AS 'SELECT false';
SELECT proname, prorettype::regtype, proargtypes::regtype[] FROM pg_proc
WHERE oid in ('functest_A_1'::regproc,
'functest_A_2'::regproc,
'functest_A_3'::regproc) ORDER BY proname;
proname | prorettype | proargtypes
--------------+------------+-------------------
functest_a_1 | boolean | [0:1]={text,date}
functest_a_2 | integer | [0:0]={text[]}
functest_a_3 | boolean | {}
(3 rows)
--
-- IMMUTABLE | STABLE | VOLATILE
--
CREATE FUNCTION functest_B_1(int) RETURNS bool LANGUAGE 'sql'
AS 'SELECT $1 > 0';
CREATE FUNCTION functest_B_2(int) RETURNS bool LANGUAGE 'sql'
IMMUTABLE AS 'SELECT $1 > 0';
CREATE FUNCTION functest_B_3(int) RETURNS bool LANGUAGE 'sql'
STABLE AS 'SELECT $1 = 0';
CREATE FUNCTION functest_B_4(int) RETURNS bool LANGUAGE 'sql'
VOLATILE AS 'SELECT $1 < 0';
SELECT proname, provolatile FROM pg_proc
WHERE oid in ('functest_B_1'::regproc,
'functest_B_2'::regproc,
'functest_B_3'::regproc,
'functest_B_4'::regproc) ORDER BY proname;
proname | provolatile
--------------+-------------
functest_b_1 | v
functest_b_2 | i
functest_b_3 | s
functest_b_4 | v
(4 rows)
ALTER FUNCTION functest_B_2(int) VOLATILE;
ALTER FUNCTION functest_B_3(int) COST 100; -- unrelated change, no effect
SELECT proname, provolatile FROM pg_proc
WHERE oid in ('functest_B_1'::regproc,
'functest_B_2'::regproc,
'functest_B_3'::regproc,
'functest_B_4'::regproc) ORDER BY proname;
proname | provolatile
--------------+-------------
functest_b_1 | v
functest_b_2 | v
functest_b_3 | s
functest_b_4 | v
(4 rows)
--
-- SECURITY DEFINER | INVOKER
--
CREATE FUNCTION functext_C_1(int) RETURNS bool LANGUAGE 'sql'
AS 'SELECT $1 > 0';
CREATE FUNCTION functext_C_2(int) RETURNS bool LANGUAGE 'sql'
SECURITY DEFINER AS 'SELECT $1 = 0';
CREATE FUNCTION functext_C_3(int) RETURNS bool LANGUAGE 'sql'
SECURITY INVOKER AS 'SELECT $1 < 0';
SELECT proname, prosecdef FROM pg_proc
WHERE oid in ('functext_C_1'::regproc,
'functext_C_2'::regproc,
'functext_C_3'::regproc) ORDER BY proname;
proname | prosecdef
--------------+-----------
functext_c_1 | f
functext_c_2 | t
functext_c_3 | f
(3 rows)
ALTER FUNCTION functext_C_1(int) IMMUTABLE; -- unrelated change, no effect
ALTER FUNCTION functext_C_2(int) SECURITY INVOKER;
ALTER FUNCTION functext_C_3(int) SECURITY DEFINER;
SELECT proname, prosecdef FROM pg_proc
WHERE oid in ('functext_C_1'::regproc,
'functext_C_2'::regproc,
'functext_C_3'::regproc) ORDER BY proname;
proname | prosecdef
--------------+-----------
functext_c_1 | f
functext_c_2 | f
functext_c_3 | t
(3 rows)
--
-- LEAKPROOF
--
CREATE FUNCTION functext_E_1(int) RETURNS bool LANGUAGE 'sql'
AS 'SELECT $1 > 100';
CREATE FUNCTION functext_E_2(int) RETURNS bool LANGUAGE 'sql'
LEAKPROOF AS 'SELECT $1 > 100';
SELECT proname, proleakproof FROM pg_proc
WHERE oid in ('functext_E_1'::regproc,
'functext_E_2'::regproc) ORDER BY proname;
proname | proleakproof
--------------+--------------
functext_e_1 | f
functext_e_2 | t
(2 rows)
ALTER FUNCTION functext_E_1(int) LEAKPROOF;
ALTER FUNCTION functext_E_2(int) STABLE; -- unrelated change, no effect
SELECT proname, proleakproof FROM pg_proc
WHERE oid in ('functext_E_1'::regproc,
'functext_E_2'::regproc) ORDER BY proname;
proname | proleakproof
--------------+--------------
functext_e_1 | t
functext_e_2 | t
(2 rows)
ALTER FUNCTION functext_E_2(int) NOT LEAKPROOF; -- remove leakproog attribute
SELECT proname, proleakproof FROM pg_proc
WHERE oid in ('functext_E_1'::regproc,
'functext_E_2'::regproc) ORDER BY proname;
proname | proleakproof
--------------+--------------
functext_e_1 | t
functext_e_2 | f
(2 rows)
-- it takes superuser privilege to turn on leakproof, but not for turn off
ALTER FUNCTION functext_E_1(int) OWNER TO regtest_unpriv_user;
ALTER FUNCTION functext_E_2(int) OWNER TO regtest_unpriv_user;
SET SESSION AUTHORIZATION regtest_unpriv_user;
SET search_path TO temp_func_test, public;
ALTER FUNCTION functext_E_1(int) NOT LEAKPROOF;
ALTER FUNCTION functext_E_2(int) LEAKPROOF;
ERROR: only superuser can define a leakproof function
CREATE FUNCTION functext_E_3(int) RETURNS bool LANGUAGE 'sql'
LEAKPROOF AS 'SELECT $1 < 200'; -- failed
ERROR: only superuser can define a leakproof function
RESET SESSION AUTHORIZATION;
---
-- list of built-in leakproof functions
---
-- temporarily disable fancy output, so catalog changes create less diff noise
\a\t
SELECT proname, prorettype::regtype, proargtypes::regtype[]
FROM pg_proc JOIN pg_namespace ON pronamespace = pg_namespace.oid
WHERE nspname = 'pg_catalog' AND proleakproof ORDER BY proname;
abstimeeq|boolean|[0:1]={abstime,abstime}
abstimege|boolean|[0:1]={abstime,abstime}
abstimegt|boolean|[0:1]={abstime,abstime}
abstimele|boolean|[0:1]={abstime,abstime}
abstimelt|boolean|[0:1]={abstime,abstime}
abstimene|boolean|[0:1]={abstime,abstime}
biteq|boolean|[0:1]={bit,bit}
bitge|boolean|[0:1]={bit,bit}
bitgt|boolean|[0:1]={bit,bit}
bitle|boolean|[0:1]={bit,bit}
bitlt|boolean|[0:1]={bit,bit}
bitne|boolean|[0:1]={bit,bit}
booleq|boolean|[0:1]={boolean,boolean}
boolge|boolean|[0:1]={boolean,boolean}
boolgt|boolean|[0:1]={boolean,boolean}
boolle|boolean|[0:1]={boolean,boolean}
boollt|boolean|[0:1]={boolean,boolean}
boolne|boolean|[0:1]={boolean,boolean}
bpchareq|boolean|[0:1]={character,character}
bpcharne|boolean|[0:1]={character,character}
byteaeq|boolean|[0:1]={bytea,bytea}
byteage|boolean|[0:1]={bytea,bytea}
byteagt|boolean|[0:1]={bytea,bytea}
byteale|boolean|[0:1]={bytea,bytea}
bytealt|boolean|[0:1]={bytea,bytea}
byteane|boolean|[0:1]={bytea,bytea}
cash_eq|boolean|[0:1]={money,money}
cash_ge|boolean|[0:1]={money,money}
cash_gt|boolean|[0:1]={money,money}
cash_le|boolean|[0:1]={money,money}
cash_lt|boolean|[0:1]={money,money}
cash_ne|boolean|[0:1]={money,money}
chareq|boolean|[0:1]={"\"char\"","\"char\""}
charge|boolean|[0:1]={"\"char\"","\"char\""}
chargt|boolean|[0:1]={"\"char\"","\"char\""}
charle|boolean|[0:1]={"\"char\"","\"char\""}
charlt|boolean|[0:1]={"\"char\"","\"char\""}
charne|boolean|[0:1]={"\"char\"","\"char\""}
cideq|boolean|[0:1]={cid,cid}
circle_eq|boolean|[0:1]={circle,circle}
circle_ge|boolean|[0:1]={circle,circle}
circle_gt|boolean|[0:1]={circle,circle}
circle_le|boolean|[0:1]={circle,circle}
circle_lt|boolean|[0:1]={circle,circle}
circle_ne|boolean|[0:1]={circle,circle}
date_eq|boolean|[0:1]={date,date}
date_ge|boolean|[0:1]={date,date}
date_gt|boolean|[0:1]={date,date}
date_le|boolean|[0:1]={date,date}
date_lt|boolean|[0:1]={date,date}
date_ne|boolean|[0:1]={date,date}
float48eq|boolean|[0:1]={real,"double precision"}
float48ge|boolean|[0:1]={real,"double precision"}
float48gt|boolean|[0:1]={real,"double precision"}
float48le|boolean|[0:1]={real,"double precision"}
float48lt|boolean|[0:1]={real,"double precision"}
float48ne|boolean|[0:1]={real,"double precision"}
float4eq|boolean|[0:1]={real,real}
float4ge|boolean|[0:1]={real,real}
float4gt|boolean|[0:1]={real,real}
float4le|boolean|[0:1]={real,real}
float4lt|boolean|[0:1]={real,real}
float4ne|boolean|[0:1]={real,real}
float84eq|boolean|[0:1]={"double precision",real}
float84ge|boolean|[0:1]={"double precision",real}
float84gt|boolean|[0:1]={"double precision",real}
float84le|boolean|[0:1]={"double precision",real}
float84lt|boolean|[0:1]={"double precision",real}
float84ne|boolean|[0:1]={"double precision",real}
float8eq|boolean|[0:1]={"double precision","double precision"}
float8ge|boolean|[0:1]={"double precision","double precision"}
float8gt|boolean|[0:1]={"double precision","double precision"}
float8le|boolean|[0:1]={"double precision","double precision"}
float8lt|boolean|[0:1]={"double precision","double precision"}
float8ne|boolean|[0:1]={"double precision","double precision"}
int24eq|boolean|[0:1]={smallint,integer}
int24ge|boolean|[0:1]={smallint,integer}
int24gt|boolean|[0:1]={smallint,integer}
int24le|boolean|[0:1]={smallint,integer}
int24lt|boolean|[0:1]={smallint,integer}
int24ne|boolean|[0:1]={smallint,integer}
int28eq|boolean|[0:1]={smallint,bigint}
int28ge|boolean|[0:1]={smallint,bigint}
int28gt|boolean|[0:1]={smallint,bigint}
int28le|boolean|[0:1]={smallint,bigint}
int28lt|boolean|[0:1]={smallint,bigint}
int28ne|boolean|[0:1]={smallint,bigint}
int2eq|boolean|[0:1]={smallint,smallint}
int2ge|boolean|[0:1]={smallint,smallint}
int2gt|boolean|[0:1]={smallint,smallint}
int2le|boolean|[0:1]={smallint,smallint}
int2lt|boolean|[0:1]={smallint,smallint}
int2ne|boolean|[0:1]={smallint,smallint}
int42eq|boolean|[0:1]={integer,smallint}
int42ge|boolean|[0:1]={integer,smallint}
int42gt|boolean|[0:1]={integer,smallint}
int42le|boolean|[0:1]={integer,smallint}
int42lt|boolean|[0:1]={integer,smallint}
int42ne|boolean|[0:1]={integer,smallint}
int48eq|boolean|[0:1]={integer,bigint}
int48ge|boolean|[0:1]={integer,bigint}
int48gt|boolean|[0:1]={integer,bigint}
int48le|boolean|[0:1]={integer,bigint}
int48lt|boolean|[0:1]={integer,bigint}
int48ne|boolean|[0:1]={integer,bigint}
int4eq|boolean|[0:1]={integer,integer}
int4ge|boolean|[0:1]={integer,integer}
int4gt|boolean|[0:1]={integer,integer}
int4le|boolean|[0:1]={integer,integer}
int4lt|boolean|[0:1]={integer,integer}
int4ne|boolean|[0:1]={integer,integer}
int82eq|boolean|[0:1]={bigint,smallint}
int82ge|boolean|[0:1]={bigint,smallint}
int82gt|boolean|[0:1]={bigint,smallint}
int82le|boolean|[0:1]={bigint,smallint}
int82lt|boolean|[0:1]={bigint,smallint}
int82ne|boolean|[0:1]={bigint,smallint}
int84eq|boolean|[0:1]={bigint,integer}
int84ge|boolean|[0:1]={bigint,integer}
int84gt|boolean|[0:1]={bigint,integer}
int84le|boolean|[0:1]={bigint,integer}
int84lt|boolean|[0:1]={bigint,integer}
int84ne|boolean|[0:1]={bigint,integer}
int8eq|boolean|[0:1]={bigint,bigint}
int8ge|boolean|[0:1]={bigint,bigint}
int8gt|boolean|[0:1]={bigint,bigint}
int8le|boolean|[0:1]={bigint,bigint}
int8lt|boolean|[0:1]={bigint,bigint}
int8ne|boolean|[0:1]={bigint,bigint}
interval_eq|boolean|[0:1]={interval,interval}
interval_ge|boolean|[0:1]={interval,interval}
interval_gt|boolean|[0:1]={interval,interval}
interval_le|boolean|[0:1]={interval,interval}
interval_lt|boolean|[0:1]={interval,interval}
interval_ne|boolean|[0:1]={interval,interval}
lseg_eq|boolean|[0:1]={lseg,lseg}
lseg_ge|boolean|[0:1]={lseg,lseg}
lseg_gt|boolean|[0:1]={lseg,lseg}
lseg_le|boolean|[0:1]={lseg,lseg}
lseg_lt|boolean|[0:1]={lseg,lseg}
lseg_ne|boolean|[0:1]={lseg,lseg}
macaddr_eq|boolean|[0:1]={macaddr,macaddr}
macaddr_ge|boolean|[0:1]={macaddr,macaddr}
macaddr_gt|boolean|[0:1]={macaddr,macaddr}
macaddr_le|boolean|[0:1]={macaddr,macaddr}
macaddr_lt|boolean|[0:1]={macaddr,macaddr}
macaddr_ne|boolean|[0:1]={macaddr,macaddr}
nameeq|boolean|[0:1]={name,name}
namege|boolean|[0:1]={name,name}
namegt|boolean|[0:1]={name,name}
namele|boolean|[0:1]={name,name}
namelt|boolean|[0:1]={name,name}
namene|boolean|[0:1]={name,name}
network_eq|boolean|[0:1]={inet,inet}
network_ge|boolean|[0:1]={inet,inet}
network_gt|boolean|[0:1]={inet,inet}
network_le|boolean|[0:1]={inet,inet}
network_lt|boolean|[0:1]={inet,inet}
network_ne|boolean|[0:1]={inet,inet}
oideq|boolean|[0:1]={oid,oid}
oidge|boolean|[0:1]={oid,oid}
oidgt|boolean|[0:1]={oid,oid}
oidle|boolean|[0:1]={oid,oid}
oidlt|boolean|[0:1]={oid,oid}
oidne|boolean|[0:1]={oid,oid}
reltimeeq|boolean|[0:1]={reltime,reltime}
reltimege|boolean|[0:1]={reltime,reltime}
reltimegt|boolean|[0:1]={reltime,reltime}
reltimele|boolean|[0:1]={reltime,reltime}
reltimelt|boolean|[0:1]={reltime,reltime}
reltimene|boolean|[0:1]={reltime,reltime}
texteq|boolean|[0:1]={text,text}
textne|boolean|[0:1]={text,text}
tideq|boolean|[0:1]={tid,tid}
tidge|boolean|[0:1]={tid,tid}
tidgt|boolean|[0:1]={tid,tid}
tidle|boolean|[0:1]={tid,tid}
tidlt|boolean|[0:1]={tid,tid}
tidne|boolean|[0:1]={tid,tid}
time_eq|boolean|[0:1]={"time without time zone","time without time zone"}
time_ge|boolean|[0:1]={"time without time zone","time without time zone"}
time_gt|boolean|[0:1]={"time without time zone","time without time zone"}
time_le|boolean|[0:1]={"time without time zone","time without time zone"}
time_lt|boolean|[0:1]={"time without time zone","time without time zone"}
time_ne|boolean|[0:1]={"time without time zone","time without time zone"}
timestamp_eq|boolean|[0:1]={"timestamp without time zone","timestamp without time zone"}
timestamp_ge|boolean|[0:1]={"timestamp without time zone","timestamp without time zone"}
timestamp_gt|boolean|[0:1]={"timestamp without time zone","timestamp without time zone"}
timestamp_le|boolean|[0:1]={"timestamp without time zone","timestamp without time zone"}
timestamp_lt|boolean|[0:1]={"timestamp without time zone","timestamp without time zone"}
timestamp_ne|boolean|[0:1]={"timestamp without time zone","timestamp without time zone"}
timestamptz_eq|boolean|[0:1]={"timestamp with time zone","timestamp with time zone"}
timestamptz_ge|boolean|[0:1]={"timestamp with time zone","timestamp with time zone"}
timestamptz_gt|boolean|[0:1]={"timestamp with time zone","timestamp with time zone"}
timestamptz_le|boolean|[0:1]={"timestamp with time zone","timestamp with time zone"}
timestamptz_lt|boolean|[0:1]={"timestamp with time zone","timestamp with time zone"}
timestamptz_ne|boolean|[0:1]={"timestamp with time zone","timestamp with time zone"}
timetz_eq|boolean|[0:1]={"time with time zone","time with time zone"}
timetz_ge|boolean|[0:1]={"time with time zone","time with time zone"}
timetz_gt|boolean|[0:1]={"time with time zone","time with time zone"}
timetz_le|boolean|[0:1]={"time with time zone","time with time zone"}
timetz_lt|boolean|[0:1]={"time with time zone","time with time zone"}
timetz_ne|boolean|[0:1]={"time with time zone","time with time zone"}
tintervaleq|boolean|[0:1]={tinterval,tinterval}
tintervalge|boolean|[0:1]={tinterval,tinterval}
tintervalgt|boolean|[0:1]={tinterval,tinterval}
tintervalle|boolean|[0:1]={tinterval,tinterval}
tintervalleneq|boolean|[0:1]={tinterval,reltime}
tintervallenge|boolean|[0:1]={tinterval,reltime}
tintervallengt|boolean|[0:1]={tinterval,reltime}
tintervallenle|boolean|[0:1]={tinterval,reltime}
tintervallenlt|boolean|[0:1]={tinterval,reltime}
tintervallenne|boolean|[0:1]={tinterval,reltime}
tintervallt|boolean|[0:1]={tinterval,tinterval}
tintervalne|boolean|[0:1]={tinterval,tinterval}
uuid_eq|boolean|[0:1]={uuid,uuid}
uuid_ge|boolean|[0:1]={uuid,uuid}
uuid_gt|boolean|[0:1]={uuid,uuid}
uuid_le|boolean|[0:1]={uuid,uuid}
uuid_lt|boolean|[0:1]={uuid,uuid}
uuid_ne|boolean|[0:1]={uuid,uuid}
varbiteq|boolean|[0:1]={"bit varying","bit varying"}
varbitge|boolean|[0:1]={"bit varying","bit varying"}
varbitgt|boolean|[0:1]={"bit varying","bit varying"}
varbitle|boolean|[0:1]={"bit varying","bit varying"}
varbitlt|boolean|[0:1]={"bit varying","bit varying"}
varbitne|boolean|[0:1]={"bit varying","bit varying"}
xideq|boolean|[0:1]={xid,xid}
-- restore normal output mode
\a\t
--
-- CALLED ON NULL INPUT | RETURNS NULL ON NULL INPUT | STRICT
--
CREATE FUNCTION functext_F_1(int) RETURNS bool LANGUAGE 'sql'
AS 'SELECT $1 > 50';
CREATE FUNCTION functext_F_2(int) RETURNS bool LANGUAGE 'sql'
CALLED ON NULL INPUT AS 'SELECT $1 = 50';
CREATE FUNCTION functext_F_3(int) RETURNS bool LANGUAGE 'sql'
RETURNS NULL ON NULL INPUT AS 'SELECT $1 < 50';
CREATE FUNCTION functext_F_4(int) RETURNS bool LANGUAGE 'sql'
STRICT AS 'SELECT $1 = 50';
SELECT proname, proisstrict FROM pg_proc
WHERE oid in ('functext_F_1'::regproc,
'functext_F_2'::regproc,
'functext_F_3'::regproc,
'functext_F_4'::regproc) ORDER BY proname;
proname | proisstrict
--------------+-------------
functext_f_1 | f
functext_f_2 | f
functext_f_3 | t
functext_f_4 | t
(4 rows)
ALTER FUNCTION functext_F_1(int) IMMUTABLE; -- unrelated change, no effect
ALTER FUNCTION functext_F_2(int) STRICT;
ALTER FUNCTION functext_F_3(int) CALLED ON NULL INPUT;
SELECT proname, proisstrict FROM pg_proc
WHERE oid in ('functext_F_1'::regproc,
'functext_F_2'::regproc,
'functext_F_3'::regproc,
'functext_F_4'::regproc) ORDER BY proname;
proname | proisstrict
--------------+-------------
functext_f_1 | f
functext_f_2 | t
functext_f_3 | f
functext_f_4 | t
(4 rows)
-- information_schema tests
CREATE FUNCTION functest_IS_1(a int, b int default 1, c text default 'foo')
RETURNS int
LANGUAGE SQL
AS 'SELECT $1 + $2';
CREATE FUNCTION functest_IS_2(out a int, b int default 1)
RETURNS int
LANGUAGE SQL
AS 'SELECT $1';
CREATE FUNCTION functest_IS_3(a int default 1, out b int)
RETURNS int
LANGUAGE SQL
AS 'SELECT $1';
SELECT routine_name, ordinal_position, parameter_name, parameter_default
FROM information_schema.parameters JOIN information_schema.routines USING (specific_schema, specific_name)
WHERE routine_schema = 'temp_func_test' AND routine_name ~ '^functest_is_'
ORDER BY 1, 2;
routine_name | ordinal_position | parameter_name | parameter_default
---------------+------------------+----------------+-------------------
functest_is_1 | 1 | a |
functest_is_1 | 2 | b | 1
functest_is_1 | 3 | c | 'foo'::text
functest_is_2 | 1 | a |
functest_is_2 | 2 | b | 1
functest_is_3 | 1 | a | 1
functest_is_3 | 2 | b |
(7 rows)
-- Cleanups
DROP SCHEMA temp_func_test CASCADE;
NOTICE: drop cascades to 19 other objects
DETAIL: drop cascades to function functest_a_1(text,date)
drop cascades to function functest_a_2(text[])
drop cascades to function functest_a_3()
drop cascades to function functest_b_1(integer)
drop cascades to function functest_b_2(integer)
drop cascades to function functest_b_3(integer)
drop cascades to function functest_b_4(integer)
drop cascades to function functext_c_1(integer)
drop cascades to function functext_c_2(integer)
drop cascades to function functext_c_3(integer)
drop cascades to function functext_e_1(integer)
drop cascades to function functext_e_2(integer)
drop cascades to function functext_f_1(integer)
drop cascades to function functext_f_2(integer)
drop cascades to function functext_f_3(integer)
drop cascades to function functext_f_4(integer)
drop cascades to function functest_is_1(integer,integer,text)
drop cascades to function functest_is_2(integer)
drop cascades to function functest_is_3(integer)
DROP USER regtest_unpriv_user;
RESET search_path;
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