1997-04-27 19:40:13 +02:00
|
|
|
--
|
|
|
|
-- AGGREGATES
|
|
|
|
--
|
2000-01-05 18:32:29 +01:00
|
|
|
|
1997-04-27 19:40:13 +02:00
|
|
|
SELECT avg(four) AS avg_1 FROM onek;
|
|
|
|
|
1997-04-29 16:29:16 +02:00
|
|
|
SELECT avg(a) AS avg_32 FROM aggtest WHERE a < 100;
|
1997-04-27 19:40:13 +02:00
|
|
|
|
2000-07-17 05:05:41 +02:00
|
|
|
-- In 7.1, avg(float4) is computed using float8 arithmetic.
|
|
|
|
-- Round the result to 3 digits to avoid platform-specific results.
|
|
|
|
|
|
|
|
SELECT avg(b)::numeric(10,3) AS avg_107_943 FROM aggtest;
|
1997-04-27 19:40:13 +02:00
|
|
|
|
2000-06-10 07:19:26 +02:00
|
|
|
SELECT avg(gpa) AS avg_3_4 FROM ONLY student;
|
1997-04-27 19:40:13 +02:00
|
|
|
|
|
|
|
|
|
|
|
SELECT sum(four) AS sum_1500 FROM onek;
|
|
|
|
SELECT sum(a) AS sum_198 FROM aggtest;
|
|
|
|
SELECT sum(b) AS avg_431_773 FROM aggtest;
|
2000-06-10 07:19:26 +02:00
|
|
|
SELECT sum(gpa) AS avg_6_8 FROM ONLY student;
|
1997-04-27 19:40:13 +02:00
|
|
|
|
|
|
|
SELECT max(four) AS max_3 FROM onek;
|
|
|
|
SELECT max(a) AS max_100 FROM aggtest;
|
|
|
|
SELECT max(aggtest.b) AS max_324_78 FROM aggtest;
|
|
|
|
SELECT max(student.gpa) AS max_3_7 FROM student;
|
|
|
|
|
2006-03-10 21:15:28 +01:00
|
|
|
SELECT stddev_pop(b) FROM aggtest;
|
|
|
|
SELECT stddev_samp(b) FROM aggtest;
|
|
|
|
SELECT var_pop(b) FROM aggtest;
|
|
|
|
SELECT var_samp(b) FROM aggtest;
|
1997-04-27 19:40:13 +02:00
|
|
|
|
2006-03-10 21:15:28 +01:00
|
|
|
SELECT stddev_pop(b::numeric) FROM aggtest;
|
|
|
|
SELECT stddev_samp(b::numeric) FROM aggtest;
|
|
|
|
SELECT var_pop(b::numeric) FROM aggtest;
|
|
|
|
SELECT var_samp(b::numeric) FROM aggtest;
|
|
|
|
|
|
|
|
-- population variance is defined for a single tuple, sample variance
|
|
|
|
-- is not
|
|
|
|
SELECT var_pop(1.0), var_samp(2.0);
|
|
|
|
SELECT stddev_pop(3.0::numeric), stddev_samp(4.0::numeric);
|
1997-04-27 19:40:13 +02:00
|
|
|
|
2006-07-28 20:33:04 +02:00
|
|
|
-- SQL2003 binary aggregates
|
|
|
|
SELECT regr_count(b, a) FROM aggtest;
|
|
|
|
SELECT regr_sxx(b, a) FROM aggtest;
|
|
|
|
SELECT regr_syy(b, a) FROM aggtest;
|
|
|
|
SELECT regr_sxy(b, a) FROM aggtest;
|
|
|
|
SELECT regr_avgx(b, a), regr_avgy(b, a) FROM aggtest;
|
|
|
|
SELECT regr_r2(b, a) FROM aggtest;
|
|
|
|
SELECT regr_slope(b, a), regr_intercept(b, a) FROM aggtest;
|
|
|
|
SELECT covar_pop(b, a), covar_samp(b, a) FROM aggtest;
|
|
|
|
SELECT corr(b, a) FROM aggtest;
|
|
|
|
|
2006-03-10 21:15:28 +01:00
|
|
|
SELECT count(four) AS cnt_1000 FROM onek;
|
1999-12-13 02:27:21 +01:00
|
|
|
SELECT count(DISTINCT four) AS cnt_4 FROM onek;
|
|
|
|
|
2002-11-21 01:42:20 +01:00
|
|
|
select ten, count(*), sum(four) from onek
|
|
|
|
group by ten order by ten;
|
1999-12-13 02:27:21 +01:00
|
|
|
|
2002-11-21 01:42:20 +01:00
|
|
|
select ten, count(four), sum(DISTINCT four) from onek
|
|
|
|
group by ten order by ten;
|
1999-12-13 02:27:21 +01:00
|
|
|
|
2006-07-27 21:52:07 +02:00
|
|
|
-- user-defined aggregates
|
1997-04-27 19:40:13 +02:00
|
|
|
SELECT newavg(four) AS avg_1 FROM onek;
|
|
|
|
SELECT newsum(four) AS sum_1500 FROM onek;
|
|
|
|
SELECT newcnt(four) AS cnt_1000 FROM onek;
|
2006-07-27 21:52:07 +02:00
|
|
|
SELECT newcnt(*) AS cnt_1000 FROM onek;
|
|
|
|
SELECT oldcnt(*) AS cnt_1000 FROM onek;
|
|
|
|
SELECT sum2(q1,q2) FROM int8_tbl;
|
2003-06-06 17:04:03 +02:00
|
|
|
|
|
|
|
-- test for outer-level aggregates
|
|
|
|
|
|
|
|
-- this should work
|
|
|
|
select ten, sum(distinct four) from onek a
|
|
|
|
group by ten
|
|
|
|
having exists (select 1 from onek b where sum(distinct a.four) = b.four);
|
|
|
|
|
|
|
|
-- this should fail because subquery has an agg of its own in WHERE
|
|
|
|
select ten, sum(distinct four) from onek a
|
|
|
|
group by ten
|
|
|
|
having exists (select 1 from onek b
|
|
|
|
where sum(distinct a.four + b.four) = b.four);
|
2004-05-26 17:26:28 +02:00
|
|
|
|
2009-04-25 18:44:56 +02:00
|
|
|
-- Test handling of sublinks within outer-level aggregates.
|
|
|
|
-- Per bug report from Daniel Grace.
|
|
|
|
select
|
|
|
|
(select max((select i.unique2 from tenk1 i where i.unique1 = o.unique1)))
|
|
|
|
from tenk1 o;
|
|
|
|
|
2004-05-26 17:26:28 +02:00
|
|
|
--
|
|
|
|
-- test for bitwise integer aggregates
|
|
|
|
--
|
|
|
|
CREATE TEMPORARY TABLE bitwise_test(
|
|
|
|
i2 INT2,
|
|
|
|
i4 INT4,
|
|
|
|
i8 INT8,
|
|
|
|
i INTEGER,
|
|
|
|
x INT2,
|
|
|
|
y BIT(4)
|
|
|
|
);
|
|
|
|
|
|
|
|
-- empty case
|
|
|
|
SELECT
|
|
|
|
BIT_AND(i2) AS "?",
|
|
|
|
BIT_OR(i4) AS "?"
|
|
|
|
FROM bitwise_test;
|
|
|
|
|
|
|
|
COPY bitwise_test FROM STDIN NULL 'null';
|
|
|
|
1 1 1 1 1 B0101
|
|
|
|
3 3 3 null 2 B0100
|
|
|
|
7 7 7 3 4 B1100
|
|
|
|
\.
|
|
|
|
|
|
|
|
SELECT
|
|
|
|
BIT_AND(i2) AS "1",
|
|
|
|
BIT_AND(i4) AS "1",
|
|
|
|
BIT_AND(i8) AS "1",
|
|
|
|
BIT_AND(i) AS "?",
|
|
|
|
BIT_AND(x) AS "0",
|
|
|
|
BIT_AND(y) AS "0100",
|
|
|
|
|
|
|
|
BIT_OR(i2) AS "7",
|
|
|
|
BIT_OR(i4) AS "7",
|
|
|
|
BIT_OR(i8) AS "7",
|
|
|
|
BIT_OR(i) AS "?",
|
|
|
|
BIT_OR(x) AS "7",
|
|
|
|
BIT_OR(y) AS "1101"
|
|
|
|
FROM bitwise_test;
|
|
|
|
|
|
|
|
--
|
|
|
|
-- test boolean aggregates
|
|
|
|
--
|
|
|
|
-- first test all possible transition and final states
|
|
|
|
|
|
|
|
SELECT
|
|
|
|
-- boolean and transitions
|
|
|
|
-- null because strict
|
|
|
|
booland_statefunc(NULL, NULL) IS NULL AS "t",
|
|
|
|
booland_statefunc(TRUE, NULL) IS NULL AS "t",
|
|
|
|
booland_statefunc(FALSE, NULL) IS NULL AS "t",
|
|
|
|
booland_statefunc(NULL, TRUE) IS NULL AS "t",
|
|
|
|
booland_statefunc(NULL, FALSE) IS NULL AS "t",
|
|
|
|
-- and actual computations
|
|
|
|
booland_statefunc(TRUE, TRUE) AS "t",
|
|
|
|
NOT booland_statefunc(TRUE, FALSE) AS "t",
|
|
|
|
NOT booland_statefunc(FALSE, TRUE) AS "t",
|
|
|
|
NOT booland_statefunc(FALSE, FALSE) AS "t";
|
|
|
|
|
|
|
|
SELECT
|
|
|
|
-- boolean or transitions
|
|
|
|
-- null because strict
|
|
|
|
boolor_statefunc(NULL, NULL) IS NULL AS "t",
|
|
|
|
boolor_statefunc(TRUE, NULL) IS NULL AS "t",
|
|
|
|
boolor_statefunc(FALSE, NULL) IS NULL AS "t",
|
|
|
|
boolor_statefunc(NULL, TRUE) IS NULL AS "t",
|
|
|
|
boolor_statefunc(NULL, FALSE) IS NULL AS "t",
|
|
|
|
-- actual computations
|
|
|
|
boolor_statefunc(TRUE, TRUE) AS "t",
|
|
|
|
boolor_statefunc(TRUE, FALSE) AS "t",
|
|
|
|
boolor_statefunc(FALSE, TRUE) AS "t",
|
|
|
|
NOT boolor_statefunc(FALSE, FALSE) AS "t";
|
|
|
|
|
|
|
|
CREATE TEMPORARY TABLE bool_test(
|
|
|
|
b1 BOOL,
|
|
|
|
b2 BOOL,
|
|
|
|
b3 BOOL,
|
|
|
|
b4 BOOL);
|
|
|
|
|
|
|
|
-- empty case
|
|
|
|
SELECT
|
|
|
|
BOOL_AND(b1) AS "n",
|
|
|
|
BOOL_OR(b3) AS "n"
|
|
|
|
FROM bool_test;
|
|
|
|
|
|
|
|
COPY bool_test FROM STDIN NULL 'null';
|
|
|
|
TRUE null FALSE null
|
|
|
|
FALSE TRUE null null
|
|
|
|
null TRUE FALSE null
|
|
|
|
\.
|
|
|
|
|
|
|
|
SELECT
|
|
|
|
BOOL_AND(b1) AS "f",
|
|
|
|
BOOL_AND(b2) AS "t",
|
|
|
|
BOOL_AND(b3) AS "f",
|
|
|
|
BOOL_AND(b4) AS "n",
|
|
|
|
BOOL_AND(NOT b2) AS "f",
|
|
|
|
BOOL_AND(NOT b3) AS "t"
|
|
|
|
FROM bool_test;
|
|
|
|
|
|
|
|
SELECT
|
|
|
|
EVERY(b1) AS "f",
|
|
|
|
EVERY(b2) AS "t",
|
|
|
|
EVERY(b3) AS "f",
|
|
|
|
EVERY(b4) AS "n",
|
|
|
|
EVERY(NOT b2) AS "f",
|
|
|
|
EVERY(NOT b3) AS "t"
|
|
|
|
FROM bool_test;
|
|
|
|
|
|
|
|
SELECT
|
|
|
|
BOOL_OR(b1) AS "t",
|
|
|
|
BOOL_OR(b2) AS "t",
|
|
|
|
BOOL_OR(b3) AS "f",
|
|
|
|
BOOL_OR(b4) AS "n",
|
|
|
|
BOOL_OR(NOT b2) AS "f",
|
|
|
|
BOOL_OR(NOT b3) AS "t"
|
|
|
|
FROM bool_test;
|
2005-04-12 01:06:57 +02:00
|
|
|
|
|
|
|
--
|
|
|
|
-- Test several cases that should be optimized into indexscans instead of
|
|
|
|
-- the generic aggregate implementation. We can't actually verify that they
|
|
|
|
-- are done as indexscans, but we can check that the results are correct.
|
|
|
|
--
|
|
|
|
|
|
|
|
-- Basic cases
|
|
|
|
select max(unique1) from tenk1;
|
|
|
|
select max(unique1) from tenk1 where unique1 < 42;
|
|
|
|
select max(unique1) from tenk1 where unique1 > 42;
|
|
|
|
select max(unique1) from tenk1 where unique1 > 42000;
|
|
|
|
|
|
|
|
-- multi-column index (uses tenk1_thous_tenthous)
|
|
|
|
select max(tenthous) from tenk1 where thousand = 33;
|
|
|
|
select min(tenthous) from tenk1 where thousand = 33;
|
|
|
|
|
|
|
|
-- check parameter propagation into an indexscan subquery
|
|
|
|
select f1, (select min(unique1) from tenk1 where unique1 > f1) AS gt
|
|
|
|
from int4_tbl;
|
2008-03-31 18:59:26 +02:00
|
|
|
|
|
|
|
-- check some cases that were handled incorrectly in 8.3.0
|
|
|
|
select distinct max(unique2) from tenk1;
|
|
|
|
select max(unique2) from tenk1 order by 1;
|
|
|
|
select max(unique2) from tenk1 order by max(unique2);
|
|
|
|
select max(unique2) from tenk1 order by max(unique2)+1;
|
|
|
|
select max(unique2), generate_series(1,3) as g from tenk1 order by g desc;
|
2009-12-15 18:57:48 +01:00
|
|
|
|
|
|
|
--
|
|
|
|
-- Test combinations of DISTINCT and/or ORDER BY
|
|
|
|
--
|
|
|
|
|
|
|
|
select array_agg(a order by b)
|
|
|
|
from (values (1,4),(2,3),(3,1),(4,2)) v(a,b);
|
|
|
|
select array_agg(a order by a)
|
|
|
|
from (values (1,4),(2,3),(3,1),(4,2)) v(a,b);
|
|
|
|
select array_agg(a order by a desc)
|
|
|
|
from (values (1,4),(2,3),(3,1),(4,2)) v(a,b);
|
|
|
|
select array_agg(b order by a desc)
|
|
|
|
from (values (1,4),(2,3),(3,1),(4,2)) v(a,b);
|
|
|
|
|
|
|
|
select array_agg(distinct a)
|
|
|
|
from (values (1),(2),(1),(3),(null),(2)) v(a);
|
|
|
|
select array_agg(distinct a order by a)
|
|
|
|
from (values (1),(2),(1),(3),(null),(2)) v(a);
|
|
|
|
select array_agg(distinct a order by a desc)
|
|
|
|
from (values (1),(2),(1),(3),(null),(2)) v(a);
|
|
|
|
select array_agg(distinct a order by a desc nulls last)
|
|
|
|
from (values (1),(2),(1),(3),(null),(2)) v(a);
|
|
|
|
|
|
|
|
-- multi-arg aggs, strict/nonstrict, distinct/order by
|
|
|
|
|
|
|
|
select aggfstr(a,b,c)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c);
|
|
|
|
select aggfns(a,b,c)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c);
|
|
|
|
|
|
|
|
select aggfstr(distinct a,b,c)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c),
|
|
|
|
generate_series(1,3) i;
|
|
|
|
select aggfns(distinct a,b,c)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c),
|
|
|
|
generate_series(1,3) i;
|
|
|
|
|
|
|
|
select aggfstr(distinct a,b,c order by b)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c),
|
|
|
|
generate_series(1,3) i;
|
|
|
|
select aggfns(distinct a,b,c order by b)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c),
|
|
|
|
generate_series(1,3) i;
|
|
|
|
|
|
|
|
-- test specific code paths
|
|
|
|
|
|
|
|
select aggfns(distinct a,a,c order by c using ~<~,a)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c),
|
|
|
|
generate_series(1,2) i;
|
|
|
|
select aggfns(distinct a,a,c order by c using ~<~)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c),
|
|
|
|
generate_series(1,2) i;
|
|
|
|
select aggfns(distinct a,a,c order by a)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c),
|
|
|
|
generate_series(1,2) i;
|
|
|
|
select aggfns(distinct a,b,c order by a,c using ~<~,b)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c),
|
|
|
|
generate_series(1,2) i;
|
|
|
|
|
|
|
|
-- check node I/O via view creation and usage, also deparsing logic
|
|
|
|
|
|
|
|
create view agg_view1 as
|
|
|
|
select aggfns(a,b,c)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c);
|
|
|
|
|
|
|
|
select * from agg_view1;
|
|
|
|
select pg_get_viewdef('agg_view1'::regclass);
|
|
|
|
|
|
|
|
create or replace view agg_view1 as
|
|
|
|
select aggfns(distinct a,b,c)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c),
|
|
|
|
generate_series(1,3) i;
|
|
|
|
|
|
|
|
select * from agg_view1;
|
|
|
|
select pg_get_viewdef('agg_view1'::regclass);
|
|
|
|
|
|
|
|
create or replace view agg_view1 as
|
|
|
|
select aggfns(distinct a,b,c order by b)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c),
|
|
|
|
generate_series(1,3) i;
|
|
|
|
|
|
|
|
select * from agg_view1;
|
|
|
|
select pg_get_viewdef('agg_view1'::regclass);
|
|
|
|
|
|
|
|
create or replace view agg_view1 as
|
|
|
|
select aggfns(a,b,c order by b+1)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c);
|
|
|
|
|
|
|
|
select * from agg_view1;
|
|
|
|
select pg_get_viewdef('agg_view1'::regclass);
|
|
|
|
|
|
|
|
create or replace view agg_view1 as
|
|
|
|
select aggfns(a,a,c order by b)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c);
|
|
|
|
|
|
|
|
select * from agg_view1;
|
|
|
|
select pg_get_viewdef('agg_view1'::regclass);
|
|
|
|
|
|
|
|
create or replace view agg_view1 as
|
|
|
|
select aggfns(a,b,c order by c using ~<~)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c);
|
|
|
|
|
|
|
|
select * from agg_view1;
|
|
|
|
select pg_get_viewdef('agg_view1'::regclass);
|
|
|
|
|
|
|
|
create or replace view agg_view1 as
|
|
|
|
select aggfns(distinct a,b,c order by a,c using ~<~,b)
|
|
|
|
from (values (1,3,'foo'),(0,null,null),(2,2,'bar'),(3,1,'baz')) v(a,b,c),
|
|
|
|
generate_series(1,2) i;
|
|
|
|
|
|
|
|
select * from agg_view1;
|
|
|
|
select pg_get_viewdef('agg_view1'::regclass);
|
|
|
|
|
|
|
|
drop view agg_view1;
|
|
|
|
|
|
|
|
-- incorrect DISTINCT usage errors
|
|
|
|
|
|
|
|
select aggfns(distinct a,b,c order by i)
|
|
|
|
from (values (1,1,'foo')) v(a,b,c), generate_series(1,2) i;
|
|
|
|
select aggfns(distinct a,b,c order by a,b+1)
|
|
|
|
from (values (1,1,'foo')) v(a,b,c), generate_series(1,2) i;
|
|
|
|
select aggfns(distinct a,b,c order by a,b,i,c)
|
|
|
|
from (values (1,1,'foo')) v(a,b,c), generate_series(1,2) i;
|
|
|
|
select aggfns(distinct a,a,c order by a,b)
|
|
|
|
from (values (1,1,'foo')) v(a,b,c), generate_series(1,2) i;
|
2010-02-01 04:14:45 +01:00
|
|
|
|
|
|
|
-- string_agg tests
|
|
|
|
select string_agg(a,',') from (values('aaaa'),('bbbb'),('cccc')) g(a);
|
|
|
|
select string_agg(a,',') from (values('aaaa'),(null),('bbbb'),('cccc')) g(a);
|
2010-08-05 20:21:19 +02:00
|
|
|
select string_agg(a,'AB') from (values(null),(null),('bbbb'),('cccc')) g(a);
|
2010-02-01 04:14:45 +01:00
|
|
|
select string_agg(a,',') from (values(null),(null)) g(a);
|
2010-07-18 21:37:49 +02:00
|
|
|
|
|
|
|
-- check some implicit casting cases, as per bug #5564
|
2010-08-05 20:21:19 +02:00
|
|
|
select string_agg(distinct f1, ',' order by f1) from varchar_tbl; -- ok
|
|
|
|
select string_agg(distinct f1::text, ',' order by f1) from varchar_tbl; -- not ok
|
|
|
|
select string_agg(distinct f1, ',' order by f1::text) from varchar_tbl; -- not ok
|
|
|
|
select string_agg(distinct f1::text, ',' order by f1::text) from varchar_tbl; -- ok
|