593 lines
21 KiB
PL/PgSQL
593 lines
21 KiB
PL/PgSQL
--
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-- grouping sets
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--
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-- test data sources
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create temp view gstest1(a,b,v)
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as values (1,1,10),(1,1,11),(1,2,12),(1,2,13),(1,3,14),
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(2,3,15),
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(3,3,16),(3,4,17),
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(4,1,18),(4,1,19);
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create temp table gstest2 (a integer, b integer, c integer, d integer,
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e integer, f integer, g integer, h integer);
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copy gstest2 from stdin;
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1 1 1 1 1 1 1 1
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1 1 1 1 1 1 1 2
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1 1 1 1 1 1 2 2
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1 1 1 1 1 2 2 2
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1 1 1 1 2 2 2 2
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1 1 1 2 2 2 2 2
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1 1 2 2 2 2 2 2
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1 2 2 2 2 2 2 2
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2 2 2 2 2 2 2 2
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\.
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create temp table gstest3 (a integer, b integer, c integer, d integer);
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copy gstest3 from stdin;
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1 1 1 1
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2 2 2 2
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\.
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alter table gstest3 add primary key (a);
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create temp table gstest4(id integer, v integer,
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unhashable_col bit(4), unsortable_col xid);
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insert into gstest4
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values (1,1,b'0000','1'), (2,2,b'0001','1'),
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(3,4,b'0010','2'), (4,8,b'0011','2'),
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(5,16,b'0000','2'), (6,32,b'0001','2'),
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(7,64,b'0010','1'), (8,128,b'0011','1');
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create temp table gstest_empty (a integer, b integer, v integer);
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create function gstest_data(v integer, out a integer, out b integer)
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returns setof record
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as $f$
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begin
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return query select v, i from generate_series(1,3) i;
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end;
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$f$ language plpgsql;
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-- basic functionality
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set enable_hashagg = false; -- test hashing explicitly later
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-- simple rollup with multiple plain aggregates, with and without ordering
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-- (and with ordering differing from grouping)
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select a, b, grouping(a,b), sum(v), count(*), max(v)
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from gstest1 group by rollup (a,b);
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select a, b, grouping(a,b), sum(v), count(*), max(v)
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from gstest1 group by rollup (a,b) order by a,b;
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select a, b, grouping(a,b), sum(v), count(*), max(v)
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from gstest1 group by rollup (a,b) order by b desc, a;
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select a, b, grouping(a,b), sum(v), count(*), max(v)
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from gstest1 group by rollup (a,b) order by coalesce(a,0)+coalesce(b,0);
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-- various types of ordered aggs
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select a, b, grouping(a,b),
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array_agg(v order by v),
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string_agg(v::text, ':' order by v desc),
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percentile_disc(0.5) within group (order by v),
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rank(1,2,12) within group (order by a,b,v)
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from gstest1 group by rollup (a,b) order by a,b;
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-- test usage of grouped columns in direct args of aggs
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select grouping(a), a, array_agg(b),
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rank(a) within group (order by b nulls first),
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rank(a) within group (order by b nulls last)
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from (values (1,1),(1,4),(1,5),(3,1),(3,2)) v(a,b)
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group by rollup (a) order by a;
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-- nesting with window functions
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select a, b, sum(c), sum(sum(c)) over (order by a,b) as rsum
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from gstest2 group by rollup (a,b) order by rsum, a, b;
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-- nesting with grouping sets
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select sum(c) from gstest2
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group by grouping sets((), grouping sets((), grouping sets(())))
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order by 1 desc;
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select sum(c) from gstest2
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group by grouping sets((), grouping sets((), grouping sets(((a, b)))))
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order by 1 desc;
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select sum(c) from gstest2
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group by grouping sets(grouping sets(rollup(c), grouping sets(cube(c))))
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order by 1 desc;
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select sum(c) from gstest2
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group by grouping sets(a, grouping sets(a, cube(b)))
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order by 1 desc;
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select sum(c) from gstest2
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group by grouping sets(grouping sets((a, (b))))
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order by 1 desc;
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select sum(c) from gstest2
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group by grouping sets(grouping sets((a, b)))
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order by 1 desc;
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select sum(c) from gstest2
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group by grouping sets(grouping sets(a, grouping sets(a), a))
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order by 1 desc;
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select sum(c) from gstest2
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group by grouping sets(grouping sets(a, grouping sets(a, grouping sets(a), ((a)), a, grouping sets(a), (a)), a))
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order by 1 desc;
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select sum(c) from gstest2
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group by grouping sets((a,(a,b)), grouping sets((a,(a,b)),a))
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order by 1 desc;
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-- empty input: first is 0 rows, second 1, third 3 etc.
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select a, b, sum(v), count(*) from gstest_empty group by grouping sets ((a,b),a);
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select a, b, sum(v), count(*) from gstest_empty group by grouping sets ((a,b),());
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select a, b, sum(v), count(*) from gstest_empty group by grouping sets ((a,b),(),(),());
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select sum(v), count(*) from gstest_empty group by grouping sets ((),(),());
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-- empty input with joins tests some important code paths
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select t1.a, t2.b, sum(t1.v), count(*) from gstest_empty t1, gstest_empty t2
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group by grouping sets ((t1.a,t2.b),());
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-- simple joins, var resolution, GROUPING on join vars
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select t1.a, t2.b, grouping(t1.a, t2.b), sum(t1.v), max(t2.a)
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from gstest1 t1, gstest2 t2
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group by grouping sets ((t1.a, t2.b), ());
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select t1.a, t2.b, grouping(t1.a, t2.b), sum(t1.v), max(t2.a)
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from gstest1 t1 join gstest2 t2 on (t1.a=t2.a)
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group by grouping sets ((t1.a, t2.b), ());
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select a, b, grouping(a, b), sum(t1.v), max(t2.c)
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from gstest1 t1 join gstest2 t2 using (a,b)
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group by grouping sets ((a, b), ());
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-- check that functionally dependent cols are not nulled
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select a, d, grouping(a,b,c)
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from gstest3
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group by grouping sets ((a,b), (a,c));
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-- check that distinct grouping columns are kept separate
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-- even if they are equal()
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explain (costs off)
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select g as alias1, g as alias2
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from generate_series(1,3) g
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group by alias1, rollup(alias2);
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select g as alias1, g as alias2
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from generate_series(1,3) g
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group by alias1, rollup(alias2);
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-- check that pulled-up subquery outputs still go to null when appropriate
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select four, x
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from (select four, ten, 'foo'::text as x from tenk1) as t
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group by grouping sets (four, x)
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having x = 'foo';
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select four, x || 'x'
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from (select four, ten, 'foo'::text as x from tenk1) as t
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group by grouping sets (four, x)
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order by four;
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select (x+y)*1, sum(z)
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from (select 1 as x, 2 as y, 3 as z) s
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group by grouping sets (x+y, x);
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select x, not x as not_x, q2 from
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(select *, q1 = 1 as x from int8_tbl i1) as t
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group by grouping sets(x, q2)
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order by x, q2;
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-- check qual push-down rules for a subquery with grouping sets
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explain (verbose, costs off)
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select * from (
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select 1 as x, q1, sum(q2)
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from int8_tbl i1
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group by grouping sets(1, 2)
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) ss
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where x = 1 and q1 = 123;
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select * from (
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select 1 as x, q1, sum(q2)
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from int8_tbl i1
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group by grouping sets(1, 2)
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) ss
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where x = 1 and q1 = 123;
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-- check handling of pulled-up SubPlan in GROUPING() argument (bug #17479)
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explain (verbose, costs off)
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select grouping(ss.x)
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from int8_tbl i1
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cross join lateral (select (select i1.q1) as x) ss
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group by ss.x;
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select grouping(ss.x)
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from int8_tbl i1
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cross join lateral (select (select i1.q1) as x) ss
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group by ss.x;
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explain (verbose, costs off)
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select (select grouping(ss.x))
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from int8_tbl i1
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cross join lateral (select (select i1.q1) as x) ss
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group by ss.x;
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select (select grouping(ss.x))
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from int8_tbl i1
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cross join lateral (select (select i1.q1) as x) ss
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group by ss.x;
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-- simple rescan tests
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select a, b, sum(v.x)
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from (values (1),(2)) v(x), gstest_data(v.x)
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group by rollup (a,b);
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select *
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from (values (1),(2)) v(x),
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lateral (select a, b, sum(v.x) from gstest_data(v.x) group by rollup (a,b)) s;
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-- min max optimization should still work with GROUP BY ()
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explain (costs off)
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select min(unique1) from tenk1 GROUP BY ();
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-- Views with GROUPING SET queries
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CREATE VIEW gstest_view AS select a, b, grouping(a,b), sum(c), count(*), max(c)
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from gstest2 group by rollup ((a,b,c),(c,d));
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select pg_get_viewdef('gstest_view'::regclass, true);
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-- Nested queries with 3 or more levels of nesting
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select(select (select grouping(a,b) from (values (1)) v2(c)) from (values (1,2)) v1(a,b) group by (a,b)) from (values(6,7)) v3(e,f) GROUP BY ROLLUP(e,f);
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select(select (select grouping(e,f) from (values (1)) v2(c)) from (values (1,2)) v1(a,b) group by (a,b)) from (values(6,7)) v3(e,f) GROUP BY ROLLUP(e,f);
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select(select (select grouping(c) from (values (1)) v2(c) GROUP BY c) from (values (1,2)) v1(a,b) group by (a,b)) from (values(6,7)) v3(e,f) GROUP BY ROLLUP(e,f);
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-- Combinations of operations
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select a, b, c, d from gstest2 group by rollup(a,b),grouping sets(c,d);
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select a, b from (values (1,2),(2,3)) v(a,b) group by a,b, grouping sets(a);
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-- Tests for chained aggregates
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select a, b, grouping(a,b), sum(v), count(*), max(v)
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from gstest1 group by grouping sets ((a,b),(a+1,b+1),(a+2,b+2)) order by 3,6;
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select(select (select grouping(a,b) from (values (1)) v2(c)) from (values (1,2)) v1(a,b) group by (a,b)) from (values(6,7)) v3(e,f) GROUP BY ROLLUP((e+1),(f+1));
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select(select (select grouping(a,b) from (values (1)) v2(c)) from (values (1,2)) v1(a,b) group by (a,b)) from (values(6,7)) v3(e,f) GROUP BY CUBE((e+1),(f+1)) ORDER BY (e+1),(f+1);
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select a, b, sum(c), sum(sum(c)) over (order by a,b) as rsum
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from gstest2 group by cube (a,b) order by rsum, a, b;
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select a, b, sum(c) from (values (1,1,10),(1,1,11),(1,2,12),(1,2,13),(1,3,14),(2,3,15),(3,3,16),(3,4,17),(4,1,18),(4,1,19)) v(a,b,c) group by rollup (a,b);
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select a, b, sum(v.x)
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from (values (1),(2)) v(x), gstest_data(v.x)
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group by cube (a,b) order by a,b;
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-- Test reordering of grouping sets
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explain (costs off)
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select * from gstest1 group by grouping sets((a,b,v),(v)) order by v,b,a;
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-- Agg level check. This query should error out.
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select (select grouping(a,b) from gstest2) from gstest2 group by a,b;
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--Nested queries
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select a, b, sum(c), count(*) from gstest2 group by grouping sets (rollup(a,b),a);
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-- HAVING queries
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select ten, sum(distinct four) from onek a
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group by grouping sets((ten,four),(ten))
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having exists (select 1 from onek b where sum(distinct a.four) = b.four);
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-- Tests around pushdown of HAVING clauses, partially testing against previous bugs
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select a,count(*) from gstest2 group by rollup(a) order by a;
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select a,count(*) from gstest2 group by rollup(a) having a is distinct from 1 order by a;
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explain (costs off)
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select a,count(*) from gstest2 group by rollup(a) having a is distinct from 1 order by a;
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select v.c, (select count(*) from gstest2 group by () having v.c)
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from (values (false),(true)) v(c) order by v.c;
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explain (costs off)
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select v.c, (select count(*) from gstest2 group by () having v.c)
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from (values (false),(true)) v(c) order by v.c;
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-- HAVING with GROUPING queries
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select ten, grouping(ten) from onek
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group by grouping sets(ten) having grouping(ten) >= 0
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order by 2,1;
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select ten, grouping(ten) from onek
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group by grouping sets(ten, four) having grouping(ten) > 0
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order by 2,1;
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select ten, grouping(ten) from onek
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group by rollup(ten) having grouping(ten) > 0
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order by 2,1;
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select ten, grouping(ten) from onek
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group by cube(ten) having grouping(ten) > 0
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order by 2,1;
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select ten, grouping(ten) from onek
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group by (ten) having grouping(ten) >= 0
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order by 2,1;
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-- FILTER queries
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select ten, sum(distinct four) filter (where four::text ~ '123') from onek a
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group by rollup(ten);
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-- More rescan tests
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select * from (values (1),(2)) v(a) left join lateral (select v.a, four, ten, count(*) from onek group by cube(four,ten)) s on true order by v.a,four,ten;
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select array(select row(v.a,s1.*) from (select two,four, count(*) from onek group by cube(two,four) order by two,four) s1) from (values (1),(2)) v(a);
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-- Grouping on text columns
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select sum(ten) from onek group by two, rollup(four::text) order by 1;
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select sum(ten) from onek group by rollup(four::text), two order by 1;
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-- hashing support
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set enable_hashagg = true;
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-- failure cases
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select count(*) from gstest4 group by rollup(unhashable_col,unsortable_col);
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select array_agg(v order by v) from gstest4 group by grouping sets ((id,unsortable_col),(id));
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-- simple cases
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select a, b, grouping(a,b), sum(v), count(*), max(v)
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from gstest1 group by grouping sets ((a),(b)) order by 3,1,2;
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explain (costs off) select a, b, grouping(a,b), sum(v), count(*), max(v)
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from gstest1 group by grouping sets ((a),(b)) order by 3,1,2;
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select a, b, grouping(a,b), sum(v), count(*), max(v)
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from gstest1 group by cube(a,b) order by 3,1,2;
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explain (costs off) select a, b, grouping(a,b), sum(v), count(*), max(v)
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from gstest1 group by cube(a,b) order by 3,1,2;
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-- shouldn't try and hash
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explain (costs off)
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select a, b, grouping(a,b), array_agg(v order by v)
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from gstest1 group by cube(a,b);
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-- unsortable cases
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select unsortable_col, count(*)
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from gstest4 group by grouping sets ((unsortable_col),(unsortable_col))
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order by unsortable_col::text;
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-- mixed hashable/sortable cases
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select unhashable_col, unsortable_col,
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grouping(unhashable_col, unsortable_col),
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count(*), sum(v)
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from gstest4 group by grouping sets ((unhashable_col),(unsortable_col))
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order by 3, 5;
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explain (costs off)
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select unhashable_col, unsortable_col,
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grouping(unhashable_col, unsortable_col),
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count(*), sum(v)
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from gstest4 group by grouping sets ((unhashable_col),(unsortable_col))
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order by 3,5;
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select unhashable_col, unsortable_col,
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grouping(unhashable_col, unsortable_col),
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count(*), sum(v)
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from gstest4 group by grouping sets ((v,unhashable_col),(v,unsortable_col))
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order by 3,5;
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explain (costs off)
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select unhashable_col, unsortable_col,
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grouping(unhashable_col, unsortable_col),
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count(*), sum(v)
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from gstest4 group by grouping sets ((v,unhashable_col),(v,unsortable_col))
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order by 3,5;
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-- empty input: first is 0 rows, second 1, third 3 etc.
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select a, b, sum(v), count(*) from gstest_empty group by grouping sets ((a,b),a);
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explain (costs off)
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select a, b, sum(v), count(*) from gstest_empty group by grouping sets ((a,b),a);
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select a, b, sum(v), count(*) from gstest_empty group by grouping sets ((a,b),());
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select a, b, sum(v), count(*) from gstest_empty group by grouping sets ((a,b),(),(),());
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explain (costs off)
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select a, b, sum(v), count(*) from gstest_empty group by grouping sets ((a,b),(),(),());
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select sum(v), count(*) from gstest_empty group by grouping sets ((),(),());
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explain (costs off)
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select sum(v), count(*) from gstest_empty group by grouping sets ((),(),());
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-- check that functionally dependent cols are not nulled
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select a, d, grouping(a,b,c)
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from gstest3
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group by grouping sets ((a,b), (a,c));
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explain (costs off)
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select a, d, grouping(a,b,c)
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from gstest3
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group by grouping sets ((a,b), (a,c));
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-- simple rescan tests
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select a, b, sum(v.x)
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from (values (1),(2)) v(x), gstest_data(v.x)
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group by grouping sets (a,b)
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order by 1, 2, 3;
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explain (costs off)
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select a, b, sum(v.x)
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from (values (1),(2)) v(x), gstest_data(v.x)
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group by grouping sets (a,b)
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order by 3, 1, 2;
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select *
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from (values (1),(2)) v(x),
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lateral (select a, b, sum(v.x) from gstest_data(v.x) group by grouping sets (a,b)) s;
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explain (costs off)
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select *
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from (values (1),(2)) v(x),
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lateral (select a, b, sum(v.x) from gstest_data(v.x) group by grouping sets (a,b)) s;
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-- Tests for chained aggregates
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select a, b, grouping(a,b), sum(v), count(*), max(v)
|
|
from gstest1 group by grouping sets ((a,b),(a+1,b+1),(a+2,b+2)) order by 3,6;
|
|
explain (costs off)
|
|
select a, b, grouping(a,b), sum(v), count(*), max(v)
|
|
from gstest1 group by grouping sets ((a,b),(a+1,b+1),(a+2,b+2)) order by 3,6;
|
|
select a, b, sum(c), sum(sum(c)) over (order by a,b) as rsum
|
|
from gstest2 group by cube (a,b) order by rsum, a, b;
|
|
explain (costs off)
|
|
select a, b, sum(c), sum(sum(c)) over (order by a,b) as rsum
|
|
from gstest2 group by cube (a,b) order by rsum, a, b;
|
|
select a, b, sum(v.x)
|
|
from (values (1),(2)) v(x), gstest_data(v.x)
|
|
group by cube (a,b) order by a,b;
|
|
explain (costs off)
|
|
select a, b, sum(v.x)
|
|
from (values (1),(2)) v(x), gstest_data(v.x)
|
|
group by cube (a,b) order by a,b;
|
|
|
|
-- Verify that we correctly handle the child node returning a
|
|
-- non-minimal slot, which happens if the input is pre-sorted,
|
|
-- e.g. due to an index scan.
|
|
BEGIN;
|
|
SET LOCAL enable_hashagg = false;
|
|
EXPLAIN (COSTS OFF) SELECT a, b, count(*), max(a), max(b) FROM gstest3 GROUP BY GROUPING SETS(a, b,()) ORDER BY a, b;
|
|
SELECT a, b, count(*), max(a), max(b) FROM gstest3 GROUP BY GROUPING SETS(a, b,()) ORDER BY a, b;
|
|
SET LOCAL enable_seqscan = false;
|
|
EXPLAIN (COSTS OFF) SELECT a, b, count(*), max(a), max(b) FROM gstest3 GROUP BY GROUPING SETS(a, b,()) ORDER BY a, b;
|
|
SELECT a, b, count(*), max(a), max(b) FROM gstest3 GROUP BY GROUPING SETS(a, b,()) ORDER BY a, b;
|
|
COMMIT;
|
|
|
|
-- More rescan tests
|
|
select * from (values (1),(2)) v(a) left join lateral (select v.a, four, ten, count(*) from onek group by cube(four,ten)) s on true order by v.a,four,ten;
|
|
select array(select row(v.a,s1.*) from (select two,four, count(*) from onek group by cube(two,four) order by two,four) s1) from (values (1),(2)) v(a);
|
|
|
|
-- Rescan logic changes when there are no empty grouping sets, so test
|
|
-- that too:
|
|
select * from (values (1),(2)) v(a) left join lateral (select v.a, four, ten, count(*) from onek group by grouping sets(four,ten)) s on true order by v.a,four,ten;
|
|
select array(select row(v.a,s1.*) from (select two,four, count(*) from onek group by grouping sets(two,four) order by two,four) s1) from (values (1),(2)) v(a);
|
|
|
|
-- test the knapsack
|
|
|
|
set enable_indexscan = false;
|
|
set hash_mem_multiplier = 1.0;
|
|
set work_mem = '64kB';
|
|
explain (costs off)
|
|
select unique1,
|
|
count(two), count(four), count(ten),
|
|
count(hundred), count(thousand), count(twothousand),
|
|
count(*)
|
|
from tenk1 group by grouping sets (unique1,twothousand,thousand,hundred,ten,four,two);
|
|
explain (costs off)
|
|
select unique1,
|
|
count(two), count(four), count(ten),
|
|
count(hundred), count(thousand), count(twothousand),
|
|
count(*)
|
|
from tenk1 group by grouping sets (unique1,hundred,ten,four,two);
|
|
|
|
set work_mem = '384kB';
|
|
explain (costs off)
|
|
select unique1,
|
|
count(two), count(four), count(ten),
|
|
count(hundred), count(thousand), count(twothousand),
|
|
count(*)
|
|
from tenk1 group by grouping sets (unique1,twothousand,thousand,hundred,ten,four,two);
|
|
|
|
-- check collation-sensitive matching between grouping expressions
|
|
-- (similar to a check for aggregates, but there are additional code
|
|
-- paths for GROUPING, so check again here)
|
|
|
|
select v||'a', case grouping(v||'a') when 1 then 1 else 0 end, count(*)
|
|
from unnest(array[1,1], array['a','b']) u(i,v)
|
|
group by rollup(i, v||'a') order by 1,3;
|
|
select v||'a', case when grouping(v||'a') = 1 then 1 else 0 end, count(*)
|
|
from unnest(array[1,1], array['a','b']) u(i,v)
|
|
group by rollup(i, v||'a') order by 1,3;
|
|
|
|
-- Bug #16784
|
|
create table bug_16784(i int, j int);
|
|
analyze bug_16784;
|
|
alter table bug_16784 set (autovacuum_enabled = 'false');
|
|
update pg_class set reltuples = 10 where relname='bug_16784';
|
|
|
|
insert into bug_16784 select g/10, g from generate_series(1,40) g;
|
|
|
|
set work_mem='64kB';
|
|
set enable_sort = false;
|
|
|
|
select * from
|
|
(values (1),(2)) v(a),
|
|
lateral (select a, i, j, count(*) from
|
|
bug_16784 group by cube(i,j)) s
|
|
order by v.a, i, j;
|
|
|
|
--
|
|
-- Compare results between plans using sorting and plans using hash
|
|
-- aggregation. Force spilling in both cases by setting work_mem low
|
|
-- and altering the statistics.
|
|
--
|
|
|
|
create table gs_data_1 as
|
|
select g%1000 as g1000, g%100 as g100, g%10 as g10, g
|
|
from generate_series(0,1999) g;
|
|
|
|
analyze gs_data_1;
|
|
alter table gs_data_1 set (autovacuum_enabled = 'false');
|
|
update pg_class set reltuples = 10 where relname='gs_data_1';
|
|
|
|
set work_mem='64kB';
|
|
|
|
-- Produce results with sorting.
|
|
|
|
set enable_sort = true;
|
|
set enable_hashagg = false;
|
|
set jit_above_cost = 0;
|
|
|
|
explain (costs off)
|
|
select g100, g10, sum(g::numeric), count(*), max(g::text)
|
|
from gs_data_1 group by cube (g1000, g100,g10);
|
|
|
|
create table gs_group_1 as
|
|
select g100, g10, sum(g::numeric), count(*), max(g::text)
|
|
from gs_data_1 group by cube (g1000, g100,g10);
|
|
|
|
-- Produce results with hash aggregation.
|
|
|
|
set enable_hashagg = true;
|
|
set enable_sort = false;
|
|
|
|
explain (costs off)
|
|
select g100, g10, sum(g::numeric), count(*), max(g::text)
|
|
from gs_data_1 group by cube (g1000, g100,g10);
|
|
|
|
create table gs_hash_1 as
|
|
select g100, g10, sum(g::numeric), count(*), max(g::text)
|
|
from gs_data_1 group by cube (g1000, g100,g10);
|
|
|
|
set enable_sort = true;
|
|
set work_mem to default;
|
|
set hash_mem_multiplier to default;
|
|
|
|
-- Compare results
|
|
|
|
(select * from gs_hash_1 except select * from gs_group_1)
|
|
union all
|
|
(select * from gs_group_1 except select * from gs_hash_1);
|
|
|
|
drop table gs_group_1;
|
|
drop table gs_hash_1;
|
|
|
|
-- GROUP BY DISTINCT
|
|
|
|
-- "normal" behavior...
|
|
select a, b, c
|
|
from (values (1, 2, 3), (4, null, 6), (7, 8, 9)) as t (a, b, c)
|
|
group by all rollup(a, b), rollup(a, c)
|
|
order by a, b, c;
|
|
|
|
-- ...which is also the default
|
|
select a, b, c
|
|
from (values (1, 2, 3), (4, null, 6), (7, 8, 9)) as t (a, b, c)
|
|
group by rollup(a, b), rollup(a, c)
|
|
order by a, b, c;
|
|
|
|
-- "group by distinct" behavior...
|
|
select a, b, c
|
|
from (values (1, 2, 3), (4, null, 6), (7, 8, 9)) as t (a, b, c)
|
|
group by distinct rollup(a, b), rollup(a, c)
|
|
order by a, b, c;
|
|
|
|
-- ...which is not the same as "select distinct"
|
|
select distinct a, b, c
|
|
from (values (1, 2, 3), (4, null, 6), (7, 8, 9)) as t (a, b, c)
|
|
group by rollup(a, b), rollup(a, c)
|
|
order by a, b, c;
|
|
|
|
-- test handling of outer GroupingFunc within subqueries
|
|
explain (costs off)
|
|
select (select grouping(v1)) from (values ((select 1))) v(v1) group by cube(v1);
|
|
select (select grouping(v1)) from (values ((select 1))) v(v1) group by cube(v1);
|
|
|
|
explain (costs off)
|
|
select (select grouping(v1)) from (values ((select 1))) v(v1) group by v1;
|
|
select (select grouping(v1)) from (values ((select 1))) v(v1) group by v1;
|
|
|
|
-- end
|