Adding upstream version 15.5.upstream/15.5

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 264 insertions, 0 deletions

diff --git a/src/test/regress/sql/select.sql b/src/test/regress/sql/select.sql
new file mode 100644
index 0000000..019f1e7
--- /dev/null
+++ b/src/test/regress/sql/select.sql
@@ -0,0 +1,264 @@
+--
+-- SELECT
+--
+
+-- btree index
+-- awk '{if($1<10){print;}else{next;}}' onek.data | sort +0n -1
+--
+SELECT * FROM onek
+   WHERE onek.unique1 < 10
+   ORDER BY onek.unique1;
+
+--
+-- awk '{if($1<20){print $1,$14;}else{next;}}' onek.data | sort +0nr -1
+--
+SELECT onek.unique1, onek.stringu1 FROM onek
+   WHERE onek.unique1 < 20
+   ORDER BY unique1 using >;
+
+--
+-- awk '{if($1>980){print $1,$14;}else{next;}}' onek.data | sort +1d -2
+--
+SELECT onek.unique1, onek.stringu1 FROM onek
+   WHERE onek.unique1 > 980
+   ORDER BY stringu1 using <;
+
+--
+-- awk '{if($1>980){print $1,$16;}else{next;}}' onek.data |
+-- sort +1d -2 +0nr -1
+--
+SELECT onek.unique1, onek.string4 FROM onek
+   WHERE onek.unique1 > 980
+   ORDER BY string4 using <, unique1 using >;
+
+--
+-- awk '{if($1>980){print $1,$16;}else{next;}}' onek.data |
+-- sort +1dr -2 +0n -1
+--
+SELECT onek.unique1, onek.string4 FROM onek
+   WHERE onek.unique1 > 980
+   ORDER BY string4 using >, unique1 using <;
+
+--
+-- awk '{if($1<20){print $1,$16;}else{next;}}' onek.data |
+-- sort +0nr -1 +1d -2
+--
+SELECT onek.unique1, onek.string4 FROM onek
+   WHERE onek.unique1 < 20
+   ORDER BY unique1 using >, string4 using <;
+
+--
+-- awk '{if($1<20){print $1,$16;}else{next;}}' onek.data |
+-- sort +0n -1 +1dr -2
+--
+SELECT onek.unique1, onek.string4 FROM onek
+   WHERE onek.unique1 < 20
+   ORDER BY unique1 using <, string4 using >;
+
+--
+-- test partial btree indexes
+--
+-- As of 7.2, planner probably won't pick an indexscan without stats,
+-- so ANALYZE first.  Also, we want to prevent it from picking a bitmapscan
+-- followed by sort, because that could hide index ordering problems.
+--
+ANALYZE onek2;
+
+SET enable_seqscan TO off;
+SET enable_bitmapscan TO off;
+SET enable_sort TO off;
+
+--
+-- awk '{if($1<10){print $0;}else{next;}}' onek.data | sort +0n -1
+--
+SELECT onek2.* FROM onek2 WHERE onek2.unique1 < 10;
+
+--
+-- awk '{if($1<20){print $1,$14;}else{next;}}' onek.data | sort +0nr -1
+--
+SELECT onek2.unique1, onek2.stringu1 FROM onek2
+    WHERE onek2.unique1 < 20
+    ORDER BY unique1 using >;
+
+--
+-- awk '{if($1>980){print $1,$14;}else{next;}}' onek.data | sort +1d -2
+--
+SELECT onek2.unique1, onek2.stringu1 FROM onek2
+   WHERE onek2.unique1 > 980;
+
+RESET enable_seqscan;
+RESET enable_bitmapscan;
+RESET enable_sort;
+
+--
+-- awk '{print $1,$2;}' person.data |
+-- awk '{if(NF!=2){print $3,$2;}else{print;}}' - emp.data |
+-- awk '{if(NF!=2){print $3,$2;}else{print;}}' - student.data |
+-- awk 'BEGIN{FS="      ";}{if(NF!=2){print $4,$5;}else{print;}}' - stud_emp.data
+--
+-- SELECT name, age FROM person*; ??? check if different
+SELECT p.name, p.age FROM person* p;
+
+--
+-- awk '{print $1,$2;}' person.data |
+-- awk '{if(NF!=2){print $3,$2;}else{print;}}' - emp.data |
+-- awk '{if(NF!=2){print $3,$2;}else{print;}}' - student.data |
+-- awk 'BEGIN{FS="      ";}{if(NF!=1){print $4,$5;}else{print;}}' - stud_emp.data |
+-- sort +1nr -2
+--
+SELECT p.name, p.age FROM person* p ORDER BY age using >, name;
+
+--
+-- Test some cases involving whole-row Var referencing a subquery
+--
+select foo from (select 1 offset 0) as foo;
+select foo from (select null offset 0) as foo;
+select foo from (select 'xyzzy',1,null offset 0) as foo;
+
+--
+-- Test VALUES lists
+--
+select * from onek, (values(147, 'RFAAAA'), (931, 'VJAAAA')) as v (i, j)
+    WHERE onek.unique1 = v.i and onek.stringu1 = v.j;
+
+-- a more complex case
+-- looks like we're coding lisp :-)
+select * from onek,
+  (values ((select i from
+    (values(10000), (2), (389), (1000), (2000), ((select 10029))) as foo(i)
+    order by i asc limit 1))) bar (i)
+  where onek.unique1 = bar.i;
+
+-- try VALUES in a subquery
+select * from onek
+    where (unique1,ten) in (values (1,1), (20,0), (99,9), (17,99))
+    order by unique1;
+
+-- VALUES is also legal as a standalone query or a set-operation member
+VALUES (1,2), (3,4+4), (7,77.7);
+
+VALUES (1,2), (3,4+4), (7,77.7)
+UNION ALL
+SELECT 2+2, 57
+UNION ALL
+TABLE int8_tbl;
+
+-- corner case: VALUES with no columns
+CREATE TEMP TABLE nocols();
+INSERT INTO nocols DEFAULT VALUES;
+SELECT * FROM nocols n, LATERAL (VALUES(n.*)) v;
+
+--
+-- Test ORDER BY options
+--
+
+CREATE TEMP TABLE foo (f1 int);
+
+INSERT INTO foo VALUES (42),(3),(10),(7),(null),(null),(1);
+
+SELECT * FROM foo ORDER BY f1;
+SELECT * FROM foo ORDER BY f1 ASC;	-- same thing
+SELECT * FROM foo ORDER BY f1 NULLS FIRST;
+SELECT * FROM foo ORDER BY f1 DESC;
+SELECT * FROM foo ORDER BY f1 DESC NULLS LAST;
+
+-- check if indexscans do the right things
+CREATE INDEX fooi ON foo (f1);
+SET enable_sort = false;
+
+SELECT * FROM foo ORDER BY f1;
+SELECT * FROM foo ORDER BY f1 NULLS FIRST;
+SELECT * FROM foo ORDER BY f1 DESC;
+SELECT * FROM foo ORDER BY f1 DESC NULLS LAST;
+
+DROP INDEX fooi;
+CREATE INDEX fooi ON foo (f1 DESC);
+
+SELECT * FROM foo ORDER BY f1;
+SELECT * FROM foo ORDER BY f1 NULLS FIRST;
+SELECT * FROM foo ORDER BY f1 DESC;
+SELECT * FROM foo ORDER BY f1 DESC NULLS LAST;
+
+DROP INDEX fooi;
+CREATE INDEX fooi ON foo (f1 DESC NULLS LAST);
+
+SELECT * FROM foo ORDER BY f1;
+SELECT * FROM foo ORDER BY f1 NULLS FIRST;
+SELECT * FROM foo ORDER BY f1 DESC;
+SELECT * FROM foo ORDER BY f1 DESC NULLS LAST;
+
+--
+-- Test planning of some cases with partial indexes
+--
+
+-- partial index is usable
+explain (costs off)
+select * from onek2 where unique2 = 11 and stringu1 = 'ATAAAA';
+select * from onek2 where unique2 = 11 and stringu1 = 'ATAAAA';
+-- actually run the query with an analyze to use the partial index
+explain (costs off, analyze on, timing off, summary off)
+select * from onek2 where unique2 = 11 and stringu1 = 'ATAAAA';
+explain (costs off)
+select unique2 from onek2 where unique2 = 11 and stringu1 = 'ATAAAA';
+select unique2 from onek2 where unique2 = 11 and stringu1 = 'ATAAAA';
+-- partial index predicate implies clause, so no need for retest
+explain (costs off)
+select * from onek2 where unique2 = 11 and stringu1 < 'B';
+select * from onek2 where unique2 = 11 and stringu1 < 'B';
+explain (costs off)
+select unique2 from onek2 where unique2 = 11 and stringu1 < 'B';
+select unique2 from onek2 where unique2 = 11 and stringu1 < 'B';
+-- but if it's an update target, must retest anyway
+explain (costs off)
+select unique2 from onek2 where unique2 = 11 and stringu1 < 'B' for update;
+select unique2 from onek2 where unique2 = 11 and stringu1 < 'B' for update;
+-- partial index is not applicable
+explain (costs off)
+select unique2 from onek2 where unique2 = 11 and stringu1 < 'C';
+select unique2 from onek2 where unique2 = 11 and stringu1 < 'C';
+-- partial index implies clause, but bitmap scan must recheck predicate anyway
+SET enable_indexscan TO off;
+explain (costs off)
+select unique2 from onek2 where unique2 = 11 and stringu1 < 'B';
+select unique2 from onek2 where unique2 = 11 and stringu1 < 'B';
+RESET enable_indexscan;
+-- check multi-index cases too
+explain (costs off)
+select unique1, unique2 from onek2
+  where (unique2 = 11 or unique1 = 0) and stringu1 < 'B';
+select unique1, unique2 from onek2
+  where (unique2 = 11 or unique1 = 0) and stringu1 < 'B';
+explain (costs off)
+select unique1, unique2 from onek2
+  where (unique2 = 11 and stringu1 < 'B') or unique1 = 0;
+select unique1, unique2 from onek2
+  where (unique2 = 11 and stringu1 < 'B') or unique1 = 0;
+
+--
+-- Test some corner cases that have been known to confuse the planner
+--
+
+-- ORDER BY on a constant doesn't really need any sorting
+SELECT 1 AS x ORDER BY x;
+
+-- But ORDER BY on a set-valued expression does
+create function sillysrf(int) returns setof int as
+  'values (1),(10),(2),($1)' language sql immutable;
+
+select sillysrf(42);
+select sillysrf(-1) order by 1;
+
+drop function sillysrf(int);
+
+-- X = X isn't a no-op, it's effectively X IS NOT NULL assuming = is strict
+-- (see bug #5084)
+select * from (values (2),(null),(1)) v(k) where k = k order by k;
+select * from (values (2),(null),(1)) v(k) where k = k;
+
+-- Test partitioned tables with no partitions, which should be handled the
+-- same as the non-inheritance case when expanding its RTE.
+create table list_parted_tbl (a int,b int) partition by list (a);
+create table list_parted_tbl1 partition of list_parted_tbl
+  for values in (1) partition by list(b);
+explain (costs off) select * from list_parted_tbl;
+drop table list_parted_tbl;