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author | Maxim Yurchuk <maxim-yurchuk@ydb.tech> | 2024-11-20 17:37:57 +0000 |
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committer | GitHub <noreply@github.com> | 2024-11-20 17:37:57 +0000 |
commit | f76323e9b295c15751e51e3443aa47a36bee8023 (patch) | |
tree | 4113c8cad473a33e0f746966e0cf087252fa1d7a /yql/essentials/tests/postgresql/original/cases/limit.out | |
parent | 753ecb8d410a4cb459c26f3a0082fb2d1724fe63 (diff) | |
parent | a7b9a6afea2a9d7a7bfac4c5eb4c1a8e60adb9e6 (diff) | |
download | ydb-f76323e9b295c15751e51e3443aa47a36bee8023.tar.gz |
Merge pull request #11788 from ydb-platform/mergelibs-241120-1113
Library import 241120-1113
Diffstat (limited to 'yql/essentials/tests/postgresql/original/cases/limit.out')
-rw-r--r-- | yql/essentials/tests/postgresql/original/cases/limit.out | 694 |
1 files changed, 694 insertions, 0 deletions
diff --git a/yql/essentials/tests/postgresql/original/cases/limit.out b/yql/essentials/tests/postgresql/original/cases/limit.out new file mode 100644 index 0000000000..8a98bbea8e --- /dev/null +++ b/yql/essentials/tests/postgresql/original/cases/limit.out @@ -0,0 +1,694 @@ +-- +-- LIMIT +-- Check the LIMIT/OFFSET feature of SELECT +-- +SELECT ''::text AS two, unique1, unique2, stringu1 + FROM onek WHERE unique1 > 50 + ORDER BY unique1 LIMIT 2; + two | unique1 | unique2 | stringu1 +-----+---------+---------+---------- + | 51 | 76 | ZBAAAA + | 52 | 985 | ACAAAA +(2 rows) + +SELECT ''::text AS five, unique1, unique2, stringu1 + FROM onek WHERE unique1 > 60 + ORDER BY unique1 LIMIT 5; + five | unique1 | unique2 | stringu1 +------+---------+---------+---------- + | 61 | 560 | JCAAAA + | 62 | 633 | KCAAAA + | 63 | 296 | LCAAAA + | 64 | 479 | MCAAAA + | 65 | 64 | NCAAAA +(5 rows) + +SELECT ''::text AS two, unique1, unique2, stringu1 + FROM onek WHERE unique1 > 60 AND unique1 < 63 + ORDER BY unique1 LIMIT 5; + two | unique1 | unique2 | stringu1 +-----+---------+---------+---------- + | 61 | 560 | JCAAAA + | 62 | 633 | KCAAAA +(2 rows) + +SELECT ''::text AS three, unique1, unique2, stringu1 + FROM onek WHERE unique1 > 100 + ORDER BY unique1 LIMIT 3 OFFSET 20; + three | unique1 | unique2 | stringu1 +-------+---------+---------+---------- + | 121 | 700 | REAAAA + | 122 | 519 | SEAAAA + | 123 | 777 | TEAAAA +(3 rows) + +SELECT ''::text AS zero, unique1, unique2, stringu1 + FROM onek WHERE unique1 < 50 + ORDER BY unique1 DESC LIMIT 8 OFFSET 99; + zero | unique1 | unique2 | stringu1 +------+---------+---------+---------- +(0 rows) + +SELECT ''::text AS eleven, unique1, unique2, stringu1 + FROM onek WHERE unique1 < 50 + ORDER BY unique1 DESC LIMIT 20 OFFSET 39; + eleven | unique1 | unique2 | stringu1 +--------+---------+---------+---------- + | 10 | 520 | KAAAAA + | 9 | 49 | JAAAAA + | 8 | 653 | IAAAAA + | 7 | 647 | HAAAAA + | 6 | 978 | GAAAAA + | 5 | 541 | FAAAAA + | 4 | 833 | EAAAAA + | 3 | 431 | DAAAAA + | 2 | 326 | CAAAAA + | 1 | 214 | BAAAAA + | 0 | 998 | AAAAAA +(11 rows) + +SELECT ''::text AS ten, unique1, unique2, stringu1 + FROM onek + ORDER BY unique1 OFFSET 990; + ten | unique1 | unique2 | stringu1 +-----+---------+---------+---------- + | 990 | 369 | CMAAAA + | 991 | 426 | DMAAAA + | 992 | 363 | EMAAAA + | 993 | 661 | FMAAAA + | 994 | 695 | GMAAAA + | 995 | 144 | HMAAAA + | 996 | 258 | IMAAAA + | 997 | 21 | JMAAAA + | 998 | 549 | KMAAAA + | 999 | 152 | LMAAAA +(10 rows) + +SELECT ''::text AS five, unique1, unique2, stringu1 + FROM onek + ORDER BY unique1 OFFSET 990 LIMIT 5; + five | unique1 | unique2 | stringu1 +------+---------+---------+---------- + | 990 | 369 | CMAAAA + | 991 | 426 | DMAAAA + | 992 | 363 | EMAAAA + | 993 | 661 | FMAAAA + | 994 | 695 | GMAAAA +(5 rows) + +SELECT ''::text AS five, unique1, unique2, stringu1 + FROM onek + ORDER BY unique1 LIMIT 5 OFFSET 900; + five | unique1 | unique2 | stringu1 +------+---------+---------+---------- + | 900 | 913 | QIAAAA + | 901 | 931 | RIAAAA + | 902 | 702 | SIAAAA + | 903 | 641 | TIAAAA + | 904 | 793 | UIAAAA +(5 rows) + +-- Test null limit and offset. The planner would discard a simple null +-- constant, so to ensure executor is exercised, do this: +select * from int8_tbl limit (case when random() < 0.5 then null::bigint end); + q1 | q2 +------------------+------------------- + 123 | 456 + 123 | 4567890123456789 + 4567890123456789 | 123 + 4567890123456789 | 4567890123456789 + 4567890123456789 | -4567890123456789 +(5 rows) + +select * from int8_tbl offset (case when random() < 0.5 then null::bigint end); + q1 | q2 +------------------+------------------- + 123 | 456 + 123 | 4567890123456789 + 4567890123456789 | 123 + 4567890123456789 | 4567890123456789 + 4567890123456789 | -4567890123456789 +(5 rows) + +-- Test assorted cases involving backwards fetch from a LIMIT plan node +begin; +declare c1 cursor for select * from int8_tbl limit 10; +fetch all in c1; + q1 | q2 +------------------+------------------- + 123 | 456 + 123 | 4567890123456789 + 4567890123456789 | 123 + 4567890123456789 | 4567890123456789 + 4567890123456789 | -4567890123456789 +(5 rows) + +fetch 1 in c1; + q1 | q2 +----+---- +(0 rows) + +fetch backward 1 in c1; + q1 | q2 +------------------+------------------- + 4567890123456789 | -4567890123456789 +(1 row) + +fetch backward all in c1; + q1 | q2 +------------------+------------------ + 4567890123456789 | 4567890123456789 + 4567890123456789 | 123 + 123 | 4567890123456789 + 123 | 456 +(4 rows) + +fetch backward 1 in c1; + q1 | q2 +----+---- +(0 rows) + +fetch all in c1; + q1 | q2 +------------------+------------------- + 123 | 456 + 123 | 4567890123456789 + 4567890123456789 | 123 + 4567890123456789 | 4567890123456789 + 4567890123456789 | -4567890123456789 +(5 rows) + +declare c2 cursor for select * from int8_tbl limit 3; +fetch all in c2; + q1 | q2 +------------------+------------------ + 123 | 456 + 123 | 4567890123456789 + 4567890123456789 | 123 +(3 rows) + +fetch 1 in c2; + q1 | q2 +----+---- +(0 rows) + +fetch backward 1 in c2; + q1 | q2 +------------------+----- + 4567890123456789 | 123 +(1 row) + +fetch backward all in c2; + q1 | q2 +-----+------------------ + 123 | 4567890123456789 + 123 | 456 +(2 rows) + +fetch backward 1 in c2; + q1 | q2 +----+---- +(0 rows) + +fetch all in c2; + q1 | q2 +------------------+------------------ + 123 | 456 + 123 | 4567890123456789 + 4567890123456789 | 123 +(3 rows) + +declare c3 cursor for select * from int8_tbl offset 3; +fetch all in c3; + q1 | q2 +------------------+------------------- + 4567890123456789 | 4567890123456789 + 4567890123456789 | -4567890123456789 +(2 rows) + +fetch 1 in c3; + q1 | q2 +----+---- +(0 rows) + +fetch backward 1 in c3; + q1 | q2 +------------------+------------------- + 4567890123456789 | -4567890123456789 +(1 row) + +fetch backward all in c3; + q1 | q2 +------------------+------------------ + 4567890123456789 | 4567890123456789 +(1 row) + +fetch backward 1 in c3; + q1 | q2 +----+---- +(0 rows) + +fetch all in c3; + q1 | q2 +------------------+------------------- + 4567890123456789 | 4567890123456789 + 4567890123456789 | -4567890123456789 +(2 rows) + +declare c4 cursor for select * from int8_tbl offset 10; +fetch all in c4; + q1 | q2 +----+---- +(0 rows) + +fetch 1 in c4; + q1 | q2 +----+---- +(0 rows) + +fetch backward 1 in c4; + q1 | q2 +----+---- +(0 rows) + +fetch backward all in c4; + q1 | q2 +----+---- +(0 rows) + +fetch backward 1 in c4; + q1 | q2 +----+---- +(0 rows) + +fetch all in c4; + q1 | q2 +----+---- +(0 rows) + +declare c5 cursor for select * from int8_tbl order by q1 fetch first 2 rows with ties; +fetch all in c5; + q1 | q2 +-----+------------------ + 123 | 456 + 123 | 4567890123456789 +(2 rows) + +fetch 1 in c5; + q1 | q2 +----+---- +(0 rows) + +fetch backward 1 in c5; + q1 | q2 +-----+------------------ + 123 | 4567890123456789 +(1 row) + +fetch backward 1 in c5; + q1 | q2 +-----+----- + 123 | 456 +(1 row) + +fetch all in c5; + q1 | q2 +-----+------------------ + 123 | 4567890123456789 +(1 row) + +fetch backward all in c5; + q1 | q2 +-----+------------------ + 123 | 4567890123456789 + 123 | 456 +(2 rows) + +fetch all in c5; + q1 | q2 +-----+------------------ + 123 | 456 + 123 | 4567890123456789 +(2 rows) + +fetch backward all in c5; + q1 | q2 +-----+------------------ + 123 | 4567890123456789 + 123 | 456 +(2 rows) + +rollback; +-- Stress test for variable LIMIT in conjunction with bounded-heap sorting +SELECT + (SELECT n + FROM (VALUES (1)) AS x, + (SELECT n FROM generate_series(1,10) AS n + ORDER BY n LIMIT 1 OFFSET s-1) AS y) AS z + FROM generate_series(1,10) AS s; + z +---- + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 +(10 rows) + +-- +-- Test behavior of volatile and set-returning functions in conjunction +-- with ORDER BY and LIMIT. +-- +create temp sequence testseq; +explain (verbose, costs off) +select unique1, unique2, nextval('testseq') + from tenk1 order by unique2 limit 10; + QUERY PLAN +---------------------------------------------------------------- + Limit + Output: unique1, unique2, (nextval('testseq'::regclass)) + -> Index Scan using tenk1_unique2 on public.tenk1 + Output: unique1, unique2, nextval('testseq'::regclass) +(4 rows) + +select unique1, unique2, nextval('testseq') + from tenk1 order by unique2 limit 10; + unique1 | unique2 | nextval +---------+---------+--------- + 8800 | 0 | 1 + 1891 | 1 | 2 + 3420 | 2 | 3 + 9850 | 3 | 4 + 7164 | 4 | 5 + 8009 | 5 | 6 + 5057 | 6 | 7 + 6701 | 7 | 8 + 4321 | 8 | 9 + 3043 | 9 | 10 +(10 rows) + +select currval('testseq'); + currval +--------- + 10 +(1 row) + +explain (verbose, costs off) +select unique1, unique2, nextval('testseq') + from tenk1 order by tenthous limit 10; + QUERY PLAN +-------------------------------------------------------------------------- + Limit + Output: unique1, unique2, (nextval('testseq'::regclass)), tenthous + -> Result + Output: unique1, unique2, nextval('testseq'::regclass), tenthous + -> Sort + Output: unique1, unique2, tenthous + Sort Key: tenk1.tenthous + -> Seq Scan on public.tenk1 + Output: unique1, unique2, tenthous +(9 rows) + +select unique1, unique2, nextval('testseq') + from tenk1 order by tenthous limit 10; + unique1 | unique2 | nextval +---------+---------+--------- + 0 | 9998 | 11 + 1 | 2838 | 12 + 2 | 2716 | 13 + 3 | 5679 | 14 + 4 | 1621 | 15 + 5 | 5557 | 16 + 6 | 2855 | 17 + 7 | 8518 | 18 + 8 | 5435 | 19 + 9 | 4463 | 20 +(10 rows) + +select currval('testseq'); + currval +--------- + 20 +(1 row) + +explain (verbose, costs off) +select unique1, unique2, generate_series(1,10) + from tenk1 order by unique2 limit 7; + QUERY PLAN +------------------------------------------------------------------------------------------------------------------------------------------------------------- + Limit + Output: unique1, unique2, (generate_series(1, 10)) + -> ProjectSet + Output: unique1, unique2, generate_series(1, 10) + -> Index Scan using tenk1_unique2 on public.tenk1 + Output: unique1, unique2, two, four, ten, twenty, hundred, thousand, twothousand, fivethous, tenthous, odd, even, stringu1, stringu2, string4 +(6 rows) + +select unique1, unique2, generate_series(1,10) + from tenk1 order by unique2 limit 7; + unique1 | unique2 | generate_series +---------+---------+----------------- + 8800 | 0 | 1 + 8800 | 0 | 2 + 8800 | 0 | 3 + 8800 | 0 | 4 + 8800 | 0 | 5 + 8800 | 0 | 6 + 8800 | 0 | 7 +(7 rows) + +explain (verbose, costs off) +select unique1, unique2, generate_series(1,10) + from tenk1 order by tenthous limit 7; + QUERY PLAN +-------------------------------------------------------------------- + Limit + Output: unique1, unique2, (generate_series(1, 10)), tenthous + -> ProjectSet + Output: unique1, unique2, generate_series(1, 10), tenthous + -> Sort + Output: unique1, unique2, tenthous + Sort Key: tenk1.tenthous + -> Seq Scan on public.tenk1 + Output: unique1, unique2, tenthous +(9 rows) + +select unique1, unique2, generate_series(1,10) + from tenk1 order by tenthous limit 7; + unique1 | unique2 | generate_series +---------+---------+----------------- + 0 | 9998 | 1 + 0 | 9998 | 2 + 0 | 9998 | 3 + 0 | 9998 | 4 + 0 | 9998 | 5 + 0 | 9998 | 6 + 0 | 9998 | 7 +(7 rows) + +-- use of random() is to keep planner from folding the expressions together +explain (verbose, costs off) +select generate_series(0,2) as s1, generate_series((random()*.1)::int,2) as s2; + QUERY PLAN +------------------------------------------------------------------------------------------------------ + ProjectSet + Output: generate_series(0, 2), generate_series(((random() * '0.1'::double precision))::integer, 2) + -> Result +(3 rows) + +select generate_series(0,2) as s1, generate_series((random()*.1)::int,2) as s2; + s1 | s2 +----+---- + 0 | 0 + 1 | 1 + 2 | 2 +(3 rows) + +explain (verbose, costs off) +select generate_series(0,2) as s1, generate_series((random()*.1)::int,2) as s2 +order by s2 desc; + QUERY PLAN +------------------------------------------------------------------------------------------------------------ + Sort + Output: (generate_series(0, 2)), (generate_series(((random() * '0.1'::double precision))::integer, 2)) + Sort Key: (generate_series(((random() * '0.1'::double precision))::integer, 2)) DESC + -> ProjectSet + Output: generate_series(0, 2), generate_series(((random() * '0.1'::double precision))::integer, 2) + -> Result +(6 rows) + +select generate_series(0,2) as s1, generate_series((random()*.1)::int,2) as s2 +order by s2 desc; + s1 | s2 +----+---- + 2 | 2 + 1 | 1 + 0 | 0 +(3 rows) + +-- test for failure to set all aggregates' aggtranstype +explain (verbose, costs off) +select sum(tenthous) as s1, sum(tenthous) + random()*0 as s2 + from tenk1 group by thousand order by thousand limit 3; + QUERY PLAN +------------------------------------------------------------------------------------------------------------------- + Limit + Output: (sum(tenthous)), (((sum(tenthous))::double precision + (random() * '0'::double precision))), thousand + -> GroupAggregate + Output: sum(tenthous), ((sum(tenthous))::double precision + (random() * '0'::double precision)), thousand + Group Key: tenk1.thousand + -> Index Only Scan using tenk1_thous_tenthous on public.tenk1 + Output: thousand, tenthous +(7 rows) + +select sum(tenthous) as s1, sum(tenthous) + random()*0 as s2 + from tenk1 group by thousand order by thousand limit 3; + s1 | s2 +-------+------- + 45000 | 45000 + 45010 | 45010 + 45020 | 45020 +(3 rows) + +-- +-- FETCH FIRST +-- Check the WITH TIES clause +-- +SELECT thousand + FROM onek WHERE thousand < 5 + ORDER BY thousand FETCH FIRST 2 ROW WITH TIES; + thousand +---------- + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 +(10 rows) + +SELECT thousand + FROM onek WHERE thousand < 5 + ORDER BY thousand FETCH FIRST ROWS WITH TIES; + thousand +---------- + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 +(10 rows) + +SELECT thousand + FROM onek WHERE thousand < 5 + ORDER BY thousand FETCH FIRST 1 ROW WITH TIES; + thousand +---------- + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 +(10 rows) + +SELECT thousand + FROM onek WHERE thousand < 5 + ORDER BY thousand FETCH FIRST 2 ROW ONLY; + thousand +---------- + 0 + 0 +(2 rows) + +-- SKIP LOCKED and WITH TIES are incompatible +SELECT thousand + FROM onek WHERE thousand < 5 + ORDER BY thousand FETCH FIRST 1 ROW WITH TIES FOR UPDATE SKIP LOCKED; +ERROR: SKIP LOCKED and WITH TIES options cannot be used together +-- should fail +SELECT ''::text AS two, unique1, unique2, stringu1 + FROM onek WHERE unique1 > 50 + FETCH FIRST 2 ROW WITH TIES; +ERROR: WITH TIES cannot be specified without ORDER BY clause +-- test ruleutils +CREATE VIEW limit_thousand_v_1 AS SELECT thousand FROM onek WHERE thousand < 995 + ORDER BY thousand FETCH FIRST 5 ROWS WITH TIES OFFSET 10; +\d+ limit_thousand_v_1 + View "public.limit_thousand_v_1" + Column | Type | Collation | Nullable | Default | Storage | Description +----------+---------+-----------+----------+---------+---------+------------- + thousand | integer | | | | plain | +View definition: + SELECT onek.thousand + FROM onek + WHERE onek.thousand < 995 + ORDER BY onek.thousand + OFFSET 10 + FETCH FIRST 5 ROWS WITH TIES; + +CREATE VIEW limit_thousand_v_2 AS SELECT thousand FROM onek WHERE thousand < 995 + ORDER BY thousand OFFSET 10 FETCH FIRST 5 ROWS ONLY; +\d+ limit_thousand_v_2 + View "public.limit_thousand_v_2" + Column | Type | Collation | Nullable | Default | Storage | Description +----------+---------+-----------+----------+---------+---------+------------- + thousand | integer | | | | plain | +View definition: + SELECT onek.thousand + FROM onek + WHERE onek.thousand < 995 + ORDER BY onek.thousand + OFFSET 10 + LIMIT 5; + +CREATE VIEW limit_thousand_v_3 AS SELECT thousand FROM onek WHERE thousand < 995 + ORDER BY thousand FETCH FIRST NULL ROWS WITH TIES; -- fails +ERROR: row count cannot be null in FETCH FIRST ... WITH TIES clause +CREATE VIEW limit_thousand_v_3 AS SELECT thousand FROM onek WHERE thousand < 995 + ORDER BY thousand FETCH FIRST (NULL+1) ROWS WITH TIES; +\d+ limit_thousand_v_3 + View "public.limit_thousand_v_3" + Column | Type | Collation | Nullable | Default | Storage | Description +----------+---------+-----------+----------+---------+---------+------------- + thousand | integer | | | | plain | +View definition: + SELECT onek.thousand + FROM onek + WHERE onek.thousand < 995 + ORDER BY onek.thousand + FETCH FIRST (NULL::integer + 1) ROWS WITH TIES; + +CREATE VIEW limit_thousand_v_4 AS SELECT thousand FROM onek WHERE thousand < 995 + ORDER BY thousand FETCH FIRST NULL ROWS ONLY; +\d+ limit_thousand_v_4 + View "public.limit_thousand_v_4" + Column | Type | Collation | Nullable | Default | Storage | Description +----------+---------+-----------+----------+---------+---------+------------- + thousand | integer | | | | plain | +View definition: + SELECT onek.thousand + FROM onek + WHERE onek.thousand < 995 + ORDER BY onek.thousand + LIMIT ALL; + +-- leave these views |