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Rename index "abc" in aggregates.sql
In order to prevent name collision with table "abc" in namespace.sql. Reported-by: Nathan Bossart Discussion: https://postgr.es/m/20240124173735.GA2708416%40nathanxps13
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src/test/regress/expected/aggregates.out

Lines changed: 28 additions & 28 deletions
Original file line numberDiff line numberDiff line change
@@ -2735,100 +2735,100 @@ CREATE TABLE btg AS SELECT
27352735
'abc' || i % 10 AS z,
27362736
i AS w
27372737
FROM generate_series(1,10000) AS i;
2738-
CREATE INDEX abc ON btg(x,y);
2738+
CREATE INDEX btg_x_y_idx ON btg(x,y);
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ANALYZE btg;
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-- GROUP BY optimization by reorder columns by frequency
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SET enable_hashagg=off;
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SET max_parallel_workers= 0;
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SET max_parallel_workers_per_gather = 0;
27442744
-- Utilize index scan ordering to avoid a Sort operation
27452745
EXPLAIN (COSTS OFF) SELECT count(*) FROM btg GROUP BY x,y;
2746-
QUERY PLAN
2747-
----------------------------------------
2746+
QUERY PLAN
2747+
------------------------------------------------
27482748
GroupAggregate
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Group Key: x, y
2750-
-> Index Only Scan using abc on btg
2750+
-> Index Only Scan using btg_x_y_idx on btg
27512751
(3 rows)
27522752

27532753
EXPLAIN (COSTS OFF) SELECT count(*) FROM btg GROUP BY y,x;
2754-
QUERY PLAN
2755-
----------------------------------------
2754+
QUERY PLAN
2755+
------------------------------------------------
27562756
GroupAggregate
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Group Key: x, y
2758-
-> Index Only Scan using abc on btg
2758+
-> Index Only Scan using btg_x_y_idx on btg
27592759
(3 rows)
27602760

27612761
-- Engage incremental sort
27622762
explain (COSTS OFF) SELECT x,y FROM btg GROUP BY x,y,z,w;
2763-
QUERY PLAN
2764-
-----------------------------------------
2763+
QUERY PLAN
2764+
-------------------------------------------------
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Group
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Group Key: x, y, z, w
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-> Incremental Sort
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Sort Key: x, y, z, w
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Presorted Key: x, y
2770-
-> Index Scan using abc on btg
2770+
-> Index Scan using btg_x_y_idx on btg
27712771
(6 rows)
27722772

27732773
explain (COSTS OFF) SELECT x,y FROM btg GROUP BY z,y,w,x;
2774-
QUERY PLAN
2775-
-----------------------------------------
2774+
QUERY PLAN
2775+
-------------------------------------------------
27762776
Group
27772777
Group Key: x, y, z, w
27782778
-> Incremental Sort
27792779
Sort Key: x, y, z, w
27802780
Presorted Key: x, y
2781-
-> Index Scan using abc on btg
2781+
-> Index Scan using btg_x_y_idx on btg
27822782
(6 rows)
27832783

27842784
explain (COSTS OFF) SELECT x,y FROM btg GROUP BY w,z,x,y;
2785-
QUERY PLAN
2786-
-----------------------------------------
2785+
QUERY PLAN
2786+
-------------------------------------------------
27872787
Group
27882788
Group Key: x, y, w, z
27892789
-> Incremental Sort
27902790
Sort Key: x, y, w, z
27912791
Presorted Key: x, y
2792-
-> Index Scan using abc on btg
2792+
-> Index Scan using btg_x_y_idx on btg
27932793
(6 rows)
27942794

27952795
explain (COSTS OFF) SELECT x,y FROM btg GROUP BY w,x,z,y;
2796-
QUERY PLAN
2797-
-----------------------------------------
2796+
QUERY PLAN
2797+
-------------------------------------------------
27982798
Group
27992799
Group Key: x, y, w, z
28002800
-> Incremental Sort
28012801
Sort Key: x, y, w, z
28022802
Presorted Key: x, y
2803-
-> Index Scan using abc on btg
2803+
-> Index Scan using btg_x_y_idx on btg
28042804
(6 rows)
28052805

28062806
-- Subqueries
28072807
explain (COSTS OFF) SELECT x,y
28082808
FROM (SELECT * FROM btg ORDER BY x,y,w,z) AS q1
28092809
GROUP BY (w,x,z,y);
2810-
QUERY PLAN
2811-
----------------------------------------------
2810+
QUERY PLAN
2811+
-------------------------------------------------
28122812
Group
28132813
Group Key: btg.x, btg.y, btg.w, btg.z
28142814
-> Incremental Sort
28152815
Sort Key: btg.x, btg.y, btg.w, btg.z
28162816
Presorted Key: btg.x, btg.y
2817-
-> Index Scan using abc on btg
2817+
-> Index Scan using btg_x_y_idx on btg
28182818
(6 rows)
28192819

28202820
explain (COSTS OFF) SELECT x,y
28212821
FROM (SELECT * FROM btg ORDER BY x,y,w,z LIMIT 100) AS q1
28222822
GROUP BY (w,x,z,y);
2823-
QUERY PLAN
2824-
----------------------------------------------------
2823+
QUERY PLAN
2824+
-------------------------------------------------------
28252825
Group
28262826
Group Key: btg.x, btg.y, btg.w, btg.z
28272827
-> Limit
28282828
-> Incremental Sort
28292829
Sort Key: btg.x, btg.y, btg.w, btg.z
28302830
Presorted Key: btg.x, btg.y
2831-
-> Index Scan using abc on btg
2831+
-> Index Scan using btg_x_y_idx on btg
28322832
(7 rows)
28332833

28342834
-- Should work with and without GROUP-BY optimization
@@ -2844,16 +2844,16 @@ explain (COSTS OFF) SELECT x,y FROM btg GROUP BY w,x,z,y ORDER BY y,x,z,w;
28442844

28452845
-- Utilize incremental sort to make the ORDER BY rule a bit cheaper
28462846
explain (COSTS OFF) SELECT x,w FROM btg GROUP BY w,x,y,z ORDER BY x*x,z;
2847-
QUERY PLAN
2848-
-----------------------------------------------
2847+
QUERY PLAN
2848+
-------------------------------------------------------
28492849
Sort
28502850
Sort Key: ((x * x)), z
28512851
-> Group
28522852
Group Key: x, y, w, z
28532853
-> Incremental Sort
28542854
Sort Key: x, y, w, z
28552855
Presorted Key: x, y
2856-
-> Index Scan using abc on btg
2856+
-> Index Scan using btg_x_y_idx on btg
28572857
(8 rows)
28582858

28592859
SET enable_incremental_sort = off;

src/test/regress/sql/aggregates.sql

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1188,7 +1188,7 @@ CREATE TABLE btg AS SELECT
11881188
'abc' || i % 10 AS z,
11891189
i AS w
11901190
FROM generate_series(1,10000) AS i;
1191-
CREATE INDEX abc ON btg(x,y);
1191+
CREATE INDEX btg_x_y_idx ON btg(x,y);
11921192
ANALYZE btg;
11931193

11941194
-- GROUP BY optimization by reorder columns by frequency

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