mirror of
https://github.com/postgres/postgres.git
synced 2025-04-20 00:42:27 +03:00
d92b1cdbab
This reverts commit 9f984ba6d23dc6eecebf479ab1d3f2e550a4e9be. It was making the buildfarm unhappy, apparently setting client_min_messages in a regression test produces different output if log_statement='all'. Another issue is that I now suspect the bit sortsupport function was in fact not correct to call byteacmp(). Revert to investigate both of those issues.
92 lines
1.7 KiB
Plaintext
92 lines
1.7 KiB
Plaintext
-- float4 check
|
|
CREATE TABLE float4tmp (a float4);
|
|
\copy float4tmp from 'data/float4.data'
|
|
SET enable_seqscan=on;
|
|
SELECT count(*) FROM float4tmp WHERE a < -179.0;
|
|
count
|
|
-------
|
|
244
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM float4tmp WHERE a <= -179.0;
|
|
count
|
|
-------
|
|
245
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM float4tmp WHERE a = -179.0;
|
|
count
|
|
-------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM float4tmp WHERE a >= -179.0;
|
|
count
|
|
-------
|
|
303
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM float4tmp WHERE a > -179.0;
|
|
count
|
|
-------
|
|
302
|
|
(1 row)
|
|
|
|
SELECT a, a <-> '-179.0' FROM float4tmp ORDER BY a <-> '-179.0' LIMIT 3;
|
|
a | ?column?
|
|
------------+-----------
|
|
-179 | 0
|
|
-189.02386 | 10.023865
|
|
-158.17741 | 20.822586
|
|
(3 rows)
|
|
|
|
CREATE INDEX float4idx ON float4tmp USING gist ( a );
|
|
SET enable_seqscan=off;
|
|
SELECT count(*) FROM float4tmp WHERE a < -179.0::float4;
|
|
count
|
|
-------
|
|
244
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM float4tmp WHERE a <= -179.0::float4;
|
|
count
|
|
-------
|
|
245
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM float4tmp WHERE a = -179.0::float4;
|
|
count
|
|
-------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM float4tmp WHERE a >= -179.0::float4;
|
|
count
|
|
-------
|
|
303
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM float4tmp WHERE a > -179.0::float4;
|
|
count
|
|
-------
|
|
302
|
|
(1 row)
|
|
|
|
EXPLAIN (COSTS OFF)
|
|
SELECT a, a <-> '-179.0' FROM float4tmp ORDER BY a <-> '-179.0' LIMIT 3;
|
|
QUERY PLAN
|
|
----------------------------------------------------
|
|
Limit
|
|
-> Index Only Scan using float4idx on float4tmp
|
|
Order By: (a <-> '-179'::real)
|
|
(3 rows)
|
|
|
|
SELECT a, a <-> '-179.0' FROM float4tmp ORDER BY a <-> '-179.0' LIMIT 3;
|
|
a | ?column?
|
|
------------+-----------
|
|
-179 | 0
|
|
-189.02386 | 10.023865
|
|
-158.17741 | 20.822586
|
|
(3 rows)
|
|
|