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Reduce test variability for toast_tuple_target test

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This commit is contained in:
Simon Riggs 2017-11-20 12:09:40 +11:00
parent c2513365a0
commit 56f3468622
2 changed files with 26 additions and 50 deletions
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50
src/test/regress/expected/strings.out
View File

@ -1167,50 +1167,28 @@ SELECT substr(f1, 99995, 10) from toasttest;
(4 rows) (4 rows)
TRUNCATE TABLE toasttest; TRUNCATE TABLE toasttest;
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
SELECT pg_relation_size('toasttest')/current_setting('block_size')::integer as blocks; -- expect >0 blocks
select 0 = pg_relation_size('pg_toast.pg_toast_'||(select oid from pg_class where relname = 'toasttest'))/current_setting('block_size')::integer as blocks;
blocks blocks
-------- --------
1 f
(1 row)
select pg_relation_size('pg_toast.pg_toast_'||(select oid from pg_class where relname = 'toasttest'))/current_setting('block_size')::integer as blocks;
blocks
--------
3
(1 row)
SELECT pg_total_relation_size('toasttest')/current_setting('block_size')::integer as blocks;
blocks
--------
9
(1 row) (1 row)
TRUNCATE TABLE toasttest; TRUNCATE TABLE toasttest;
ALTER TABLE toasttest set (toast_tuple_target = 4080); ALTER TABLE toasttest set (toast_tuple_target = 4080);
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
SELECT pg_relation_size('toasttest')/current_setting('block_size')::integer as blocks; -- expect 0 blocks
select 0 = pg_relation_size('pg_toast.pg_toast_'||(select oid from pg_class where relname = 'toasttest'))/current_setting('block_size')::integer as blocks;
blocks blocks
-------- --------
2 t
(1 row)
select pg_relation_size('pg_toast.pg_toast_'||(select oid from pg_class where relname = 'toasttest'))/current_setting('block_size')::integer as blocks;
blocks
--------
0
(1 row)
SELECT pg_total_relation_size('toasttest')/current_setting('block_size')::integer as blocks;
blocks
--------
6
(1 row) (1 row)
DROP TABLE toasttest; DROP TABLE toasttest;

26
src/test/regress/sql/strings.sql
View File

@ -367,23 +367,21 @@ SELECT substr(f1, 99995) from toasttest;
SELECT substr(f1, 99995, 10) from toasttest; SELECT substr(f1, 99995, 10) from toasttest;
TRUNCATE TABLE toasttest; TRUNCATE TABLE toasttest;
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
SELECT pg_relation_size('toasttest')/current_setting('block_size')::integer as blocks; -- expect >0 blocks
select pg_relation_size('pg_toast.pg_toast_'||(select oid from pg_class where relname = 'toasttest'))/current_setting('block_size')::integer as blocks; select 0 = pg_relation_size('pg_toast.pg_toast_'||(select oid from pg_class where relname = 'toasttest'))/current_setting('block_size')::integer as blocks;
SELECT pg_total_relation_size('toasttest')/current_setting('block_size')::integer as blocks;
TRUNCATE TABLE toasttest; TRUNCATE TABLE toasttest;
ALTER TABLE toasttest set (toast_tuple_target = 4080); ALTER TABLE toasttest set (toast_tuple_target = 4080);
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
INSERT INTO toasttest values (repeat('1234567890',400)); INSERT INTO toasttest values (repeat('1234567890',300));
SELECT pg_relation_size('toasttest')/current_setting('block_size')::integer as blocks; -- expect 0 blocks
select pg_relation_size('pg_toast.pg_toast_'||(select oid from pg_class where relname = 'toasttest'))/current_setting('block_size')::integer as blocks; select 0 = pg_relation_size('pg_toast.pg_toast_'||(select oid from pg_class where relname = 'toasttest'))/current_setting('block_size')::integer as blocks;
SELECT pg_total_relation_size('toasttest')/current_setting('block_size')::integer as blocks;
DROP TABLE toasttest; DROP TABLE toasttest;