git.postgresql.org Git - postgresql.git/commitdiff

diff --git a/contrib/amcheck/expected/check_heap.out b/contrib/amcheck/expected/check_heap.out

index 8f1beb4681cb312063515e20d094681e672eac1f..979e5e84e723dba375485295b752a153e610a119 100644 (file)

--- a/contrib/amcheck/expected/check_heap.out

+++ b/contrib/amcheck/expected/check_heap.out

--

-- Create an alternative tablespace and move the heaptest table to it, causing

-- it to be rewritten and all the blocks to reliably evicted from shared

--- buffers -- guaranteeing actual reads when we next select from it.

+-- buffers -- guaranteeing actual reads when we next select from it in the

+-- same transaction. The heaptest table is smaller than the default

+-- wal_skip_threshold, so a wal_level=minimal commit reads the table into

+-- shared_buffers. A transaction delays that and excludes any autovacuum.

SET allow_in_place_tablespaces = true;

CREATE TABLESPACE regress_test_stats_tblspc LOCATION '';

SELECT sum(reads) AS stats_bulkreads_before

FROM pg_stat_io WHERE context = 'bulkread' \gset

+BEGIN;

ALTER TABLE heaptest SET TABLESPACE regress_test_stats_tblspc;

-- Check that valid options are not rejected nor corruption reported

-- for a non-empty table

-------+--------+--------+-----

(0 rows)

+COMMIT;

-- verify_heapam should have read in the page written out by

-- ALTER TABLE ... SET TABLESPACE ...

-- causing an additional bulkread, which should be reflected in pg_stat_io.

diff --git a/contrib/amcheck/sql/check_heap.sql b/contrib/amcheck/sql/check_heap.sql

index cf5ce4d0c0a56f46d7e21ac06db4e0d5f547f88c..1745bae634e56e68d4fb8e7377aad65a8e3e7d84 100644 (file)

--- a/contrib/amcheck/sql/check_heap.sql

+++ b/contrib/amcheck/sql/check_heap.sql

--

-- Create an alternative tablespace and move the heaptest table to it, causing

-- it to be rewritten and all the blocks to reliably evicted from shared

--- buffers -- guaranteeing actual reads when we next select from it.

+-- buffers -- guaranteeing actual reads when we next select from it in the

+-- same transaction. The heaptest table is smaller than the default

+-- wal_skip_threshold, so a wal_level=minimal commit reads the table into

+-- shared_buffers. A transaction delays that and excludes any autovacuum.

SET allow_in_place_tablespaces = true;

CREATE TABLESPACE regress_test_stats_tblspc LOCATION '';

SELECT sum(reads) AS stats_bulkreads_before

FROM pg_stat_io WHERE context = 'bulkread' \gset

+BEGIN;

ALTER TABLE heaptest SET TABLESPACE regress_test_stats_tblspc;

-

-- Check that valid options are not rejected nor corruption reported

-- for a non-empty table

SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'none');

SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-frozen');

SELECT * FROM verify_heapam(relation := 'heaptest', skip := 'all-visible');

SELECT * FROM verify_heapam(relation := 'heaptest', startblock := 0, endblock := 0);

+COMMIT;

-- verify_heapam should have read in the page written out by

-- ALTER TABLE ... SET TABLESPACE ...