CREATE EXTENSION test_slru;
SELECT test_slru_page_exists(12345);
 test_slru_page_exists 
-----------------------
 f
(1 row)

SELECT test_slru_page_write(12345, 'Test SLRU');
 test_slru_page_write 
----------------------
 
(1 row)

SELECT test_slru_page_read(12345);
 test_slru_page_read 
---------------------
 Test SLRU
(1 row)

SELECT test_slru_page_exists(12345);
 test_slru_page_exists 
-----------------------
 t
(1 row)

-- 48 extra pages
SELECT count(test_slru_page_write(a, 'Test SLRU'))
  FROM generate_series(12346, 12393, 1) as a;
 count 
-------
    48
(1 row)

-- Reading page in buffer for read and write
SELECT test_slru_page_read(12377, true);
 test_slru_page_read 
---------------------
 Test SLRU
(1 row)

-- Reading page in buffer for read-only
SELECT test_slru_page_readonly(12377);
 test_slru_page_readonly 
-------------------------
 Test SLRU
(1 row)

-- Reading page not in buffer with read-only
SELECT test_slru_page_readonly(12346);
 test_slru_page_readonly 
-------------------------
 Test SLRU
(1 row)

-- Write all the pages in buffers
SELECT test_slru_page_writeall();
 test_slru_page_writeall 
-------------------------
 
(1 row)

-- Flush the last page written out.
SELECT test_slru_page_sync(12393);
NOTICE:  Called SlruSyncFileTag() for segment 387 on path pg_test_slru/000000000000183
 test_slru_page_sync 
---------------------
 
(1 row)

SELECT test_slru_page_exists(12393);
 test_slru_page_exists 
-----------------------
 t
(1 row)

-- Segment deletion
SELECT test_slru_page_delete(12393);
NOTICE:  Called SlruDeleteSegment() for segment 387
 test_slru_page_delete 
-----------------------
 
(1 row)

SELECT test_slru_page_exists(12393);
 test_slru_page_exists 
-----------------------
 f
(1 row)

-- Page truncation
SELECT test_slru_page_exists(12377);
 test_slru_page_exists 
-----------------------
 t
(1 row)

SELECT test_slru_page_truncate(12377);
 test_slru_page_truncate 
-------------------------
 
(1 row)

SELECT test_slru_page_exists(12377);
 test_slru_page_exists 
-----------------------
 t
(1 row)

-- Full deletion
SELECT test_slru_delete_all();
NOTICE:  Calling test_slru_scan_cb()
 test_slru_delete_all 
----------------------
 
(1 row)

SELECT test_slru_page_exists(12345);
 test_slru_page_exists 
-----------------------
 f
(1 row)

SELECT test_slru_page_exists(12377);
 test_slru_page_exists 
-----------------------
 f
(1 row)

SELECT test_slru_page_exists(12393);
 test_slru_page_exists 
-----------------------
 f
(1 row)

--
-- Test 64-bit pages
--
SELECT test_slru_page_exists(0x1234500000000);
 test_slru_page_exists 
-----------------------
 f
(1 row)

SELECT test_slru_page_write(0x1234500000000, 'Test SLRU 64-bit');
 test_slru_page_write 
----------------------
 
(1 row)

SELECT test_slru_page_read(0x1234500000000);
 test_slru_page_read 
---------------------
 Test SLRU 64-bit
(1 row)

SELECT test_slru_page_exists(0x1234500000000);
 test_slru_page_exists 
-----------------------
 t
(1 row)

-- 48 extra pages
SELECT count(test_slru_page_write(a, 'Test SLRU 64-bit'))
  FROM generate_series(0x1234500000001, 0x1234500000030, 1) as a;
 count 
-------
    48
(1 row)

-- Reading page in buffer for read and write
SELECT test_slru_page_read(0x1234500000020, true);
 test_slru_page_read 
---------------------
 Test SLRU 64-bit
(1 row)

-- Reading page in buffer for read-only
SELECT test_slru_page_readonly(0x1234500000020);
 test_slru_page_readonly 
-------------------------
 Test SLRU 64-bit
(1 row)

-- Reading page not in buffer with read-only
SELECT test_slru_page_readonly(0x1234500000001);
 test_slru_page_readonly 
-------------------------
 Test SLRU 64-bit
(1 row)

-- Write all the pages in buffers
SELECT test_slru_page_writeall();
 test_slru_page_writeall 
-------------------------
 
(1 row)

-- Flush the last page written out.
SELECT test_slru_page_sync(0x1234500000030);
NOTICE:  Called SlruSyncFileTag() for segment 10007944888321 on path pg_test_slru/000091A28000001
 test_slru_page_sync 
---------------------
 
(1 row)

SELECT test_slru_page_exists(0x1234500000030);
 test_slru_page_exists 
-----------------------
 t
(1 row)

-- Segment deletion
SELECT test_slru_page_delete(0x1234500000030);
NOTICE:  Called SlruDeleteSegment() for segment 10007944888321
 test_slru_page_delete 
-----------------------
 
(1 row)

SELECT test_slru_page_exists(0x1234500000030);
 test_slru_page_exists 
-----------------------
 f
(1 row)

-- Page truncation
SELECT test_slru_page_exists(0x1234500000020);
 test_slru_page_exists 
-----------------------
 f
(1 row)

SELECT test_slru_page_truncate(0x1234500000020);
 test_slru_page_truncate 
-------------------------
 
(1 row)

SELECT test_slru_page_exists(0x1234500000020);
 test_slru_page_exists 
-----------------------
 f
(1 row)

-- Full deletion
SELECT test_slru_delete_all();
 test_slru_delete_all 
----------------------
 
(1 row)

SELECT test_slru_page_exists(0x1234500000000);
 test_slru_page_exists 
-----------------------
 f
(1 row)

SELECT test_slru_page_exists(0x1234500000020);
 test_slru_page_exists 
-----------------------
 f
(1 row)

SELECT test_slru_page_exists(0x1234500000030);
 test_slru_page_exists 
-----------------------
 f
(1 row)

DROP EXTENSION test_slru;