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CREATE EXTENSION test_tidstore;
-- To hide the output of do_set_block_offsets()
CREATE TEMP TABLE hideblocks(blockno bigint);
-- Constant values used in the tests.
\set maxblkno 4294967295
-- The maximum number of heap tuples (MaxHeapTuplesPerPage) in 8kB block is 291.
-- We use a higher number to test tidstore.
\set maxoffset 512
SELECT test_create(false);
test_create
-------------
(1 row)
-- Test on empty tidstore.
SELECT test_is_full();
test_is_full
--------------
f
(1 row)
SELECT check_set_block_offsets();
check_set_block_offsets
-------------------------
(1 row)
-- Add TIDs.
INSERT INTO hideblocks (blockno)
SELECT do_set_block_offsets(blk, array_agg(off)::int2[])
FROM
(VALUES (0), (1), (:maxblkno / 2), (:maxblkno - 1), (:maxblkno)) AS blocks(blk),
(VALUES (1), (2), (:maxoffset / 2), (:maxoffset - 1), (:maxoffset)) AS offsets(off)
GROUP BY blk;
-- Test offsets embedded in the bitmap header.
SELECT do_set_block_offsets(501, array[greatest((random() * :maxoffset)::int, 1)]::int2[]);
do_set_block_offsets
----------------------
501
(1 row)
SELECT do_set_block_offsets(502, array_agg(DISTINCT greatest((random() * :maxoffset)::int, 1))::int2[])
FROM generate_series(1, 3);
do_set_block_offsets
----------------------
502
(1 row)
-- Add enough TIDs to cause the store to appear "full", compared
-- to the allocated memory it started out with. This is easier
-- with memory contexts in local memory.
INSERT INTO hideblocks (blockno)
SELECT do_set_block_offsets(blk, ARRAY[1,31,32,63,64,200]::int2[])
FROM generate_series(1000, 2000, 1) blk;
-- Zero offset not allowed
SELECT do_set_block_offsets(1, ARRAY[0]::int2[]);
ERROR: tuple offset out of range: 0
-- Check TIDs we've added to the store.
SELECT check_set_block_offsets();
check_set_block_offsets
-------------------------
(1 row)
SELECT test_is_full();
test_is_full
--------------
t
(1 row)
-- Re-create the TID store for randommized tests.
SELECT test_destroy();
test_destroy
--------------
(1 row)
-- Test replacements crossing RT_CHILDPTR_IS_VALUE in both directions
SELECT test_create(false);
test_create
-------------
(1 row)
SELECT do_set_block_offsets(1, array[1]::int2[]); SELECT check_set_block_offsets();
do_set_block_offsets
----------------------
1
(1 row)
check_set_block_offsets
-------------------------
(1 row)
SELECT do_set_block_offsets(1, array[1,2]::int2[]); SELECT check_set_block_offsets();
do_set_block_offsets
----------------------
1
(1 row)
check_set_block_offsets
-------------------------
(1 row)
SELECT do_set_block_offsets(1, array[1,2,3]::int2[]); SELECT check_set_block_offsets();
do_set_block_offsets
----------------------
1
(1 row)
check_set_block_offsets
-------------------------
(1 row)
SELECT do_set_block_offsets(1, array[1,2,3,4]::int2[]); SELECT check_set_block_offsets();
do_set_block_offsets
----------------------
1
(1 row)
check_set_block_offsets
-------------------------
(1 row)
SELECT do_set_block_offsets(1, array[1,2,3,4,100]::int2[]); SELECT check_set_block_offsets();
do_set_block_offsets
----------------------
1
(1 row)
check_set_block_offsets
-------------------------
(1 row)
SELECT do_set_block_offsets(1, array[1,2,3,4]::int2[]); SELECT check_set_block_offsets();
do_set_block_offsets
----------------------
1
(1 row)
check_set_block_offsets
-------------------------
(1 row)
SELECT do_set_block_offsets(1, array[1,2,3]::int2[]); SELECT check_set_block_offsets();
do_set_block_offsets
----------------------
1
(1 row)
check_set_block_offsets
-------------------------
(1 row)
SELECT do_set_block_offsets(1, array[1,2]::int2[]); SELECT check_set_block_offsets();
do_set_block_offsets
----------------------
1
(1 row)
check_set_block_offsets
-------------------------
(1 row)
SELECT do_set_block_offsets(1, array[1]::int2[]); SELECT check_set_block_offsets();
do_set_block_offsets
----------------------
1
(1 row)
check_set_block_offsets
-------------------------
(1 row)
SELECT test_destroy();
test_destroy
--------------
(1 row)
-- Use shared memory this time. We can't do that in test_radixtree.sql,
-- because unused static functions would raise warnings there.
SELECT test_create(true);
test_create
-------------
(1 row)
-- Test offsets embedded in the bitmap header.
SELECT do_set_block_offsets(501, array[greatest((random() * :maxoffset)::int, 1)]::int2[]);
do_set_block_offsets
----------------------
501
(1 row)
SELECT do_set_block_offsets(502, array_agg(DISTINCT greatest((random() * :maxoffset)::int, 1))::int2[])
FROM generate_series(1, 3);
do_set_block_offsets
----------------------
502
(1 row)
-- Random TIDs test. The offset numbers are randomized and must be
-- unique and ordered.
INSERT INTO hideblocks (blockno)
SELECT do_set_block_offsets(blkno, array_agg(DISTINCT greatest((random() * :maxoffset)::int, 1))::int2[])
FROM generate_series(1, 100) num_offsets,
generate_series(1000, 1100, 1) blkno
GROUP BY blkno;
-- Check TIDs we've added to the store.
SELECT check_set_block_offsets();
check_set_block_offsets
-------------------------
(1 row)
-- cleanup
SELECT test_destroy();
test_destroy
--------------
(1 row)
DROP TABLE hideblocks;
|
