206 lines
12 KiB
Plaintext
206 lines
12 KiB
Plaintext
CREATE TABLE test_hash (a int, b text);
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INSERT INTO test_hash VALUES (1, 'one');
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CREATE INDEX test_hash_a_idx ON test_hash USING hash (a);
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\x
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SELECT hash_page_type(get_raw_page('test_hash_a_idx', 0));
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-[ RECORD 1 ]--+---------
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hash_page_type | metapage
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SELECT hash_page_type(get_raw_page('test_hash_a_idx', 1));
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-[ RECORD 1 ]--+-------
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hash_page_type | bucket
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SELECT hash_page_type(get_raw_page('test_hash_a_idx', 2));
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-[ RECORD 1 ]--+-------
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hash_page_type | bucket
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SELECT hash_page_type(get_raw_page('test_hash_a_idx', 3));
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-[ RECORD 1 ]--+-------
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hash_page_type | bucket
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SELECT hash_page_type(get_raw_page('test_hash_a_idx', 4));
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-[ RECORD 1 ]--+-------
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hash_page_type | bucket
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SELECT hash_page_type(get_raw_page('test_hash_a_idx', 5));
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-[ RECORD 1 ]--+-------
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hash_page_type | bitmap
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SELECT hash_page_type(get_raw_page('test_hash_a_idx', 6));
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ERROR: block number 6 is out of range for relation "test_hash_a_idx"
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', -1);
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ERROR: invalid block number
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', 0);
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ERROR: invalid overflow block number 0
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', 1);
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ERROR: invalid overflow block number 1
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', 2);
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ERROR: invalid overflow block number 2
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', 3);
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ERROR: invalid overflow block number 3
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', 4);
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ERROR: invalid overflow block number 4
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', 5);
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ERROR: invalid overflow block number 5
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', 6);
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ERROR: block number 6 is out of range for relation "test_hash_a_idx"
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SELECT magic, version, ntuples, bsize, bmsize, bmshift, maxbucket, highmask,
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lowmask, ovflpoint, firstfree, nmaps, procid, spares, mapp FROM
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hash_metapage_info(get_raw_page('test_hash_a_idx', 0));
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-[ RECORD 1 ]--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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magic | 105121344
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version | 4
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ntuples | 1
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bsize | 8152
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bmsize | 4096
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bmshift | 15
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maxbucket | 3
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highmask | 7
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lowmask | 3
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ovflpoint | 2
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firstfree | 0
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nmaps | 1
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procid | 450
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spares | {0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
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mapp | {5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
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SELECT magic, version, ntuples, bsize, bmsize, bmshift, maxbucket, highmask,
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lowmask, ovflpoint, firstfree, nmaps, procid, spares, mapp FROM
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hash_metapage_info(get_raw_page('test_hash_a_idx', 1));
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ERROR: page is not a hash meta page
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SELECT magic, version, ntuples, bsize, bmsize, bmshift, maxbucket, highmask,
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lowmask, ovflpoint, firstfree, nmaps, procid, spares, mapp FROM
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hash_metapage_info(get_raw_page('test_hash_a_idx', 2));
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ERROR: page is not a hash meta page
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SELECT magic, version, ntuples, bsize, bmsize, bmshift, maxbucket, highmask,
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lowmask, ovflpoint, firstfree, nmaps, procid, spares, mapp FROM
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hash_metapage_info(get_raw_page('test_hash_a_idx', 3));
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ERROR: page is not a hash meta page
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SELECT magic, version, ntuples, bsize, bmsize, bmshift, maxbucket, highmask,
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lowmask, ovflpoint, firstfree, nmaps, procid, spares, mapp FROM
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hash_metapage_info(get_raw_page('test_hash_a_idx', 4));
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ERROR: page is not a hash meta page
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SELECT magic, version, ntuples, bsize, bmsize, bmshift, maxbucket, highmask,
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lowmask, ovflpoint, firstfree, nmaps, procid, spares, mapp FROM
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hash_metapage_info(get_raw_page('test_hash_a_idx', 5));
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ERROR: page is not a hash meta page
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SELECT live_items, dead_items, page_size, hasho_prevblkno, hasho_nextblkno,
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hasho_bucket, hasho_flag, hasho_page_id FROM
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hash_page_stats(get_raw_page('test_hash_a_idx', 0));
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ERROR: page is not a hash bucket or overflow page
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SELECT live_items, dead_items, page_size, hasho_prevblkno, hasho_nextblkno,
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hasho_bucket, hasho_flag, hasho_page_id FROM
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hash_page_stats(get_raw_page('test_hash_a_idx', 1));
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-[ RECORD 1 ]---+-----------
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live_items | 0
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dead_items | 0
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page_size | 8192
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hasho_prevblkno | 3
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hasho_nextblkno | 4294967295
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hasho_bucket | 0
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hasho_flag | 2
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hasho_page_id | 65408
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SELECT live_items, dead_items, page_size, hasho_prevblkno, hasho_nextblkno,
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hasho_bucket, hasho_flag, hasho_page_id FROM
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hash_page_stats(get_raw_page('test_hash_a_idx', 2));
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-[ RECORD 1 ]---+-----------
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live_items | 0
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dead_items | 0
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page_size | 8192
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hasho_prevblkno | 3
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hasho_nextblkno | 4294967295
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hasho_bucket | 1
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hasho_flag | 2
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hasho_page_id | 65408
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SELECT live_items, dead_items, page_size, hasho_prevblkno, hasho_nextblkno,
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hasho_bucket, hasho_flag, hasho_page_id FROM
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hash_page_stats(get_raw_page('test_hash_a_idx', 3));
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-[ RECORD 1 ]---+-----------
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live_items | 1
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dead_items | 0
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page_size | 8192
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hasho_prevblkno | 3
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hasho_nextblkno | 4294967295
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hasho_bucket | 2
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hasho_flag | 2
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hasho_page_id | 65408
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SELECT live_items, dead_items, page_size, hasho_prevblkno, hasho_nextblkno,
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hasho_bucket, hasho_flag, hasho_page_id FROM
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hash_page_stats(get_raw_page('test_hash_a_idx', 4));
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-[ RECORD 1 ]---+-----------
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live_items | 0
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dead_items | 0
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page_size | 8192
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hasho_prevblkno | 3
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hasho_nextblkno | 4294967295
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hasho_bucket | 3
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hasho_flag | 2
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hasho_page_id | 65408
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SELECT live_items, dead_items, page_size, hasho_prevblkno, hasho_nextblkno,
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hasho_bucket, hasho_flag, hasho_page_id FROM
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hash_page_stats(get_raw_page('test_hash_a_idx', 5));
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ERROR: page is not a hash bucket or overflow page
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SELECT * FROM hash_page_items(get_raw_page('test_hash_a_idx', 0));
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ERROR: page is not a hash bucket or overflow page
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SELECT * FROM hash_page_items(get_raw_page('test_hash_a_idx', 1));
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(0 rows)
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SELECT * FROM hash_page_items(get_raw_page('test_hash_a_idx', 2));
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(0 rows)
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SELECT * FROM hash_page_items(get_raw_page('test_hash_a_idx', 3));
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-[ RECORD 1 ]----------
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itemoffset | 1
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ctid | (0,1)
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data | 2389907270
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SELECT * FROM hash_page_items(get_raw_page('test_hash_a_idx', 4));
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(0 rows)
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SELECT * FROM hash_page_items(get_raw_page('test_hash_a_idx', 5));
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ERROR: page is not a hash bucket or overflow page
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-- Failure with non-hash index
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CREATE INDEX test_hash_a_btree ON test_hash USING btree (a);
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SELECT hash_bitmap_info('test_hash_a_btree', 0);
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ERROR: "test_hash_a_btree" is not a hash index
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-- Failure with various modes.
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-- Suppress the DETAIL message, to allow the tests to work across various
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-- page sizes and architectures.
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\set VERBOSITY terse
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-- invalid page size
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SELECT hash_metapage_info('aaa'::bytea);
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ERROR: invalid page size
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SELECT hash_page_items('bbb'::bytea);
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ERROR: invalid page size
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SELECT hash_page_stats('ccc'::bytea);
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ERROR: invalid page size
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SELECT hash_page_type('ddd'::bytea);
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ERROR: invalid page size
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-- invalid special area size
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SELECT hash_metapage_info(get_raw_page('test_hash', 0));
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ERROR: input page is not a valid hash page
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SELECT hash_page_items(get_raw_page('test_hash', 0));
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ERROR: input page is not a valid hash page
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SELECT hash_page_stats(get_raw_page('test_hash', 0));
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ERROR: input page is not a valid hash page
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SELECT hash_page_type(get_raw_page('test_hash', 0));
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ERROR: input page is not a valid hash page
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\set VERBOSITY default
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-- Tests with all-zero pages.
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SHOW block_size \gset
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SELECT hash_metapage_info(decode(repeat('00', :block_size), 'hex'));
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ERROR: page is not a hash meta page
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SELECT hash_page_items(decode(repeat('00', :block_size), 'hex'));
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ERROR: page is not a hash bucket or overflow page
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SELECT hash_page_stats(decode(repeat('00', :block_size), 'hex'));
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ERROR: page is not a hash bucket or overflow page
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SELECT hash_page_type(decode(repeat('00', :block_size), 'hex'));
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-[ RECORD 1 ]--+-------
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hash_page_type | unused
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DROP TABLE test_hash;
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