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29e312bc13
Per a report from Tom Lane, the ffactor reported by hash_metapage_info and the free_size reported by hash_page_stats vary by platform. Ashutosh Sharma and Robert Haas
81 lines
3.5 KiB
SQL
81 lines
3.5 KiB
SQL
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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SELECT hash_page_type(get_raw_page('test_hash_a_idx', 1));
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SELECT hash_page_type(get_raw_page('test_hash_a_idx', 2));
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SELECT hash_page_type(get_raw_page('test_hash_a_idx', 3));
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SELECT hash_page_type(get_raw_page('test_hash_a_idx', 4));
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SELECT hash_page_type(get_raw_page('test_hash_a_idx', 5));
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SELECT hash_page_type(get_raw_page('test_hash_a_idx', 6));
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', 0);
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', 1);
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', 2);
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', 3);
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', 4);
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SELECT * FROM hash_bitmap_info('test_hash_a_idx', 5);
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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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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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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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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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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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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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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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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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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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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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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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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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SELECT * FROM hash_page_items(get_raw_page('test_hash_a_idx', 0));
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SELECT * FROM hash_page_items(get_raw_page('test_hash_a_idx', 1));
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SELECT * FROM hash_page_items(get_raw_page('test_hash_a_idx', 2));
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SELECT * FROM hash_page_items(get_raw_page('test_hash_a_idx', 3));
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SELECT * FROM hash_page_items(get_raw_page('test_hash_a_idx', 4));
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SELECT * FROM hash_page_items(get_raw_page('test_hash_a_idx', 5));
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DROP TABLE test_hash;
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