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1. The raw bytea representation of the point-type keys used in the test depends on endianess. Remove the raw key_data column from the test. 2. The items stored on non-leftmost gist page depends on how many items git on the other pages. This showed up as a failure on 32-bit i386 systems. To fix, only test the gist_page_items() function on the leftmost leaf page. Per Andrey Borodin and the buildfarm. Discussion: https://www.postgresql.org/message-id/9FCEC1DC-86FB-4A57-88EF-DD13663B36AF%40yandex-team.ru
60 lines
2.3 KiB
Plaintext
60 lines
2.3 KiB
Plaintext
CREATE TABLE test_gist AS SELECT point(i,i) p, i::text t FROM
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generate_series(1,1000) i;
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CREATE INDEX test_gist_idx ON test_gist USING gist (p);
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-- Page 0 is the root, the rest are leaf pages
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SELECT * FROM gist_page_opaque_info(get_raw_page('test_gist_idx', 0));
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lsn | nsn | rightlink | flags
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-----+-----+------------+-------
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0/1 | 0/0 | 4294967295 | {}
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(1 row)
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SELECT * FROM gist_page_opaque_info(get_raw_page('test_gist_idx', 1));
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lsn | nsn | rightlink | flags
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-----+-----+------------+--------
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0/1 | 0/0 | 4294967295 | {leaf}
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(1 row)
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SELECT * FROM gist_page_opaque_info(get_raw_page('test_gist_idx', 2));
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lsn | nsn | rightlink | flags
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-----+-----+-----------+--------
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0/1 | 0/0 | 1 | {leaf}
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(1 row)
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SELECT * FROM gist_page_items(get_raw_page('test_gist_idx', 0), 'test_gist_idx');
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itemoffset | ctid | itemlen | keys
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------------+-----------+---------+-------------------
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1 | (1,65535) | 40 | (p)=((166,166))
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2 | (2,65535) | 40 | (p)=((332,332))
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3 | (3,65535) | 40 | (p)=((498,498))
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4 | (4,65535) | 40 | (p)=((664,664))
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5 | (5,65535) | 40 | (p)=((830,830))
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6 | (6,65535) | 40 | (p)=((996,996))
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7 | (7,65535) | 40 | (p)=((1000,1000))
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(7 rows)
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SELECT * FROM gist_page_items(get_raw_page('test_gist_idx', 1), 'test_gist_idx') LIMIT 5;
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itemoffset | ctid | itemlen | keys
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------------+-------+---------+-------------
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1 | (0,1) | 40 | (p)=((1,1))
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2 | (0,2) | 40 | (p)=((2,2))
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3 | (0,3) | 40 | (p)=((3,3))
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4 | (0,4) | 40 | (p)=((4,4))
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5 | (0,5) | 40 | (p)=((5,5))
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(5 rows)
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-- gist_page_items_bytea prints the raw key data as a bytea. The output of that is
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-- platform-dependent (endianess), so omit the actual key data from the output.
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SELECT itemoffset, ctid, itemlen FROM gist_page_items_bytea(get_raw_page('test_gist_idx', 0));
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itemoffset | ctid | itemlen
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------------+-----------+---------
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1 | (1,65535) | 40
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2 | (2,65535) | 40
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3 | (3,65535) | 40
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4 | (4,65535) | 40
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5 | (5,65535) | 40
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6 | (6,65535) | 40
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7 | (7,65535) | 40
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(7 rows)
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DROP TABLE test_gist;
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