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52 lines
1.5 KiB
Plaintext
52 lines
1.5 KiB
Plaintext
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CREATE TABLE test1 (a int, b text);
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INSERT INTO test1 VALUES (1, 'one');
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CREATE INDEX test1_a_idx ON test1 USING brin (a);
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SELECT brin_page_type(get_raw_page('test1_a_idx', 0));
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brin_page_type
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----------------
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meta
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(1 row)
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SELECT brin_page_type(get_raw_page('test1_a_idx', 1));
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brin_page_type
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----------------
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revmap
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(1 row)
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SELECT brin_page_type(get_raw_page('test1_a_idx', 2));
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brin_page_type
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----------------
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regular
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(1 row)
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SELECT * FROM brin_metapage_info(get_raw_page('test1_a_idx', 0));
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magic | version | pagesperrange | lastrevmappage
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------------+---------+---------------+----------------
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0xA8109CFA | 1 | 128 | 1
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(1 row)
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SELECT * FROM brin_metapage_info(get_raw_page('test1_a_idx', 1));
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ERROR: page is not a BRIN page of type "metapage"
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DETAIL: Expected special type 0000f091, got 0000f092.
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SELECT * FROM brin_revmap_data(get_raw_page('test1_a_idx', 0)) LIMIT 5;
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ERROR: page is not a BRIN page of type "revmap"
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DETAIL: Expected special type 0000f092, got 0000f091.
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SELECT * FROM brin_revmap_data(get_raw_page('test1_a_idx', 1)) LIMIT 5;
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pages
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-------
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(2,1)
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(0,0)
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(0,0)
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(0,0)
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(0,0)
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(5 rows)
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SELECT * FROM brin_page_items(get_raw_page('test1_a_idx', 2), 'test1_a_idx')
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ORDER BY blknum, attnum LIMIT 5;
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itemoffset | blknum | attnum | allnulls | hasnulls | placeholder | value
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------------+--------+--------+----------+----------+-------------+----------
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1 | 0 | 1 | f | f | f | {1 .. 1}
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(1 row)
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DROP TABLE test1;
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