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Add functions to 'pageinspect' to inspect GiST indexes.

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Author: Andrey Borodin and me
Discussion: https://www.postgresql.org/message-id/3E4F9093-A1B5-4DF8-A292-0B48692E3954%40yandex-team.ru
This commit is contained in:
Heikki Linnakangas
2021-01-13 10:33:33 +02:00
parent df10ac625c
commit 756ab29124
7 changed files with 527 additions and 3 deletions
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18
contrib/pageinspect/sql/gist.sql Normal file
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CREATE TABLE test_gist AS SELECT point(i,i) p, i::text t FROM
generate_series(1,1000) i;
CREATE INDEX test_gist_idx ON test_gist USING gist (p);
-- Page 0 is the root, the rest are leaf pages
SELECT * FROM gist_page_opaque_info(get_raw_page('test_gist_idx', 0));
SELECT * FROM gist_page_opaque_info(get_raw_page('test_gist_idx', 1));
SELECT * FROM gist_page_opaque_info(get_raw_page('test_gist_idx', 2));
SELECT * FROM gist_page_items(get_raw_page('test_gist_idx', 0), 'test_gist_idx');
SELECT * FROM gist_page_items(get_raw_page('test_gist_idx', 1), 'test_gist_idx') LIMIT 5;
SELECT * FROM gist_page_items(get_raw_page('test_gist_idx', 2), 'test_gist_idx') LIMIT 5;
SELECT * FROM gist_page_items_bytea(get_raw_page('test_gist_idx', 0));
SELECT * FROM gist_page_items_bytea(get_raw_page('test_gist_idx', 1)) LIMIT 5;
SELECT * FROM gist_page_items_bytea(get_raw_page('test_gist_idx', 2)) LIMIT 5;
DROP TABLE test_gist;