postgresql/src/test/regress/sql/spgist.sql
Alvaro Herrera 4b95cc1dc3 Add more tests for reloptions
This is preparation for a future patch to extensively change how
reloptions work.

Author: Nikolay Shaplov
Reviewed-by: Michael Paquier
Discussion: https://postgr.es/m/2615372.orqtEn8VGB@x200m
2017-10-19 14:22:05 +02:00

59 lines
2.3 KiB
SQL

--
-- Test SP-GiST indexes.
--
-- There are other tests to test different SP-GiST opclasses. This is for
-- testing SP-GiST code itself.
create table spgist_point_tbl(id int4, p point);
create index spgist_point_idx on spgist_point_tbl using spgist(p) with (fillfactor = 75);
-- Test vacuum-root operation. It gets invoked when the root is also a leaf,
-- i.e. the index is very small.
insert into spgist_point_tbl (id, p)
select g, point(g*10, g*10) from generate_series(1, 10) g;
delete from spgist_point_tbl where id < 5;
vacuum spgist_point_tbl;
-- Insert more data, to make the index a few levels deep.
insert into spgist_point_tbl (id, p)
select g, point(g*10, g*10) from generate_series(1, 10000) g;
insert into spgist_point_tbl (id, p)
select g+100000, point(g*10+1, g*10+1) from generate_series(1, 10000) g;
-- To test vacuum, delete some entries from all over the index.
delete from spgist_point_tbl where id % 2 = 1;
-- And also delete some concentration of values. (SP-GiST doesn't currently
-- attempt to delete pages even when they become empty, but if it did, this
-- would exercise it)
delete from spgist_point_tbl where id < 10000;
vacuum spgist_point_tbl;
-- The point opclass's choose method only uses the spgMatchNode action,
-- so the other actions are not tested by the above. Create an index using
-- text opclass, which uses the others actions.
create table spgist_text_tbl(id int4, t text);
create index spgist_text_idx on spgist_text_tbl using spgist(t);
insert into spgist_text_tbl (id, t)
select g, 'f' || repeat('o', 100) || g from generate_series(1, 10000) g
union all
select g, 'baaaaaaaaaaaaaar' || g from generate_series(1, 1000) g;
-- Do a lot of insertions that have to split an existing node. Hopefully
-- one of these will cause the page to run out of space, causing the inner
-- tuple to be moved to another page.
insert into spgist_text_tbl (id, t)
select -g, 'f' || repeat('o', 100-g) || 'surprise' from generate_series(1, 100) g;
-- Test out-of-range fillfactor values
create index spgist_point_idx2 on spgist_point_tbl using spgist(p) with (fillfactor = 9);
create index spgist_point_idx2 on spgist_point_tbl using spgist(p) with (fillfactor = 101);
-- Modify fillfactor in existing index
alter index spgist_point_idx set (fillfactor = 90);
reindex index spgist_point_idx;