123 lines
3.7 KiB
SQL
123 lines
3.7 KiB
SQL
--
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-- BTREE_INDEX
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-- test retrieval of min/max keys for each index
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--
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SELECT b.*
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FROM bt_i4_heap b
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WHERE b.seqno < 1;
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SELECT b.*
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FROM bt_i4_heap b
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WHERE b.seqno >= 9999;
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SELECT b.*
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FROM bt_i4_heap b
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WHERE b.seqno = 4500;
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SELECT b.*
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FROM bt_name_heap b
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WHERE b.seqno < '1'::name;
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SELECT b.*
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FROM bt_name_heap b
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WHERE b.seqno >= '9999'::name;
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SELECT b.*
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FROM bt_name_heap b
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WHERE b.seqno = '4500'::name;
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SELECT b.*
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FROM bt_txt_heap b
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WHERE b.seqno < '1'::text;
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SELECT b.*
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FROM bt_txt_heap b
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WHERE b.seqno >= '9999'::text;
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SELECT b.*
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FROM bt_txt_heap b
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WHERE b.seqno = '4500'::text;
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SELECT b.*
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FROM bt_f8_heap b
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WHERE b.seqno < '1'::float8;
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SELECT b.*
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FROM bt_f8_heap b
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WHERE b.seqno >= '9999'::float8;
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SELECT b.*
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FROM bt_f8_heap b
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WHERE b.seqno = '4500'::float8;
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--
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-- Check correct optimization of LIKE (special index operator support)
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-- for both indexscan and bitmapscan cases
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--
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set enable_seqscan to false;
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set enable_indexscan to true;
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set enable_bitmapscan to false;
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explain (costs off)
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select proname from pg_proc where proname like E'RI\\_FKey%del' order by 1;
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select proname from pg_proc where proname like E'RI\\_FKey%del' order by 1;
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explain (costs off)
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select proname from pg_proc where proname ilike '00%foo' order by 1;
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select proname from pg_proc where proname ilike '00%foo' order by 1;
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explain (costs off)
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select proname from pg_proc where proname ilike 'ri%foo' order by 1;
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set enable_indexscan to false;
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set enable_bitmapscan to true;
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explain (costs off)
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select proname from pg_proc where proname like E'RI\\_FKey%del' order by 1;
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select proname from pg_proc where proname like E'RI\\_FKey%del' order by 1;
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explain (costs off)
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select proname from pg_proc where proname ilike '00%foo' order by 1;
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select proname from pg_proc where proname ilike '00%foo' order by 1;
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explain (costs off)
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select proname from pg_proc where proname ilike 'ri%foo' order by 1;
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reset enable_seqscan;
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reset enable_indexscan;
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reset enable_bitmapscan;
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--
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-- Test B-tree fast path (cache rightmost leaf page) optimization.
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--
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-- First create a tree that's at least three levels deep (i.e. has one level
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-- between the root and leaf levels). The text inserted is long. It won't be
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-- compressed because we use plain storage in the table. Only a few index
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-- tuples fit on each internal page, allowing us to get a tall tree with few
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-- pages. (A tall tree is required to trigger caching.)
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--
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-- The text column must be the leading column in the index, since suffix
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-- truncation would otherwise truncate tuples on internal pages, leaving us
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-- with a short tree.
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create table btree_tall_tbl(id int4, t text);
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alter table btree_tall_tbl alter COLUMN t set storage plain;
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create index btree_tall_idx on btree_tall_tbl (t, id) with (fillfactor = 10);
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insert into btree_tall_tbl select g, repeat('x', 250)
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from generate_series(1, 130) g;
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--
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-- Test vacuum_cleanup_index_scale_factor
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--
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-- Simple create
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create table btree_test(a int);
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create index btree_idx1 on btree_test(a) with (vacuum_cleanup_index_scale_factor = 40.0);
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select reloptions from pg_class WHERE oid = 'btree_idx1'::regclass;
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-- Fail while setting improper values
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create index btree_idx_err on btree_test(a) with (vacuum_cleanup_index_scale_factor = -10.0);
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create index btree_idx_err on btree_test(a) with (vacuum_cleanup_index_scale_factor = 100.0);
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create index btree_idx_err on btree_test(a) with (vacuum_cleanup_index_scale_factor = 'string');
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create index btree_idx_err on btree_test(a) with (vacuum_cleanup_index_scale_factor = true);
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-- Simple ALTER INDEX
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alter index btree_idx1 set (vacuum_cleanup_index_scale_factor = 70.0);
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select reloptions from pg_class WHERE oid = 'btree_idx1'::regclass;
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