/
githubmirror
/
postgres
Обзор
Документация
Войти
/
githubmirror
/
postgres
Код
Запросы
0
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
contrib/btree_gin/expected/text.out
93 строки
2 KB
Tom Lane
Add more cross-type comparisons to contrib/btree_gin.
03 июл 2025, 23:30
03 июл 2025, 23:30
fc89682
Код
Авторство
О чём код?
set enable_seqscan=off; CREATE TABLE test_text ( i text ); INSERT INTO test_text VALUES ('a'),('ab'),('abc'),('abb'),('axy'),('xyz'); CREATE INDEX idx_text ON test_text USING gin (i); SELECT * FROM test_text WHERE i<'abc' ORDER BY i; i ----- a ab abb (3 rows) SELECT * FROM test_text WHERE i<='abc' ORDER BY i; i ----- a ab abb abc (4 rows) SELECT * FROM test_text WHERE i='abc' ORDER BY i; i ----- abc (1 row) SELECT * FROM test_text WHERE i>='abc' ORDER BY i; i ----- abc axy xyz (3 rows) SELECT * FROM test_text WHERE i>'abc' ORDER BY i; i ----- axy xyz (2 rows) explain (costs off) SELECT * FROM test_text WHERE i<'abc'::name COLLATE "default" ORDER BY i; QUERY PLAN --------------------------------------------------------------- Sort Sort Key: i -> Bitmap Heap Scan on test_text Recheck Cond: (i < 'abc'::name COLLATE "default") -> Bitmap Index Scan on idx_text Index Cond: (i < 'abc'::name COLLATE "default") (6 rows) SELECT * FROM test_text WHERE i<'abc'::name COLLATE "default" ORDER BY i; i ----- a ab abb (3 rows) SELECT * FROM test_text WHERE i<='abc'::name COLLATE "default" ORDER BY i; i ----- a ab abb abc (4 rows) SELECT * FROM test_text WHERE i='abc'::name COLLATE "default" ORDER BY i; i ----- abc (1 row) SELECT * FROM test_text WHERE i>='abc'::name COLLATE "default" ORDER BY i; i ----- abc axy xyz (3 rows) SELECT * FROM test_text WHERE i>'abc'::name COLLATE "default" ORDER BY i; i ----- axy xyz (2 rows)