| set enable_seqscan=off; |
| CREATE TABLE test_varchar ( |
| i varchar |
| ); |
| INSERT INTO test_varchar VALUES ('a'),('ab'),('abc'),('abb'),('axy'),('xyz'); |
| CREATE INDEX idx_varchar ON test_varchar USING gin (i); |
| SELECT * FROM test_varchar WHERE i<'abc'::varchar ORDER BY i; |
| i |
| ----- |
| a |
| ab |
| abb |
| (3 rows) |
| |
| SELECT * FROM test_varchar WHERE i<='abc'::varchar ORDER BY i; |
| i |
| ----- |
| a |
| ab |
| abb |
| abc |
| (4 rows) |
| |
| SELECT * FROM test_varchar WHERE i='abc'::varchar ORDER BY i; |
| i |
| ----- |
| abc |
| (1 row) |
| |
| SELECT * FROM test_varchar WHERE i>='abc'::varchar ORDER BY i; |
| i |
| ----- |
| abc |
| axy |
| xyz |
| (3 rows) |
| |
| SELECT * FROM test_varchar WHERE i>'abc'::varchar ORDER BY i; |
| i |
| ----- |
| axy |
| xyz |
| (2 rows) |
| |