File: text.sql

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postgresql-9.4 9.4.18-0%2Bdeb8u1
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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;
SELECT * FROM test_text WHERE i<='abc' ORDER BY i;
SELECT * FROM test_text WHERE i='abc' ORDER BY i;
SELECT * FROM test_text WHERE i>='abc' ORDER BY i;
SELECT * FROM test_text WHERE i>'abc' ORDER BY i;