Hello
Given the following example table:
CREATE TABLE foo ( create_time TIMESTAMP WITHOUT TIME ZONE );
INSERT INTO foo (create_time) VALUES (now()); INSERT INTO foo (create_time) VALUES (now()); INSERT INTO foo (create_time) VALUES (now());
This select statement works:
SELECT create_time, create_time + '8 days 16:49:22.600601' FROM foo;
create_time | ?column? ----------------------------+---------------------------- 2004-10-19 16:59:31.065279 | 2004-10-28 09:48:53.66588 2004-10-19 16:59:33.790118 | 2004-10-28 09:48:56.390719 2004-10-19 16:59:34.398063 | 2004-10-28 09:48:56.998664
but this select statement doesnt:
SELECT create_time, create_time - '8 days 16:49:22.600601' FROM foo;
ERROR: invalid input syntax for type timestamp: "8 days 16:49:22.600601"
How can the expression '8 days 16:49:22.600601' be valid in the first SELECT but not in the second?
I have reproduced this on 7.4.1 and 7.4.5.
Thanks Luke
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