The following bug has been logged online:
Bug reference: 6053
Logged by: Regina
Email address: [email protected]
PostgreSQL version: 9.1beta1
Operating system: Windows
Description: Can't do DISTINCT on citext column
Details:
I have a table I created like this:
-- With and without the COLLATE in there I get the same error.
CREATE TABLE test
(
fullname citext COLLATE pg_catalog."POSIX",
);
INSERT INTO test(fullname) VALUES('test1'),('test2');
When I do a:
SELECT DISTINCT fullname FROM test;
or a
SELECT DISTINCT fullname COLLATE pg_catalog."POSIX" FROM test;
It gives error:
ERROR: could not determine which collation to use for lower() function
HINT: Use the COLLATE clause to set the collation explicitly.
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