On Fri, Jun 8, 2018 at 9:12 AM, Melanie Plageman <melanieplage...@gmail.com> wrote:
> I tried inserting data and did not get an error: > > CREATE TABLE test1 ( > a text COLLATE "de_DE", > b text COLLATE "es_ES" > ); > > INSERT INTO test1 VALUES('b','b'), ('c','c'), ('g','g'), ('h','h'); > SELECT a < (select 'foo' COLLATE "fr_FR") FROM test1; > Suggest providing a self-contained script (set echo to all and capture the output to a file), changing the table name to ensure no test pollution, and including the version of the server in one of the queries. I did my test on 9.6.5 (Ubuntu 16.04) with: CREATE TABLE test_col ( a text COLLATE "en_CA.utf8", b text COLLATE "en_US.utf8" ); INSERT INTO test_col VALUES ('A', 'A'); SELECT a < (SELECT 'foo'::text COLLATE "en_GB.utf8") FROM test_col; SQL Error: ERROR: could not determine which collation to use for string comparison HINT: Use the COLLATE clause to set the collation explicitly. Note, I had to include the cast to text in order for the query to execute... David J.