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Use this for problems that involve returning one or more rows from each group in a data set. Despite the name, this tag is suitable for *minimum-* and *maximum-* per group queries.
15
votes
2
answers
24k
views
SELECT DISTINCT ON, ordered by another column
Please consider the following table test:
CREATE TABLE test(col1 int, col2 varchar, col3 date);
INSERT INTO test VALUES
(1,'abc','2015-09-10')
, (1,'abc','2015-09-11')
, (2,'xyz','2015-09-12')
, (2 …