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mydb=# select distinct cast(date as date) from myschema.mytable; -[ RECORD 1 ]----------- ... date | 2019-09-20 -[ RECORD 3 ]----------- date | 2019-09-19
$sth_dates_uniq = $dbh->prepare("select distinct cast(date as date) fr +om myschema.mytable;") or die; $sth_dates_uniq->execute(); ... 2019-09-19 2019-09-19 2019-09-19