PostgreSQL gets very confused when date_part() is used in a GROUP BY and the part bit isn't a constant. It doesn't recognize the selected values as being identical to the grouped-by values, and throws an error. So we use a literal here.

2011-02-15 23:21:11 +00:00
parent 6603fb7d81
commit 10e97b55c9
1 changed files with 2 additions and 2 deletions
@@ -87,8 +87,8 @@ public class PostgreSQLBuilder

        @Override public Void visit (DatePart exp)
        {
-            return appendFunctionCall(
-                "date_part", Exps.value(translateDatePart(exp.getPart())), exp.getArg());
+            String datePart = "'" + translateDatePart(exp.getPart()) + "'";
+            return appendFunctionCall("date_part", Exps.literal(datePart), exp.getArg());
        }

        @Override