[#7176] Regression in PostgreSQL MODE function implementation

jOOQ · Feb 15, 2018 · 6d36567 · 6d36567
1 parent ce1d535
commit 6d36567
Showing 1 changed file with 10 additions and 1 deletion.
diff --git a/jOOQ/src/main/java/org/jooq/impl/Mode.java b/jOOQ/src/main/java/org/jooq/impl/Mode.java
@@ -38,6 +38,8 @@
 package org.jooq.impl;
 
 import org.jooq.AggregateFilterStep;
+import org.jooq.DataType;
+import org.jooq.Field;
 import org.jooq.OrderField;
 import org.jooq.OrderedAggregateFunctionOfDeferredType;
 
@@ -46,8 +48,15 @@
  */
 final class Mode implements OrderedAggregateFunctionOfDeferredType {
 
+    @SuppressWarnings("unchecked")
     @Override
     public final <T> AggregateFilterStep<T> withinGroupOrderBy(OrderField<T> field) {
-        return new Function<T>("mode", ((SortFieldImpl<T>) field).getField().getDataType()).withinGroupOrderBy(field);
+        DataType<T> type = field instanceof SortFieldImpl
+            ? ((SortFieldImpl<T>) field).getField().getDataType()
+            : field instanceof Field
+            ? ((AbstractField<T>) field).getDataType()
+            : (DataType<T>) SQLDataType.NUMERIC;
+
+        return new Function<T>("mode", type).withinGroupOrderBy(field);
     }
 }