diff --git a/jOOQ/src/main/java/org/jooq/impl/DateDiff.java b/jOOQ/src/main/java/org/jooq/impl/DateDiff.java
index c56c5819b6..fce26438b6 100644
--- a/jOOQ/src/main/java/org/jooq/impl/DateDiff.java
+++ b/jOOQ/src/main/java/org/jooq/impl/DateDiff.java
@@ -186,6 +186,7 @@ final class DateDiff<T> extends AbstractField<Integer> {
 
 
 
+
             case CUBRID:
             case POSTGRES:
                 switch (p) {
@@ -202,6 +203,7 @@ final class DateDiff<T> extends AbstractField<Integer> {
                         return;
 
                     case DAY:
+                        switch (ctx.family()) {
 
 
 
@@ -210,10 +212,15 @@ final class DateDiff<T> extends AbstractField<Integer> {
 
 
 
-                        // [#4481] Parentheses are important in case this expression is
-                        //         placed in the context of other arithmetic
-                        ctx.sql('(').visit(date1).sql(" - ").visit(date2).sql(')');
-                        return;
+
+
+                            default:
+
+                                // [#4481] Parentheses are important in case this expression is
+                                //         placed in the context of other arithmetic
+                                ctx.sql('(').visit(date1).sql(" - ").visit(date2).sql(')');
+                                return;
+                        }
 
                     case HOUR:
                     case MINUTE:
@@ -239,10 +246,6 @@ final class DateDiff<T> extends AbstractField<Integer> {
 
 
 
-
-
-
-
         }
 
         ctx.visit(castIfNeeded(date1.minus(date2), Integer.class));