From e046ece89c6bac2f95c524b36433c7b0d0062244 Mon Sep 17 00:00:00 2001
From: Knut Wannheden <knut.wannheden@gmail.com>
Date: Tue, 3 Sep 2019 09:08:08 +0200
Subject: [PATCH] [jOOQ/jOOQ#9110] Fix rendering for countDistinct()

When calling `DSL#countDistinct(Field...)` with an empty array (as in
`countDistinct()`) the rendering is the same as for
`countDistinct(asterisk())`: `COUNT(DISTINCT *)`.
---
 jOOQ/src/main/java/org/jooq/impl/DSL.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/jOOQ/src/main/java/org/jooq/impl/DSL.java b/jOOQ/src/main/java/org/jooq/impl/DSL.java
index b4a3525b0a..9d90544af5 100644
--- a/jOOQ/src/main/java/org/jooq/impl/DSL.java
+++ b/jOOQ/src/main/java/org/jooq/impl/DSL.java
@@ -17865,7 +17865,8 @@ public class DSL {
      */
     @Support({ H2, HSQLDB, MYSQL, POSTGRES })
     public static AggregateFunction<Integer> countDistinct(Field<?>... fields) {
-        return new org.jooq.impl.Function<>("count", true, SQLDataType.INTEGER, nullSafe(fields));
+        fields = nullSafe(fields);
+        return fields.length == 0 ? countDistinct(asterisk()) : new org.jooq.impl.Function<>("count", true, SQLDataType.INTEGER, fields);
     }
 
     /**