From 49c9f50d12d7a5d7151c572c094d9c4b7fb1b93d Mon Sep 17 00:00:00 2001
From: Lukas Eder <lukas.eder@gmail.com>
Date: Fri, 25 Nov 2022 12:58:25 +0100
Subject: [PATCH] [jOOQ/jOOQ#7841] DSL.asterisk() does not work well with plain
 SQL

---
 .../src/main/java/org/jooq/impl/SelectQueryImpl.java | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/jOOQ/src/main/java/org/jooq/impl/SelectQueryImpl.java b/jOOQ/src/main/java/org/jooq/impl/SelectQueryImpl.java
index 47e45cd56d..7b9cba84c1 100644
--- a/jOOQ/src/main/java/org/jooq/impl/SelectQueryImpl.java
+++ b/jOOQ/src/main/java/org/jooq/impl/SelectQueryImpl.java
@@ -3730,7 +3730,8 @@ final class SelectQueryImpl<R extends Record> extends AbstractResultQuery<R> imp
         // [#7921] TODO Find a better, more efficient way to resolve asterisks
         SelectFieldList<SelectFieldOrAsterisk> list = getSelectResolveImplicitAsterisks();
 
-        for (SelectFieldOrAsterisk s : list)
+        int size = 0;
+        for (SelectFieldOrAsterisk s : list) {
             if (s instanceof Field<?> f)
                 result.add(getResolveProjection(ctx, f));
             else if (s instanceof QualifiedAsteriskImpl q) {
@@ -3762,6 +3763,15 @@ final class SelectQueryImpl<R extends Record> extends AbstractResultQuery<R> imp
             else
                 throw new AssertionError("Type not supported: " + s);
 
+            // [#7841] Each iteration must contribute new fields to the result.
+            //         Otherwise, we couldn't resolve an asterisk, and must fall
+            //         back to determining fields from the ResultSetMetaData
+            if (size == result.size())
+                return new SelectFieldList<>();
+            else
+                size = result.size();
+        }
+
         return result;
     }