From 7ec1d714dfab67da726a07f7e0fe117f75f5e137 Mon Sep 17 00:00:00 2001
From: Lukas Eder <lukas.eder@gmail.com>
Date: Fri, 10 Dec 2021 14:20:17 +0100
Subject: [PATCH] [jOOQ/jOOQ#12731] DB2Database should order routine overloads
 by signature, not specificname

This includes:

- [jOOQ/jOOQ#12727] Support overloads also in Informix
---
 .../main/java/org/jooq/meta/AbstractDatabase.java    | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/jOOQ-meta/src/main/java/org/jooq/meta/AbstractDatabase.java b/jOOQ-meta/src/main/java/org/jooq/meta/AbstractDatabase.java
index 3db8f2109c..5affa4aedd 100644
--- a/jOOQ-meta/src/main/java/org/jooq/meta/AbstractDatabase.java
+++ b/jOOQ-meta/src/main/java/org/jooq/meta/AbstractDatabase.java
@@ -46,7 +46,12 @@ import static org.jooq.Log.Level.ERROR;
 import static org.jooq.SQLDialect.CUBRID;
 import static org.jooq.SQLDialect.FIREBIRD;
 import static org.jooq.SQLDialect.SQLITE;
+import static org.jooq.impl.DSL.count;
 import static org.jooq.impl.DSL.falseCondition;
+import static org.jooq.impl.DSL.one;
+import static org.jooq.impl.DSL.partitionBy;
+import static org.jooq.impl.DSL.rowNumber;
+import static org.jooq.impl.DSL.when;
 import static org.jooq.meta.AbstractTypedElementDefinition.customType;
 import static org.jooq.tools.StringUtils.defaultIfBlank;
 import static org.jooq.tools.StringUtils.defaultIfEmpty;
@@ -3367,4 +3372,11 @@ public abstract class AbstractDatabase implements Database {
             }
         }
     }
+
+    protected final Field<Integer> overload(Field<String> schema, Field<String> name, Field<String> order) {
+        return when(
+            count().over(partitionBy(schema, name)).gt(one()),
+            rowNumber().over(partitionBy(schema, name).orderBy(order))
+        ).as("overload");
+    }
 }