diff --git a/jOOQ-meta/src/main/java/org/jooq/meta/postgres/PostgresDatabase.java b/jOOQ-meta/src/main/java/org/jooq/meta/postgres/PostgresDatabase.java
index fb9e312349..85bcf7ad16 100644
--- a/jOOQ-meta/src/main/java/org/jooq/meta/postgres/PostgresDatabase.java
+++ b/jOOQ-meta/src/main/java/org/jooq/meta/postgres/PostgresDatabase.java
@@ -996,9 +996,7 @@ public class PostgresDatabase extends AbstractDatabase implements ResultQueryDat
             // [#3375] Exclude table-valued functions as they're already generated as tables
             .join(PG_NAMESPACE).on(PG_NAMESPACE.NSPNAME.eq(r1.SPECIFIC_SCHEMA))
             .join(PG_PROC).on(PG_PROC.PRONAMESPACE.eq(PG_NAMESPACE.OID))
-                          .and(is12()
-                              ? condition("nameconcatoid({0}, {1}) = {2}", PG_PROC.PRONAME, PG_PROC.OID, r1.SPECIFIC_NAME)
-                              : PG_PROC.PRONAME.concat("_").concat(PG_PROC.OID).eq(r1.SPECIFIC_NAME))
+                          .and(nameconcatoid(r1))
             .where(r1.ROUTINE_SCHEMA.in(getInputSchemata()))
             .and(tableValuedFunctions()
                     ? condition(not(PG_PROC.PRORETSET))
@@ -1013,6 +1011,12 @@ public class PostgresDatabase extends AbstractDatabase implements ResultQueryDat
             .collect(mapping(r -> new PostgresRoutineDefinition(this, r), Collectors.<RoutineDefinition>toList()));
     }
 
+    protected Condition nameconcatoid(Routines r1) {
+        return is12()
+              ? condition("nameconcatoid({0}, {1}) = {2}", PG_PROC.PRONAME, PG_PROC.OID, r1.SPECIFIC_NAME)
+              : PG_PROC.PRONAME.concat("_").concat(PG_PROC.OID).eq(r1.SPECIFIC_NAME);
+    }
+
     @Override
     protected List<PackageDefinition> getPackages0() throws SQLException {
         List<PackageDefinition> result = new ArrayList<>();