diff --git a/jOOQ-codegen/src/main/java/org/jooq/codegen/AbstractGenerator.java b/jOOQ-codegen/src/main/java/org/jooq/codegen/AbstractGenerator.java
index cbb94eee75..c1573ae788 100644
--- a/jOOQ-codegen/src/main/java/org/jooq/codegen/AbstractGenerator.java
+++ b/jOOQ-codegen/src/main/java/org/jooq/codegen/AbstractGenerator.java
@@ -62,7 +62,7 @@ import org.jooq.tools.JooqLogger;
  */
 abstract class AbstractGenerator implements Generator {
 
-    private static final JooqLogger    log                                     = JooqLogger.getLogger(AbstractGenerator.class);
+    private static final JooqLogger    log                                              = JooqLogger.getLogger(AbstractGenerator.class);
 
     boolean                            generateDeprecated                               = true;
     boolean                            generateDeprecationOnUnknownTypes                = true;
@@ -162,11 +162,24 @@ abstract class AbstractGenerator implements Generator {
     protected boolean                  targetClean                                      = true;
     final Language                     languageConfigured;
     Language                           language;
+    Database                           database;
 
     AbstractGenerator(Language language) {
         this.languageConfigured = this.language = language;
     }
 
+    @Override
+    public void generate(Database db) {
+        this.database = db;
+
+        this.database.setIncludeRelations(generateRelations());
+        this.database.setTableValuedFunctions(generateTableValuedFunctions());
+
+        generate0(db);
+    }
+
+    protected void generate0(Database db) {}
+
     void logDatabaseParameters(Database db) {
         String url = "";
         try {
@@ -473,8 +486,12 @@ abstract class AbstractGenerator implements Generator {
     public boolean generateTables() {
 
         // [#5525] When DAOs or records are generated, tables must be generated, too
-        // [#12992] When indexes are generated, tables must be generated.
-        return generateTables || generateRecords || generateDaos || generateIndexes;
+        return generateTables
+            || generateRecords
+            || generateDaos
+
+            // [#12992] When indexes are generated, tables must be generated.
+            || generateIndexes && database.getSchemata().stream().flatMap(s -> database.getIndexes(s).stream()).anyMatch(t -> true);
     }
 
     @Override
diff --git a/jOOQ-codegen/src/main/java/org/jooq/codegen/JavaGenerator.java b/jOOQ-codegen/src/main/java/org/jooq/codegen/JavaGenerator.java
index eaa8e85529..08cd27ba6e 100644
--- a/jOOQ-codegen/src/main/java/org/jooq/codegen/JavaGenerator.java
+++ b/jOOQ-codegen/src/main/java/org/jooq/codegen/JavaGenerator.java
@@ -259,11 +259,6 @@ public class JavaGenerator extends AbstractGenerator {
      */
     private final StopWatch                       watch                        = new StopWatch();
 
-    /**
-     * The underlying database of this generator
-     */
-    private Database                              database;
-
     /**
      * The code generation date, if needed.
      */
@@ -390,15 +385,11 @@ public class JavaGenerator extends AbstractGenerator {
     }
 
     @Override
-    public final void generate(Database db) {
+    public final void generate0(Database db) {
         this.isoDate = DatatypeConverter.printDateTime(Calendar.getInstance(TimeZone.getTimeZone("UTC")));
         this.schemaVersions = new LinkedHashMap<>();
         this.catalogVersions = new LinkedHashMap<>();
-
-        this.database = db;
         this.database.addFilter(new AvoidAmbiguousClassesFilter());
-        this.database.setIncludeRelations(generateRelations());
-        this.database.setTableValuedFunctions(generateTableValuedFunctions());
 
         logDatabaseParameters(db);
         log.info("");
diff --git a/jOOQ-codegen/src/main/java/org/jooq/codegen/XMLGenerator.java b/jOOQ-codegen/src/main/java/org/jooq/codegen/XMLGenerator.java
index 25d5a14c9f..a17ae72cb3 100644
--- a/jOOQ-codegen/src/main/java/org/jooq/codegen/XMLGenerator.java
+++ b/jOOQ-codegen/src/main/java/org/jooq/codegen/XMLGenerator.java
@@ -100,7 +100,7 @@ public class XMLGenerator extends AbstractGenerator {
     }
 
     @Override
-    public void generate(Database db) {
+    public void generate0(Database db) {
         logDatabaseParameters(db);
         log.info("");
         logGenerationRemarks(db);