KEYCLOAK-10744 Fix MariaDB cannot create database

model/jpa/src/main/java/org/keycloak/connections/jpa/updater/liquibase/UpdatedMariaDBDatabase.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2019 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.keycloak.connections.jpa.updater.liquibase;
+
+import java.util.HashSet;
+import java.util.Set;
+import liquibase.database.core.MariaDBDatabase;
+
+/**
+ * @author <a href="mailto:mposolda@redhat.com">Marek Posolda</a>
+ */
+public class UpdatedMariaDBDatabase extends MariaDBDatabase {
+
+    private static final Set<String> RESERVED_WORDS = new HashSet<>();
+
+    @Override
+    public boolean isReservedWord(String string) {
+        return super.isReservedWord(string) || RESERVED_WORDS.contains(string.toUpperCase());
+    }
+
+    @Override
+    public int getPriority() {
+        return super.getPriority() + 1; // Always take precedence over factory MariaDBDatabase
+    }
+
+    static {
+        RESERVED_WORDS.add("PERIOD");
+    }
+}

model/jpa/src/main/java/org/keycloak/connections/jpa/updater/liquibase/conn/DefaultLiquibaseConnectionProvider.java

@@ -34,6 +34,7 @@ import org.jboss.logging.Logger;
 import org.keycloak.Config;
 import org.keycloak.connections.jpa.updater.liquibase.LiquibaseJpaUpdaterProvider;
 import org.keycloak.connections.jpa.updater.liquibase.PostgresPlusDatabase;
+import org.keycloak.connections.jpa.updater.liquibase.UpdatedMariaDBDatabase;
 import org.keycloak.connections.jpa.updater.liquibase.UpdatedMySqlDatabase;
 import org.keycloak.connections.jpa.updater.liquibase.lock.CustomInsertLockRecordGenerator;
 import org.keycloak.connections.jpa.updater.liquibase.lock.CustomLockDatabaseChangeLogGenerator;
@@ -96,6 +97,7 @@ public class DefaultLiquibaseConnectionProvider implements LiquibaseConnectionPr
         DatabaseFactory.getInstance().register(new PostgresPlusDatabase());
         // Adding newer version of MySQL/MariaDB support to liquibase
         DatabaseFactory.getInstance().register(new UpdatedMySqlDatabase());
+        DatabaseFactory.getInstance().register(new UpdatedMariaDBDatabase());
 
         // Change command for creating lock and drop DELETE lock record from it
         SqlGeneratorFactory.getInstance().register(new CustomInsertLockRecordGenerator());