diff --git a/components/core/core-initializers/src/main/java/org/eclipse/dirigible/components/initializers/definition/DefinitionRepository.java b/components/core/core-initializers/src/main/java/org/eclipse/dirigible/components/initializers/definition/DefinitionRepository.java
index 33d0adeb51..c84ac06463 100644
--- a/components/core/core-initializers/src/main/java/org/eclipse/dirigible/components/initializers/definition/DefinitionRepository.java
+++ b/components/core/core-initializers/src/main/java/org/eclipse/dirigible/components/initializers/definition/DefinitionRepository.java
@@ -33,4 +33,14 @@ public interface DefinitionRepository extends JpaRepository<Definition, Long> {
     @Query("update Definition d set d.checksum = :checksum where d.type in :types")
     void updateChecksums(String checksum, Set<String> types);
 
+    /**
+     * Initialize checksums.
+     *
+     * @param location the location
+     */
+    @Modifying
+    @Transactional
+    @Query("update Definition d set d.checksum = '' where d.location like :location")
+    void initializeChecksums(String location);
+
 }
diff --git a/components/core/core-initializers/src/main/java/org/eclipse/dirigible/components/initializers/definition/DefinitionService.java b/components/core/core-initializers/src/main/java/org/eclipse/dirigible/components/initializers/definition/DefinitionService.java
index 17757e3ac7..54475008d7 100644
--- a/components/core/core-initializers/src/main/java/org/eclipse/dirigible/components/initializers/definition/DefinitionService.java
+++ b/components/core/core-initializers/src/main/java/org/eclipse/dirigible/components/initializers/definition/DefinitionService.java
@@ -131,4 +131,13 @@ public void updateChecksums(String checksum, Set<String> types) {
         definitionRepository.updateChecksums(checksum, types);
     }
 
+    /**
+     * Initialize checksums.
+     *
+     * @param location the location
+     */
+    public void initializeChecksums(String location) {
+        definitionRepository.initializeChecksums(location + "%");
+    }
+
 }
diff --git a/components/core/core-initializers/src/main/java/org/eclipse/dirigible/components/initializers/synchronizer/SynchronizationWatcherPublisherHandler.java b/components/core/core-initializers/src/main/java/org/eclipse/dirigible/components/initializers/synchronizer/SynchronizationWatcherPublisherHandler.java
index c0ae004adc..461a2b06d4 100644
--- a/components/core/core-initializers/src/main/java/org/eclipse/dirigible/components/initializers/synchronizer/SynchronizationWatcherPublisherHandler.java
+++ b/components/core/core-initializers/src/main/java/org/eclipse/dirigible/components/initializers/synchronizer/SynchronizationWatcherPublisherHandler.java
@@ -11,6 +11,8 @@
 
 import org.eclipse.dirigible.components.base.publisher.PublisherHandler;
 import org.eclipse.dirigible.components.base.synchronizer.SynchronizationWatcher;
+import org.eclipse.dirigible.components.initializers.definition.DefinitionService;
+import org.eclipse.dirigible.repository.api.IRepositoryStructure;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.annotation.Order;
 import org.springframework.stereotype.Component;
@@ -27,6 +29,9 @@ public class SynchronizationWatcherPublisherHandler implements PublisherHandler
     @Autowired
     private SynchronizationWatcher synchronizationWatcher;
 
+    @Autowired
+    private DefinitionService definitionService;
+
     /**
      * Before publish.
      *
@@ -66,6 +71,11 @@ public void beforeUnpublish(String location) {
      */
     @Override
     public void afterUnpublish(String location) {
+        String path = location;
+        if (location.startsWith(IRepositoryStructure.PATH_REGISTRY_PUBLIC)) {
+            path = path.substring(IRepositoryStructure.PATH_REGISTRY_PUBLIC.length());
+        }
+        definitionService.initializeChecksums(path);
         synchronizationWatcher.force();
     }
 
diff --git a/components/data/data-structures/src/main/java/org/eclipse/dirigible/components/data/structures/synchronizer/table/TableAlterProcessor.java b/components/data/data-structures/src/main/java/org/eclipse/dirigible/components/data/structures/synchronizer/table/TableAlterProcessor.java
index be5473d940..ca55b3c6e3 100644
--- a/components/data/data-structures/src/main/java/org/eclipse/dirigible/components/data/structures/synchronizer/table/TableAlterProcessor.java
+++ b/components/data/data-structures/src/main/java/org/eclipse/dirigible/components/data/structures/synchronizer/table/TableAlterProcessor.java
@@ -76,8 +76,7 @@ public static void execute(Connection connection, Table tableModel) throws SQLEx
 
         // ADD iteration
         for (TableColumn columnModel : tableModel.getColumns()) {
-            String name = "\"" + columnModel.getName() + "\"";
-            String nameOriginal = name;
+            String name = columnModel.getName();
 
             DataType type = DataType.valueOfByName(columnModel.getType());
             String length = columnModel.getLength();
@@ -112,7 +111,7 @@ public static void execute(Connection connection, Table tableModel) throws SQLEx
 
             modelColumnNames.add(name.toUpperCase());
 
-            String nameOriginalCanonical = nameOriginal.toUpperCase();
+            String nameOriginalCanonical = name.toUpperCase();
             if (!columnDefinitions.containsKey(nameOriginalCanonical)) {
 
                 AlterTableBuilder alterTableBuilder = SqlFactory.getNative(connection)
@@ -120,7 +119,7 @@ public static void execute(Connection connection, Table tableModel) throws SQLEx
                                                                 .table(tableName);
 
                 alterTableBuilder.add()
-                                 .column(name, type, isPrimaryKey, isNullable, isUnique, args);
+                                 .column("\"" + name + "\"", type, isPrimaryKey, isNullable, isUnique, args);
 
                 if (!isNullable) {
                     throw new SQLException(String.format(INCOMPATIBLE_CHANGE_OF_TABLE, tableName, name, "NOT NULL"));
@@ -144,13 +143,12 @@ public static void execute(Connection connection, Table tableModel) throws SQLEx
 
         // DROP iteration
         for (String columnName : columnDefinitions.keySet()) {
-            columnName = "\"" + columnName + "\"";
             if (!modelColumnNames.contains(columnName.toUpperCase())) {
                 AlterTableBuilder alterTableBuilder = SqlFactory.getNative(connection)
                                                                 .alter()
                                                                 .table(tableName);
                 alterTableBuilder.drop()
-                                 .column(columnName, DataType.BOOLEAN);
+                                 .column("\"" + columnName + "\"", DataType.BOOLEAN);
                 executeAlterBuilder(connection, alterTableBuilder);
             }
         }
diff --git a/modules/database/database-sql/src/main/java/org/eclipse/dirigible/database/sql/DataTypeUtils.java b/modules/database/database-sql/src/main/java/org/eclipse/dirigible/database/sql/DataTypeUtils.java
index f6ade7ade5..3570fbcdc7 100644
--- a/modules/database/database-sql/src/main/java/org/eclipse/dirigible/database/sql/DataTypeUtils.java
+++ b/modules/database/database-sql/src/main/java/org/eclipse/dirigible/database/sql/DataTypeUtils.java
@@ -100,6 +100,8 @@ public class DataTypeUtils {
     private static final String TIMESTAMP = "TIMESTAMP";
     /** The Constant DATE. */
     private static final String DATE = "DATE";
+    /** The Constant DATE. */
+    private static final String DATETIME = "DATETIME";
     /** The Constant TEXT. */
     private static final String TEXT = "TEXT";
     /** The Constant CHARACTER. */
@@ -275,6 +277,7 @@ public class DataTypeUtils {
         UNIFIED_STRING_FROM_DATABASE_TYPE.put(BINARY_VARYING, BLOB);
         UNIFIED_STRING_FROM_DATABASE_TYPE.put(BINARY_LARGE_OBJECT, BLOB);
         UNIFIED_STRING_FROM_DATABASE_TYPE.put(BYTEA, BLOB);
+        UNIFIED_STRING_FROM_DATABASE_TYPE.put(DATETIME, TIMESTAMP);
 
     }