diff --git a/lib/Doctrine/ORM/Persisters/AbstractCollectionPersister.php b/lib/Doctrine/ORM/Persisters/AbstractCollectionPersister.php
index 189809697..250f7c0ef 100644
--- a/lib/Doctrine/ORM/Persisters/AbstractCollectionPersister.php
+++ b/lib/Doctrine/ORM/Persisters/AbstractCollectionPersister.php
@@ -65,9 +65,11 @@ abstract class AbstractCollectionPersister
     public function delete(PersistentCollection $coll)
     {
         $mapping = $coll->getMapping();
+        
         if ( ! $mapping['isOwningSide']) {
             return; // ignore inverse side
         }
+        
         $sql = $this->_getDeleteSQL($coll);
         $this->_conn->executeUpdate($sql, $this->_getDeleteSQLParameters($coll));
     }
@@ -96,9 +98,11 @@ abstract class AbstractCollectionPersister
     public function update(PersistentCollection $coll)
     {
         $mapping = $coll->getMapping();
+        
         if ( ! $mapping['isOwningSide']) {
             return; // ignore inverse side
         }
+        
         $this->deleteRows($coll);
         //$this->updateRows($coll);
         $this->insertRows($coll);
@@ -108,6 +112,7 @@ abstract class AbstractCollectionPersister
     {        
         $deleteDiff = $coll->getDeleteDiff();
         $sql = $this->_getDeleteRowSQL($coll);
+        
         foreach ($deleteDiff as $element) {
             $this->_conn->executeUpdate($sql, $this->_getDeleteRowSQLParameters($coll, $element));
         }
@@ -120,6 +125,7 @@ abstract class AbstractCollectionPersister
     {
         $insertDiff = $coll->getInsertDiff();
         $sql = $this->_getInsertRowSQL($coll);
+        
         foreach ($insertDiff as $element) {
             $this->_conn->executeUpdate($sql, $this->_getInsertRowSQLParameters($coll, $element));
         }
diff --git a/lib/Doctrine/ORM/Persisters/AbstractEntityInheritancePersister.php b/lib/Doctrine/ORM/Persisters/AbstractEntityInheritancePersister.php
index 425da798a..670cf11e7 100644
--- a/lib/Doctrine/ORM/Persisters/AbstractEntityInheritancePersister.php
+++ b/lib/Doctrine/ORM/Persisters/AbstractEntityInheritancePersister.php
@@ -39,10 +39,12 @@ abstract class AbstractEntityInheritancePersister extends BasicEntityPersister
     protected function _prepareInsertData($entity)
     {
         $data = parent::_prepareInsertData($entity);
+        
         // Populate the discriminator column
         $discColumn = $this->_class->discriminatorColumn;
         $this->_columnTypes[$discColumn['name']] = $discColumn['type'];
         $data[$this->_getDiscriminatorColumnTableName()][$discColumn['name']] = $this->_class->discriminatorValue;
+        
         return $data;
     }
 
@@ -63,7 +65,7 @@ abstract class AbstractEntityInheritancePersister extends BasicEntityPersister
         $columnAlias = $this->_platform->getSQLResultCasing($columnName . $this->_sqlAliasCounter++);
         $this->_rsm->addFieldResult($alias, $columnAlias, $field, $class->name);
 
-        return "$sql AS $columnAlias";
+        return $sql . ' AS ' . $columnAlias;
     }
 
     protected function getSelectJoinColumnSQL($tableAlias, $joinColumnName, $className)
@@ -72,6 +74,6 @@ abstract class AbstractEntityInheritancePersister extends BasicEntityPersister
         $resultColumnName = $this->_platform->getSQLResultCasing($columnAlias);
         $this->_rsm->addMetaResult('r', $resultColumnName, $joinColumnName);
         
-        return $tableAlias . ".$joinColumnName AS $columnAlias";
+        return $tableAlias . '.' . $joinColumnName . ' AS ' . $columnAlias;
     }
 }
\ No newline at end of file
diff --git a/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php b/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php
index 328e3f091..590df6894 100644
--- a/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php
+++ b/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php
@@ -229,6 +229,7 @@ class BasicEntityPersister
 
             if (isset($insertData[$tableName])) {
                 $paramIndex = 1;
+                
                 foreach ($insertData[$tableName] as $column => $value) {
                     $stmt->bindValue($paramIndex++, $value, $this->_columnTypes[$column]);
                 }
diff --git a/lib/Doctrine/ORM/Persisters/JoinedSubclassPersister.php b/lib/Doctrine/ORM/Persisters/JoinedSubclassPersister.php
index 715495b01..abc3fbc79 100644
--- a/lib/Doctrine/ORM/Persisters/JoinedSubclassPersister.php
+++ b/lib/Doctrine/ORM/Persisters/JoinedSubclassPersister.php
@@ -22,6 +22,7 @@ namespace Doctrine\ORM\Persisters;
 use Doctrine\ORM\ORMException,
     Doctrine\ORM\Mapping\ClassMetadata,
     Doctrine\DBAL\LockMode,
+    Doctrine\DBAL\Types\Type,
     Doctrine\ORM\Query\ResultSetMapping;
 
 /**
@@ -143,9 +144,11 @@ class JoinedSubclassPersister extends AbstractEntityInheritancePersister
 
             // Execute insert on root table
             $paramIndex = 1;
+            
             foreach ($insertData[$rootTableName] as $columnName => $value) {
                 $rootTableStmt->bindValue($paramIndex++, $value, $this->_columnTypes[$columnName]);
             }
+            
             $rootTableStmt->execute();
 
             if ($isPostInsertId) {
@@ -160,12 +163,17 @@ class JoinedSubclassPersister extends AbstractEntityInheritancePersister
             foreach ($subTableStmts as $tableName => $stmt) {
                 $data = isset($insertData[$tableName]) ? $insertData[$tableName] : array();
                 $paramIndex = 1;
-                foreach ((array) $id as $idVal) {
-                    $stmt->bindValue($paramIndex++, $idVal);
+                
+                foreach ((array) $id as $idName => $idVal) {
+                    $type = isset($this->_columnTypes[$idName]) ? $this->_columnTypes[$idName] : Type::STRING;
+                    
+                    $stmt->bindValue($paramIndex++, $idVal, $type);
                 }
+                
                 foreach ($data as $columnName => $value) {
                     $stmt->bindValue($paramIndex++, $value, $this->_columnTypes[$columnName]);
                 }
+                
                 $stmt->execute();
             }
         }
@@ -191,7 +199,7 @@ class JoinedSubclassPersister extends AbstractEntityInheritancePersister
     {
         $updateData = $this->_prepareUpdateData($entity);
 
-        if ($isVersioned = $this->_class->isVersioned) {
+        if (($isVersioned = $this->_class->isVersioned) != false) {
             $versionedClass = $this->_getVersionedClassMetadata();
             $versionedTable = $versionedClass->table['name'];
         }
@@ -200,6 +208,7 @@ class JoinedSubclassPersister extends AbstractEntityInheritancePersister
             foreach ($updateData as $tableName => $data) {
                 $this->_updateTable($entity, $this->_quotedTableMap[$tableName], $data, $isVersioned && $versionedTable == $tableName);
             }
+            
             // Make sure the table with the version column is updated even if no columns on that
             // table were affected.
             if ($isVersioned && ! isset($updateData[$versionedTable])) {
@@ -229,6 +238,7 @@ class JoinedSubclassPersister extends AbstractEntityInheritancePersister
         } else {
             // Delete from all tables individually, starting from this class' table up to the root table.
             $this->_conn->delete($this->_class->getQuotedTableName($this->_platform), $id);
+            
             foreach ($this->_class->parentClasses as $parentClass) {
                 $this->_conn->delete($this->_em->getClassMetadata($parentClass)->getQuotedTableName($this->_platform), $id);
             }
diff --git a/lib/Doctrine/ORM/Persisters/ManyToManyPersister.php b/lib/Doctrine/ORM/Persisters/ManyToManyPersister.php
index 6ca2b15a5..ce794781c 100644
--- a/lib/Doctrine/ORM/Persisters/ManyToManyPersister.php
+++ b/lib/Doctrine/ORM/Persisters/ManyToManyPersister.php
@@ -39,9 +39,10 @@ class ManyToManyPersister extends AbstractCollectionPersister
      */
     protected function _getDeleteRowSQL(PersistentCollection $coll)
     {
-        $mapping = $coll->getMapping();
+        $mapping   = $coll->getMapping();
         $joinTable = $mapping['joinTable'];
-        $columns = $mapping['joinTableColumns'];
+        $columns   = $mapping['joinTableColumns'];
+        
         return 'DELETE FROM ' . $joinTable['name'] . ' WHERE ' . implode(' = ? AND ', $columns) . ' = ?';
     }