diff --git a/laravel/database/connectors/mysql.php b/laravel/database/connectors/mysql.php
index 78d35917..ad4cc12e 100644
--- a/laravel/database/connectors/mysql.php
+++ b/laravel/database/connectors/mysql.php
@@ -32,7 +32,7 @@ class MySQL extends Connector {
 
 		if (isset($config['charset']))
 		{
-			$connection->prepare("SET NAMES '{$charset}'")->execute();
+			$connection->prepare("SET NAMES '{$config['charset']}'")->execute();
 		}
 
 		return $connection;
diff --git a/laravel/database/connectors/postgres.php b/laravel/database/connectors/postgres.php
index 0ac9f832..d128583c 100644
--- a/laravel/database/connectors/postgres.php
+++ b/laravel/database/connectors/postgres.php
@@ -32,7 +32,7 @@ class Postgres extends Connector {
 
 		if (isset($config['charset']))
 		{
-			$connection->prepare("SET NAMES '{$charset}'")->execute();
+			$connection->prepare("SET NAMES '{$config['charset']}'")->execute();
 		}
 
 		return $connection;
diff --git a/laravel/database/query.php b/laravel/database/query.php
index d63704d4..e189dc1f 100644
--- a/laravel/database/query.php
+++ b/laravel/database/query.php
@@ -157,6 +157,7 @@ class Query {
 
 			call_user_func($column1, end($this->joins));
 		}
+
 		// If the column is just a string, we can assume that the join just
 		// has a simple on clause, and we'll create the join instance and
 		// add the clause automatically for the develoepr.
@@ -648,15 +649,18 @@ class Query {
 	 */
 	public function aggregate($aggregator, $columns)
 	{
+		// We'll set the aggregate value so the grammar does not try to compile
+		// a SELECT clause on the query. If an aggregator is present, it's own
+		// grammar function will be used to build the SQL syntax.
 		$this->aggregate = compact('aggregator', 'columns');
 
 		$sql = $this->grammar->select($this);
 
 		$result = $this->connection->only($sql, $this->bindings);
 
-		// Reset the aggregate so more queries can be performed using
-		// the same instance. This is helpful for getting aggregates
-		// and then getting actual results from the query.
+		// Reset the aggregate so more queries can be performed using the same
+		// instance. This is helpful for getting aggregates and then getting
+		// actual results from the query such as during paging.
 		$this->aggregate = null;
 
 		return $result;
@@ -673,8 +677,7 @@ class Query {
 	{
 		// Because some database engines may throw errors if we leave orderings
 		// on the query when retrieving the total number of records, we'll drop
-		// all of the ordreings and put them back on the query after we have
-		// retrieved the count from the table.
+		// all of the ordreings and put them back on the query.
 		list($orderings, $this->orderings) = array($this->orderings, null);
 
 		$total = $this->count(reset($columns));
@@ -685,8 +688,7 @@ class Query {
 
 		// Now we're ready to get the actual pagination results from the table
 		// using the for_page and get methods. The "for_page" method provides
-		// a convenient way to set the limit and offset so we get the correct
-		// span of results from the table.
+		// a convenient way to set the paging limit and offset.
 		$results = $this->for_page($page, $per_page)->get($columns);
 
 		return Paginator::make($results, $total, $per_page);
@@ -773,10 +775,12 @@ class Query {
 	 */
 	protected function adjust($column, $amount, $operator)
 	{
-		// To make the adjustment to the column, we'll wrap the expression
-		// in an Expression instance, which forces the adjustment to be
-		// injected into the query as a string instead of bound.
-		$value = Database::raw($this->grammar->wrap($column).$operator.$amount);
+		$wrapped = $this->grammar->wrap($column);
+
+		// To make the adjustment to the column, we'll wrap the expression in
+		// an Expression instance, which forces the adjustment to be injected
+		// into the query as a string instead of bound.
+		$value = Database::raw($wrapped.$operator.$amount);
 
 		return $this->update(array($column => $value));
 	}