diff --git a/extensions/sphinx/Schema.php b/extensions/sphinx/Schema.php
index 628f62f..ca05e38 100644
--- a/extensions/sphinx/Schema.php
+++ b/extensions/sphinx/Schema.php
@@ -7,6 +7,9 @@
 
 namespace yii\sphinx;
 
+use yii\db\ColumnSchema;
+use yii\db\TableSchema;
+
 /**
  * Class Schema
  *
@@ -24,4 +27,89 @@ class Schema extends \yii\db\mysql\Schema
 	{
 		return new QueryBuilder($this->db);
 	}
+
+	/**
+	 * Loads the metadata for the specified table.
+	 * @param string $name table name
+	 * @return TableSchema driver dependent table metadata. Null if the table does not exist.
+	 */
+	protected function loadTableSchema($name)
+	{
+		$table = new TableSchema;
+		$this->resolveTableNames($table, $name);
+
+		if ($this->findColumns($table)) {
+			return $table;
+		} else {
+			return null;
+		}
+	}
+
+	/**
+	 * Collects the metadata of table columns.
+	 * @param TableSchema $table the table metadata
+	 * @return boolean whether the table exists in the database
+	 * @throws \Exception if DB query fails
+	 */
+	protected function findColumns($table)
+	{
+		$sql = 'DESCRIBE ' . $this->quoteSimpleTableName($table->name);
+		try {
+			$columns = $this->db->createCommand($sql)->queryAll();
+		} catch (\Exception $e) {
+			$previous = $e->getPrevious();
+			if ($previous instanceof \PDOException && $previous->getCode() == '42S02') {
+				// index does not exist
+				return false;
+			}
+			throw $e;
+		}
+		foreach ($columns as $info) {
+			$column = $this->loadColumnSchema($info);
+			$table->columns[$column->name] = $column;
+			if ($column->isPrimaryKey) {
+				$table->primaryKey[] = $column->name;
+				if ($column->autoIncrement) {
+					$table->sequenceName = '';
+				}
+			}
+		}
+		return true;
+	}
+
+	/**
+	 * Loads the column information into a [[ColumnSchema]] object.
+	 * @param array $info column information
+	 * @return ColumnSchema the column schema object
+	 */
+	protected function loadColumnSchema($info)
+	{
+		$column = new ColumnSchema;
+
+		$column->name = $info['Field'];
+		// Not supported :
+		//$column->allowNull = $info['Null'] === 'YES';
+		//$column->isPrimaryKey = strpos($info['Key'], 'PRI') !== false;
+		//$column->autoIncrement = stripos($info['Extra'], 'auto_increment') !== false;
+		//$column->comment = $info['Comment'];
+
+
+		$column->dbType = $info['Type'];
+		//$column->unsigned = strpos($column->dbType, 'unsigned') !== false;
+
+		$type = $info['Type'];
+		if (isset($this->typeMap[$type])) {
+			$column->type = $this->typeMap[$type];
+		} else {
+			$column->type = self::TYPE_STRING;
+		}
+
+		$column->phpType = $this->getColumnPhpType($column);
+
+		/*if ($column->type !== 'timestamp' || $info['Default'] !== 'CURRENT_TIMESTAMP') {
+			$column->defaultValue = $column->typecast($info['Default']);
+		}*/
+
+		return $column;
+	}
 }
\ No newline at end of file
diff --git a/tests/unit/data/sphinx/sphinx.conf b/tests/unit/data/sphinx/sphinx.conf
index 8623245..fb28525 100644
--- a/tests/unit/data/sphinx/sphinx.conf
+++ b/tests/unit/data/sphinx/sphinx.conf
@@ -50,7 +50,7 @@ source yii2_test_item_src
 index yii2_test_article_index
 {
 	source			= yii2_test_article_src
-	path			= /var/lib/sphinx/yii2_test_article_src
+	path			= /var/lib/sphinx/yii2_test_article
 	docinfo			= extern
 	charset_type	= sbcs
 }
@@ -59,12 +59,22 @@ index yii2_test_article_index
 index yii2_test_item_index
 {
 	source			= yii2_test_item_src
-	path			= /var/lib/sphinx/yii2_test_item_src
+	path			= /var/lib/sphinx/yii2_test_item
 	docinfo			= extern
 	charset_type	= sbcs
 }
 
 
+index yii2_test_rt_index
+{
+	type			= rt
+	path			= /var/lib/sphinx/yii2_test_rt
+	rt_field		= title
+	rt_field		= content
+	rt_attr_uint	= type_id
+}
+
+
 indexer
 {
 	mem_limit		= 32M
diff --git a/tests/unit/extensions/sphinx/CommandTest.php b/tests/unit/extensions/sphinx/CommandTest.php
index 013b130..47fb5b9 100644
--- a/tests/unit/extensions/sphinx/CommandTest.php
+++ b/tests/unit/extensions/sphinx/CommandTest.php
@@ -9,6 +9,14 @@ use yii\db\DataReader;
  */
 class CommandTest extends SphinxTestCase
 {
+	protected function tearDown()
+	{
+		$this->truncateRuntimeIndex('yii2_test_rt_index');
+		parent::tearDown();
+	}
+
+	// Tests :
+
 	public function testExecute()
 	{
 		$db = $this->getConnection();
@@ -82,4 +90,50 @@ class CommandTest extends SphinxTestCase
 		$this->setExpectedException('\yii\db\Exception');
 		$command->query();
 	}
+
+	/**
+	 * @depends testQuery
+	 */
+	public function testInsert()
+	{
+		$db = $this->getConnection();
+
+		$command = $db->createCommand()->insert('yii2_test_rt_index', [
+			'title' => 'Test title',
+			'content' => 'Test content',
+			'type_id' => 2,
+			'id' => 1,
+		]);
+		$this->assertEquals(1, $command->execute(), 'Unable to execute insert!');
+
+		$rows = $db->createCommand('SELECT * FROM yii2_test_rt_index')->queryAll();
+		$this->assertEquals(1, count($rows), 'No row inserted!');
+	}
+
+	/**
+	 * @depends testInsert
+	 */
+	public function testUpdate()
+	{
+		$db = $this->getConnection();
+
+		$db->createCommand()->insert('yii2_test_rt_index', [
+			'title' => 'Test title',
+			'content' => 'Test content',
+			'type_id' => 2,
+			'id' => 1,
+		])->execute();
+
+		$newTypeId = 5;
+		$command = $db->createCommand()->update(
+			'yii2_test_rt_index',
+			[
+				'title' => 'Test title',
+				'content' => 'Test content',
+				'type_id' => $newTypeId,
+			],
+			'id = 1'
+		);
+		$this->assertEquals(1, $command->execute(), 'Unable to execute update!');
+	}
 }
\ No newline at end of file
diff --git a/tests/unit/extensions/sphinx/SphinxTestCase.php b/tests/unit/extensions/sphinx/SphinxTestCase.php
index 475ca69..a77f987 100644
--- a/tests/unit/extensions/sphinx/SphinxTestCase.php
+++ b/tests/unit/extensions/sphinx/SphinxTestCase.php
@@ -75,7 +75,7 @@ class SphinxTestCase extends TestCase
 		if (!$reset && $this->sphinx) {
 			return $this->sphinx;
 		}
-		$db = new \yii\db\Connection;
+		$db = new \yii\sphinx\Connection;
 		$db->dsn = $this->sphinxConfig['dsn'];
 		if (isset($this->sphinxConfig['username'])) {
 			$db->username = $this->sphinxConfig['username'];
@@ -98,4 +98,15 @@ class SphinxTestCase extends TestCase
 		$this->sphinx = $db;
 		return $db;
 	}
+
+	/**
+	 * Truncates the runtime index.
+	 * @param string $indexName index name.
+	 */
+	protected function truncateRuntimeIndex($indexName)
+	{
+		if ($this->sphinx) {
+			$this->sphinx->createCommand('TRUNCATE RTINDEX ' . $indexName)->execute();
+		}
+	}
 }
\ No newline at end of file