diff --git a/src/Query/BaseBuilder.php b/src/Query/BaseBuilder.php
index 57bc70a..890877a 100644
--- a/src/Query/BaseBuilder.php
+++ b/src/Query/BaseBuilder.php
@@ -137,9 +137,9 @@ abstract class BaseBuilder
     /**
      * Cluster name.
      *
-     * @var string
+     * @var string|null
      */
-    protected $onCluster;
+    protected $onCluster = null;
 
     /**
      * File representing values which should be inserted in table.
@@ -148,10 +148,6 @@ abstract class BaseBuilder
      */
     protected $values;
 
-    protected $clusterName;
-
-    protected $serverHostname;
-
     /**
      * Set columns for select statement.
      *
diff --git a/src/Query/Builder.php b/src/Query/Builder.php
index f9cab5a..3d38d34 100644
--- a/src/Query/Builder.php
+++ b/src/Query/Builder.php
@@ -26,6 +26,14 @@ public function __construct(Client $client)
         $this->grammar = new Grammar();
     }
 
+    /**
+     * @return \Tinderbox\Clickhouse\Client
+     */
+    public function getClient(): Client
+    {
+        return $this->client;
+    }
+
     /**
      * Perform compiled from builder sql query and getting result.
      *
@@ -176,9 +184,9 @@ public function delete()
      *
      * @return bool
      */
-    public function createTable($tableName, string $engine, array $structure)
+    public function createTable($tableName, string $engine, array $structure, ?string $extraOptions = null)
     {
-        return $this->client->writeOne($this->grammar->compileCreateTable($tableName, $engine, $structure));
+        return $this->client->writeOne($this->grammar->compileCreateTable($tableName, $engine, $structure, false, $this->getOnCluster(), $extraOptions));
     }
 
     /**
@@ -190,9 +198,9 @@ public function createTable($tableName, string $engine, array $structure)
      *
      * @return bool
      */
-    public function createTableIfNotExists($tableName, string $engine, array $structure)
+    public function createTableIfNotExists($tableName, string $engine, array $structure, ?string $extraOptions = null)
     {
-        return $this->client->writeOne($this->grammar->compileCreateTable($tableName, $engine, $structure, true));
+        return $this->client->writeOne($this->grammar->compileCreateTable($tableName, $engine, $structure, true, $this->getOnCluster(), $extraOptions));
     }
 
     public function dropTable($tableName)
diff --git a/src/Query/Column.php b/src/Query/Column.php
index fe4819a..45637f2 100644
--- a/src/Query/Column.php
+++ b/src/Query/Column.php
@@ -212,6 +212,24 @@ public function sum($columnName = null): self
         return $this;
     }
 
+    /**
+     * Apply max function to column.
+     *
+     * @param string|Expression|null $columnName
+     *
+     * @return $this
+     */
+    public function max($columnName = null): self
+    {
+        if ($columnName !== null) {
+            $this->name($columnName);
+        }
+
+        $this->functions[] = ['function' => 'max'];
+
+        return $this;
+    }
+
     /**
      * Apply round function to column.
      *
diff --git a/src/Query/Grammar.php b/src/Query/Grammar.php
index c922bdc..023abf4 100644
--- a/src/Query/Grammar.php
+++ b/src/Query/Grammar.php
@@ -140,37 +140,47 @@ public function compileInsert(BaseBuilder $query, $values): string
     /**
      * Compiles create table query.
      *
-     * @param        $tableName
-     * @param string $engine
-     * @param array  $structure
-     * @param bool   $ifNotExists
+     * @param             $tableName
+     * @param string      $engine
+     * @param array       $structure
+     * @param bool        $ifNotExists
+     * @param string|null $clusterName
+     * @param string|null $extraOptions
      *
      * @return string
      */
-    public function compileCreateTable($tableName, string $engine, array $structure, $ifNotExists = false): string
+    public function compileCreateTable($tableName, string $engine, array $structure, bool $ifNotExists = false, ?string $clusterName = null, ?string $extraOptions = null): string
     {
         if ($tableName instanceof Identifier) {
             $tableName = (string) $tableName;
         }
 
-        return 'CREATE TABLE '.($ifNotExists ? 'IF NOT EXISTS ' : '')."{$tableName} ({$this->compileTableStructure($structure)}) ENGINE = {$engine}";
+        $onCluster = $clusterName === null ? '' : "ON CLUSTER {$clusterName}";
+        $extraOptions = $extraOptions ?? '';
+
+        return 'CREATE TABLE '
+            .($ifNotExists ? 'IF NOT EXISTS ' : '')
+            .rtrim("{$tableName} {$onCluster} ({$this->compileTableStructure($structure)}) ENGINE = {$engine} {$extraOptions}");
     }
 
     /**
      * Compiles drop table query.
      *
-     * @param      $tableName
-     * @param bool $ifExists
+     * @param             $tableName
+     * @param bool        $ifExists
+     * @param string|null $clusterName
      *
      * @return string
      */
-    public function compileDropTable($tableName, $ifExists = false): string
+    public function compileDropTable($tableName, bool $ifExists = false, ?string $clusterName = null): string
     {
         if ($tableName instanceof Identifier) {
             $tableName = (string) $tableName;
         }
 
-        return 'DROP TABLE '.($ifExists ? 'IF EXISTS ' : '')."{$tableName}";
+        $onCluster = $clusterName === null ? '' : "ON CLUSTER {$clusterName}";
+
+        return trim('DROP TABLE '.($ifExists ? 'IF EXISTS ' : '')."{$tableName} {$onCluster}");
     }
 
     /**
diff --git a/src/Query/Traits/ColumnCompiler.php b/src/Query/Traits/ColumnCompiler.php
index 90997c4..202c213 100644
--- a/src/Query/Traits/ColumnCompiler.php
+++ b/src/Query/Traits/ColumnCompiler.php
@@ -112,6 +112,18 @@ private function sum($column)
         return "sum({$column})";
     }
 
+    /**
+     * Compiles max function on column.
+     *
+     * @param $column
+     *
+     * @return string
+     */
+    private function max($column)
+    {
+        return "max({$column})";
+    }
+
     /**
      * Compiles round function on column.
      *
diff --git a/tests/ColumnTest.php b/tests/ColumnTest.php
index 5b31290..89d92fa 100644
--- a/tests/ColumnTest.php
+++ b/tests/ColumnTest.php
@@ -102,6 +102,21 @@ public function testSum()
         ], $functions);
     }
 
+    public function testMax()
+    {
+        $column = new Column($this->getBuilder());
+        $column->name('column');
+        $column->max();
+
+        $functions = $column->getFunctions();
+
+        $this->assertEquals([
+            [
+                'function' => 'max',
+            ],
+        ], $functions);
+    }
+
     public function testRound()
     {
         $column = new Column($this->getBuilder());
diff --git a/tests/GrammarTest.php b/tests/GrammarTest.php
index 8dcbeab..4616f88 100644
--- a/tests/GrammarTest.php
+++ b/tests/GrammarTest.php
@@ -409,4 +409,29 @@ public function testCompileDelete()
 
         $grammar->compileDelete($builder);
     }
+
+    public function testCompileCreateTable()
+    {
+        $grammar = new Grammar();
+
+        $sql = $grammar->compileCreateTable('table', 'MergeTree', ['id' => 'UInt64'], true, 'test');
+        $this->assertEquals('CREATE TABLE IF NOT EXISTS table ON CLUSTER test (id UInt64) ENGINE = MergeTree', $sql);
+
+        $sql = $grammar->compileCreateTable('table', 'MergeTree', ['id' => 'UInt64'], false, 'test');
+        $this->assertEquals('CREATE TABLE table ON CLUSTER test (id UInt64) ENGINE = MergeTree', $sql);
+
+        $sql = $grammar->compileCreateTable('table', 'MergeTree', ['id' => 'UInt64'], false);
+        $this->assertEquals('CREATE TABLE table  (id UInt64) ENGINE = MergeTree', $sql);
+    }
+
+    public function testCompileDropTable()
+    {
+        $grammar = new Grammar();
+
+        $sql = $grammar->compileDropTable('table', true, 'test');
+        $this->assertEquals('DROP TABLE IF EXISTS table ON CLUSTER test', $sql);
+
+        $sql = $grammar->compileDropTable('table', false);
+        $this->assertEquals('DROP TABLE table', $sql);
+    }
 }