diff --git a/extensions/sphinx/ActiveRecord.php b/extensions/sphinx/ActiveRecord.php
index 9a0593b5b7..4c743d0f91 100644
--- a/extensions/sphinx/ActiveRecord.php
+++ b/extensions/sphinx/ActiveRecord.php
@@ -621,9 +621,9 @@ abstract class ActiveRecord extends BaseActiveRecord
             if (isset($columns[$name])) {
                 if ($columns[$name]->isMva) {
                     $mvaValue = explode(',', $value);
-                    $row[$name] = array_map(array($columns[$name], 'typecast'), $mvaValue);
+                    $row[$name] = array_map(array($columns[$name], 'phpTypecast'), $mvaValue);
                 } else {
-                    $row[$name] = $columns[$name]->typecast($value);
+                    $row[$name] = $columns[$name]->phpTypecast($value);
                 }
             }
         }
diff --git a/extensions/sphinx/CHANGELOG.md b/extensions/sphinx/CHANGELOG.md
index df9dd354b6..8a4d45fd80 100644
--- a/extensions/sphinx/CHANGELOG.md
+++ b/extensions/sphinx/CHANGELOG.md
@@ -8,6 +8,7 @@ Yii Framework 2 sphinx extension Change Log
 - Bug #4018: AR relation eager loading does not work with db models (klimov-paul)
 - Enh: Added support for using sub-queries when building a DB query with `IN` condition (qiangxue)
 - Enh #3520: Added `unlinkAll()`-method to active record to remove all records of a model relation (NmDimas, samdark, cebe)
+- Chg #2287: Split `yii\sphinx\ColumnSchema::typecast()` into two methods `phpTypecast()` and `dbTypecast()` to allow specifying PDO type explicitly (cebe)
 
 
 2.0.0-beta April 13, 2014
diff --git a/extensions/sphinx/ColumnSchema.php b/extensions/sphinx/ColumnSchema.php
index a30c19864a..240d41fe7c 100644
--- a/extensions/sphinx/ColumnSchema.php
+++ b/extensions/sphinx/ColumnSchema.php
@@ -55,12 +55,12 @@ class ColumnSchema extends Object
     public $isMva;
 
     /**
-     * Converts the input value according to [[phpType]].
+     * Converts the input value according to [[phpType]] after retrieval from the database.
      * If the value is null or an [[Expression]], it will not be converted.
      * @param mixed $value input value
      * @return mixed converted value
      */
-    public function typecast($value)
+    public function phpTypecast($value)
     {
         if ($value === null || gettype($value) === $this->phpType || $value instanceof Expression) {
             return $value;
@@ -70,13 +70,29 @@ class ColumnSchema extends Object
         }
         switch ($this->phpType) {
             case 'string':
-                return (string) $value;
+                return is_resource($value) ? $value : (string) $value;
             case 'integer':
                 return (integer) $value;
             case 'boolean':
                 return (boolean) $value;
+            case 'double':
+                return (double) $value;
         }
 
         return $value;
     }
+
+    /**
+     * Converts the input value according to [[type]] and [[dbType]] for use in a db query.
+     * If the value is null or an [[Expression]], it will not be converted.
+     * @param mixed $value input value
+     * @return mixed converted value. This may also be an array containing the value as the first element
+     * and the PDO type as the second element.
+     */
+    public function dbTypecast($value)
+    {
+        // the default implementation does the same as casting for PHP but it should be possible
+        // to override this with annotation of explicit PDO type.
+        return $this->phpTypecast($value);
+    }
 }
diff --git a/extensions/sphinx/QueryBuilder.php b/extensions/sphinx/QueryBuilder.php
index bdf5399330..48c7d553fc 100644
--- a/extensions/sphinx/QueryBuilder.php
+++ b/extensions/sphinx/QueryBuilder.php
@@ -973,14 +973,14 @@ class QueryBuilder extends Object
                 } else {
                     $phName = self::PARAM_PREFIX . count($params);
                     $lineParts[] = $phName;
-                    $params[$phName] = (isset($columnSchema)) ? $columnSchema->typecast($subValue) : $subValue;
+                    $params[$phName] = (isset($columnSchema)) ? $columnSchema->dbTypecast($subValue) : $subValue;
                 }
             }
 
             return '(' . implode(',', $lineParts) . ')';
         } else {
             $phName = self::PARAM_PREFIX . count($params);
-            $params[$phName] = (isset($columnSchema)) ? $columnSchema->typecast($value) : $value;
+            $params[$phName] = (isset($columnSchema)) ? $columnSchema->dbTypecast($value) : $value;
 
             return $phName;
         }
diff --git a/framework/CHANGELOG.md b/framework/CHANGELOG.md
index ef912a5925..82884be721 100644
--- a/framework/CHANGELOG.md
+++ b/framework/CHANGELOG.md
@@ -131,6 +131,7 @@ Yii Framework 2 Change Log
 - Enh: Improved `yii\helpers\Inflector::slug` to support more cases for Russian, Hebrew and special characters (samdark)
 - Enh #3926: `yii\widgets\Breadcrumbs::$links`. Allows individual link to have its own `template` (creocoder, umneeq)
 - Enh #4028: Added ability to `yii\widgets\Menu` to encode each item's label separately (creocoder, umneeq)
+- Chg #2287: Split `yii\db\ColumnSchema::typecast()` into two methods `phpTypecast()` and `dbTypecast()` to allow specifying PDO type explicitly (cebe)
 - Chg #2898: `yii\console\controllers\AssetController` is now using hashes instead of timestamps (samdark)
 - Chg #2913: RBAC `DbManager` is now initialized via migration (samdark)
 - Chg #3036: Upgraded Twitter Bootstrap to 3.1.x (qiangxue)
diff --git a/framework/db/ActiveRecord.php b/framework/db/ActiveRecord.php
index c511b653c6..8726a2b4b0 100644
--- a/framework/db/ActiveRecord.php
+++ b/framework/db/ActiveRecord.php
@@ -357,7 +357,7 @@ class ActiveRecord extends BaseActiveRecord
         $columns = static::getTableSchema()->columns;
         foreach ($row as $name => $value) {
             if (isset($columns[$name])) {
-                $row[$name] = $columns[$name]->typecast($value);
+                $row[$name] = $columns[$name]->phpTypecast($value);
             }
         }
         parent::populateRecord($record, $row);
@@ -454,7 +454,7 @@ class ActiveRecord extends BaseActiveRecord
         if ($table->sequenceName !== null) {
             foreach ($table->primaryKey as $name) {
                 if ($this->getAttribute($name) === null) {
-                    $id = $table->columns[$name]->typecast($db->getLastInsertID($table->sequenceName));
+                    $id = $table->columns[$name]->phpTypecast($db->getLastInsertID($table->sequenceName));
                     $this->setAttribute($name, $id);
                     $values[$name] = $id;
                     break;
diff --git a/framework/db/ColumnSchema.php b/framework/db/ColumnSchema.php
index 64dd65d22f..b094103bcb 100644
--- a/framework/db/ColumnSchema.php
+++ b/framework/db/ColumnSchema.php
@@ -33,7 +33,7 @@ class ColumnSchema extends Object
     public $type;
     /**
      * @var string the PHP type of this column. Possible PHP types include:
-     * string, boolean, integer, double.
+     * `string`, `boolean`, `integer`, `double`.
      */
     public $phpType;
     /**
@@ -79,12 +79,12 @@ class ColumnSchema extends Object
     public $comment;
 
     /**
-     * Converts the input value according to [[phpType]].
+     * Converts the input value according to [[phpType]] after retrieval from the database.
      * If the value is null or an [[Expression]], it will not be converted.
      * @param mixed $value input value
      * @return mixed converted value
      */
-    public function typecast($value)
+    public function phpTypecast($value)
     {
         if ($value === '' && $this->type !== Schema::TYPE_TEXT && $this->type !== Schema::TYPE_STRING && $this->type !== Schema::TYPE_BINARY) {
             return null;
@@ -106,4 +106,18 @@ class ColumnSchema extends Object
 
         return $value;
     }
+
+    /**
+     * Converts the input value according to [[type]] and [[dbType]] for use in a db query.
+     * If the value is null or an [[Expression]], it will not be converted.
+     * @param mixed $value input value
+     * @return mixed converted value. This may also be an array containing the value as the first element
+     * and the PDO type as the second element.
+     */
+    public function dbTypecast($value)
+    {
+        // the default implementation does the same as casting for PHP but it should be possible
+        // to override this with annotation of explicit PDO type.
+        return $this->phpTypecast($value);
+    }
 }
diff --git a/framework/db/QueryBuilder.php b/framework/db/QueryBuilder.php
index da1c2707b9..df174420dc 100644
--- a/framework/db/QueryBuilder.php
+++ b/framework/db/QueryBuilder.php
@@ -147,7 +147,7 @@ class QueryBuilder extends \yii\base\Object
             } else {
                 $phName = self::PARAM_PREFIX . count($params);
                 $placeholders[] = $phName;
-                $params[$phName] = !is_array($value) && isset($columnSchemas[$name]) ? $columnSchemas[$name]->typecast($value) : $value;
+                $params[$phName] = !is_array($value) && isset($columnSchemas[$name]) ? $columnSchemas[$name]->dbTypecast($value) : $value;
             }
         }
 
@@ -188,7 +188,7 @@ class QueryBuilder extends \yii\base\Object
             $vs = [];
             foreach ($row as $i => $value) {
                 if (!is_array($value) && isset($columnSchemas[$columns[$i]])) {
-                    $value = $columnSchemas[$columns[$i]]->typecast($value);
+                    $value = $columnSchemas[$columns[$i]]->dbTypecast($value);
                 }
                 if (is_string($value)) {
                     $value = $this->db->quoteValue($value);
@@ -247,7 +247,7 @@ class QueryBuilder extends \yii\base\Object
             } else {
                 $phName = self::PARAM_PREFIX . count($params);
                 $lines[] = $this->db->quoteColumnName($name) . '=' . $phName;
-                $params[$phName] = !is_array($value) && isset($columnSchemas[$name]) ? $columnSchemas[$name]->typecast($value) : $value;
+                $params[$phName] = !is_array($value) && isset($columnSchemas[$name]) ? $columnSchemas[$name]->dbTypecast($value) : $value;
             }
         }
 
diff --git a/framework/db/cubrid/Schema.php b/framework/db/cubrid/Schema.php
index 235fb6f4e1..e42dfaba74 100644
--- a/framework/db/cubrid/Schema.php
+++ b/framework/db/cubrid/Schema.php
@@ -251,7 +251,7 @@ class Schema extends \yii\db\Schema
         } elseif (isset($type) && $type === 'bit') {
             $column->defaultValue = hexdec(trim($info['Default'],'X\''));
         } else {
-            $column->defaultValue = $column->typecast($info['Default']);
+            $column->defaultValue = $column->phpTypecast($info['Default']);
         }
 
         return $column;
diff --git a/framework/db/mssql/Schema.php b/framework/db/mssql/Schema.php
index adc1308f2c..5a72595921 100644
--- a/framework/db/mssql/Schema.php
+++ b/framework/db/mssql/Schema.php
@@ -222,7 +222,7 @@ class Schema extends \yii\db\Schema
             $info['column_default'] = null;
         }
         if (!$column->isPrimaryKey && ($column->type !== 'timestamp' || $info['column_default'] !== 'CURRENT_TIMESTAMP')) {
-            $column->defaultValue = $column->typecast($info['column_default']);
+            $column->defaultValue = $column->phpTypecast($info['column_default']);
         }
 
         return $column;
diff --git a/framework/db/mysql/Schema.php b/framework/db/mysql/Schema.php
index 9becb4de26..56d072ce54 100644
--- a/framework/db/mysql/Schema.php
+++ b/framework/db/mysql/Schema.php
@@ -177,7 +177,7 @@ class Schema extends \yii\db\Schema
             } elseif (isset($type) && $type === 'bit') {
                 $column->defaultValue = bindec(trim($info['Default'],'b\''));
             } else {
-                $column->defaultValue = $column->typecast($info['Default']);
+                $column->defaultValue = $column->phpTypecast($info['Default']);
             }
         }
 
diff --git a/framework/db/oci/Schema.php b/framework/db/oci/Schema.php
index 7de0709990..1fde5ca2ff 100644
--- a/framework/db/oci/Schema.php
+++ b/framework/db/oci/Schema.php
@@ -223,7 +223,7 @@ EOD;
             if (stripos($column['DATA_DEFAULT'], 'timestamp') !== false) {
                 $c->defaultValue = null;
             } else {
-                $c->defaultValue = $c->typecast($column['DATA_DEFAULT']);
+                $c->defaultValue = $c->phpTypecast($column['DATA_DEFAULT']);
             }
         }
 
diff --git a/framework/db/pgsql/Schema.php b/framework/db/pgsql/Schema.php
index 5af73c6463..8db814ad74 100644
--- a/framework/db/pgsql/Schema.php
+++ b/framework/db/pgsql/Schema.php
@@ -416,9 +416,9 @@ SQL;
                 } elseif (preg_match("/^'(.*?)'::/", $column->defaultValue, $matches)) {
                     $column->defaultValue = $matches[1];
                 } elseif (preg_match("/^(.*?)::/", $column->defaultValue, $matches)) {
-                    $column->defaultValue = $column->typecast($matches[1]);
+                    $column->defaultValue = $column->phpTypecast($matches[1]);
                 } else {
-                    $column->defaultValue = $column->typecast($column->defaultValue);
+                    $column->defaultValue = $column->phpTypecast($column->defaultValue);
                 }
             }
         }
diff --git a/framework/db/sqlite/QueryBuilder.php b/framework/db/sqlite/QueryBuilder.php
index d97dbc9b05..34ebb523ae 100644
--- a/framework/db/sqlite/QueryBuilder.php
+++ b/framework/db/sqlite/QueryBuilder.php
@@ -80,7 +80,7 @@ class QueryBuilder extends \yii\db\QueryBuilder
             $vs = [];
             foreach ($row as $i => $value) {
                 if (!is_array($value) && isset($columnSchemas[$columns[$i]])) {
-                    $value = $columnSchemas[$columns[$i]]->typecast($value);
+                    $value = $columnSchemas[$columns[$i]]->dbTypecast($value);
                 }
                 if (is_string($value)) {
                     $value = $this->db->quoteValue($value);
diff --git a/framework/db/sqlite/Schema.php b/framework/db/sqlite/Schema.php
index e915d257e9..c7e13330db 100644
--- a/framework/db/sqlite/Schema.php
+++ b/framework/db/sqlite/Schema.php
@@ -252,7 +252,7 @@ class Schema extends \yii\db\Schema
                 $column->defaultValue = new Expression('CURRENT_TIMESTAMP');
             } else {
                 $value = trim($info['dflt_value'], "'\"");
-                $column->defaultValue = $column->typecast($value);
+                $column->defaultValue = $column->phpTypecast($value);
             }
         }
 
diff --git a/tests/unit/extensions/sphinx/ColumnSchemaTest.php b/tests/unit/extensions/sphinx/ColumnSchemaTest.php
index 88965fc64b..fb0e67a3f2 100644
--- a/tests/unit/extensions/sphinx/ColumnSchemaTest.php
+++ b/tests/unit/extensions/sphinx/ColumnSchemaTest.php
@@ -50,6 +50,6 @@ class ColumnSchemaTest extends SphinxTestCase
         $columnSchema = new ColumnSchema();
         $columnSchema->type = $type;
         $columnSchema->phpType = $phpType;
-        $this->assertEquals($expectedResult, $columnSchema->typecast($value));
+        $this->assertEquals($expectedResult, $columnSchema->phpTypecast($value));
     }
 }