diff --git a/UPGRADE.md b/UPGRADE.md
index 0cb2ad18500..4c4b3fc0eda 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -1,5 +1,13 @@
 # Upgrade to 3.0
 
+## BC BREAK: Dropped support for `FetchMode::CUSTOM_OBJECT` and `::STANDARD_OBJECT`
+
+Instead of fetching an object, fetch an array and map it to an object of the desired class.
+
+## BC BREAK: Dropped support for the `$columnIndex` argument in `ResultStatement::fetchColumn()`, other `ResultStatement::fetch*()` methods invoked with `FetchMode::COLUMN` and `Connection::fetchColumn()`.
+
+In order to fetch a column with an index other than `0`, use `FetchMode::NUMERIC` and the array element with the corresponding index.
+
 ## BC BREAK: Removed `EchoSQLLogger`
 
 `EchoSQLLogger` is no longer available as part of the package.
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index 867cc3bdc29..bd006f20217 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -98,12 +98,6 @@ parameters:
                 - %currentWorkingDirectory%/src/Query/QueryBuilder.php
                 - %currentWorkingDirectory%/src/Schema/*SchemaManager.php
 
-        # FetchMode::CUSTOM_OBJECT requires variable property access
-        -
-            message: '~^Variable property access on object\.~'
-            paths:
-                - %currentWorkingDirectory%/src/Driver/*/*Statement.php
-
         # Some APIs use variable method calls internally
         -
             message: '~^Variable method call on .*~'
diff --git a/src/Cache/ArrayStatement.php b/src/Cache/ArrayStatement.php
index 38e337e800a..29c76cd3fe7 100644
--- a/src/Cache/ArrayStatement.php
+++ b/src/Cache/ArrayStatement.php
@@ -60,12 +60,8 @@ public function columnCount()
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode, ...$args)
+    public function setFetchMode($fetchMode)
     {
-        if (count($args) > 0) {
-            throw new InvalidArgumentException('Caching layer does not support 2nd/3rd argument to setFetchMode()');
-        }
-
         $this->defaultFetchMode = $fetchMode;
 
         return true;
@@ -84,7 +80,7 @@ public function getIterator()
     /**
      * {@inheritdoc}
      */
-    public function fetch($fetchMode = null, ...$args)
+    public function fetch($fetchMode = null)
     {
         if (! isset($this->data[$this->num])) {
             return false;
@@ -115,10 +111,10 @@ public function fetch($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchAll($fetchMode = null, ...$args)
+    public function fetchAll($fetchMode = null)
     {
         $rows = [];
-        while ($row = $this->fetch($fetchMode, ...$args)) {
+        while ($row = $this->fetch($fetchMode)) {
             $rows[] = $row;
         }
 
@@ -128,11 +124,11 @@ public function fetchAll($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchColumn($columnIndex = 0)
+    public function fetchColumn()
     {
         $row = $this->fetch(FetchMode::NUMERIC);
 
         // TODO: verify that return false is the correct behavior
-        return $row[$columnIndex] ?? false;
+        return $row[0] ?? false;
     }
 }
diff --git a/src/Cache/ResultCacheStatement.php b/src/Cache/ResultCacheStatement.php
index 36f01880423..58178ce6db6 100644
--- a/src/Cache/ResultCacheStatement.php
+++ b/src/Cache/ResultCacheStatement.php
@@ -104,7 +104,7 @@ public function columnCount()
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode, ...$args)
+    public function setFetchMode($fetchMode)
     {
         $this->defaultFetchMode = $fetchMode;
 
@@ -124,7 +124,7 @@ public function getIterator()
     /**
      * {@inheritdoc}
      */
-    public function fetch($fetchMode = null, ...$args)
+    public function fetch($fetchMode = null)
     {
         if ($this->data === null) {
             $this->data = [];
@@ -164,9 +164,9 @@ public function fetch($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchAll($fetchMode = null, ...$args)
+    public function fetchAll($fetchMode = null)
     {
-        $data = $this->statement->fetchAll($fetchMode, ...$args);
+        $data = $this->statement->fetchAll($fetchMode);
 
         if ($fetchMode === FetchMode::COLUMN) {
             foreach ($data as $key => $value) {
@@ -183,12 +183,12 @@ public function fetchAll($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchColumn($columnIndex = 0)
+    public function fetchColumn()
     {
         $row = $this->fetch(FetchMode::NUMERIC);
 
         // TODO: verify that return false is the correct behavior
-        return $row[$columnIndex] ?? false;
+        return $row[0] ?? false;
     }
 
     /**
diff --git a/src/Connection.php b/src/Connection.php
index cca1716625f..bb0625b9de1 100644
--- a/src/Connection.php
+++ b/src/Connection.php
@@ -570,16 +570,15 @@ public function fetchArray($statement, array $params = [], array $types = [])
      *
      * @param string         $statement The SQL query to be executed.
      * @param mixed[]        $params    The prepared statement params.
-     * @param int            $column    The 0-indexed column number to retrieve.
      * @param int[]|string[] $types     The query parameter types.
      *
      * @return mixed|false False is returned if no rows are found.
      *
      * @throws DBALException
      */
-    public function fetchColumn($statement, array $params = [], $column = 0, array $types = [])
+    public function fetchColumn($statement, array $params = [], array $types = [])
     {
-        return $this->executeQuery($statement, $params, $types)->fetchColumn($column);
+        return $this->executeQuery($statement, $params, $types)->fetchColumn();
     }
 
     /**
diff --git a/src/Driver/IBMDB2/DB2Statement.php b/src/Driver/IBMDB2/DB2Statement.php
index 6c8c5cb3b7e..49282e0bb0e 100644
--- a/src/Driver/IBMDB2/DB2Statement.php
+++ b/src/Driver/IBMDB2/DB2Statement.php
@@ -7,25 +7,17 @@
 use Doctrine\DBAL\FetchMode;
 use Doctrine\DBAL\ParameterType;
 use IteratorAggregate;
-use ReflectionClass;
-use ReflectionObject;
-use ReflectionProperty;
-use stdClass;
-use const CASE_LOWER;
 use const DB2_BINARY;
 use const DB2_CHAR;
 use const DB2_LONG;
 use const DB2_PARAM_FILE;
 use const DB2_PARAM_IN;
-use function array_change_key_case;
 use function assert;
-use function count;
 use function db2_bind_param;
 use function db2_execute;
 use function db2_fetch_array;
 use function db2_fetch_assoc;
 use function db2_fetch_both;
-use function db2_fetch_object;
 use function db2_free_result;
 use function db2_num_fields;
 use function db2_num_rows;
@@ -34,16 +26,11 @@
 use function error_get_last;
 use function fclose;
 use function fwrite;
-use function gettype;
 use function is_int;
-use function is_object;
 use function is_resource;
-use function is_string;
 use function ksort;
-use function sprintf;
 use function stream_copy_to_stream;
 use function stream_get_meta_data;
-use function strtolower;
 use function tmpfile;
 
 class DB2Statement implements IteratorAggregate, Statement
@@ -62,12 +49,6 @@ class DB2Statement implements IteratorAggregate, Statement
      */
     private $lobs = [];
 
-    /** @var string Name of the default class to instantiate when fetching class instances. */
-    private $defaultFetchClass = '\stdClass';
-
-    /** @var mixed[] Constructor arguments for the default class to instantiate when fetching class instances. */
-    private $defaultFetchClassCtorArgs = [];
-
     /** @var int */
     private $defaultFetchMode = FetchMode::MIXED;
 
@@ -237,18 +218,10 @@ public function execute($params = null)
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode, ...$args)
+    public function setFetchMode($fetchMode)
     {
         $this->defaultFetchMode = $fetchMode;
 
-        if (isset($args[0])) {
-            $this->defaultFetchClass = $args[0];
-        }
-
-        if (isset($args[1])) {
-            $this->defaultFetchClassCtorArgs = (array) $args[1];
-        }
-
         return true;
     }
 
@@ -263,7 +236,7 @@ public function getIterator()
     /**
      * {@inheritdoc}
      */
-    public function fetch($fetchMode = null, ...$args)
+    public function fetch($fetchMode = null)
     {
         // do not try fetching from the statement if it's not expected to contain result
         // in order to prevent exceptional situation
@@ -282,29 +255,9 @@ public function fetch($fetchMode = null, ...$args)
             case FetchMode::ASSOCIATIVE:
                 return db2_fetch_assoc($this->stmt);
 
-            case FetchMode::CUSTOM_OBJECT:
-                $className = $this->defaultFetchClass;
-                $ctorArgs  = $this->defaultFetchClassCtorArgs;
-
-                if (count($args) > 0) {
-                    $className = $args[0];
-                    $ctorArgs  = $args[1] ?? [];
-                }
-
-                $result = db2_fetch_object($this->stmt);
-
-                if ($result instanceof stdClass) {
-                    $result = $this->castObject($result, $className, $ctorArgs);
-                }
-
-                return $result;
-
             case FetchMode::NUMERIC:
                 return db2_fetch_array($this->stmt);
 
-            case FetchMode::STANDARD_OBJECT:
-                return db2_fetch_object($this->stmt);
-
             default:
                 throw new DB2Exception('Given Fetch-Style ' . $fetchMode . ' is not supported.');
         }
@@ -313,16 +266,11 @@ public function fetch($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchAll($fetchMode = null, ...$args)
+    public function fetchAll($fetchMode = null)
     {
         $rows = [];
 
         switch ($fetchMode) {
-            case FetchMode::CUSTOM_OBJECT:
-                while (($row = $this->fetch($fetchMode, ...$args)) !== false) {
-                    $rows[] = $row;
-                }
-                break;
             case FetchMode::COLUMN:
                 while (($row = $this->fetchColumn()) !== false) {
                     $rows[] = $row;
@@ -340,7 +288,7 @@ public function fetchAll($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchColumn($columnIndex = 0)
+    public function fetchColumn()
     {
         $row = $this->fetch(FetchMode::NUMERIC);
 
@@ -348,7 +296,7 @@ public function fetchColumn($columnIndex = 0)
             return false;
         }
 
-        return $row[$columnIndex] ?? null;
+        return $row[0] ?? null;
     }
 
     /**
@@ -359,71 +307,6 @@ public function rowCount() : int
         return @db2_num_rows($this->stmt);
     }
 
-    /**
-     * Casts a stdClass object to the given class name mapping its' properties.
-     *
-     * @param stdClass      $sourceObject     Object to cast from.
-     * @param string|object $destinationClass Name of the class or class instance to cast to.
-     * @param mixed[]       $ctorArgs         Arguments to use for constructing the destination class instance.
-     *
-     * @return object
-     *
-     * @throws DB2Exception
-     */
-    private function castObject(stdClass $sourceObject, $destinationClass, array $ctorArgs = [])
-    {
-        if (! is_string($destinationClass)) {
-            if (! is_object($destinationClass)) {
-                throw new DB2Exception(sprintf(
-                    'Destination class has to be of type string or object, %s given.',
-                    gettype($destinationClass)
-                ));
-            }
-        } else {
-            $destinationClass = new ReflectionClass($destinationClass);
-            $destinationClass = $destinationClass->newInstanceArgs($ctorArgs);
-        }
-
-        $sourceReflection           = new ReflectionObject($sourceObject);
-        $destinationClassReflection = new ReflectionObject($destinationClass);
-        /** @var ReflectionProperty[] $destinationProperties */
-        $destinationProperties = array_change_key_case($destinationClassReflection->getProperties(), CASE_LOWER);
-
-        foreach ($sourceReflection->getProperties() as $sourceProperty) {
-            $sourceProperty->setAccessible(true);
-
-            $name  = $sourceProperty->getName();
-            $value = $sourceProperty->getValue($sourceObject);
-
-            // Try to find a case-matching property.
-            if ($destinationClassReflection->hasProperty($name)) {
-                $destinationProperty = $destinationClassReflection->getProperty($name);
-
-                $destinationProperty->setAccessible(true);
-                $destinationProperty->setValue($destinationClass, $value);
-
-                continue;
-            }
-
-            $name = strtolower($name);
-
-            // Try to find a property without matching case.
-            // Fallback for the driver returning either all uppercase or all lowercase column names.
-            if (isset($destinationProperties[$name])) {
-                $destinationProperty = $destinationProperties[$name];
-
-                $destinationProperty->setAccessible(true);
-                $destinationProperty->setValue($destinationClass, $value);
-
-                continue;
-            }
-
-            $destinationClass->$name = $value;
-        }
-
-        return $destinationClass;
-    }
-
     /**
      * @return resource
      *
diff --git a/src/Driver/Mysqli/MysqliStatement.php b/src/Driver/Mysqli/MysqliStatement.php
index f16025847a2..4795b291753 100644
--- a/src/Driver/Mysqli/MysqliStatement.php
+++ b/src/Driver/Mysqli/MysqliStatement.php
@@ -306,7 +306,7 @@ private function _fetch()
     /**
      * {@inheritdoc}
      */
-    public function fetch($fetchMode = null, ...$args)
+    public function fetch($fetchMode = null)
     {
         // do not try fetching from the statement if it's not expected to contain result
         // in order to prevent exceptional situation
@@ -345,9 +345,6 @@ public function fetch($fetchMode = null, ...$args)
             case FetchMode::MIXED:
                 return $assoc + $values;
 
-            case FetchMode::STANDARD_OBJECT:
-                return (object) $assoc;
-
             default:
                 throw new MysqliException(sprintf("Unknown fetch type '%s'", $fetchMode));
         }
@@ -356,7 +353,7 @@ public function fetch($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchAll($fetchMode = null, ...$args)
+    public function fetchAll($fetchMode = null)
     {
         $fetchMode = $fetchMode ?? $this->_defaultFetchMode;
 
@@ -378,7 +375,7 @@ public function fetchAll($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchColumn($columnIndex = 0)
+    public function fetchColumn()
     {
         $row = $this->fetch(FetchMode::NUMERIC);
 
@@ -386,7 +383,7 @@ public function fetchColumn($columnIndex = 0)
             return false;
         }
 
-        return $row[$columnIndex] ?? null;
+        return $row[0] ?? null;
     }
 
     /**
@@ -439,7 +436,7 @@ public function columnCount()
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode, ...$args)
+    public function setFetchMode($fetchMode)
     {
         $this->_defaultFetchMode = $fetchMode;
 
diff --git a/src/Driver/OCI8/OCI8Statement.php b/src/Driver/OCI8/OCI8Statement.php
index f8a030395ff..d74fb3a8a85 100644
--- a/src/Driver/OCI8/OCI8Statement.php
+++ b/src/Driver/OCI8/OCI8Statement.php
@@ -33,7 +33,6 @@
 use function oci_execute;
 use function oci_fetch_all;
 use function oci_fetch_array;
-use function oci_fetch_object;
 use function oci_new_descriptor;
 use function oci_num_fields;
 use function oci_num_rows;
@@ -411,7 +410,7 @@ public function execute($params = null)
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode, ...$args)
+    public function setFetchMode($fetchMode)
     {
         $this->_defaultFetchMode = $fetchMode;
 
@@ -429,7 +428,7 @@ public function getIterator()
     /**
      * {@inheritdoc}
      */
-    public function fetch($fetchMode = null, ...$args)
+    public function fetch($fetchMode = null)
     {
         // do not try fetching from the statement if it's not expected to contain result
         // in order to prevent exceptional situation
@@ -443,10 +442,6 @@ public function fetch($fetchMode = null, ...$args)
             return $this->fetchColumn();
         }
 
-        if ($fetchMode === FetchMode::STANDARD_OBJECT) {
-            return oci_fetch_object($this->_sth);
-        }
-
         if (! isset(self::$fetchModeMap[$fetchMode])) {
             throw new InvalidArgumentException('Invalid fetch style: ' . $fetchMode);
         }
@@ -460,20 +455,12 @@ public function fetch($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchAll($fetchMode = null, ...$args)
+    public function fetchAll($fetchMode = null)
     {
         $fetchMode = $fetchMode ?? $this->_defaultFetchMode;
 
         $result = [];
 
-        if ($fetchMode === FetchMode::STANDARD_OBJECT) {
-            while ($row = $this->fetch($fetchMode)) {
-                $result[] = $row;
-            }
-
-            return $result;
-        }
-
         if (! isset(self::$fetchModeMap[$fetchMode])) {
             throw new InvalidArgumentException('Invalid fetch style: ' . $fetchMode);
         }
@@ -514,7 +501,7 @@ public function fetchAll($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchColumn($columnIndex = 0)
+    public function fetchColumn()
     {
         // do not try fetching from the statement if it's not expected to contain result
         // in order to prevent exceptional situation
@@ -528,7 +515,7 @@ public function fetchColumn($columnIndex = 0)
             return false;
         }
 
-        return $row[$columnIndex] ?? null;
+        return $row[0] ?? null;
     }
 
     /**
diff --git a/src/Driver/PDOStatement.php b/src/Driver/PDOStatement.php
index 876f74106eb..9dae60bdbaa 100644
--- a/src/Driver/PDOStatement.php
+++ b/src/Driver/PDOStatement.php
@@ -28,12 +28,10 @@ class PDOStatement implements IteratorAggregate, Statement
     ];
 
     private const FETCH_MODE_MAP = [
-        FetchMode::ASSOCIATIVE     => PDO::FETCH_ASSOC,
-        FetchMode::NUMERIC         => PDO::FETCH_NUM,
-        FetchMode::MIXED           => PDO::FETCH_BOTH,
-        FetchMode::STANDARD_OBJECT => PDO::FETCH_OBJ,
-        FetchMode::COLUMN          => PDO::FETCH_COLUMN,
-        FetchMode::CUSTOM_OBJECT   => PDO::FETCH_CLASS,
+        FetchMode::ASSOCIATIVE => PDO::FETCH_ASSOC,
+        FetchMode::NUMERIC     => PDO::FETCH_NUM,
+        FetchMode::MIXED       => PDO::FETCH_BOTH,
+        FetchMode::COLUMN      => PDO::FETCH_COLUMN,
     ];
 
     /** @var \PDOStatement */
@@ -47,12 +45,12 @@ public function __construct(\PDOStatement $stmt)
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode, ...$args)
+    public function setFetchMode($fetchMode)
     {
         $fetchMode = $this->convertFetchMode($fetchMode);
 
         try {
-            return $this->stmt->setFetchMode($fetchMode, ...$args);
+            return $this->stmt->setFetchMode($fetchMode);
         } catch (\PDOException $exception) {
             throw new PDOException($exception);
         }
@@ -141,7 +139,7 @@ public function rowCount() : int
     /**
      * {@inheritdoc}
      */
-    public function fetch($fetchMode = null, ...$args)
+    public function fetch($fetchMode = null)
     {
         try {
             if ($fetchMode === null) {
@@ -149,8 +147,7 @@ public function fetch($fetchMode = null, ...$args)
             }
 
             return $this->stmt->fetch(
-                $this->convertFetchMode($fetchMode),
-                ...$args
+                $this->convertFetchMode($fetchMode)
             );
         } catch (\PDOException $exception) {
             throw new PDOException($exception);
@@ -160,15 +157,14 @@ public function fetch($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchAll($fetchMode = null, ...$args)
+    public function fetchAll($fetchMode = null)
     {
         try {
             if ($fetchMode === null) {
                 $data = $this->stmt->fetchAll();
             } else {
                 $data = $this->stmt->fetchAll(
-                    $this->convertFetchMode($fetchMode),
-                    ...$args
+                    $this->convertFetchMode($fetchMode)
                 );
             }
         } catch (\PDOException $exception) {
@@ -183,10 +179,10 @@ public function fetchAll($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchColumn($columnIndex = 0)
+    public function fetchColumn()
     {
         try {
-            return $this->stmt->fetchColumn($columnIndex);
+            return $this->stmt->fetchColumn();
         } catch (\PDOException $exception) {
             throw new PDOException($exception);
         }
diff --git a/src/Driver/ResultStatement.php b/src/Driver/ResultStatement.php
index 8cbd2688a21..9de8dae02aa 100644
--- a/src/Driver/ResultStatement.php
+++ b/src/Driver/ResultStatement.php
@@ -28,13 +28,12 @@ public function columnCount();
     /**
      * Sets the fetch mode to use while iterating this statement.
      *
-     * @param int   $fetchMode Controls how the next row will be returned to the caller.
-     *                         The value must be one of the {@link \Doctrine\DBAL\FetchMode} constants.
-     * @param mixed ...$args   Optional mode-specific arguments (see {@link self::fetchAll()}).
+     * @param int $fetchMode Controls how the next row will be returned to the caller.
+     *                       The value must be one of the {@link \Doctrine\DBAL\FetchMode} constants.
      *
      * @return bool
      */
-    public function setFetchMode($fetchMode, ...$args);
+    public function setFetchMode($fetchMode);
 
     /**
      * Returns the next row of a result set.
@@ -42,12 +41,11 @@ public function setFetchMode($fetchMode, ...$args);
      * @param int|null $fetchMode Controls how the next row will be returned to the caller.
      *                            The value must be one of the {@link \Doctrine\DBAL\FetchMode} constants,
      *                            defaulting to {@link \Doctrine\DBAL\FetchMode::MIXED}.
-     * @param mixed    ...$args   Optional mode-specific arguments (see {@link self::fetchAll()}).
      *
      * @return mixed The return value of this method on success depends on the fetch mode. In all cases, FALSE is
      *               returned on failure.
      */
-    public function fetch($fetchMode = null, ...$args);
+    public function fetch($fetchMode = null);
 
     /**
      * Returns an array containing all of the result set rows.
@@ -55,24 +53,15 @@ public function fetch($fetchMode = null, ...$args);
      * @param int|null $fetchMode Controls how the next row will be returned to the caller.
      *                            The value must be one of the {@link \Doctrine\DBAL\FetchMode} constants,
      *                            defaulting to {@link \Doctrine\DBAL\FetchMode::MIXED}.
-     * @param mixed    ...$args   Optional mode-specific arguments. Supported modes:
-     *                            * {@link \Doctrine\DBAL\FetchMode::COLUMN}
-     *                              1. The 0-indexed column to be returned.
-     *                            * {@link \Doctrine\DBAL\FetchMode::CUSTOM_OBJECT}
-     *                              1. The class name of the object to be created,
-     *                              2. Array of constructor arguments
      *
      * @return mixed[]
      */
-    public function fetchAll($fetchMode = null, ...$args);
+    public function fetchAll($fetchMode = null);
 
     /**
      * Returns a single column from the next row of a result set or FALSE if there are no more rows.
      *
-     * @param int $columnIndex 0-indexed number of the column you wish to retrieve from the row.
-     *                         If no value is supplied, fetches the first column.
-     *
      * @return mixed|false A single column in the next row of a result set, or FALSE if there are no more rows.
      */
-    public function fetchColumn($columnIndex = 0);
+    public function fetchColumn();
 }
diff --git a/src/Driver/SQLAnywhere/SQLAnywhereStatement.php b/src/Driver/SQLAnywhere/SQLAnywhereStatement.php
index 0667617426a..444f41d1bdb 100644
--- a/src/Driver/SQLAnywhere/SQLAnywhereStatement.php
+++ b/src/Driver/SQLAnywhere/SQLAnywhereStatement.php
@@ -7,21 +7,13 @@
 use Doctrine\DBAL\FetchMode;
 use Doctrine\DBAL\ParameterType;
 use IteratorAggregate;
-use ReflectionClass;
-use ReflectionObject;
-use stdClass;
 use const SASQL_BOTH;
 use function array_key_exists;
 use function assert;
-use function count;
-use function gettype;
 use function is_int;
-use function is_object;
 use function is_resource;
-use function is_string;
 use function sasql_fetch_array;
 use function sasql_fetch_assoc;
-use function sasql_fetch_object;
 use function sasql_fetch_row;
 use function sasql_prepare;
 use function sasql_stmt_affected_rows;
@@ -32,7 +24,6 @@
 use function sasql_stmt_field_count;
 use function sasql_stmt_reset;
 use function sasql_stmt_result_metadata;
-use function sprintf;
 
 /**
  * SAP SQL Anywhere implementation of the Statement interface.
@@ -42,12 +33,6 @@ class SQLAnywhereStatement implements IteratorAggregate, Statement
     /** @var resource The connection resource. */
     private $conn;
 
-    /** @var string Name of the default class to instantiate when fetching class instances. */
-    private $defaultFetchClass = '\stdClass';
-
-    /** @var mixed[] Constructor arguments for the default class to instantiate when fetching class instances. */
-    private $defaultFetchClassCtorArgs = [];
-
     /** @var int Default fetch mode to use. */
     private $defaultFetchMode = FetchMode::MIXED;
 
@@ -199,7 +184,7 @@ public function execute($params = null)
      *
      * @throws SQLAnywhereException
      */
-    public function fetch($fetchMode = null, ...$args)
+    public function fetch($fetchMode = null)
     {
         if (! is_resource($this->result)) {
             return false;
@@ -217,29 +202,9 @@ public function fetch($fetchMode = null, ...$args)
             case FetchMode::MIXED:
                 return sasql_fetch_array($this->result, SASQL_BOTH);
 
-            case FetchMode::CUSTOM_OBJECT:
-                $className = $this->defaultFetchClass;
-                $ctorArgs  = $this->defaultFetchClassCtorArgs;
-
-                if (count($args) > 0) {
-                    $className = $args[0];
-                    $ctorArgs  = $args[1] ?? [];
-                }
-
-                $result = sasql_fetch_object($this->result);
-
-                if ($result instanceof stdClass) {
-                    $result = $this->castObject($result, $className, $ctorArgs);
-                }
-
-                return $result;
-
             case FetchMode::NUMERIC:
                 return sasql_fetch_row($this->result);
 
-            case FetchMode::STANDARD_OBJECT:
-                return sasql_fetch_object($this->result);
-
             default:
                 throw new SQLAnywhereException('Fetch mode is not supported: ' . $fetchMode);
         }
@@ -248,17 +213,11 @@ public function fetch($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchAll($fetchMode = null, ...$args)
+    public function fetchAll($fetchMode = null)
     {
         $rows = [];
 
         switch ($fetchMode) {
-            case FetchMode::CUSTOM_OBJECT:
-                while (($row = $this->fetch($fetchMode, ...$args)) !== false) {
-                    $rows[] = $row;
-                }
-                break;
-
             case FetchMode::COLUMN:
                 while (($row = $this->fetchColumn()) !== false) {
                     $rows[] = $row;
@@ -277,7 +236,7 @@ public function fetchAll($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchColumn($columnIndex = 0)
+    public function fetchColumn()
     {
         $row = $this->fetch(FetchMode::NUMERIC);
 
@@ -285,7 +244,7 @@ public function fetchColumn($columnIndex = 0)
             return false;
         }
 
-        return $row[$columnIndex] ?? null;
+        return $row[0] ?? null;
     }
 
     /**
@@ -307,65 +266,10 @@ public function rowCount() : int
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode, ...$args)
+    public function setFetchMode($fetchMode)
     {
         $this->defaultFetchMode = $fetchMode;
 
-        if (isset($args[0])) {
-            $this->defaultFetchClass = $args[0];
-        }
-
-        if (isset($args[1])) {
-            $this->defaultFetchClassCtorArgs = (array) $args[1];
-        }
-
         return true;
     }
-
-    /**
-     * Casts a stdClass object to the given class name mapping its' properties.
-     *
-     * @param stdClass      $sourceObject     Object to cast from.
-     * @param string|object $destinationClass Name of the class or class instance to cast to.
-     * @param mixed[]       $ctorArgs         Arguments to use for constructing the destination class instance.
-     *
-     * @return object
-     *
-     * @throws SQLAnywhereException
-     */
-    private function castObject(stdClass $sourceObject, $destinationClass, array $ctorArgs = [])
-    {
-        if (! is_string($destinationClass)) {
-            if (! is_object($destinationClass)) {
-                throw new SQLAnywhereException(sprintf(
-                    'Destination class has to be of type string or object, %s given.',
-                    gettype($destinationClass)
-                ));
-            }
-        } else {
-            $destinationClass = new ReflectionClass($destinationClass);
-            $destinationClass = $destinationClass->newInstanceArgs($ctorArgs);
-        }
-
-        $sourceReflection           = new ReflectionObject($sourceObject);
-        $destinationClassReflection = new ReflectionObject($destinationClass);
-
-        foreach ($sourceReflection->getProperties() as $sourceProperty) {
-            $sourceProperty->setAccessible(true);
-
-            $name  = $sourceProperty->getName();
-            $value = $sourceProperty->getValue($sourceObject);
-
-            if ($destinationClassReflection->hasProperty($name)) {
-                $destinationProperty = $destinationClassReflection->getProperty($name);
-
-                $destinationProperty->setAccessible(true);
-                $destinationProperty->setValue($destinationClass, $value);
-            } else {
-                $destinationClass->$name = $value;
-            }
-        }
-
-        return $destinationClass;
-    }
 }
diff --git a/src/Driver/SQLSrv/SQLSrvStatement.php b/src/Driver/SQLSrv/SQLSrvStatement.php
index 6ba0bbd1e53..92aa3f759a3 100644
--- a/src/Driver/SQLSrv/SQLSrvStatement.php
+++ b/src/Driver/SQLSrv/SQLSrvStatement.php
@@ -14,15 +14,12 @@
 use const SQLSRV_FETCH_NUMERIC;
 use const SQLSRV_PARAM_IN;
 use function array_key_exists;
-use function count;
-use function in_array;
 use function is_int;
 use function is_numeric;
 use function sqlsrv_errors;
 use function sqlsrv_execute;
 use function sqlsrv_fetch;
 use function sqlsrv_fetch_array;
-use function sqlsrv_fetch_object;
 use function sqlsrv_get_field;
 use function sqlsrv_next_result;
 use function sqlsrv_num_fields;
@@ -84,20 +81,6 @@ class SQLSrvStatement implements IteratorAggregate, Statement
         FetchMode::NUMERIC     => SQLSRV_FETCH_NUMERIC,
     ];
 
-    /**
-     * The name of the default class to instantiate when fetching class instances.
-     *
-     * @var string
-     */
-    private $defaultFetchClass = '\stdClass';
-
-    /**
-     * The constructor arguments for the default class to instantiate when fetching class instances.
-     *
-     * @var mixed[]
-     */
-    private $defaultFetchClassCtorArgs = [];
-
     /**
      * The fetch style.
      *
@@ -322,18 +305,10 @@ private function prepare()
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode, ...$args)
+    public function setFetchMode($fetchMode)
     {
         $this->defaultFetchMode = $fetchMode;
 
-        if (isset($args[0])) {
-            $this->defaultFetchClass = $args[0];
-        }
-
-        if (isset($args[1])) {
-            $this->defaultFetchClassCtorArgs = (array) $args[1];
-        }
-
         return true;
     }
 
@@ -350,7 +325,7 @@ public function getIterator()
      *
      * @throws SQLSrvException
      */
-    public function fetch($fetchMode = null, ...$args)
+    public function fetch($fetchMode = null)
     {
         // do not try fetching from the statement if it's not expected to contain result
         // in order to prevent exceptional situation
@@ -368,35 +343,17 @@ public function fetch($fetchMode = null, ...$args)
             return sqlsrv_fetch_array($this->stmt, self::$fetchMap[$fetchMode]) ?? false;
         }
 
-        if (in_array($fetchMode, [FetchMode::STANDARD_OBJECT, FetchMode::CUSTOM_OBJECT], true)) {
-            $className = $this->defaultFetchClass;
-            $ctorArgs  = $this->defaultFetchClassCtorArgs;
-
-            if (count($args) > 0) {
-                $className = $args[0];
-                $ctorArgs  = $args[1] ?? [];
-            }
-
-            return sqlsrv_fetch_object($this->stmt, $className, $ctorArgs) ?? false;
-        }
-
         throw new SQLSrvException('Fetch mode is not supported!');
     }
 
     /**
      * {@inheritdoc}
      */
-    public function fetchAll($fetchMode = null, ...$args)
+    public function fetchAll($fetchMode = null)
     {
         $rows = [];
 
         switch ($fetchMode) {
-            case FetchMode::CUSTOM_OBJECT:
-                while (($row = $this->fetch($fetchMode, ...$args)) !== false) {
-                    $rows[] = $row;
-                }
-                break;
-
             case FetchMode::COLUMN:
                 while (($row = $this->fetchColumn()) !== false) {
                     $rows[] = $row;
@@ -415,7 +372,7 @@ public function fetchAll($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchColumn($columnIndex = 0)
+    public function fetchColumn()
     {
         $row = $this->fetch(FetchMode::NUMERIC);
 
@@ -423,7 +380,7 @@ public function fetchColumn($columnIndex = 0)
             return false;
         }
 
-        return $row[$columnIndex] ?? null;
+        return $row[0] ?? null;
     }
 
     /**
diff --git a/src/FetchMode.php b/src/FetchMode.php
index 65af014f1e0..b5dbab11667 100644
--- a/src/FetchMode.php
+++ b/src/FetchMode.php
@@ -35,15 +35,6 @@ final class FetchMode
      */
     public const MIXED = 4;
 
-    /**
-     * Specifies that the fetch method shall return each row as an object with
-     * property names that correspond to the column names returned in the result
-     * set.
-     *
-     * @see \PDO::FETCH_OBJ
-     */
-    public const STANDARD_OBJECT = 5;
-
     /**
      * Specifies that the fetch method shall return only a single requested
      * column from the next row in the result set.
@@ -52,14 +43,6 @@ final class FetchMode
      */
     public const COLUMN = 7;
 
-    /**
-     * Specifies that the fetch method shall return a new instance of the
-     * requested class, mapping the columns to named properties in the class.
-     *
-     * @see \PDO::FETCH_CLASS
-     */
-    public const CUSTOM_OBJECT = 8;
-
     /**
      * This class cannot be instantiated.
      */
diff --git a/src/Portability/Statement.php b/src/Portability/Statement.php
index 397f96c5954..d1369dfa2f9 100644
--- a/src/Portability/Statement.php
+++ b/src/Portability/Statement.php
@@ -111,11 +111,11 @@ public function execute($params = null)
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode, ...$args)
+    public function setFetchMode($fetchMode)
     {
         $this->defaultFetchMode = $fetchMode;
 
-        return $this->stmt->setFetchMode($fetchMode, ...$args);
+        return $this->stmt->setFetchMode($fetchMode);
     }
 
     /**
@@ -129,11 +129,11 @@ public function getIterator()
     /**
      * {@inheritdoc}
      */
-    public function fetch($fetchMode = null, ...$args)
+    public function fetch($fetchMode = null)
     {
         $fetchMode = $fetchMode ?? $this->defaultFetchMode;
 
-        $row = $this->stmt->fetch($fetchMode, ...$args);
+        $row = $this->stmt->fetch($fetchMode);
 
         $iterateRow = ($this->portability & (Connection::PORTABILITY_EMPTY_TO_NULL|Connection::PORTABILITY_RTRIM)) !== 0;
         $fixCase    = $this->case !== null
@@ -148,11 +148,11 @@ public function fetch($fetchMode = null, ...$args)
     /**
      * {@inheritdoc}
      */
-    public function fetchAll($fetchMode = null, ...$args)
+    public function fetchAll($fetchMode = null)
     {
         $fetchMode = $fetchMode ?? $this->defaultFetchMode;
 
-        $rows = $this->stmt->fetchAll($fetchMode, ...$args);
+        $rows = $this->stmt->fetchAll($fetchMode);
 
         $iterateRow = ($this->portability & (Connection::PORTABILITY_EMPTY_TO_NULL|Connection::PORTABILITY_RTRIM)) !== 0;
         $fixCase    = $this->case !== null
@@ -215,9 +215,9 @@ protected function fixRow($row, $iterateRow, $fixCase)
     /**
      * {@inheritdoc}
      */
-    public function fetchColumn($columnIndex = 0)
+    public function fetchColumn()
     {
-        $value = $this->stmt->fetchColumn($columnIndex);
+        $value = $this->stmt->fetchColumn();
 
         if (($this->portability & Connection::PORTABILITY_EMPTY_TO_NULL) !== 0 && $value === '') {
             $value = null;
diff --git a/src/Statement.php b/src/Statement.php
index ab848b3dc42..93201d29a5d 100644
--- a/src/Statement.php
+++ b/src/Statement.php
@@ -211,9 +211,9 @@ public function errorInfo()
     /**
      * {@inheritdoc}
      */
-    public function setFetchMode($fetchMode, ...$args)
+    public function setFetchMode($fetchMode)
     {
-        return $this->stmt->setFetchMode($fetchMode, ...$args);
+        return $this->stmt->setFetchMode($fetchMode);
     }
 
     /**
@@ -229,25 +229,25 @@ public function getIterator()
     /**
      * {@inheritdoc}
      */
-    public function fetch($fetchMode = null, ...$args)
+    public function fetch($fetchMode = null)
     {
-        return $this->stmt->fetch($fetchMode, ...$args);
+        return $this->stmt->fetch($fetchMode);
     }
 
     /**
      * {@inheritdoc}
      */
-    public function fetchAll($fetchMode = null, ...$args)
+    public function fetchAll($fetchMode = null)
     {
-        return $this->stmt->fetchAll($fetchMode, ...$args);
+        return $this->stmt->fetchAll($fetchMode);
     }
 
     /**
      * {@inheritDoc}
      */
-    public function fetchColumn($columnIndex = 0)
+    public function fetchColumn()
     {
-        return $this->stmt->fetchColumn($columnIndex);
+        return $this->stmt->fetchColumn();
     }
 
     /**
diff --git a/tests/ConnectionTest.php b/tests/ConnectionTest.php
index ef14ea66ff8..6e2545b75f3 100644
--- a/tests/ConnectionTest.php
+++ b/tests/ConnectionTest.php
@@ -627,7 +627,6 @@ public function testFetchColumn() : void
         $statement = 'SELECT * FROM foo WHERE bar = ?';
         $params    = [666];
         $types     = [ParameterType::INTEGER];
-        $column    = 0;
         $result    = [];
 
         $driverMock = $this->createMock(Driver::class);
@@ -642,7 +641,6 @@ public function testFetchColumn() : void
 
         $driverStatementMock->expects(self::once())
             ->method('fetchColumn')
-            ->with($column)
             ->will(self::returnValue($result));
 
         /** @var Connection|MockObject $conn */
@@ -656,7 +654,7 @@ public function testFetchColumn() : void
             ->with($statement, $params, $types)
             ->will(self::returnValue($driverStatementMock));
 
-        self::assertSame($result, $conn->fetchColumn($statement, $params, $column, $types));
+        self::assertSame($result, $conn->fetchColumn($statement, $params, $types));
     }
 
     public function testFetchAll() : void
diff --git a/tests/Functional/DataAccessTest.php b/tests/Functional/DataAccessTest.php
index 2706f3b3176..b73eeea39c2 100644
--- a/tests/Functional/DataAccessTest.php
+++ b/tests/Functional/DataAccessTest.php
@@ -6,9 +6,6 @@
 use Doctrine\DBAL\Connection;
 use Doctrine\DBAL\DBALException;
 use Doctrine\DBAL\Driver\Mysqli\Driver as MySQLiDriver;
-use Doctrine\DBAL\Driver\OCI8\Driver as Oci8Driver;
-use Doctrine\DBAL\Driver\PDOConnection;
-use Doctrine\DBAL\Driver\PDOOracle\Driver as PDOOracleDriver;
 use Doctrine\DBAL\Driver\SQLSrv\Driver as SQLSrvDriver;
 use Doctrine\DBAL\FetchMode;
 use Doctrine\DBAL\ParameterType;
@@ -18,7 +15,6 @@
 use Doctrine\DBAL\Statement;
 use Doctrine\DBAL\Tests\FunctionalTestCase;
 use Doctrine\DBAL\Types\Types;
-use PDO;
 use const CASE_LOWER;
 use function array_change_key_case;
 use function array_filter;
@@ -27,7 +23,6 @@
 use function date;
 use function is_numeric;
 use function json_encode;
-use function property_exists;
 use function sprintf;
 use function strtotime;
 
@@ -376,13 +371,13 @@ public function testFetchArrayWithMissingTypes() : void
 
     public function testFetchColumn() : void
     {
-        $sql     = 'SELECT test_int, test_string FROM fetch_table WHERE test_int = ? AND test_string = ?';
-        $testInt = $this->connection->fetchColumn($sql, [1, 'foo'], 0);
+        $sql     = 'SELECT test_int FROM fetch_table WHERE test_int = ? AND test_string = ?';
+        $testInt = $this->connection->fetchColumn($sql, [1, 'foo']);
 
         self::assertEquals(1, $testInt);
 
-        $sql        = 'SELECT test_int, test_string FROM fetch_table WHERE test_int = ? AND test_string = ?';
-        $testString = $this->connection->fetchColumn($sql, [1, 'foo'], 1);
+        $sql        = 'SELECT test_string FROM fetch_table WHERE test_int = ? AND test_string = ?';
+        $testString = $this->connection->fetchColumn($sql, [1, 'foo']);
 
         self::assertEquals('foo', $testString);
     }
@@ -392,15 +387,14 @@ public function testFetchColumnWithTypes() : void
         $datetimeString = '2010-01-01 10:10:10';
         $datetime       = new DateTime($datetimeString);
 
-        $sql    = 'SELECT test_int, test_datetime FROM fetch_table WHERE test_int = ? AND test_datetime = ?';
+        $sql    = 'SELECT test_datetime FROM fetch_table WHERE test_int = ? AND test_datetime = ?';
         $column = $this->connection->fetchColumn(
             $sql,
             [1, $datetime],
-            1,
             [ParameterType::STRING, Types::DATETIME_MUTABLE]
         );
 
-        self::assertNotFalse($column);
+        self::assertIsString($column);
 
         self::assertStringStartsWith($datetimeString, $column);
     }
@@ -418,7 +412,7 @@ public function testFetchColumnWithMissingTypes() : void
 
         $this->expectException(DBALException::class);
 
-        $this->connection->fetchColumn($sql, [1, $datetime], 1);
+        $this->connection->fetchColumn($sql, [1, $datetime]);
     }
 
     /**
@@ -635,7 +629,7 @@ public function testSqliteDateArithmeticWithDynamicInterval() : void
         $sql  = 'SELECT COUNT(*) FROM fetch_table_date_math WHERE ';
         $sql .= $platform->getDateSubDaysExpression('test_date', 'test_days') . " < '2010-05-12'";
 
-        $rowCount = $this->connection->fetchColumn($sql, [], 0);
+        $rowCount = $this->connection->fetchColumn($sql);
 
         self::assertEquals(1, $rowCount);
     }
@@ -738,62 +732,6 @@ public function testSetDefaultFetchMode() : void
         }), 'should be no non-numerical elements in the result.');
     }
 
-    /**
-     * @group DBAL-1091
-     */
-    public function testFetchAllStyleObject() : void
-    {
-        $this->setupFixture();
-
-        $sql  = 'SELECT test_int, test_string, test_datetime FROM fetch_table';
-        $stmt = $this->connection->prepare($sql);
-
-        $stmt->execute();
-
-        $results = $stmt->fetchAll(FetchMode::STANDARD_OBJECT);
-
-        self::assertCount(1, $results);
-        self::assertInstanceOf('stdClass', $results[0]);
-
-        self::assertEquals(
-            1,
-            property_exists($results[0], 'test_int') ? $results[0]->test_int : $results[0]->TEST_INT
-        );
-        self::assertEquals(
-            'foo',
-            property_exists($results[0], 'test_string') ? $results[0]->test_string : $results[0]->TEST_STRING
-        );
-        self::assertStringStartsWith(
-            '2010-01-01 10:10:10',
-            property_exists($results[0], 'test_datetime') ? $results[0]->test_datetime : $results[0]->TEST_DATETIME
-        );
-    }
-
-    /**
-     * @group DBAL-196
-     */
-    public function testFetchAllSupportFetchClass() : void
-    {
-        $this->beforeFetchClassTest();
-        $this->setupFixture();
-
-        $sql  = 'SELECT test_int, test_string, test_datetime FROM fetch_table';
-        $stmt = $this->connection->prepare($sql);
-        $stmt->execute();
-
-        $results = $stmt->fetchAll(
-            FetchMode::CUSTOM_OBJECT,
-            MyFetchClass::class
-        );
-
-        self::assertCount(1, $results);
-        self::assertInstanceOf(MyFetchClass::class, $results[0]);
-
-        self::assertEquals(1, $results[0]->test_int);
-        self::assertEquals('foo', $results[0]->test_string);
-        self::assertStringStartsWith('2010-01-01 10:10:10', $results[0]->test_datetime);
-    }
-
     /**
      * @group DBAL-241
      */
@@ -811,53 +749,6 @@ public function testFetchAllStyleColumn() : void
         self::assertEquals([1, 10], $rows);
     }
 
-    /**
-     * @group DBAL-214
-     */
-    public function testSetFetchModeClassFetchAll() : void
-    {
-        $this->beforeFetchClassTest();
-        $this->setupFixture();
-
-        $sql  = 'SELECT * FROM fetch_table';
-        $stmt = $this->connection->query($sql);
-        $stmt->setFetchMode(FetchMode::CUSTOM_OBJECT, MyFetchClass::class);
-
-        $results = $stmt->fetchAll();
-
-        self::assertCount(1, $results);
-        self::assertInstanceOf(MyFetchClass::class, $results[0]);
-
-        self::assertEquals(1, $results[0]->test_int);
-        self::assertEquals('foo', $results[0]->test_string);
-        self::assertStringStartsWith('2010-01-01 10:10:10', $results[0]->test_datetime);
-    }
-
-    /**
-     * @group DBAL-214
-     */
-    public function testSetFetchModeClassFetch() : void
-    {
-        $this->beforeFetchClassTest();
-        $this->setupFixture();
-
-        $sql  = 'SELECT * FROM fetch_table';
-        $stmt = $this->connection->query($sql);
-        $stmt->setFetchMode(FetchMode::CUSTOM_OBJECT, MyFetchClass::class);
-
-        $results = [];
-        while ($row = $stmt->fetch()) {
-            $results[] = $row;
-        }
-
-        self::assertCount(1, $results);
-        self::assertInstanceOf(MyFetchClass::class, $results[0]);
-
-        self::assertEquals(1, $results[0]->test_int);
-        self::assertEquals('foo', $results[0]->test_string);
-        self::assertStringStartsWith('2010-01-01 10:10:10', $results[0]->test_datetime);
-    }
-
     /**
      * @group DBAL-257
      */
@@ -898,21 +789,6 @@ public function testEmptyParameters() : void
         self::assertEquals([], $rows);
     }
 
-    /**
-     * @group DBAL-1028
-     */
-    public function testFetchColumnNullValue() : void
-    {
-        $this->connection->executeUpdate(
-            'INSERT INTO fetch_table (test_int, test_string) VALUES (?, ?)',
-            [2, 'foo']
-        );
-
-        self::assertNull(
-            $this->connection->fetchColumn('SELECT test_datetime FROM fetch_table WHERE test_int = ?', [2])
-        );
-    }
-
     /**
      * @group DBAL-1028
      */
@@ -922,48 +798,4 @@ public function testFetchColumnNoResult() : void
             $this->connection->fetchColumn('SELECT test_int FROM fetch_table WHERE test_int = ?', [-1])
         );
     }
-
-    private function setupFixture() : void
-    {
-        $this->connection->exec('DELETE FROM fetch_table');
-        $this->connection->insert('fetch_table', [
-            'test_int'      => 1,
-            'test_string'   => 'foo',
-            'test_datetime' => '2010-01-01 10:10:10',
-        ]);
-    }
-
-    private function beforeFetchClassTest() : void
-    {
-        $driver = $this->connection->getDriver();
-
-        if ($driver instanceof Oci8Driver) {
-            self::markTestSkipped('Not supported by OCI8');
-        }
-
-        if ($driver instanceof MySQLiDriver) {
-            self::markTestSkipped('Mysqli driver dont support this feature.');
-        }
-
-        if (! $driver instanceof PDOOracleDriver) {
-            return;
-        }
-
-        /** @var PDOConnection $connection */
-        $connection = $this->connection
-            ->getWrappedConnection();
-        $connection->getWrappedConnection()->setAttribute(PDO::ATTR_CASE, PDO::CASE_LOWER);
-    }
-}
-
-class MyFetchClass
-{
-    /** @var int */
-    public $test_int;
-
-    /** @var string */
-    public $test_string;
-
-    /** @var string */
-    public $test_datetime;
 }
diff --git a/tests/Functional/Types/BinaryTest.php b/tests/Functional/Types/BinaryTest.php
index 8491dff877e..04225239fe7 100644
--- a/tests/Functional/Types/BinaryTest.php
+++ b/tests/Functional/Types/BinaryTest.php
@@ -78,7 +78,6 @@ private function select(string $id)
         $value = $this->connection->fetchColumn(
             'SELECT val FROM binary_table WHERE id = ?',
             [$id],
-            0,
             [ParameterType::BINARY]
         );
 
diff --git a/tests/Portability/StatementTest.php b/tests/Portability/StatementTest.php
index 087c5d063f6..4213b232814 100644
--- a/tests/Portability/StatementTest.php
+++ b/tests/Portability/StatementTest.php
@@ -3,13 +3,11 @@
 namespace Doctrine\DBAL\Tests\Portability;
 
 use Doctrine\DBAL\Driver\Statement as DriverStatement;
-use Doctrine\DBAL\FetchMode;
 use Doctrine\DBAL\ParameterType;
 use Doctrine\DBAL\Portability\Connection;
 use Doctrine\DBAL\Portability\Statement;
 use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
-use ReflectionProperty;
 use function iterator_to_array;
 
 class StatementTest extends TestCase
@@ -122,25 +120,6 @@ public function testExecute() : void
         self::assertTrue($this->stmt->execute($params));
     }
 
-    public function testSetFetchMode() : void
-    {
-        $fetchMode = FetchMode::CUSTOM_OBJECT;
-        $arg1      = 'MyClass';
-        $arg2      = [1, 2];
-
-        $this->wrappedStmt->expects(self::once())
-            ->method('setFetchMode')
-            ->with($fetchMode, $arg1, $arg2)
-            ->will(self::returnValue(true));
-
-        $re = new ReflectionProperty($this->stmt, 'defaultFetchMode');
-        $re->setAccessible(true);
-
-        self::assertSame(FetchMode::MIXED, $re->getValue($this->stmt));
-        self::assertTrue($this->stmt->setFetchMode($fetchMode, $arg1, $arg2));
-        self::assertSame($fetchMode, $re->getValue($this->stmt));
-    }
-
     public function testGetIterator() : void
     {
         $this->wrappedStmt->expects(self::exactly(3))
diff --git a/tests/StatementTest.php b/tests/StatementTest.php
index 9af45c91d15..2c2a1f79b60 100644
--- a/tests/StatementTest.php
+++ b/tests/StatementTest.php
@@ -8,7 +8,6 @@
 use Doctrine\DBAL\Driver;
 use Doctrine\DBAL\Driver\Connection as DriverConnection;
 use Doctrine\DBAL\Driver\Statement as DriverStatement;
-use Doctrine\DBAL\FetchMode;
 use Doctrine\DBAL\Logging\SQLLogger;
 use Doctrine\DBAL\ParameterType;
 use Doctrine\DBAL\Statement;
@@ -149,15 +148,4 @@ public function testExecuteCallsLoggerStopQueryOnException() : void
 
         $statement->execute();
     }
-
-    public function testPDOCustomClassConstructorArgs() : void
-    {
-        $statement = new Statement('', $this->conn);
-
-        $this->driverStatement->expects(self::once())
-            ->method('fetchAll')
-            ->with(self::equalTo(FetchMode::CUSTOM_OBJECT), self::equalTo('Example'), self::equalTo(['arg1']));
-
-        $statement->fetchAll(FetchMode::CUSTOM_OBJECT, 'Example', ['arg1']);
-    }
 }