quote old column name in rename column SQL

lib/Doctrine/DBAL/Platforms/DB2Platform.php

@@ -19,6 +19,7 @@
 
 namespace Doctrine\DBAL\Platforms;
 
+use Doctrine\DBAL\Schema\Identifier;
 use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\TableDiff;
 
@@ -511,7 +512,10 @@ class DB2Platform extends AbstractPlatform
                 continue;
             }
 
-            $queryParts[] =  'RENAME COLUMN ' . $oldColumnName . ' TO ' . $column->getQuotedName($this);
+            $oldColumnName = new Identifier($oldColumnName);
+
+            $queryParts[] =  'RENAME COLUMN ' . $oldColumnName->getQuotedName($this) .
+                ' TO ' . $column->getQuotedName($this);
         }
 
         $tableSql = array();

lib/Doctrine/DBAL/Platforms/DrizzlePlatform.php

@@ -19,6 +19,7 @@
 
 namespace Doctrine\DBAL\Platforms;
 
+use Doctrine\DBAL\Schema\Identifier;
 use Doctrine\DBAL\Schema\TableDiff;
 use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\Table;
@@ -573,9 +574,11 @@ class DrizzlePlatform extends AbstractPlatform
                 continue;
             }
 
+            $oldColumnName = new Identifier($oldColumnName);
+
             $columnArray = $column->toArray();
             $columnArray['comment'] = $this->getColumnComment($column);
-            $queryParts[] =  'CHANGE ' . $oldColumnName . ' '
+            $queryParts[] =  'CHANGE ' . $oldColumnName->getQuotedName($this) . ' '
                     . $this->getColumnDeclarationSQL($column->getQuotedName($this), $columnArray);
         }
 

lib/Doctrine/DBAL/Platforms/MySqlPlatform.php

@@ -19,6 +19,7 @@
 
 namespace Doctrine\DBAL\Platforms;
 
+use Doctrine\DBAL\Schema\Identifier;
 use Doctrine\DBAL\Schema\TableDiff;
 use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\Table;
@@ -612,9 +613,10 @@ class MySqlPlatform extends AbstractPlatform
                 continue;
             }
 
+            $oldColumnName = new Identifier($oldColumnName);
             $columnArray = $column->toArray();
             $columnArray['comment'] = $this->getColumnComment($column);
-            $queryParts[] =  'CHANGE ' . $oldColumnName . ' '
+            $queryParts[] =  'CHANGE ' . $oldColumnName->getQuotedName($this) . ' '
                     . $this->getColumnDeclarationSQL($column->getQuotedName($this), $columnArray);
         }
 

lib/Doctrine/DBAL/Platforms/OraclePlatform.php

@@ -20,6 +20,7 @@
 namespace Doctrine\DBAL\Platforms;
 
 use Doctrine\DBAL\Schema\ForeignKeyConstraint;
+use Doctrine\DBAL\Schema\Identifier;
 use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\Sequence;
 use Doctrine\DBAL\Schema\Table;
@@ -710,7 +711,10 @@ LEFT JOIN user_cons_columns r_cols
                 continue;
             }
 
-            $sql[] = 'ALTER TABLE ' . $diff->getName()->getQuotedName($this) . ' RENAME COLUMN ' . $oldColumnName .' TO ' . $column->getQuotedName($this);
+            $oldColumnName = new Identifier($oldColumnName);
+
+            $sql[] = 'ALTER TABLE ' . $diff->getName()->getQuotedName($this) .
+                ' RENAME COLUMN ' . $oldColumnName->getQuotedName($this) .' TO ' . $column->getQuotedName($this);
         }
 
         $fields = array();

lib/Doctrine/DBAL/Platforms/PostgreSqlPlatform.php

@@ -533,7 +533,10 @@ class PostgreSqlPlatform extends AbstractPlatform
                 continue;
             }
 
-            $sql[] = 'ALTER TABLE ' . $diff->getName()->getQuotedName($this) . ' RENAME COLUMN ' . $oldColumnName . ' TO ' . $column->getQuotedName($this);
+            $oldColumnName = new Identifier($oldColumnName);
+
+            $sql[] = 'ALTER TABLE ' . $diff->getName()->getQuotedName($this) .
+                ' RENAME COLUMN ' . $oldColumnName->getQuotedName($this) . ' TO ' . $column->getQuotedName($this);
         }
 
         $tableSql = array();

lib/Doctrine/DBAL/Platforms/SQLAnywherePlatform.php

@@ -251,7 +251,9 @@ class SQLAnywherePlatform extends AbstractPlatform
      */
     protected function getAlterTableRenameColumnClause($oldColumnName, Column $column)
     {
-        return 'RENAME ' . $oldColumnName .' TO ' . $column->getQuotedName($this);
+        $oldColumnName = new Identifier($oldColumnName);
+
+        return 'RENAME ' . $oldColumnName->getQuotedName($this) .' TO ' . $column->getQuotedName($this);
     }
 
     /**

lib/Doctrine/DBAL/Platforms/SQLServerPlatform.php

@@ -22,6 +22,7 @@ namespace Doctrine\DBAL\Platforms;
 use Doctrine\DBAL\LockMode;
 use Doctrine\DBAL\Schema\Column;
 use Doctrine\DBAL\Schema\ColumnDiff;
+use Doctrine\DBAL\Schema\Identifier;
 use Doctrine\DBAL\Schema\TableDiff;
 use Doctrine\DBAL\Schema\ForeignKeyConstraint;
 use Doctrine\DBAL\Schema\Index;
@@ -538,7 +539,10 @@ class SQLServerPlatform extends AbstractPlatform
                 continue;
             }
 
-            $sql[] = "sp_RENAME '". $diff->name. ".". $oldColumnName . "', '".$column->getQuotedName($this)."', 'COLUMN'";
+            $oldColumnName = new Identifier($oldColumnName);
+
+            $sql[] = "sp_RENAME '" . $diff->name . "." . $oldColumnName->getQuotedName($this) .
+                "', '" . $column->getQuotedName($this) . "', 'COLUMN'";
 
             // Recreate default constraint with new column name if necessary (for future reference).
             if ($column->getDefault() !== null) {

tests/Doctrine/Tests/DBAL/Platforms/AbstractMySQLPlatformTestCase.php

@@ -537,4 +537,23 @@ abstract class AbstractMySQLPlatformTestCase extends AbstractPlatformTestCase
 
         $this->assertEmpty($this->_platform->getAlterTableSQL($comparator->diffTable($table, $diffTable)));
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getQuotedAlterTableRenameColumnSQL()
+    {
+        return array(
+            "ALTER TABLE mytable " .
+            "CHANGE unquoted1 unquoted INT NOT NULL COMMENT 'Unquoted 1', " .
+            "CHANGE unquoted2 `where` INT NOT NULL COMMENT 'Unquoted 2', " .
+            "CHANGE unquoted3 `foo` INT NOT NULL COMMENT 'Unquoted 3', " .
+            "CHANGE `create` reserved_keyword INT NOT NULL COMMENT 'Reserved keyword 1', " .
+            "CHANGE `table` `from` INT NOT NULL COMMENT 'Reserved keyword 2', " .
+            "CHANGE `select` `bar` INT NOT NULL COMMENT 'Reserved keyword 3', " .
+            "CHANGE quoted1 quoted INT NOT NULL COMMENT 'Quoted 1', " .
+            "CHANGE quoted2 `and` INT NOT NULL COMMENT 'Quoted 2', " .
+            "CHANGE quoted3 `baz` INT NOT NULL COMMENT 'Quoted 3'"
+        );
+    }
 }

tests/Doctrine/Tests/DBAL/Platforms/AbstractPlatformTestCase.php

@@ -5,6 +5,7 @@ namespace Doctrine\Tests\DBAL\Platforms;
 use Doctrine\Common\EventManager;
 use Doctrine\DBAL\Events;
 use Doctrine\DBAL\Platforms\AbstractPlatform;
+use Doctrine\DBAL\Schema\Comparator;
 use Doctrine\DBAL\Schema\ForeignKeyConstraint;
 use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\Table;
@@ -665,4 +666,54 @@ abstract class AbstractPlatformTestCase extends \Doctrine\Tests\DbalTestCase
             'CREATE INDEX "bar" ON "table" (id)',
         );
     }
+
+    /**
+     * @group DBAL-835
+     */
+    public function testQuotesAlterTableRenameColumn()
+    {
+        $fromTable = new Table('mytable');
+
+        $fromTable->addColumn('unquoted1', 'integer', array('comment' => 'Unquoted 1'));
+        $fromTable->addColumn('unquoted2', 'integer', array('comment' => 'Unquoted 2'));
+        $fromTable->addColumn('unquoted3', 'integer', array('comment' => 'Unquoted 3'));
+
+        $fromTable->addColumn('create', 'integer', array('comment' => 'Reserved keyword 1'));
+        $fromTable->addColumn('table', 'integer', array('comment' => 'Reserved keyword 2'));
+        $fromTable->addColumn('select', 'integer', array('comment' => 'Reserved keyword 3'));
+
+        $fromTable->addColumn('`quoted1`', 'integer', array('comment' => 'Quoted 1'));
+        $fromTable->addColumn('`quoted2`', 'integer', array('comment' => 'Quoted 2'));
+        $fromTable->addColumn('`quoted3`', 'integer', array('comment' => 'Quoted 3'));
+
+        $toTable = new Table('mytable');
+
+        $toTable->addColumn('unquoted', 'integer', array('comment' => 'Unquoted 1')); // unquoted -> unquoted
+        $toTable->addColumn('where', 'integer', array('comment' => 'Unquoted 2')); // unquoted -> reserved keyword
+        $toTable->addColumn('`foo`', 'integer', array('comment' => 'Unquoted 3')); // unquoted -> quoted
+
+        $toTable->addColumn('reserved_keyword', 'integer', array('comment' => 'Reserved keyword 1')); // reserved keyword -> unquoted
+        $toTable->addColumn('from', 'integer', array('comment' => 'Reserved keyword 2')); // reserved keyword -> reserved keyword
+        $toTable->addColumn('`bar`', 'integer', array('comment' => 'Reserved keyword 3')); // reserved keyword -> quoted
+
+        $toTable->addColumn('quoted', 'integer', array('comment' => 'Quoted 1')); // quoted -> unquoted
+        $toTable->addColumn('and', 'integer', array('comment' => 'Quoted 2')); // quoted -> reserved keyword
+        $toTable->addColumn('`baz`', 'integer', array('comment' => 'Quoted 3')); // quoted -> quoted
+
+        $comparator = new Comparator();
+
+        $this->assertEquals(
+            $this->getQuotedAlterTableRenameColumnSQL(),
+            $this->_platform->getAlterTableSQL($comparator->diffTable($fromTable, $toTable))
+        );
+    }
+
+    /**
+     * Returns SQL statements for {@link testQuotesAlterTableRenameColumn}.
+     *
+     * @return array
+     *
+     * @group DBAL-835
+     */
+    abstract protected function getQuotedAlterTableRenameColumnSQL();
 }

tests/Doctrine/Tests/DBAL/Platforms/AbstractPostgreSqlPlatformTestCase.php

@@ -520,4 +520,22 @@ abstract class AbstractPostgreSqlPlatformTestCase extends AbstractPlatformTestCa
             'ALTER INDEX "foo" RENAME TO "bar"',
         );
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getQuotedAlterTableRenameColumnSQL()
+    {
+        return array(
+            'ALTER TABLE mytable RENAME COLUMN unquoted1 TO unquoted',
+            'ALTER TABLE mytable RENAME COLUMN unquoted2 TO "where"',
+            'ALTER TABLE mytable RENAME COLUMN unquoted3 TO "foo"',
+            'ALTER TABLE mytable RENAME COLUMN "create" TO reserved_keyword',
+            'ALTER TABLE mytable RENAME COLUMN "table" TO "from"',
+            'ALTER TABLE mytable RENAME COLUMN "select" TO "bar"',
+            'ALTER TABLE mytable RENAME COLUMN quoted1 TO quoted',
+            'ALTER TABLE mytable RENAME COLUMN quoted2 TO "and"',
+            'ALTER TABLE mytable RENAME COLUMN quoted3 TO "baz"',
+        );
+    }
 }

tests/Doctrine/Tests/DBAL/Platforms/AbstractSQLServerPlatformTestCase.php

@@ -190,7 +190,7 @@ abstract class AbstractSQLServerPlatformTestCase extends AbstractPlatformTestCas
         $sql = $this->_platform->modifyLimitQuery('SELECT * FROM user ORDER BY username ASC', 10);
         $this->assertEquals('SELECT * FROM (SELECT *, ROW_NUMBER() OVER (ORDER BY username ASC) AS doctrine_rownum FROM user) AS doctrine_tbl WHERE doctrine_rownum BETWEEN 1 AND 10', $sql);
     }
-    
+
     public function testModifyLimitQueryWithLowercaseOrderBy()
     {
         $sql = $this->_platform->modifyLimitQuery('SELECT * FROM user order by username', 10);
@@ -863,4 +863,22 @@ abstract class AbstractSQLServerPlatformTestCase extends AbstractPlatformTestCas
             )
         );
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getQuotedAlterTableRenameColumnSQL()
+    {
+        return array(
+            "sp_RENAME 'mytable.unquoted1', 'unquoted', 'COLUMN'",
+            "sp_RENAME 'mytable.unquoted2', '[where]', 'COLUMN'",
+            "sp_RENAME 'mytable.unquoted3', '[foo]', 'COLUMN'",
+            "sp_RENAME 'mytable.[create]', 'reserved_keyword', 'COLUMN'",
+            "sp_RENAME 'mytable.[table]', '[from]', 'COLUMN'",
+            "sp_RENAME 'mytable.[select]', '[bar]', 'COLUMN'",
+            "sp_RENAME 'mytable.quoted1', 'quoted', 'COLUMN'",
+            "sp_RENAME 'mytable.quoted2', '[and]', 'COLUMN'",
+            "sp_RENAME 'mytable.quoted3', '[baz]', 'COLUMN'",
+        );
+    }
 }

tests/Doctrine/Tests/DBAL/Platforms/DB2PlatformTest.php

@@ -405,4 +405,23 @@ class DB2PlatformTest extends AbstractPlatformTestCase
             'RENAME INDEX "foo" TO "bar"',
         );
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getQuotedAlterTableRenameColumnSQL()
+    {
+        return array(
+            'ALTER TABLE mytable ' .
+            'RENAME COLUMN unquoted1 TO unquoted ' .
+            'RENAME COLUMN unquoted2 TO "where" ' .
+            'RENAME COLUMN unquoted3 TO "foo" ' .
+            'RENAME COLUMN "create" TO reserved_keyword ' .
+            'RENAME COLUMN "table" TO "from" ' .
+            'RENAME COLUMN "select" TO "bar" ' .
+            'RENAME COLUMN quoted1 TO quoted ' .
+            'RENAME COLUMN quoted2 TO "and" ' .
+            'RENAME COLUMN quoted3 TO "baz"'
+        );
+    }
 }

tests/Doctrine/Tests/DBAL/Platforms/OraclePlatformTest.php

@@ -437,4 +437,22 @@ class OraclePlatformTest extends AbstractPlatformTestCase
             'ALTER INDEX "foo" RENAME TO "bar"',
         );
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getQuotedAlterTableRenameColumnSQL()
+    {
+        return array(
+            'ALTER TABLE mytable RENAME COLUMN unquoted1 TO unquoted',
+            'ALTER TABLE mytable RENAME COLUMN unquoted2 TO "where"',
+            'ALTER TABLE mytable RENAME COLUMN unquoted3 TO "foo"',
+            'ALTER TABLE mytable RENAME COLUMN "create" TO reserved_keyword',
+            'ALTER TABLE mytable RENAME COLUMN "table" TO "from"',
+            'ALTER TABLE mytable RENAME COLUMN "select" TO "bar"',
+            'ALTER TABLE mytable RENAME COLUMN quoted1 TO quoted',
+            'ALTER TABLE mytable RENAME COLUMN quoted2 TO "and"',
+            'ALTER TABLE mytable RENAME COLUMN quoted3 TO "baz"',
+        );
+    }
 }

tests/Doctrine/Tests/DBAL/Platforms/SQLAnywherePlatformTest.php

@@ -809,4 +809,22 @@ class SQLAnywherePlatformTest extends AbstractPlatformTestCase
             'ALTER INDEX "foo" ON "table" RENAME TO "bar"',
         );
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getQuotedAlterTableRenameColumnSQL()
+    {
+        return array(
+            'ALTER TABLE mytable RENAME unquoted1 TO unquoted',
+            'ALTER TABLE mytable RENAME unquoted2 TO "where"',
+            'ALTER TABLE mytable RENAME unquoted3 TO "foo"',
+            'ALTER TABLE mytable RENAME "create" TO reserved_keyword',
+            'ALTER TABLE mytable RENAME "table" TO "from"',
+            'ALTER TABLE mytable RENAME "select" TO "bar"',
+            'ALTER TABLE mytable RENAME quoted1 TO quoted',
+            'ALTER TABLE mytable RENAME quoted2 TO "and"',
+            'ALTER TABLE mytable RENAME quoted3 TO "baz"',
+        );
+    }
 }

tests/Doctrine/Tests/DBAL/Platforms/SqlitePlatformTest.php

@@ -482,4 +482,18 @@ class SqlitePlatformTest extends AbstractPlatformTestCase
             'CREATE INDEX "bar" ON table (id)',
         );
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getQuotedAlterTableRenameColumnSQL()
+    {
+        return array(
+            'CREATE TEMPORARY TABLE __temp__mytable AS SELECT unquoted1, unquoted2, unquoted3, "create", "table", "select", "quoted1", "quoted2", "quoted3" FROM mytable',
+            'DROP TABLE mytable',
+            'CREATE TABLE mytable (unquoted INTEGER NOT NULL, "where" INTEGER NOT NULL, "foo" INTEGER NOT NULL, reserved_keyword INTEGER NOT NULL, "from" INTEGER NOT NULL, "bar" INTEGER NOT NULL, quoted INTEGER NOT NULL, "and" INTEGER NOT NULL, "baz" INTEGER NOT NULL)',
+            'INSERT INTO mytable (unquoted, "where", "foo", reserved_keyword, "from", "bar", quoted, "and", "baz") SELECT unquoted1, unquoted2, unquoted3, "create", "table", "select", "quoted1", "quoted2", "quoted3" FROM __temp__mytable',
+            'DROP TABLE __temp__mytable',
+        );
+    }
 }