I'm trying to change a columns name from "namesurname" (I forogt a comma, so this mistake happened ;-)) to "name" (column "surname" already added). But in the Terminal I see the below error output. Any ideas? Is there a mistake with my constructor? I double-checked, but didn't find anything wrong. According to the Akelos API it says "renameColumn ( $table_name, $old_column_name, $new_column_name)".

Akelos function in "booklink_install.php":

function up_3() 
{
    $this->renameColumn('authors',
        'namesurname',    // change old column name...
        'name'                 // ...to new column name
    );
}

MySQL Error Output:
(mysqlt): ALTER TABLE authors CHANGE COLUMN namesurname name 
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1064: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
                        ADOConnection._Execute(ALTER TABLE authors CHANGE COLUMN namesurname name , false)% line  854, file: /Library/WebServer/Documents/Frameworks/akelos/vendor/adodb/adodb.inc.php
                    ADOConnection.Execute(ALTER TABLE authors CHANGE COLUMN namesurname name )% line  268, file: /Library/WebServer/Documents/Frameworks/akelos/vendor/adodb/adodb-datadict.inc.php
                ADODB_DataDict.ExecuteSQLArray(Array[1])% line  240, file: /Library/WebServer/Documents/Frameworks/akelos/lib/AkInstaller.php
            AkInstaller.renameColumn(authors, namesurname, name, true)% line   82, file: /Users/me/Sites/dev/booklink/app/installers/booklink_installer.php
        BooklinkInstaller.up_3(Array[0])% line  156, file: /Library/WebServer/Documents/Frameworks/akelos/lib/AkInstaller.php
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(mysqlt): ROLLBACK
-----
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(mysqlt): SET AUTOCOMMIT=1
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Smart Rollback occurred

Thanks four your help IneX

Works, thank you, Kaste!

$sql = 'ALTER TABLE authors CHANGE COLUMN namesurname name VARCHAR(255)';
$this->db->Execute($sql);