src/Liip/Drupal/Modules/DrupalConnector/Database.php
public function db_add_field($table, $field, $spec, $keys_new = array())
    {
        db_add_field($table, $field, $spec, $keys_new);
    }
public function db_add_field($table, $field, $spec, $keys_new = array())
    {
        db_add_field($table, $field, $spec, $keys_new);
    }
public function db_add_field ( $ table , $ field , $ spec , $ keys_new = array ( ) ) { db_add_field ( $ table , $ field , $ spec , $ keys_new ) ; }
Adds a new field to a table.

@param $table
Name of the table to be altered.
@param $field
Name of the field to be added.
@param $spec
The field specification array, as taken from a schema definition. The
specification may also contain the key 'initial'; the newly-created field
will be set to the value of the key in all rows. This is most useful for
creating NOT NULL columns with no default value in existing tables.
@param $keys_new
Optional keys and indexes specification to be created on the table along
with adding the field. The format is the same as a table specification, but
without the 'fields' element. If you are adding a type 'serial' field, you
MUST specify at least one key or index including it in this array. See
db_change_field() for more explanation why.

@see db_change_field()
@link http://api.drupal.org/api/drupal/includes!database!database.inc/function/db_add_field/7
Adds a new field to a table .