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Schema API

A Drupal schema definition is an array structure representing one or more tables and their related keys and indexes. A schema is defined by hook_schema(), which usually lives in a modulename.install file.

Code

includes/database/pgsql/schema.inc, line 586

<?php
protected function _createKeys(&$ret, $table, $new_keys) {
  if (isset($new_keys['primary key'])) {
    $this->addPrimaryKey($ret, $table, $new_keys['primary key']);
  }
  if (isset($new_keys['unique keys'])) {
    foreach ($new_keys['unique keys'] as $name => $fields) {
      $this->addUniqueKey($ret, $table, $name, $fields);
    }
  }
  if (isset($new_keys['indexes'])) {
    foreach ($new_keys['indexes'] as $name => $fields) {
      $this->addIndex($ret, $table, $name, $fields);
    }
  }
}
?>