db_drop_primary_key

Drop the primary key.

Parameters

$ret: Array to which query results will be added.

$table: The table to be altered.

Related topics

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.

100 functions call db_drop_primary_key()

File

drupal/includes/database.mysql-common.inc, line 393

Functions shared between mysql and mysqli database engines.

Code

<?php
function db_drop_primary_key(&$ret, $table) {
  $ret[] = update_sql('ALTER TABLE {' . $table . '} DROP PRIMARY KEY');
}
?>