function Schema::findPrimaryKeyColumns

Same name in this branch

11.1.x core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::findPrimaryKeyColumns()
11.1.x core/modules/sqlite/src/Driver/Database/sqlite/Schema.php \Drupal\sqlite\Driver\Database\sqlite\Schema::findPrimaryKeyColumns()
11.1.x core/modules/mysql/src/Driver/Database/mysql/Schema.php \Drupal\mysql\Driver\Database\mysql\Schema::findPrimaryKeyColumns()

Overrides Schema::findPrimaryKeyColumns

File

core/modules/pgsql/src/Driver/Database/pgsql/Schema.php, line 801

Class

Schema: PostgreSQL implementation of \Drupal\Core\Database\Schema.

Namespace

Drupal\pgsql\Driver\Database\pgsql

Code

protected function findPrimaryKeyColumns($table) {
    if (!$this->tableExists($table)) {
        return FALSE;
    }
    return $this->connection
        ->query("SELECT array_position(i.indkey, a.attnum) AS position, a.attname FROM pg_index i JOIN pg_attribute a ON a.attrelid = i.indrelid AND a.attnum = ANY(i.indkey) WHERE i.indrelid = '{" . $table . "}'::regclass AND i.indisprimary ORDER BY position")
        ->fetchAllKeyed();
}