Finds the primary key columns of a table, from the database.

Parameters

string $table: The name of the table.

Return value

string[]|false A simple array with the names of the columns composing the table's primary key, or FALSE if the table does not exist.

Overrides Schema::findPrimaryKeyColumns

File

core/modules/sqlite/src/Driver/Database/sqlite/Schema.php, line 792

Class

Schema

SQLite implementation of \Drupal\Core\Database\Schema.

Namespace

Drupal\sqlite\Driver\Database\sqlite

Code

protected function findPrimaryKeyColumns($table) {
  if (!$this->tableExists($table)) {
    return FALSE;
  }
  $schema = $this->introspectSchema($table);
  return $schema['primary key'];
}

---