public createIndex ( string $name, string $table, string | array $columns, boolean $unique = false ) | ||
$name | string | the name of the index. The name will be properly quoted by the method. |
$table | string | the table that the new index will be created for. The table name will be properly quoted by the method. |
$columns | string | array | the column(s) that should be included in the index. If there are multiple columns, please separate them by commas. The column names will be properly quoted by the method. |
$unique | boolean | whether to add UNIQUE constraint on the created index. |