isIndexExists

boolean public
\Bitrix\Main\DB\MssqlConnection::isIndexExists(
 string $tableName,
 array $columns
);

This non-static method checks existence of index.

Actual content of index columns can vary from the queried columns. Prefix for actual index columns can be used in $columns.

Parameter	Description	Version
$tableName	Table name.
$columns	Array of columns within index.