private function processMultiColumn(IStorageReflection $sourceReflection, array $primaryKey, $value, $sourceAlias)
{
$pair = [];
foreach ($primaryKey as $column) {
$column = $sourceReflection->convertEntityToStorageKey($column);
$pair[] = "[{$sourceAlias}.{$column}]";
}
if (!isset($value[0][0])) {
$value = [$value];
}
return ['(' . implode(', ', $pair) . ')', $value];
}
