| public findUniqueIndexes ( yii\db\TableSchema $table ) : array | ||
| $table | yii\db\TableSchema | the table metadata |
| return | array | all unique indexes for the given table. |
public function findUniqueIndexes($table)
{
$uniqueIndexes = [];
$rows = $this->getUniqueIndexInformation($table);
foreach ($rows as $row) {
$column = $row['columnname'];
if (!empty($column) && $column[0] === '"') {
// postgres will quote names that are not lowercase-only
// https://github.com/yiisoft/yii2/issues/10613
$column = substr($column, 1, -1);
}
$uniqueIndexes[$row['indexname']][] = $column;
}
return $uniqueIndexes;
}