protected function getIndexes()
{
return ['index1' => new Index('index1', ['column1']), 'index2' => new Index('index2', ['column1', 'column2']), 'PRIMARY' => new Index('PRIMARY', ['column3']), 'index4' => new Index('index4', ['column4'], 'UNIQUE'), 'index5' => new Index('index5', ['column7'], 'FULLTEXT')];
}