/**
* Строит WHAT часть запроса (SELECT WHAT)
* @internal
* @param ISelectBuilder $query
* @return string
*/
private function buildSelectWhatPart(ISelectBuilder $query)
{
$columns = $query->getSelectColumns();
if (!count($columns)) {
return '*';
}
$result = [];
foreach ($columns as $column) {
if (is_array($column)) {
list($name, $alias) = $column;
$name = $this->protectExpressionValue($name);
$result[] = $name . ($alias ? ' AS ' . $this->quoteIdentifier($alias) : '');
}
}
return implode(", ", $result);
}
