private function detectColumnTypes()
{
if ($this->types === NULL) {
$this->types = array();
if ($this->connection->getSupplementalDriver()->isSupported(ISupplementalDriver::SUPPORT_COLUMNS_META)) { // workaround for PHP bugs #53782, #54695
$count = $this->columnCount();
for ($col = 0; $col < $count; $col++) {
$meta = $this->getColumnMeta($col);
if (isset($meta['native_type'])) {
$this->types[$meta['name']] = NDatabaseHelpers::detectType($meta['native_type']);
}
}
}
}
return $this->types;
}
