PHP关联数组键缩短

Question

我遇到的问题是缩短了从SQL查询（Oracle ODBC）创建的关联数组的键。我以前从来没有见过这个。使用下面的SQL数组最终为

0:
  UPSTREAMCI_LOGI => xxxxxxxxxxxxxxxxxxxxxxxxxxx
  DOWNSTREAM_LO => xxxxxxxx

$sql = "SELECT UPSTREAMCI_LOGICAL_NAME, DOWNSTREAMCI_LOGICAL_NAME WHERE SYSMODTIME >= TO_DATE('2017-04-29', 'yyyy-mm-dd')";
$result = odbc_exec($connect, $sql);
$dbinfo = array();
while ($row = odbc_fetch_array($result)) {
    $dbinfo[] = $row;
}