phorge-phorge/resources/sql/patches/20130915.maniphestmigrate.php

<?php

$conn_w = id(new ManiphestTask())->establishConnection('w');
$table_name = id(new ManiphestCustomFieldStorage())->getTableName();

$rows = new LiskRawMigrationIterator($conn_w, 'maniphest_taskauxiliarystorage');

echo pht('Migrating custom storage for Maniphest fields...')."\n";
foreach ($rows as $row) {
  $phid = $row['taskPHID'];
  $name = $row['name'];

  echo pht('Migrating %s / %s...', $phid, $name)."\n";

  queryfx(
    $conn_w,
    'INSERT IGNORE INTO %T (objectPHID, fieldIndex, fieldValue)
      VALUES (%s, %s, %s)',
    $table_name,
    $phid,
    PhabricatorHash::digestForIndex('std:maniphest:'.$name),
    $row['value']);
}

echo pht('Done.')."\n";