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MariaDB before 10.3 could not update same table used in a sub-query

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This commit is contained in:
Ralf Becker 2019-09-21 09:39:17 +02:00
parent b7eb1f866b
commit 3bf72f39d8
1 changed files with 26 additions and 6 deletions
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32
api/setup/tables_update.inc.php
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@ -647,12 +647,32 @@ function api_upgrade19_1()
$max_endtime = $endtime->format(Api\DateTime::DATABASE);
// set timestamps in estimated update window to the one of the preceeding row
$GLOBALS['egw_setup']->db->query('UPDATE egw_history_log SET history_timestamp='.
'(SELECT history_timestamp FROM egw_history_log prev WHERE egw_history_log.history_id > prev.history_id AND prev.history_old_value != '.
$GLOBALS['egw_setup']->db->quote(Api\Storage\Tracking::DIFF_MARKER).' ORDER BY prev.history_id DESC LIMIT 1)'.
" WHERE history_timestamp BETWEEN '$broken_update_starttime' AND '$max_endtime'".
" AND history_old_value=".$GLOBALS['egw_setup']->db->quote(Api\Storage\Tracking::DIFF_MARKER),
__LINE__, __FILE__);
$prev_timestamp = '(SELECT history_timestamp FROM egw_history_log prev WHERE egw_history_log.history_id > prev.history_id AND prev.history_old_value != '.
$GLOBALS['egw_setup']->db->quote(Api\Storage\Tracking::DIFF_MARKER).' ORDER BY prev.history_id DESC LIMIT 1)';
// MariaDB before 10.3 could not update same table used in a sub-query (not sure about MySQL, so handle it like older MariaDB)
if ($GLOBALS['egw_setup']->db->Type === 'mysql' && (float)$$GLOBALS['egw_setup']->db->ServerInfo['version'] < 10.3)
{
// iterate over queried timestamps to update them from PHP
foreach($GLOBALS['egw_setup']->db->select('egw_history_log', "history_id,$prev_timestamp AS prev_timestamp", [
"history_timestamp BETWEEN '$broken_update_starttime' AND '$max_endtime'",
'history_old_value' => Api\Storage\Tracking::DIFF_MARKER,
], __LINE__, __FILE__) as $row)
{
$GLOBALS['egw_setup']->db->update('egw_history_log', [
'history_timestamp' => $row['prev_timestamp'],
], [
'history_id' => $row['history_id'],
], __LINE__, __FILE__);
}
}
else
{
$GLOBALS['egw_setup']->db->query("UPDATE egw_history_log SET history_timestamp=$prev_timestamp".
" WHERE history_timestamp BETWEEN '$broken_update_starttime' AND '$max_endtime'".
" AND history_old_value=".$GLOBALS['egw_setup']->db->quote(Api\Storage\Tracking::DIFF_MARKER),
__LINE__, __FILE__);
}
}
return $GLOBALS['setup_info']['api']['currentver'] = '19.1.001';
}