Hi hackers
In the postgresBeginForeignScan I see rather complex logic just before
GetUserMapping call.
This is all about finding serverid.
/*
* Identify which user to do the remote access as. This should
match what
* ExecCheckPermissions() does.
*/
userid = OidIsValid(fsplan->checkAsUser) ? fsplan->checkAsUser :
GetUserId();
if (fsplan->scan.scanrelid > 0)
rtindex = fsplan->scan.scanrelid;
else
rtindex = bms_next_member(fsplan->fs_base_relids, -1);
rte = exec_rt_fetch(rtindex, estate);
/* Get info about foreign table. */
table = GetForeignTable(rte->relid);
user = GetUserMapping(userid, table->serverid);
Seems like we have the required serverid in ForeignScan::fs_server already.
Why not to use it?
Best regards
Anton Ratundalov
