toast error after pg_upgrade 9.0.4 -> 9.1rc1

<div style="font-family: Verdana; font-size: 12pt; color: #000000">After running an essentially uneventful* pg_upgrade
from9.0.4 -> 9.1rc1, we are seeing some toast errors logged on the new cluster:<br /><br />All are of this pattern:
ERROR: missing chunk number 0 for toast value 130087 in pg_toast_34735<br /><br />Have seen the same pattern for a few
ofthe databases in the 9.1rc1 cluster, and all as a result of a select on a usr table (the offending SELECT happens to
bethe first one any of these DBs sees, as it's the first step in a user authentication process). SELECT count(*) does
notproduce an error.<br /><br />*almost uneventful: We also saw messages that the destination cluster did not have one
ofour schema - (of course it didn't!) - I didn't realize pg_upgrade doesn't 'do' schema?<br /><br />Lou Picciano<br
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