The simplest way to look at it is Session B was lock out when the Drop table command was issued from Session A. Now when session B finally got its chance to drop/delete the table it was already gone .
What kind error were you expecting from Postgresql to Return when it can't find the table???
In the future please don't cross post to multiple lists.
---- Message from raghavendra t <raagavendra.rao@xxxxxxxxx> at 04-03-2010 10:08:11 PM ------
step 6 - Issue the commit in Session Apostgres=# commit;Step -7 now we can the see the error in the session BERROR: cache lookup failed for relation X
Could plese tell me, why this is generated and what is the cause.Thanks in advanceRegardsRaghavendra
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