lock timeout in pgsql 7.3.1

I am having a little problem with STATEMENT_TIMEOUT, i
dont know why this is happening....

there are 2 users, first user have selected a record
using FOR UPDATE.

second user have selected 5 records using FOR UPDATE.
but when the second user tries to select the record
which is locked by the first user. Pgsql gives the
error "ERROR: query was cancelled." and rollbacks the
transaction which unlocks all the records locked by
the second user.

Is there any way that pgsql only gives the error and
keep the status of the transction as it is?

thanx in advance.


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