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Use of sys_context changes execution plan

From: Paul Ansell <paul.ansell_at_totalise.co.uk>
Date: 5 Jul 2002 06:35:31 -0700
Message-ID: <d855f19c.0207050535.62241201@posting.google.com> 





I have a dynamically generated query which when executed with
hard-coded where clause values uses an execution plan that I am happy
with. However, when I replace the hard-coded values with calls to
sys_context ( in order to make use of bind variables ) a different,
inferior execution plan is chosen. Any ideas why this should happen?
Received on Fri Jul 05 2002 - 08:35:31 CDT












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