[EMAIL PROTECTED] wrote:
Hi,

        Can anybody tell me how can I implement data Caching in the
shared memory using PostgreSQL.

PostgreSQL, like most other DBMS, caches data pages in shared memory. What exactly are you trying to accomplish? Are you having a performance problem?

--
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com

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TIP 9: In versions below 8.0, the planner will ignore your desire to
      choose an index scan if your joining column's datatypes do not
      match

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