TODO: Cache most recent query plan

In TODO is:CACHE:    * Cache most recent query plan(s) [prepare]
!--> I'm working on this. 

TODO.detail (Jan's idea): 
    I can think of the following construct:
       PREPARE optimizable-statement;
   That one will run parser/rewrite/planner, create a new memory   context with a unique identifier and  saves  the
querytree's  and  plan's  in  it.   Parameter values are identified by the   usual $n notation. The command returns the
identifier.
       EXECUTE QUERY identifier [value [, ...]];
   then get's back the prepared plan and querytree  by  the  id,   creates  an  executor  context  with  the given
valuesin the   parameter array and calls ExecutorRun() for them.
 
    .... etc (cut).                    Karel

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Karel Zak <zakkr@zf.jcu.cz>              http://home.zf.jcu.cz/~zakkr/

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