[HACKERS] Execution Plan

[alfranio correia junior]

Hi,

I have some questions on execution plans.
When are the following plans used ?

nodeFunctionscan.c   nodeTidscan.c

In particular, is the plan nodeBitmapHeapscan.c always used along with 
the nodeBitmapIndexscan.c ?

Please, let me know if there is a previous thread on this subject or any 
document available.

Best regards,

Alfranio.

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