Re: Cursors and Transactions, why?

Eric Ridge wrote:
> Is the tuplestore basically just an array of ItemPointer-s?  In mean,
> it's not a copy of each entire row, is it?

Yup, it is copied:

src/backend/utils/sort/tuplestore.c:tuplestore_puttuple()
8<--------------------------------------------------------
/*
  * Accept one tuple and append it to the tuplestore.
  *
  * Note that the input tuple is always copied; the caller need not save
  * it.
8<--------------------------------------------------------

Joe