Shulou(Shulou.com)06/01 Report--

The following figure is the structure of page, 8K space includes a header Page Header, a number of Item, each Item points to a record (Tuple), some Page initialization, on the end of page, reserved space for Special, Btree index page use, heap page does not have this part, directly is tuple. Of course, some Page do not need Special space, so they are not reserved.

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