结构体page_cur_t

/** Type of the index page */
typedef    byte        page_t;
/** Index page cursor */
typedef struct page_cur_struct    page_cur_t;

/** Index page cursor */

struct page_cur_struct{
    byte*        rec;    /*!< pointer to a record on page */
    buf_block_t*    block;    /*!< pointer to the block containing rec */
};