B+Tree Index Pages
Status get_page_no(const void *key, AttrType key_type, PageId &pageNo)
sets pageNo to PageId of next page in search
standard search
work through records on page comparing each
uses keyCompare, get_key_data
bool get_sibling(const void *key, AttrType key_type, PageId &pageNo, int &left)
similar to get_page_no but returns pageNo of sibling page, sets left if left sibling
uses keyCompare, get_key_data, getLeftLink
returns true if sibling found, false otherwise