date and time created 91/09/11 16:29:28 by bostic

use intermediate on realloc so can recover from failure

drop exact flag (always exact if found at all); increment/decrement
parent pages while searching the tree instead of waiting

redo cursor implementation, __rec_search interface

check user flags; minor error changes

check user flags; redo cursor implementation; recno doesn't care about
exactness of search results; do R_NOOVERWRITE at user interface level;
don't do parent page increments here

redo cursor deletion; specify delete to __rec_search, don't do parent
decrements here any more; minor cleanups

truncate when finished writing the file

take const for key argument; specify SEARCH to __rec_search

add __rec_dleaf; __rec_get takes const key; __rec_search takes argument
for modifying parent pages during search

date and time created 91/09/11 16:17:35 by bostic

use dbopen, not hash_open

use dbopen, not hash_open

use dbopen, not hash_open

use dbopen, not hash_open

use dbopen, not hash_open

use dbopen, not hash_open

use dbopen, not hash_open

make dbm_pagfno fail on compile, not at run-time

return -1 on error, not 1 in __put_page

hash_open -> __hash_open; flush_meta checked wrong return value for
__put_page; formatting typo

remove __hash_open stub, change dbpanic get call to take const key

bump the hash version to 2; (allocate overflow pages beyond EOF)

lint

lint