25 Jul
2012
25 Jul
'12
8:10 a.m.
Howard Chu writes:
Append mode now does no key comparisons, input must be in sorted order. page_split was not updating cursor parents correctly.MDB_APPEND mode is meant to be used for bulk loading of pre-sorted keys. (e.g., if someone wanted to write an mdb_load utility and the corresponding mdb_dump program, you would use this mode for the loader.) New key/data pairs are simply appended to the last page of the database, with no key comparisons at all. (...)
As a user, I'd feel safer with a mode which kept the DB consistent: Return failure if (key to append) < (current max key). Presumably that'd mean 1 key comparison per added entry. And maybe giving the root pages a reference to the last key, I don't know.
Does this affect OpenLDAP (slapadd -q) users, or should I be saying "as a libmdb user"?
--
Hallvard