DOKK / manpages / debian 10 / lmdb-doc / mdb_dbi_open.3.en
mdb_dbi_open(3) Library Functions Manual mdb_dbi_open(3)

mdb_dbi_open


#define MDB_REVERSEKEY 0x02
#define MDB_DUPSORT 0x04
#define MDB_INTEGERKEY 0x08
#define MDB_DUPFIXED 0x10
#define MDB_INTEGERDUP 0x20
#define MDB_REVERSEDUP 0x40
#define MDB_CREATE 0x40000

use reverse string keys

use sorted duplicates

numeric keys in native byte order: either unsigned int or size_t. The keys must all be of the same size.

with MDB_DUPSORT, sorted dup items have fixed size

with MDB_DUPSORT, dups are MDB_INTEGERKEY-style integers

with MDB_DUPSORT, use reverse string dups

create DB if not already existing

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Mon Jul 16 2018 LMDB