[−][src]Module tari_storage::lmdb_store::db

Flags used when opening databases.

Structs

Flags used when opening databases.

CREATE	Create the named database if it doesn't exist. This option is not allowed in a read-only environment.
DUPFIXED	This flag may only be used in combination with `DUPSORT`. This option tells the library that the data items for this database are all the same size, which allows further optimizations in storage and retrieval. When all data items are the same size, the `get_multiple` and `next_multiple` cursor operations may be used to retrieve multiple items at once.
DUPSORT	Duplicate keys may be used in the database. (Or, from another perspective, keys may have multiple data items, stored in sorted order.) By default keys must be unique and may have only a single data item.
INTEGERDUP	This option specifies that duplicate data items are binary integers, similar to `INTEGERKEY` keys.
INTEGERKEY	Keys are binary integers in native byte order, either `libc::c_uint` or `libc::size_t`, and will be sorted as such. The keys must all be of the same size.
REVERSEDUP	This option specifies that duplicate data items should be compared as strings in reverse order.
REVERSEKEY	Keys are strings to be compared in reverse order, from the end of the strings to the beginning. By default, Keys are treated as strings and compared from beginning to end.