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tcl-lmdb - Tcl interface to the Lightning Memory-Mapped Database
About
This is the Lightning Memory-Mapped Database (LMDB) extension for Tcl using the Tcl Extension Architecture (TEA).
LMDB is a Btree-based database management library with an API similar to BerkeleyDB. The library is thread-aware and supports concurrent read/write access from multiple processes and threads. The DB structure is multi-versioned, and data pages use a copy-on-write strategy, which also provides resistance to corruption and eliminates the need for any recovery procedures. The database is exposed in a memory map, requiring no page cache layer of its own. This extension provides an easy to use interface for accessing LMDB database files from Tcl.
Change Log
- generic/tclmdb.c: Fix cursor_handle renew issue. (update)
- generic/tclmdb.c: Implement dbi_handle del command behavior.
一些說明
加強 dbi_handle del 的功能。希望我網頁的說明足夠清楚。
The command dbi_handle del delete items from a database. If the database supports sorted duplicates and the data parameter is "" (empty string), all of the duplicate data items for the key will be deleted. Otherwise, if the data parameter is non-NULL only the matching data item will be deleted.
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