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Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 42 |
1 files changed, 42 insertions, 0 deletions
@@ -1,3 +1,45 @@ +WiredTiger release 1.6.4, 2013-08-20 +------------------------------------ + +This is primarily a bugfix and performance tuning release. The main changes are: + +* Make prefix compression of keys conditional on the amount of space saved. + A database format change was required for this enhancement. See upgrading + documentation for details. [#624] + +* The default behavior of the wt utility's load command has been changed to + overwrite existing data. + +* Add a WT_SESSION.create prefix_compression_min configuration option with a + default value of 4. [#624] and [#624] + +* Fix "make install" of Python API. [#598] + +* Require platform support for atomic read/write of 64 bit values. [#553] + +* Support transaction semantics for custom data source implementations. Enhance + Memrata data source to support transactions. + +* Changes to the wtperf testing tool related to how configuration options are + specified. + +* Enhance cursor key/value memory management to be more efficient, consistent, + and have stricter checking of inputs and outputs. + +* Increase the likelihood of being able to evict hot pages. [#604] + +* Reference on-page keys instead of copying them to allocated memory. This + saves space in the cache and overhead when reading pages into cache. + [#592] and [#600] + +* Add a btree search optimization that skips matching prefixes. [#595] + +* Turn off Huffman encoding for keys on row-store internal pages. [#592] + +* Add concurrent logging infrastructure that will be used to support write + ahead logging in a future release. + + WiredTiger release 1.6.3, 2013-07-12 ------------------------------------ |