提交 991dfc07 authored 作者: Thomas Mueller's avatar Thomas Mueller

Documentation.

上级 2229f0ed
......@@ -18,12 +18,16 @@ Change Log
<h1>Change Log</h1>
<h2>Next Version (unreleased)</h2>
<ul><li>The index condition columnName IS NULL was not efficient when using a clustered index.
<ul><li>The Windows .bat files did not contain CR+LF.
</li><li>The LOB storage (when the system property h2.lobInDatabase is set) is now only initialized when needed.
</li><li>The index condition columnName IS NULL was not efficient when using a clustered index.
</li><li>The Recover tool did not work for databases larger than 2 GB.
</li><li>In memory database: outer joins with a condition "column is null" could return the wrong result.
</li><li>Temporary files were not created in the temporary directory of the system, but in the current working directory.
This affected temporary undo log files for read-only databases, temporary files for large result sets when using read-only databases,
and temporary lob files when storing LOBs in the database (system property h2.lobInDatabase).
This affected temporary undo log files for read-only databases, temporary files for large result sets when using read-only databases,
and temporary LOB files when storing LOBs in the database (system property h2.lobInDatabase).
When the setting h2.lobInDatabase is not set,
temporary LOB files are still stored in a sub-directory (.lobs.db/) of the current working directory.
</li><li>New experimental feature to speed up CREATE TABLE ... AS SELECT.
To enable the feature, set the system property h2.optimizeInsertFromSelect to true.
For large queries, performance can be doubled.
......
......@@ -658,4 +658,4 @@ skiing honor marketing sleeping dlucene timezones shifted analyzed insists
train joining bilingual existed extremely fog bordercolor overlapping
unlocking webkit dalvik recorded defrag marschall helping victor philippe
pyankov enctype multipart boundary mistake enlarge demonstrates aggregating
bypassing khtml doubled
bypassing khtml doubled inlined
Markdown 格式
0%
您添加了 0 到此讨论。请谨慎行事。
请先完成此评论的编辑!
注册 或者 后发表评论