提交 a99980f9 authored 作者: Thomas Mueller's avatar Thomas Mueller

New experimental page store.

上级 e5ac2ada
...@@ -18,7 +18,12 @@ Change Log ...@@ -18,7 +18,12 @@ Change Log
<h1>Change Log</h1> <h1>Change Log</h1>
<h2>Next Version (unreleased)</h2> <h2>Next Version (unreleased)</h2>
<ul><li>ALTER TABLE could throw an exception "object already exists" in some cases. <ul><li>The new storage mechanism is now alpha quality. To try it out, set the system property
"h2.pageStore" to "true" (java -Dh2.pageStore=true). There are still bugs to be found and fixed,
for example inserting many rows references a lot of main memory. Performance is currently
about the same as with the regular storage mechanism, but the database file size is smaller.
The file format is not stable yet.
</li><li>ALTER TABLE could throw an exception "object already exists" in some cases.
</li><li>Views: in some situations, an ArrayIndexOutOfBoundsException </li><li>Views: in some situations, an ArrayIndexOutOfBoundsException
was thrown when using the same view concurrently. was thrown when using the same view concurrently.
</li><li>java.util.UUID is now supported in PreparedStatement.setObject and user defined Java functions. </li><li>java.util.UUID is now supported in PreparedStatement.setObject and user defined Java functions.
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...@@ -290,7 +290,8 @@ java org.h2.test.TestAll timer ...@@ -290,7 +290,8 @@ java org.h2.test.TestAll timer
// 2009-05-18: 18 tests fail with page store (first loop) // 2009-05-18: 18 tests fail with page store (first loop)
// 2009-05-30: 15 tests fail with page store (first loop) // 2009-05-30: 15 tests fail with page store (first loop)
// 2009-06-19: 10 tests fail with page store (first loop) // 2009-06-19: 10 tests fail with page store (first loop)
// 2009-06-24: 3 tests fail with page store (first loop) // 2009-06-26: 0 tests fail with page store (first loop)
// int pageStore;
// System.setProperty("h2.pageStore", "true"); // System.setProperty("h2.pageStore", "true");
/* /*
......
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