Reword alpha release note item on SSI.

Per Josh Berkus; some additional explanatory text by me.
This commit is contained in:
Robert Haas 2011-03-07 13:57:06 -05:00
parent c74d3aceb9
commit bcf85e3f44

View File

@ -196,7 +196,14 @@
<listitem>
<para>
<emphasis>Implement a truly serializable isolation level</emphasis>
<emphasis>Implement Serializable Snapshot Isolation, in order to
provide a more robust serializable transaction mode.</emphasis>
</para>
<para>
In previous releases, the REPEATABLE READ and SERIALIZABLE isolation
levels were identical. The historical behavior of REPEATABLE READ is
unchanged in this release, but SERIALIZABLE now provides stronger
guarantees.
</para>
</listitem>