Full support for IPv6 connections and IPv6 address data types
SSL
- Major improvements in SSL performance and security
+ Major improvements in SSL performance and reliability
Index Growth Prevention
- Allow free space map to efficiently reused empty index pages,
+ Allow free space map to efficiently reuse empty index pages,
and other free space management improvements.
Standards Compliance
IN/NOT IN subqueries now perform as efficiently as joins
Improved GROUP BY processing by using hash buckets
New multi-key hash join capability
- ANSI joins are now fully optimized
- Faster regular expression code
+ ANSI joins are now better optimized
+ Faster and more powerful regular expression code
Function-inlining for simple SQL functions
Holdable Cursors
data from any previous release.
Observe the following incompatibilities:
- * The server-side autocommit setting was removed an reimplemented
+ * The server-side autocommit setting was removed and reimplemented
in client applications and languages.
- * Error message wording has changed dramatically in this release,
+ * Error message wording has changed substantially in this release,
and error codes have been added.
- * ANSI joins may behave differently because they are now fully optimized
+ * ANSI joins may behave differently because they are now better optimized
* A number of server variables have been renamed for clarity
* MOVE/FETCH 0 now does nothing; return value of MOVE/FETCH 1/0
varies based on the current offset in the cursor
* Trailing spaces are now trimmed when converting from CHAR(n) to
VARCHAR(n)/TEXT
* FLOAT(p) now measures 'p' in bits, not digits
- * Date values now must match the ordering specified by DateStyle
+ * Ambiguous date values now must match the ordering specified by DateStyle
* The oidrand(), oidsrand(), and userfntest() functions have been
removed.