E.56. Release 9.3.1

E.56. Release 9.3.1
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Release date: 2013-10-10

This release contains a variety of fixes from 9.3.0. For information about new features in the 9.3 major release, see Section E.57 .

E.56.1. Migration to Version 9.3.1

A dump/restore is not required for those running 9.3.X.

However, if you use the hstore extension, see the first changelog entry.

Ensure new-in-9.3 JSON functionality is added to the hstore extension during an update (Andrew Dunstan)

Users who upgraded a pre-9.3 database containing hstore should execute
```
ALTER EXTENSION hstore UPDATE;
```
after installing 9.3.1, to add two new JSON functions and a cast. (If hstore is already up to date, this command does nothing.)
Fix memory leak when creating B-tree indexes on range columns (Heikki Linnakangas)
Fix memory leak caused by lo_open() failure (Heikki Linnakangas)
Serializable snapshot fixes (Kevin Grittner, Heikki Linnakangas)
Fix deadlock bug in libpq when using SSL (Stephen Frost)
Fix timeline handling bugs in pg_receivexlog (Heikki Linnakangas, Andrew Gierth)
Prevent CREATE FUNCTION from checking SET variables unless function body checking is enabled (Tom Lane)
Remove rare inaccurate warning during vacuum of index-less tables (Heikki Linnakangas)

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