Waiting for 9.2 – JSON

On 31st of January, Robert Haas committed patch:

Like the XML data type, we simply store JSON data as text, after checking
that it is valid.  More complex operations such as canonicalization and
comparison may come later, but this is enough for not.
 
There are a few open issues here, such as whether we should attempt to
detect UTF-8 surrogate pairs represented as \uXXXX\uYYYY, but this gets
the basic framework in place.

and then, 3 days later, Andrew Dunstan committed another one, related:

Also move the escape_json function from explain.c to json.c where it
seems to belong.
 
Andrew Dunstan, Reviewd by Abhijit Menon-Sen.

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Waiting for 9.2 – temporary file stats per database

On 26th of January, Magnus Hagander committed patch:

Add counters for number and size of temporary files used
for spill-to-disk queries for each database to the
pg_stat_database view.
 
Tomas Vondra, review by Magnus Hagander

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Waiting for 9.2 – pg_basebackup from slave

On 25th of January, Simon Riggs committed patch:

Allow pg_basebackup from standby node with safety checking.
Base backup follows recommended procedure, plus goes to great
lengths to ensure that partial page writes are avoided.
 
Jun Ishizuka and Fujii Masao, with minor modifications

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Waiting for 9.2 – Trigger Depth

On 25th of January, Alvaro Herrera committed patch:

Add pg_trigger_depth() function
 
This reports the depth level of triggers currently in execution, or zero
if not called from inside a trigger.
 
No catversion bump in this patch, but you have to initdb if you want
access to the new function.
 
Author: Kevin Grittner

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Waiting for 9.2 – split of current_query in pg_stat_activity

On 19t of January, Magnus Hagander committed patch:

Separate state from query string in pg_stat_activity
 
This separates the state (running/idle/idleintransaction etc) into
it's own field ("state"), and leaves the query field containing just
query text.
 
The query text will now mean "current query" when a query is running
and "last query" in other states. Accordingly,the field has been
renamed from current_query to query.
 
Since backwards compatibility was broken anyway to make that, the procpid
field has also been renamed to pid - along with the same field in
pg_stat_replication for consistency.
 
Scott Mead and Magnus Hagander, review work from Greg Smith

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Waiting for 9.2 – NULLS from pg_*_size() functions

On 19t of January, Heikki Linnakangas committed patch:

Make pg_relation_size() and friends return NULL if the object doesn't exist.
 
That avoids errors when the functions are used in queries like "SELECT
pg_relation_size(oid) FROM pg_class", and a table is dropped concurrently.
 
Phil Sorber

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Waiting for 9.2 – excluding data of table from dump

On 14h of December, Andrew Dunstan committed patch:

Add --exclude-table-data option to pg_dump.
 
Andrew Dunstan, reviewed by Josh Berkus, Robert Haas and Peter Geoghegan.
 
This allows dumping of a table definition but not its data, on a per table basis.
Table name patterns are supported just as for --exclude-table.

Continue reading Waiting for 9.2 – excluding data of table from dump