On 26th of January, Magnus Hagander committed patch:
Adds a counter that tracks number of deadlocks that occurred in each database to pg_stat_database. Magnus Hagander, reviewed by Jaime Casanova
Tag: postgresql
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
Continue reading Waiting for 9.2 – temporary file stats per database
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
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
Waiting for 9.2 – ALTER IF EXISTS
On 23th of January, Simon Riggs committed patch:
ALTER <thing> [IF EXISTS] ... allows silent DDL if required, e.g. ALTER FOREIGN TABLE IF EXISTS foo RENAME TO bar Pavel Stehule
Change in anonymization of plans on explain.depesz.com
As you perhaps know, explain.depesz.com has anonymization feature.
Couple of days ago Filip contacted me and sent a patch that stopped anonymization of typecasts.
I thought about the patch, and what it achieves, changed it's internals, but kept the effect. And today, it got released.
Continue reading Change in anonymization of plans on explain.depesz.com
Some new tools for PostgreSQL or around PostgreSQL
During last months I wrote some tools to help me with my daily duties.
I'd like to let you know you about them, as you might find them useful.
So, here we go:
Continue reading Some new tools for PostgreSQL or around PostgreSQL
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 SmithContinue reading Waiting for 9.2 – split of current_query in pg_stat_activity
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
Continue reading Waiting for 9.2 – NULLS from pg_*_size() functions
OmniPITR 0.3.0
Just released version 0.3.0 of our tool for handling WAL based replication in PostgreSQL – OmniPITR.
Version jump is related to addition of another tool – omnipitr-synch. This tool is used to copy PostgreSQL data dir (including all tablespaces of course) to remote location(s).
While this process is usually simple (call pg_start_backup(), transfer data, call pg_stop_backup()), thanks to the tool it can be wrapped as single call, with standardized logging, and tested logic. It also makes it trivial, and cheap, to setup more than one new slave at a time, without need to read data off master more than once.