On 7th of January (I know, it was quite some time ago, I apologize for delay) Itagaki Takahiro committed patch:
New system view pg_stat_replication displays activity of wal sender processes. Itagaki Takahiro and Simon Riggs.
Tag: waiting
Waiting for 9.1 – Unlogged tables
On 29th of December, Robert Haas committed interesting patch, which does:
Support unlogged tables. The contents of an unlogged table aren't WAL-logged; thus, they are not available on standby servers and are truncated whenever the database system enters recovery. Indexes on unlogged tables are also unlogged. Unlogged GiST indexes are not currently supported.
(edited commit message, due to this mail.
Waiting for 9.1 – KNNGIST
On 4th of December, Tom Lane committed really cool patch:
KNNGIST, otherwise known as order-by-operator support for GIST.
This commit represents a rather heavily editorialized version of Teodor's builtin_knngist_itself-0.8.2 and builtin_knngist_proc-0.8.1 patches. I redid the opclass API to add a separate Distance method instead of turning the Consistent method into an illogical mess, fixed some bit-rot in the rbtree interfaces, and generally worked over the code style and comments. There's still no non-code documentation to speak of, but I'll work on that separately. Some contrib-module changes are also yet to come (right now, point <-> point is the only KNN-ified operator). Teodor Sigaev and Tom Lane
Waiting for 9.1 – auth_delay
On 27th of November, Robert Haas committed patch which adds new, interesting contrib module:
New contrib module, auth_delay. KaiGai Kohei, with a few changes by me.
Waiting for 9.1 – format()
On 21st of November Robert Haas committed new patch, which adds new function:
Add new SQL function, format(text).
Currently, three conversion format specifiers are supported: %s for a string, %L for an SQL literal, and %I for an SQL identifier. The latter two are deliberately designed not to overlap with what sprintf() already supports, in case we want to add more of sprintf()'s functionality here later. Patch by Pavel Stehule, heavily revised by me. Reviewed by Jeff Janes and, in earlier versions, by Itagaki Takahiro and Tom Lane.
Waiting for 9.1 – Removed autocast footgun
On 8th of November, Tom Lane committed patch, which doesn't provide any new features, but removes one of the more annoying footguns in PostgreSQL:
Prevent invoking I/O conversion casts via functional/attribute notation. PG 8.4 added a built-in feature for casting pretty much any data type to string types (text, varchar, etc). We allowed this to work in any of the historically-allowed syntaxes: CAST(x AS text), x::text, text(x), or x.text. However, multiple complaints have shown that it's too easy to invoke such casts unintentionally in the latter two styles, particularly field selection. To cure the problem with the narrowest possible change of behavior, disallow use of I/O conversion casts from composite types to string types via functional/attribute syntax. The new functionality is still available via cast syntax. In passing, document the equivalence of functional and attribute syntax in a more visible place.
Waiting for 9.1 – adding values to enums
Finally, on 25th of October, Tom Lane committed patch which does:
Allow new values to be added to an existing enum type. After much expenditure of effort, we've got this to the point where the performance penalty is pretty minimal in typical cases. Andrew Dunstan, reviewed by Brendan Jurd, Dean Rasheed, and Tom Lane
Waiting for 9.1 – Suffix matching in pg_hba.conf
On 24th of October, Peter Eisentraut committed addition to his previous patch, which adds:
Support suffix matching of host names in pg_hba.conf A name starting with a dot can be used to match a suffix of the actual host name (e.g., .example.com matches foo.example.com).
Continue reading Waiting for 9.1 – Suffix matching in pg_hba.conf
Waiting for 9.1 – hostnames in pg_hba.conf
On 15th of October Peter Eisentraut committed patch (his own) which adds:
Support host names in pg_hba.conf Peter Eisentraut, reviewed by KaiGai Kohei and Tom Lane
Waiting for 9.1 – triggers on views
On 10th of October, Tom Lane committed patch by Deal Rasheed, which adds triggers on views:
Support triggers on views. This patch adds the SQL-standard concept of an INSTEAD OF trigger, which is fired instead of performing a physical insert/update/delete. The trigger function is passed the entire old and/or new rows of the view, and must figure out what to do to the underlying tables to implement the update. So this feature can be used to implement updatable views using trigger programming style rather than rule hacking. In passing, this patch corrects the names of some columns in the information_schema.triggers view. It seems the SQL committee renamed them somewhere between SQL:99 and SQL:2003. Dean Rasheed, reviewed by Bernd Helmle; some additional hacking by me.