History - pg: The Ruby Interface to PostgreSQL

## v0.17.1 [2013-12-18] Michael Granger <ged@FaerieMUD.org>¶ ↑

Bugfixes:

- Fix compatibility with signal handlers defined in Ruby. This reverts cancelation of queries running on top of the blocking libpq API (like Connection#exec) in case of signals. As an alternative the async_exec can be used, which is reverted to use the non-blocking API, again.

- Wrap PQcancel to be called without GVL. It internally waits for the canceling connection.

Documentation fixes:

- Fix documentation for PG::Connection.conndefaults.

## v0.17.0 [2013-09-15] Michael Granger <ged@FaerieMUD.org>¶ ↑

Bugfixes:

- Fix crash by calling PQsend* and PQisBusy without GVL (#171).

Enhancements:

- Add method PG::Connection#copy_data.

- Add a Gemfile to allow installation of dependencies with bundler.

- Add compatibility with rake-compiler-dev-box.

- Return self from PG::Result#check instead of nil. This allows to stack method calls.

## v0.16.0 [2013-07-22] Michael Granger <ged@FaerieMUD.org>¶ ↑

Bugfixes:

- Avoid warnings about uninitialized instance variables.

- Use a more standard method of adding library and include directories. This fixes build on AIX (Github #7) and Solaris (#164).

- Cancel the running query, if a thread is about to be killed (e.g. by CTRL-C).

- Fix GVL issue with wait_for_notify/notifies and notice callbacks.

- Set proper encoding on the string returned by quote_ident, escape_literal and escape_identifier (#163).

- Use nil as PG::Error#result in case of a NULL-result from libpq (#166).

- Recalculate the timeout of conn#wait_for_notify and conn#block in case of socket events that require re-runs of select().

Documentation fixes:

- Fix non working example for PG::Result#error_field.

Enhancements:

- Add unique exception classes for each PostgreSQL error type (#5).

- Return result of the block in conn#transaction instead of nil (#158).

- Allow 'rake compile' and 'rake gem' on non mercurial repos.

- Add support for PG_DIAG_*_NAME error fields of PostgreSQL-9.3 (#161).

## v0.15.1 [2013-04-08] Michael Granger <ged@FaerieMUD.org>¶ ↑

Bugfixes:

- Shorten application_name to avoid warnings about truncated identifier.

## v0.15.0 [2013-03-03] Michael Granger <ged@FaerieMUD.org>¶ ↑

Bugfixes:

- Fix segfault in PG::Result#field_values when called with non String value.

- Fix encoding of messages delivered by notice callbacks.

- Fix text encoding for Connection#wait_for_notify and Connection#notifies.

- Fix 'Bad file descriptor' problems under Windows: wrong behaviour of wait_for_notify() and timeout handling of block on Ruby 1.9.

Documentation fixes:

- conn#socket() can not be used with IO.for_fd() on Windows.

Enhancements:

- Tested under Ruby 2.0.0p0.

- Add single row mode of PostgreSQL 9.2.

- Set fallback_application_name to programm name $0. Thanks to Will Leinweber for the patch.

- Release Ruby's GVL while calls to blocking libpq functions to allow better concurrency in threaded applications.

- Refactor different variants of waiting for the connection socket.

- Make use of rb_thread_fd_select() on Ruby 1.9 and avoid deprecated rb_thread_select().

- Add an example of how to insert array data using a prepared statement (#145).

- Add continous integration tests on travis-ci.org.

- Add PG::Result#each_row for iterative over result sets by row. Thanks to Aaron Patterson for the patch.

- Add a PG::Connection#socket_io method for fetching a (non-autoclosing) IO object for the connection's socket.

Specs:

- Fix various specs to run on older PostgreSQL and Ruby versions.

- Avoid fork() in specs to allow usage on Windows and JRuby.

## v0.14.1 [2012-09-02] Michael Granger <ged@FaerieMUD.org>¶ ↑

Important bugfix:

- Fix stack overflow bug in PG::Result#values and column_values (#135). Thanks to everyone who reported the bug, and Lars Kanis especially for figuring out the problem.

PostgreSQL 9.2 beta fixes:

- Recognize PGRES_SINGLE_TUPLE as OK when checking PGresult (Jeremy Evans)

Documentation fixes:

- Add note about the usage scope of the result object received by the set_notice_receiver block. (Lars Kanis)

- Add PGRES_COPY_BOTH to documentation of PG::Result#result_status. (Lars Kanis)

- Add some documentation to PG::Result#fnumber (fix for #139)

## v0.14.0 [2012-06-17] Michael Granger <ged@FaerieMUD.org>¶ ↑

Bugfixes:

    #47, #104

New Methods for PostgreSQL 9 and async API support: PG

- ::library_version

PG::Connection

- ::ping

- escape_literal

- escape_identifier

- set_default_encoding

PG::Result

- check

New Samples:

This release also comes with a collection of contributed sample scripts for doing resource-utilization reports, graphing database statistics, monitoring for replication lag, shipping WAL files for replication, automated tablespace partitioning, etc. See the samples/ directory.

## v0.13.2 [2012-02-22] Michael Granger <ged@FaerieMUD.org>¶ ↑

- Make builds against PostgreSQL earlier than 8.3 fail with a descriptive message instead of a compile failure.

## v0.13.1 [2012-02-12] Michael Granger <ged@FaerieMUD.org>¶ ↑

- Made use of a finished PG::Connection raise a PG::Error instead of a fatal error (#110).

- Added missing BSDL license file (#108)

## v0.13.0 [2012-02-09] Michael Granger <ged@FaerieMUD.org>¶ ↑

Reorganization of modules/classes to be better Ruby citizens (with backward-compatible aliases):

- Created toplevel namespace 'PG' to correspond with the gem name.

- Renamed PGconn to PG::Connection (with ::PGconn alias)

- Renamed PGresult to PG::Result (with ::PGresult alias)

- Renamed PGError to PG::Error (with ::PGError alias)

- Declare all constants inside PG::Constants, then include them in PG::Connection and PG::Result for backward-compatibility, and in PG for convenience.

- Split the extension source up by class/module.

- Removed old compatibility code for PostgreSQL versions < 8.3

Documentation:

- Clarified licensing, updated to Ruby 1.9's license.

- Merged authors list, added some missing people to the Contributor's list.

- Cleaned up the sample/ directory

- Making contact info a bit clearer, link to the Google+ page and the mailing list

Enhancements:

- Added a convenience method: PG.connect -> PG::Connection.new

Bugfixes:

- Fixed LATIN5-LATIN10 Postgres<->Ruby encoding conversions

## v0.12.2 [2012-01-03] Michael Granger <ged@FaerieMUD.org>¶ ↑

- Fix for the 1.8.7 breakage introduced by the st.h fix for alternative Ruby implementations (#97 and #98). Thanks to Lars Kanis for the patch.

- Encode error messages with the connection's encoding under 1.9 (#96)

## v0.12.1 [2011-12-14] Michael Granger <ged@FaerieMUD.org>¶ ↑

- Made rake-compiler a dev dependency, as Rubygems doesn't use the Rakefile for compiling the extension. Thanks to eolamey@bitbucket and Jeremy Evans for pointing this out.

- Added an explicit include for ruby/st.h for implementations that need it (fixes #95).

## v0.12.0 [2011-12-07] Michael Granger <ged@FaerieMUD.org>¶ ↑

- PG::Connection#wait_for_notify

  - send nil as the payload argument if the NOTIFY didn't have one.

  - accept a nil argument for no timeout (Sequel support)

  - Fixed API docs

  - Taint and encode event name and payload

- Handle errors while rb_thread_select()ing in PG::Connection#block. (Brian Weaver).

- Fixes for Win32 async queries (Rafał Bigaj)

- Memory leak fixed: Closing opened WSA event. (rafal)

- Fixes for #66 Win32 asynchronous queries hang on connection error. (rafal)

- Fixed a typo in PG::Connection#error_message's documentation

- fixing unused variable warnings for ruby 1.9.3 (Aaron Patterson)

- Build system bugfixes

- Converted to Hoe

- Updates for the Win32 binary gem builds (Lars Kanis)

## v0.11.0 [2011-02-09] Michael Granger <ged@FaerieMUD.org>¶ ↑

Enhancements:

- Added a PG::Result#values method to fetch all result rows as an Array of Arrays. Thanks to Jason Yanowitz (JYanowitz at enovafinancial dot com) for the patch.

## v0.10.1 [2011-01-19] Michael Granger <ged@FaerieMUD.org>¶ ↑

Bugfixes:

- Add an include guard for pg.h

- Simplify the common case require of the ext

- Include the extconf header

- Fix compatibility with versions of PostgreSQL without PQgetCancel. (fixes #36)

- Fix require for natively-compiled extension under Windows. (fixes #55)

- Change rb_yield_splat() to rb_yield_values() for compatibility with Rubinius. (fixes #54)

## v0.10.0 [2010-12-01] Michael Granger <ged@FaerieMUD.org>¶ ↑

Enhancements:

- Added support for the payload of NOTIFY events (w/Mahlon E. Smith)

- Updated the build system with Rubygems suggestions from RubyConf 2010

Bugfixes:

- Fixed issue with PG::Connection#wait_for_notify that caused it to miss notifications that happened after the LISTEN but before the wait_for_notify.

## v0.9.0 [2010-02-28] Michael Granger <ged@FaerieMUD.org>¶ ↑

Bugfixes.

## v0.8.0 [2009-03-28] Jeff Davis <davis.jeffrey@gmail.com>¶ ↑

Bugfixes, better Windows support.