Allows applications to select which security libraries to initialize. If your application initializes libssl and/or libcrypto libraries and libpq is built with SSL support, you should call PG .init_openssl() to tell libpq that the libssl and/or libcrypto libraries have been initialized by your application, so.
Get the version of the libpq library in use. The number is formed by converting the major, minor, and revision numbers into two-decimal- digit numbers and appending them together.
I just ran into this running the rails new command on my Mac (Rails 5, High-Sierra) with the –database=postgresql option turned on. This is kind of a restating of things mentioned in earlier answers, but I think it might be helpful.
With this Gemfile: source ‘https://rubygems.org’ ruby ‘1.9.3’ gem ‘rails’, ‘3.2.12’ gem ‘heroku’ gem newrelic_rpm, ~> 3.5.5.38 gem airbrake gem rack-timeout …
EM::PG . One more EventMachine wrapper for Postgresql pg -lib. Features. Fully async including connect and right usage of #busy and #consume_input; All results are standard deferrable objects; Distinct exceptions hierarchy; Wrapper for Green and adapter fot Sequel — prepor/green-em- pg ; Wrapper for EM-Synhrony — fl00r/sync-em- pg . Usage, 7/6/2020 · $ sudo gem install pg We install the Ruby pg module, which is the Ruby interface to the PostgreSQL database. Starting and stopping PostgreSQL. In the next section, we are going to show how to start the PostgreSQL database, stop it, and query its status. $ sudo service postgresql start * Starting PostgreSQL 9.3 database server [ OK ], Returns true if the underlying C struct will be cleared at the end of a callback. This applies only to Result objects received by the block to PG ::Cinnection#set_notice_receiver .. All other Result objects are automatically cleared by the GC when the object is no longer in use or manually by PG ::Result#clear.
7/24/2018 · The silence of the Ruby exceptions : a Rails/ PostgreSQL database transaction thriller . July 24, 2018. … Take a look at the isolator gem that will help you make sure your side-effects are well isolated. … SELECT pg _advisory_lock_shared (42, user. id); Shared locks may be obtained simultaneously by as many sessions as you want.
