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The PostgreSQL adapter works both with the native C (http://ruby.scripting.ca/postgres/) and the pure Ruby (available both as gem and from http://rubyforge.org/frs/?group_id=234&release_id=1944) drivers.

Options:

  • :host - Defaults to "localhost".
  • :port - Defaults to 5432.
  • :username - Defaults to nothing.
  • :password - Defaults to nothing.
  • :database - The name of the database. No default, must be provided.
  • :schema_search_path - An optional schema search path for the connection given as a string of comma-separated schema names. This is backward-compatible with the :schema_order option.
  • :encoding - An optional client encoding that is used in a SET client_encoding TO <encoding> call on the connection.
  • :min_messages - An optional client min messages that is used in a SET client_min_messages TO <min_messages> call on the connection.
  • :allow_concurrency - If true, use async query methods so Ruby threads don’t deadlock; otherwise, use blocking query methods.

Constants

BYTEA_COLUMN_TYPE_OID = 17

MONEY_COLUMN_TYPE_OID = 790

NATIVE_DATABASE_TYPES = { :primary_key => "serial primary key".freeze, :string => { :name => "character varying", :limit => 255 }, :text => { :name => "text" }, :integer => { :name => "integer" }, :float => { :name => "float" }, :decimal => { :name => "decimal" }, :datetime => { :name => "timestamp" }, :timestamp => { :name => "timestamp" }, :time => { :name => "time" }, :date => { :name => "date" }, :binary => { :name => "bytea" }, :boolean => { :name => "boolean" }, :xml => { :name => "xml" }

ADAPTER_NAME = 'PostgreSQL'.freeze

Attributes

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