5.13.0.txt

doc/release_notes/5.13.0.txt
Last Update: 2018-10-01 07:21:49 -0700

New Features

  • A constant_sql_override Database extension has been added, allowing for overriding the SQL used by constants such as Sequel::CURRENT_TIMESTAMP. This can be used to force CURRENT_TIMESTAMP to be literalized at a particular time zone:

    DB.extension :constant_sql_override
    DB.set_constant_sql(Sequel::CURRENT_TIMESTAMP,
      "CURRENT_TIMESTAMP AT TIME ZONE 'UTC'")
  • Prepared statements now support the :single_value type, which returns the first column value in the dataset.

    prep_stmt = DB[:table].select(:column).prepare(:single_value, :ps)
    prep_stmt.call
    # PREPARE ps AS SELECT column FROM table LIMIT 1;
    # EXECUTE ps;
    # => 42

Other Improvements

  • Dataset#from_self will no longer use a cached dataset if any options are given, as that can result in incorrect behavior.

  • Model.all in the static_cache plugin now accepts a block, mirroring the API when the static_cache plugin is not used.