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caches: use .refresh() instead of .invalidate() - .invalidate() does a delete of cached valued under a key, which means in previous logic we delete, get_or_create, and compute. - .refresh() is simply replacing exising key with newly computed values, this creates less locks, and it's faster.

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using-postgresql.rst
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PostgreSQL

To use a PostgreSQL database, you should install and configure the database before installing |RCV|. This is because during |RCV| installation you will setup the connection to your PostgreSQL database. To work with PostgreSQL, use the following steps:

  1. Depending on your |os|, install a PostgreSQL database following the appropriate instructions from the PostgreSQL website.
  2. Configure the database with a username and password, which you will use with |RCV|.
  3. Install |RCV|, and during installation select PostgreSQL as your database.
  4. Enter the following information during the database setup:
    • Your network IP Address
    • The port number for PostgreSQL access; the default port is 5434
    • Your database username
    • Your database password
    • A new database name