June 2024
Intermediate to advanced
456 pages
11h 34m
English
Content preview from High Performance PostgreSQL for RailsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Introducing Database Views for Rideshare
In this section, you’ll work with database views in PostgreSQL and manage them from Rails.
A database view encapsulates[144] a query, gives it a name, and is stored as an object within PostgreSQL. The query text itself is stored, not the query results. Each invocation runs as a “live” query.
Database views are not supported natively by Active Record, however, they can be integrated into Rails using a Ruby gem.
Since views have a query definition that may change over time, you’ll evolve your database views in Rideshare the same way that you evolve other database objects like tables. PostgreSQL views do not have a versioning concept, so versioning will be added.
Database views, while not offering performance ...
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