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`eager_load` performs a single query using a `LEFT OUTER JOIN` to load the associations. Loading the associations in a join can result in many rows that contain redundant data and it performs poorly at scale. With `includes` a separate query is performed for each association, unless a join is required by conditions. Co-authored-by: Rafael Mendonça França <rafael@franca.dev> |
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dummy | ||
fixtures | ||
integration | ||
models | ||
system | ||
template | ||
unit | ||
application_system_test_case.rb | ||
javascript_package_test.rb | ||
test_helper.rb |