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authorSam <sam.saffron@gmail.com>2018-06-06 09:50:58 +1000
committerSam <sam.saffron@gmail.com>2018-06-06 09:50:58 +1000
commita46dcb7454b56c979cded85f2f4f875dcd2cfdf0 (patch)
tree7cb448f2d6764ecbfed081ab0263c6bbd726139b /activerecord/test/models/mentor.rb
parent32aa7cdd8f031dc756fdde3501efca7ff72bf576 (diff)
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PERF: avoid allocating column names where possible
When requesting columns names from database adapters AR:Result would dup/freeze column names, this prefers using fstrings which cuts down on repeat allocations Attributes that are retained keep these fstrings around for the long term Note, this has the highest impact on "short" result sets, eg: Topic.first where you can void allocating the number of columns * String.
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