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| author | Sam <sam.saffron@gmail.com> | 2018-06-06 09:50:58 +1000 |
|---|---|---|
| committer | Sam <sam.saffron@gmail.com> | 2018-06-06 09:50:58 +1000 |
| commit | a46dcb7454b56c979cded85f2f4f875dcd2cfdf0 (patch) | |
| tree | 7cb448f2d6764ecbfed081ab0263c6bbd726139b /activerecord/test/models/mentor.rb | |
| parent | 32aa7cdd8f031dc756fdde3501efca7ff72bf576 (diff) | |
| download | rails-a46dcb7454b56c979cded85f2f4f875dcd2cfdf0.tar.gz rails-a46dcb7454b56c979cded85f2f4f875dcd2cfdf0.tar.bz2 rails-a46dcb7454b56c979cded85f2f4f875dcd2cfdf0.zip | |
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.
Diffstat (limited to 'activerecord/test/models/mentor.rb')
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