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| author | Jade Rubick <jade@newrelic.com> | 2011-12-05 10:32:56 -0800 |
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| committer | Jade Rubick <jade@newrelic.com> | 2011-12-05 11:20:10 -0800 |
| commit | 73a331c2acfce971aa2dda8e72af5edc6867e344 (patch) | |
| tree | dfa0b68f06f76da054fc2f410282308769b62c7c /tools | |
| parent | f6cc4fd7a251490df717a85be3be335a70edaec5 (diff) | |
| download | rails-73a331c2acfce971aa2dda8e72af5edc6867e344.tar.gz rails-73a331c2acfce971aa2dda8e72af5edc6867e344.tar.bz2 rails-73a331c2acfce971aa2dda8e72af5edc6867e344.zip | |
Speed up table_exists? for databases with a large number of tables
At New Relic, we have hundreds of thousands of tables, and our migrations took 30 minutes without this similar patch. This cuts it down to a more reasonable amount of time.
The rescue false part is ugly, but necessary as far as I can tell. I don't know of a cross-database statement you can make that will work without trapping errors.
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