Beyond Rails Abstractions: A Dive into Database Internals

03-Aug-2017 3091
The downside of this level of insulation from core functionality is that developers don’t learn all of the things they perhaps should. Only last week I was able to troubleshoot a slow query by removing the index because someone along the line didn’t understand cardinality or how an index worked. Could you implement a database yourself? Let’s dig into another piece of technology that we take for granted!.
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