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by gtuhl 6154 days ago
A lot of generic SQL stuff in there for sure. But, last I worked with MySQL (it has admittedly been a few years) the indexing options were severely limited when compared with PostgreSQL. Last I used it you could not index an expression or qualify an index with a where clause for example. Also at that time MySQL could only make use of one index per query.

All of those deficiencies may have since been eliminated.