Tell us, do you want that you can specify more than one MySQL server address at connect, and if one of the servers doesn't work to connect to the next one in the list. Or use round-robin, so next connect will be to the next server, or some other strategy?
What about if you can specify a callback, so when you throw a SELECT or UPDATE for specific table + column the callback will be called to determine which MySQL server from a list to use - effectively allowing sharding.
Would you like to be able to throw the same query at many servers, like Domas' tool that can query hundreds of servers at once. This functionality could also verify that the results returned from the different servers are the same, or in case of DML - that all server get updated.
Any other ideas? Tell us!
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