Database benchmarks

[lastmjs]

// TODO I am tring to figure out how to creat repeatable benchmarks
// TODO I wonder if uploading transactions, like doing the string manipulation, on
// TODO the nodejs side would help
// TODO we could also create these databases beforehand
// TODO maybe we should do that?
// TODO these will be big though, ideally 100s of megabytes or even multiple gigabytes in size
// TODO do we want to test creating many records?
// TODO or do we just want to test querying, indexing, migrations once we have a lot of records?
// TODO things people might want to know:
// TODO max size of db
// TODO max number of rows of db
// TODO max number of tables of db
// TODO max size before indexes are too expensive
// TODO max size of queries, can you do efficient queries with millions of rows?
// TODO where do we store the database?
// TODO I say let's create a huge database
// TODO many tables with millions of records each
// TODO test upgrading
// TODO test interesting queries
// TODO test migrations
// TODO maybe test that indexes are kept up to date once created
// TODO so where do we host the huge db?