Performance optimisation of GetStreamsRequiringSnapshots. #398
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Optimisation of the GetStreamsRequiringSnapshots SQL as execution time in my use case (just several streams, but one with over a million events) has been growing linearly with the size of the single large stream to atm take in excess of 45 seconds. This proposal cuts the execution time back down to ~1 second.
Note that I've only got an MsSql installation against which I can test the proposed modification to CommonSqlStatements...