Does Microsoft release its SQL Query Hash Algorithm..?
Does Microsoft release its SQL Query Hash Algorithm..?


No, Microsoft does not release the hashing algorithm. Additionally, hashing happens at a different layer than original query text - so even if you had the algorithm, you'd still need to normalize like SQL Server does, first.


  This way I could do quick matches of the hash to be able see where in the codebase a particular query came from.


This assumes there also isn't anything like dynamic sql, SMO, etc., where there isn't an actual plain text query.