One is data analysis. I often have data in two or three different datastores that I need to analyze together (a column-oriented DB, one or more row-oriented DBs

One is data analysis. I often have data in two or three different datastores that I need to analyze together (a column-oriented DB, one or more row-oriented DBs, a key-value store, a document store, a Hadoop/Spark cluster) and it's nice to be able to use the same code to open and manage connections to any one of them. My queries are and always will be vendor-specific, but my connection handling is all just generic ODBC code. It's also great for WYSIWYG BI tools like Tableau or Power BI, which can connect to and fetch results from anything that has an ODBC driver. Without that, the BI tool vendor would need to write their own driver specific to each datastore on the market. So if anyone ever wants to build a generic BI/analytics tool product in Rust, this is a prerequisite.