SQL Platform - include sensor value in Query

[VDRainer]

Not possible at the moment.

Add support for query_template to SQL integration

The SQL Integration currently supports use of the value_template configuration variable to allow definition of a template to extract a value from the payload. However, it does not currently support the use of a query_template configuration variable to allow for a dynamically defined SQL query. The use case I have is to be able to lookup a friendly text for error codes. Normally, I would use a template sensor to achieve this, but there are two concerns with doing this: We embed data in our co…