Need better error messages e.g. when table does not exist #15
Description
If I have some metadata referencing a table which is not available in duckduckapi (due to some initialization error), then I get an obscure error message:
ExecutorError: Invalid SQL: {"error":"error in data fusion: External error: internal error: ndc_unexpected: ndc_client error: connector error: connector returned status code 500 Internal Server Error with message: Cannot read properties of undefined (reading 'fields'), details: {}"}
Ideally the error message should be "Table not found"