> the backend constructs a complete SQL query statement in form of a string (including the SqlValues), and hands that to the database driver to parse. Is that indeed so?

Hi Olaf, that's the usual format for any HLL to pass statements (queries or updates) to SQL.

Most HLLs provide some sort of modulate/demodulate so your program doesn't see the raw numbers-as-strings, but the parsing is going on in the background.

Going via CSV isn't really saving anything: the "bulk insert" is again parsing those commas and the bits in between. (A dedicated SQL engine is probably more efficient than Haskell's string handling.)

AntC