A prepared SQL statement passed through the DBConnection machinery.
command selects which NIF runs the statement:
:query— returns rows as maps (viaTurso.Native.query_rows/3):query_rows— returns ordered columns and row values for Ecto:execute— returns the affected-row count (viaTurso.Native.execute/3):sync— triggers replica sync (viaTurso.Native.sync/1); the statement text is ignored