run_query_into(db, query, params, into_ref=pkeys_ref)

            pkeys_table_exists_ref[0] = True

    distinct_on = []

    def mk_main_select(joins, cols):

        return mk_select(db, joins, cols, conds, distinct_on, limit=limit,

        db.log_debug('Ignoring rows with '+str(in_col)+' = '+repr(value))

        cond = (in_col, sql_gen.CompareCond(value, '!='))

        assert cond not in conds # avoid infinite loops

    # Do inserts and selects

    join_cols = {}