Need information

Hi All, At the core of nova-api, I am trying to trace the function which executes the SQL query for listing all the instances for a user. I want to know where in the code this query is executed. I have traced it till this point in the code: ---- if self.cells: results = context.scatter_gather_cells(ctx, self.cells, context.CELL_TIMEOUT, query_wrapper, do_query) --- in the file " https://github.com/openstack/nova/blob/c97507dfcd57cce9d76670d3b0d48538900c0... " But where in the above file, is the SQL query executed ? Please help me Thanks Kumar