func (r *editNodeRun) startEditNode(en *editNodeBase, rows planNode, tw tableWriter) error {
if sqlbase.IsSystemConfigID(en.tableDesc.GetID()) {
// Mark transaction as operating on the system DB.
en.p.txn.SetSystemConfigTrigger()
}
r.rows = rows
r.tw = tw
return r.tw.init(en.p.txn)
}
func (r *editNodeRun) expandEditNodePlan(en *editNodeBase, tw tableWriter) error {
if sqlbase.IsSystemConfigID(en.tableDesc.GetID()) {
// Mark transaction as operating on the system DB.
en.p.txn.SetSystemConfigTrigger()
}
if err := tw.expand(); err != nil {
return err
}
r.tw = tw
return r.rows.expandPlan()
}