The pseudo table mechanism is a way to serially queue all table level locks through the use
of an internal pseudo tabe.In this table the database locks the row hash of
the table's table ID.
How does the database lock the row hash of table ID?Is there any field which is set to 1 or 0
to indicate that the tableID is locked?
No. There is a lock manager component on each AMP that maintains information about locked objects and active lock requests. This information may be displayed using the LOKDISP utility.